Exhausted passengers disembark stricken ship

MOBILE, Alabama—

A crippled cruise ship that lost power for more than four days in the Gulf of Mexico was pulled into a port in Mobile, Alabama, late on Thursday as passengers cheered the end of a "hellish" voyage marked by overflowing toilets and stinking cabins.

Tugboats pulled the Carnival Triumph into port in a drama that played out live on U.S. cable news stations, creating another public relations nightmare for cruise giant Carnival Corp. Last year, its Costa Concordia luxury ship grounded off the coast of Italy, killing 32 people.

Exhausted passengers lined the ship's decks, waving towels and flashlights and cheering as it pulled into dock, while hundreds of people watched from the shore.

Carnival officials said it could take up to five hours for the more than 4,200 people on board to disembark the ship, which has only one working elevator.

Once on solid ground, many passengers still had a lengthy journey ahead. More than 100 buses were lined up waiting to carry passengers on a seven-hour bus ride to Galveston, Texas, while others had elected to stay overnight in hotels in Mobile before flying home, Carnival said.

An engine fire on Sunday knocked out power and plumbing across most of the 893-foot vessel and left it adrift in the Gulf of Mexico. The ship, which went into service in 1999, was on a four-day cruise and on its way back from a stop in Cozumel, Mexico.

Over the last four days, passengers described an overpowering stench on parts of the ship and complained to relatives and media by cellphone that toilets and drainpipes overflowed, soaking many cabins and interior passages in sewage and turning the vessel into what some have described as a giant Petri dish.

"The thing I'm looking forward to most is having a working toilet and not having to breathe in the smell of fecal matter," said Jacob Combs, an Austin, Texas-based sales executive with a healthcare and hospice company.

Combs, 30, who said he had been traveling with friends and family on the Triumph, had nothing but praise for its crew members, saying they had gone through "hell" cleaning up after some of the passengers on the sea cruise.

"Just imagine the filth," Combs told Reuters. "People were doing crazy things and going to the bathroom in sinks and showers. It was inhuman. The stewards would go in and clean it all up. They were constantly cleaning," he said.

Officials greeted passengers with warm food and blankets and cell phones. Carnival Cruise Lines Chief Executive Gerry Cahill told reporters he planned to board the ship and personally apologize to passengers for their ordeal.

"I know the conditions on board were very poor," he said. "I know it was difficult. I want to apologize for subjecting our guests to that," he said.

"We pride ourselves with providing our guests with a great vacation experience and clearly we failed in this particular case."

Operated by Carnival Cruise Lines, the flagship brand of Carnival Corp, the ship left Galveston a week ago carrying 3,143 passengers and 1,086 crew. It was supposed to return there on Monday.

A Coast Guard cutter escorted the Triumph on its long voyage into port since Monday, and a Coast Guard helicopter ferried about 3,000 lbs of equipment including a generator to the stricken ship late on Wednesday.

Earlier in the week, some passengers reported on the poor conditions on the Triumph. They said people were getting sick and passengers had been told to use plastic "biohazard" bags as makeshift toilets.

Smoke from the engine fire was so thick that passengers on the lower decks in the rear of the ship had to be permanently evacuated and slept the rest of the voyage on the decks under sheets, passengers said.

'VERY CHALLENGING CIRCUMSTANCES'

Cahill has issued several apologies and Carnival, the world's largest cruise company, says passengers will receive a full credit for the cruise plus transportation expenses, a future cruise credit equal to the amount paid for this voyage, plus a payment of $500 a person to help compensate for the "very challenging circumstances" aboard the ship.

Mary Poret, who spoke to her 12-year-old daughter aboard the Triumph on Monday, rejected Cahill's apology in comments to CNN on Thursday, as she waited anxiously in Mobile with a friend for the Triumph's arrival.

"Seeing urine and feces sloshing in the halls, sleeping on the floor, nothing to eat, people fighting over food, $500? What's the emotional cost? You can't put money on that," Poret said.

Some passengers said conditions onboard improved on Thursday after the generator was delivered to the ship, providing power for a grill to cook hot food.

Carnival Corp Chairman and CEO Micky Arison faced criticism in January 2012 for failing to travel to Italy and take personal charge of the Costa Concordia crisis after the luxury cruise ship operated by Carnival's Costa Cruises brand grounded on rocks off the Tuscan island of Giglio. The tragedy unleashed numerous lawsuits against his company.

The cruise ship mogul has taken a low-key approach to the Triumph situation as well, even as it grabbed a growing share of the U.S. media spotlight. His only known public appearance since Sunday was courtside on Tuesday at a game played by his Miami Heat championship professional basketball team.

"I think they really are trying to do the right thing, but I don't think they have been able to communicate it effectively," said Marcia Horowitz, an executive who handles crisis management at Rubenstein Associates, a New York-based public relations firm.

"Most of all, you really need a face for Carnival," she added. "You can do all the right things. But unless you communicate it effectively, it will not see the light of day."

Carnival Corp shares closed down 11 cents at $37.35 in trading on Thursday on the New York Stock Exchange. The shares closed down 4 percent at $37.46 on Wednesday after the company said voyage disruptions and repair costs related to Carnival Triumph could shave up to 10 cents a share off its second-half earnings.

The Triumph is a Bahamian-flagged vessel and the Bahamas Maritime Authority will be the primary agency investigating the cause of its engine room fire.

Earlier this month, Carnival repaired an electrical issue on one of the Triumph's alternators. The company said there was no evidence of any connection between the repair and the fire.

For all the passengers' grievances, they will likely find it difficult to sue the cruise operator for any damages, legal sources said. Over the years, the cruise industry has put in place a legal structure that shields operators from big-money lawsuits.

(Additional reporting by David Adams and Kevin Gray in Miami, Writing by Tom Brown; Editing by Peter Cooney and Lisa Shumaker)

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Well: Ask Well: Swimming to Ease Back Pain

Many people find that recreational swimming helps ease back pain, and there is research to back that up. But some strokes may be better than others.

An advantage to exercising in a pool is that the buoyancy of the water takes stress off the joints. At the same time, swimming and other aquatic exercises can strengthen back and core muscles.

That said, it does not mean that everyone with a case of back pain should jump in a pool, said Dr. Scott A. Rodeo, a team physician for U.S.A. Olympic Swimming at the last three Olympic Games. Back pain can have a number of potential causes, some that require more caution than others. So the first thing to do is to get a careful evaluation and diagnosis. A doctor might recommend working with a physical therapist and starting off with standing exercises in the pool that involve bands and balls to strengthen the core and lower back muscles.

If you are cleared to swim, and just starting for the first time, pay close attention to your technique. Work with a coach or trainer if necessary. It may also be a good idea to start with the breaststroke, because the butterfly and freestyle strokes involve more trunk rotation. The backstroke is another good option, said Dr. Rodeo, who is co-chief of the sports medicine and shoulder service at the Hospital for Special Surgery in New York.

“With all the other strokes, you have the potential for some spine hyperextension,” Dr. Rodeo said. “With the backstroke, being on your back, you don’t have as much hyperextension.”

Like any activity, begin gradually, swimming perhaps twice a week at first and then progressing slowly over four to six weeks, he said. In one study, Japanese researchers looked at 35 people with low back pain who were enrolled in an aquatic exercise program, which included swimming and walking in a pool. Almost all of the patients showed improvements after six months, but the researchers found that those who participated at least twice weekly showed more significant improvements than those who went only once a week. “The improvement in physical score was independent of the initial ability in swimming,” they wrote.

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Push for online sales taxes pick up steam in Congress

U.S. states could collect millions of dollars in online sales taxes, with members of both parties in Congress sponsoring legislation Thursday that would resolve states' decades-long struggle to tax businesses beyond their borders.

"Small businesses and states alike are suffering from the inability to collect due -- not new -- taxes from purchases made online," said Rep. Steve Womack, R-Ark., adding the legislation is a "bipartisan, bicameral, common-sense solution that promotes states' rights and levels the playing field for our Main Street businesses."

Legislation on the Amazon tax, named for the colossal Internet retailer, has languished for years.

In 1992 the Supreme Court decided the patchwork of state tax laws made it too difficult for online retailers to collect and remit sales taxes. So states can tax Internet only sales made by companies with a physical presence in the states. That means online retailers such as Amazon.com Inc. collect sales tax in some states and not in others.

The bills introduced on Thursday reconcile differences in legislation that the House of Representatives and Senate considered last year. The nearly identical details in the bills and strong bipartisan support mean the final bill could be sent to President Barack Obama this year.

Members of Congress recently assured state lawmakers they would pass a law in 2013.

In the last decade, Internet sales have gone from 1.6 percent of all U.S. retail sales to more than 5 percent, according to Commerce Department data, a proportion that will likely grow as shoppers make more purchases on handheld devices. In the third quarter of 2012,  "e-commerce" sales were $57 billion, the department said.

Large Internet retailers are worried the tax could drive up the cost of doing business. They would also have to create new systems and software to collect the surcharges, adding to their costs. Amazon said in July it prefers having the tax issue resolved at the federal level.

When the 2007-09 recession caused states' revenues to collapse, Republican and Democratic governors backed the tax as a financial solution that would not require federal aid.

A leader in the Republican party, Virginia Gov. Bob McDonnell went so far as to figure online tax revenue into his recent plan for overhauling the state's transportation funding.

"The revenue states are losing out on is legally owed, but because of a pre-Internet Supreme Court ruling, states aren't able to collect it," Sen. Deb Peters, R-S.D., said in a statement.

States and cities say they can recoup billions of dollars with the tax. Fitch Ratings estimates put the states' loss at $11 billion.

Some states are considering their own legislation. Florida is debating a bill that advocates say could bring the state more than $400 million.

Small retailers, meanwhile, have said the sales tax will will allow them to compete with massive online retailers.

"While store owners collect and remit state and local sales taxes their digital competitors are off the hook -- and benefiting because of it," said David French, the National Retail Federation's senior vice president for government relations, in a statement.

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Anxiety grows as Chicago Public Schools narrows closing list

After trimming the number of schools that could be closed to 129, Mayor Rahm Emanuel's school administration on Wednesday entered the latest and what is likely to be the most intense phase so far in trying to determine which schools should be shut.

Chicago Public Schools chief Barbara Byrd-Bennett is expected to pare the preliminary list before unveiling a final one at the end of March. She said administrators will determine which schools are saved in the coming weeks amid a final round of community meetings to hear arguments from parents, teachers and community groups about why their schools should stay open.

If a hearing Wednesday night in North Lawndale was any indication, CPS still has a long way to go to gain the public's trust.

"Our schools don't need to close," Dwayne Truss, vice chairman of CPS' Austin Community Action Council, said in front of hundreds of people packed inside a church auditorium in the West Side neighborhood. "CPS is perpetrating a myth that there's a budget crisis."

CPS initially said 330 of its schools are underenrolled, the chief criterion for closing. Members of a commission assembled to gather public input on the issue told CPS officials earlier this year that closing a large number of schools would create too much upheaval. The Tribune, citing sources, said the commission indicated a far smaller number should be closed than initially feared, possibly as few as 15.

CPS then started holding its own hearings and on Wednesday, while following many of the formal recommendations made by the Commission on School Utilization, said 129 schools still fit the criteria for closing.

The new number and the latest round of hearings sets the stage for the administration to counter questions about the district's abilities to close a large number of schools and the need to do so.

For many who have already turned up to school closing meetings, this final round of hearings will be even more critical. School supporters must show how they plan to turn around academic performance and build enrollment, and also make the case for any security problems that would be created by closing their school.

"We are prepared now to move to the next level of conversation with our community and discuss a list of approximately 129 schools that still require further vetting and further conversation," Bryd-Bennett said. "We are going to take these 129 and continue to sift through these schools."

In the past, political clout has played a role in the district's final decisions. Already this year, several aldermen have spoken out on behalf of schools in their wards.

On the Near Northwest Side, for instance, the initial list of 330 underused schools included about six in the 1st Ward. Ald. Proco "Joe" Moreno helped organize local school council members, school administrators and parents to fight any closing. He also took that fight to leaders in City Hall and within CPS' bureaucracy. Nearly all of the schools in the ward were excluded from the list of 129.

"It is effort and it's organizing and not just showing up at meetings and yelling. Anybody can do that," Moreno said. "Those schools that proactively work before those meetings and explain what they are doing, what they need and that they are willing to accept new students, that's when politics works.

"My responsibility in this juncture was to focus on these schools," he said. "I had to work on the inside, with CPS and with City Hall, and with my schools on the outside."

Most of the schools on the list of 129 are on the West, South and Southwest sides, many in impoverished neighborhoods that saw significant population loss over the last decade. Largely spared were the North and Northwest sides.

In all, more than 43,000 students attend those 129 schools on the preliminary list, according to CPS records.

The area with the most schools on the list is a CPS network (the district groups its schools in 14 networks) that runs roughly from Madison Street south to 71st Street and from the lake to State Street. The preliminary list includes 24 schools in that area.

The Englewood-Gresham network has the second-largest number, 19, while the Austin-North Lawndale network where Wednesday night's meeting was held still has 16 schools on the list.

CPS critics said the preliminary list is still too large to be meaningful and that the district's promise to trim it before March 31 is only a tactic to make the final number seem reasonable.

"They started out with such a far-fetched, exaggerated list of schools, many of which are nowhere near underutilized," said Wendy Katten, co-founder of the parent group Raise Your Hand. "They might appear to be looking like they're listening, but they're not. They have not done a thorough and substantive assessment of these schools."

Following the commission's recommendations, CPS last month removed high schools and schools performing at a high level academically from consideration. On Wednesday, the district said schools with more than 600 students or utilization rates of at least 70 percent have also been taken out of consideration for closing.

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Use of Morning-After Pill Is Rising, Report Says

The use of morning-after pills by American women has more than doubled in recent years, driven largely by rising rates of use among women in their early 20s, according to new federal data released Thursday.

The finding is likely to add to the public debate over rules issued by the Obama administration under the new health care law that require most employers to provide free coverage of birth control, including morning-after pills, to female employees. Some religious institutions and some employers have objected to the requirement and filed lawsuits to block its enforcement.

Morning-after pills, which help prevent pregnancy after sex, were used by 11 percent of sexually active women from 2006 to 2010, the period of the study. That was up from just 4 percent in 2002. Nearly one in four women between the ages of 20 and 24 who had ever had sex have used the pill at some point, the data show.

Morning-after pills are particularly controversial among some conservative groups who contend they can cause abortions by interfering with the implantation of a fertilized egg that the groups regard as a person.

Medical experts say that portrayal is inaccurate, and that studies provide strong evidence that the most commonly used pills do not hinder implantation, but work by delaying or preventing ovulation so that an egg is never fertilized in the first place, or thicken cervical mucus so sperm have trouble moving.

This month, the Obama administration offered a proposal that could expand the number of groups that do not need to provide or pay for birth control coverage. But the proposal did not end the political fight over the issue, which legal experts say may end up in the Supreme Court.

The new data was released by the National Center for Health Statistics and based on interviews with more than 12,000 women from 2006 to 2010. Researchers asked sexually active women if they had ever used emergency contraception, “also known as Plan B, Preven or morning-after pills,” as well as about their use of other forms of birth control.

Over all, 99 percent of sexually active women ages 15 to 44 have used contraception at some point in their lives, or about 53 million women, up slightly from 2002. An earlier report found that 62 percent of all women of reproductive age were currently using some form of birth control.

The new report found that 98.6 percent of sexually active Catholic women had used contraception at some point, but the data did not show how many Catholic women currently use contraception.

Condom use has risen markedly. More than 93 percent of women said they had partners who had used condoms at some point, compared with 82 percent of women in 1995, a likely effect of strong public advocacy for condom use during the AIDS epidemic.

In contrast, women who had used intrauterine devices, or IUDs, at some point in their lives declined to about 8 percent from 10 percent in 1995. The use of birth control pills has remained steady since 1995 at 82 percent.

Eighty-nine percent of white women said they had used birth control pills at some point, compared with 67 percent of Hispanic women, 78 percent of black women and 57 percent of Asian women.

Education played a role in the type of contraception used. Forty percent of women without a high school diploma said they chose sterilization, while just 10 percent of women with a bachelor’s degree said they used that method. Those without a high school diploma were also far more likely to use three-month injectables, like Depo-Provera — 36 percent compared with 13 percent of women with a college degree.

About 12 percent of college graduates said they had used emergency contraception, while 7 percent of women with only a high school degree said they had used it.

Educated women were far more likely to have practiced periodic abstinence based on the menstrual cycle. About 28 percent of women with a master’s degree or higher had practiced this method, while just 13 percent of women without a high school diploma had, the report found.

White women, American-born Hispanic women and black women were most likely to practice withdrawal, with more than half of women in each group saying they have used that method. Just 44 percent of foreign-born Hispanics said they practiced withdrawal.

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Sources: American, US Airways boards approve merger

The boards of AMR Corp and US Airways Group Inc each met on Wednesday to approve a merger that would create the world's largest airline with an expected market value of around $11 billion, people familiar with the matter said.

The all-stock merger, which is set to be announced early on Thursday, would finalize the consolidation of legacy U.S. air carriers that helped put the industry on a more solid financial footing.

AMR's bankruptcy creditors will own 72 percent of the combined airline, which will do business under the American Airlines brand and be based in Fort Worth, Texas, the people said. US Airways shareholders will own the rest.

The board approval came after AMR's unsecured creditors committee, which includes all three of AMR's major unions, met earlier on Wednesday to approve a proposed merger agreement, the people said.

The merged company will have a board of 12 members: four from US Airways including its chief executive Doug Parker, three from AMR including chief executive Tom Horton and five to be designated by the AMR creditors, two of the people said.

That will shrink to 11 members in 2014 after Horton steps down following the combined company's first annual meeting, the person added. Parker becomes chief executive of the new airline.

AMR's unsecured creditors are expected to be made whole on their claims in the form of stock in the merged company and also get accrued interest, the people said. AMR's shareholders will get a small equity stake as well, they added.

All the sources asked not to be named because the matter was not public. US Airways declined to comment while AMR representatives could not be immediately reached for comment.

The deal comes more than 14 months after the bankrupt parent of American Airlines filed for bankruptcy in November 2011, and would mark the last combination of legacy U.S. carriers, following the Delta-Northwest and United-Continental mergers.

A tie-up with US Airways would create the world's top airline by passenger traffic and help American and US Air better compete with United Continental Holdings and Delta Air Lines.

Some $11 billion valuation of the combined American-US Airways compares to the roughly $12.4 billion market capitalization for Delta, and $8.7 billion for United Continental.

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Dorner manhunt: Fate of fugitive ex-cop is unclear

ANGELUS OAKS, California (Reuters) - A gunman thought to be an ex-cop who led California authorities on a six-day manhunt barricaded himself inside a mountain cabin northeast of Los Angeles on Tuesday and traded gunfire with police, killing one before the cabin burned to the ground.

Hours after the cabin went up in flames, uncertainty surrounded the fate of the man who authorities said earlier they presumed to be fugitive former Los Angeles policeman Christopher Dorner, 33, suspected of a revenge-fueled killing spree in the region.

No body had yet been recovered from the smoldering ruins, despite several media reports to the contrary, because the site was still too hot for police to enter and search, authorities said.

San Bernardino County Sheriff's spokeswoman Cindy Bachman later told reporters in the nearby mountain town of Angelus Oaks, "We believe he was still inside" after the cabin caught fire.

The death of a sheriff's deputy in the shootout at the cabin, located in the snow-covered, wooded hills of the San Bernardino National Forest, brought to four the number of killings Dorner is suspected of committing. A second sheriff's deputy was wounded in Tuesday's gunfight.

An angry, rambling manifesto posted last week on Dorner's Facebook page claimed he had been wrongly terminated from the Los Angeles Police Department in 2008. He vowed to seek revenge by unleashing "unconventional and asymmetrical warfare" on police officers and their families.

Tuesday's climax to the saga, following several days in which Dorner eluded law enforcement, unfolded after police learned that a gunman they believed was him had broken into a home near the ski resort community of Big Bear Lake, tied up a couple and stole their vehicle, authorities said.

GAME WARDENS ENCOUNTER SUSPECT

State game wardens later spotted the stolen vehicle and gave chase. The suspect crashed the car in the course of his getaway attempt, then quickly commandeered a pickup truck at gunpoint from another motorist and continued to flee, said Lieutenant Patrick Foy of the state Fish and Wildlife Department.

As game wardens pursued him, the suspect fired at them from the window of the truck, and one of the game officers stopped his truck and fired back with a high-powered rifle, Foy said, adding that he did not know whether the suspect was hit.

Several bullets struck the warden's vehicle, but officers got close enough at one point to get a good look at his face and recognized him as Dorner, Foy said.

Bachman said the suspect ultimately abandoned the pickup and fled on foot into the woods to a cabin believed to be vacant, where he holed up inside and exchanged fire with sheriff's deputies who closed in on the building.

Local television news footage of the shootout showed several officers taking cover from a barrage of gunfire audible in the broadcast. Sheriff John McMahon later confirmed that one deputy was killed and another wounded in the ensuing shootout.

After a lull in the gunfire, the cabin suddenly caught fire, with smoke and flames seen engulfing the structure. Loud popping sounds could be heard from inside.

Bachman said a "smoke bomb" had been set off at the cabin before the fire started, but she was uncertain if it had been detonated by the gunman or by law enforcement authorities.

Los Angeles Police Chief Charlie Beck has called the search for Dorner the most extensive manhunt in the region's history.

ACCUSED OF AMBUSHING POLICE

Dorner's last confirmed encounter with authorities came early last Thursday, when police said he ambushed two policemen at a traffic light in Riverside, about 60 miles east of Los Angeles. One officer was killed and the other wounded.

Dorner, a former Navy officer, is also suspected of exchanging gunfire on Thursday with police and wounding one officer in nearby Corona.

Law enforcement later that day converged on the Big Bear area when a pickup truck identified as the one Dorner had been driving was found abandoned and burning in the snow, launching an intense search of the mountain as Dorner seemed to vanish.

He first came to public notice last Wednesday when police identified him as a suspect in the slayings of a campus security officer and his fiancee, the daughter of a retired Los Angeles police captain. In the manifesto posted on his Facebook page, Dorner blamed the captain for his dismissal from the LAPD.

The couple, Keith Lawrence, 27, and Monica Quan, 28, an assistant college basketball coach, were found shot dead on February 3 in their car on the top level of a parking structure in the city of Irvine, south of Los Angeles.

Quan's father, Randy Quan, had represented Dorner in disciplinary proceedings that led to his dismissal after a police inquiry found Dorner had made false statements accusing a superior officer of using excessive force, police said.

Riverside County prosecutors have formally charged Dorner with one count of first-degree murder and three counts of attempted murder in connection with Thursday's shootings of police officers.

Authorities posted a $1 million reward for information leading to Dorner's capture, an amount they said was the largest ever offered in a Southern California criminal investigation.

(Reporting by Brandon Lowrey; Additional reporting by Alex Dobuzinskis and Dana Feldman; Writing by Steve Gorman; Editing by Cynthia Johnston and Eric Beech)

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Well: Getting the Right Dose of Exercise

Phys Ed

Gretchen Reynolds on the science of fitness.

A common concern about exercise is that if you don’t do it almost every day, you won’t achieve much health benefit. But a commendable new study suggests otherwise, showing that a fairly leisurely approach to scheduling workouts may actually be more beneficial than working out almost daily.

For the new study, published this month in Exercise & Science in Sports & Medicine, researchers at the University of Alabama at Birmingham gathered 72 older, sedentary women and randomly assigned them to one of three exercise groups.

One group began lifting weights once a week and performing an endurance-style workout, like jogging or bike riding, on another day.

Another group lifted weights twice a week and jogged or rode an exercise bike twice a week.

The final group, as you may have guessed, completed three weight-lifting and three endurance sessions, or six weekly workouts.

The exercise, which was supervised by researchers, was easy at first and meant to elicit changes in both muscles and endurance. Over the course of four months, the intensity and duration gradually increased, until the women were jogging moderately for 40 minutes and lifting weights for about the same amount of time.

The researchers were hoping to find out which number of weekly workouts would be, Goldilocks-like, just right for increasing the women’s fitness and overall weekly energy expenditure.

Some previous studies had suggested that working out only once or twice a week produced few gains in fitness, while exercising vigorously almost every day sometimes led people to become less physically active, over all, than those formally exercising less. Researchers theorized that the more grueling workout schedule caused the central nervous system to respond as if people were overdoing things, sending out physiological signals that, in an unconscious internal reaction, prompted them to feel tired or lethargic and stop moving so much.

To determine if either of these possibilities held true among their volunteers, the researchers in the current study tracked the women’s blood levels of cytokines, a substance related to stress that is thought to be one of the signals the nervous system uses to determine if someone is overdoing things physically. They also measured the women’s changing aerobic capacities, muscle strength, body fat, moods and, using sophisticated calorimetry techniques, energy expenditure over the course of each week.

By the end of the four-month experiment, all of the women had gained endurance and strength and shed body fat, although weight loss was not the point of the study. The scientists had not asked the women to change their eating habits.

There were, remarkably, almost no differences in fitness gains among the groups. The women working out twice a week had become as powerful and aerobically fit as those who had worked out six times a week. There were no discernible differences in cytokine levels among the groups, either.

However, the women exercising four times per week were now expending far more energy, over all, than the women in either of the other two groups. They were burning about 225 additional calories each day, beyond what they expended while exercising, compared to their calorie burning at the start of the experiment.

The twice-a-week exercisers also were using more energy each day than they had been at first, burning almost 100 calories more daily, in addition to the calories used during workouts.

But the women who had been assigned to exercise six times per week were now expending considerably less daily energy than they had been at the experiment’s start, the equivalent of almost 200 fewer calories each day, even though they were exercising so assiduously.

“We think that the women in the twice-a-week and four-times-a-week groups felt more energized and physically capable” after several months of training than they had at the start of the study, says Gary Hunter, a U.A.B. professor who led the experiment. Based on conversations with the women, he says he thinks they began opting for stairs over escalators and walking for pleasure.

The women working out six times a week, though, reacted very differently. “They complained to us that working out six times a week took too much time,” Dr. Hunter says. They did not report feeling fatigued or physically droopy. Their bodies were not producing excessive levels of cytokines, sending invisible messages to the body to slow down.

Rather, they felt pressed for time and reacted, it seems, by making choices like driving instead of walking and impatiently avoiding the stairs.

Despite the cautionary note, those who insist on working out six times per week need not feel discouraged. As long as you consciously monitor your activity level, the findings suggest, you won’t necessarily and unconsciously wind up moving less over all.

But the more fundamental finding of this study, Dr. Hunter says, is that “less may be more,” a message that most likely resonates with far more of us. The women exercising four times a week “had the greatest overall increase in energy expenditure,” he says. But those working out only twice a week “weren’t far behind.”

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Downtown condo market showing signs of life

Downtown Chicago's condo market is on the rebound after many moribund years, as sales volume and pricing improve in a market constrained by a lack of inventory.

It's a rare piece of good news for downtown condo owners as well as for developers pondering projects and trying to line up financing.

With a steady stream of apartment projects delivering in the next two years, the lack of new condo construction could signal opportunities for companies interested in pursuing smaller projects in key neighborhoods because the demand is there. Until those projects materialize, condo owners looking to sell face a better market than they have in several years.

Sales of existing downtown condos rose 31.2 percent last year, to 4,675 units sold, while the median sales price of $300,000 was a gain of about 2.6 percent from 2011, according to data from Appraisal Research Counselors.

Another piece of good news for current condo owners: Of the 65 downtown buildings studied by the firm, the average sales price per square foot of units sold during the second half of last year rose while the number of distressed condo sales in those buildings saw a substantial drop. Distressed sales, which accounted for  28 percent of sales since 2010, fell to 17 percent of sales during the second half of 2012.

In addition, only 1,104 newly constructed condo units remain unsold downtown.

"When we see more transactions occurring, that's a really good indication of demand," said Gail Lissner, a vice president at the firm. "The look of the condo market has changed in terms of unsold inventory."

Lissner's remarks came Tuesday during a lunchtime briefing on the local housing market.

Most of the unsold inventory, more than 500 units, is in the South Loop and the bulk of it is in the newly named and repositioned 500-unit South Loop Luxury by Related.

The three buildings, once called One Museum Park West, 1600 Museum Park and Museum Park Place 2 were taken over by New York-based Related Cos. in July have been renamed the Grant, Adler Place and Harbor View, respectively.

Since December, 40 units there are under contract, according to Related Midwest, which officially launched sales in the project Tuesday.

Other new projects reporting positive sales trends are Park Monroe Phase II, a 48-unit adaptive reuse project with 16 sales and CA3, a 40-unit building with 18 sales.

"These are all great indicators of strong sales," Lissner said. "Price stabilization has occurred in the market. You don't hear people talking about bottoming out. That was so yesterday."

mepodmolik@tribune.com | Twitter @mepodmolik

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Hadiya's dad: 'Thanking God that these two guys are off the streets'

Two reputed gang members were out for revenge from a previous shooting when they opened fire on a group of students in a South Side park last month, killing 15-year-old Hadiya Pendleton in a heartbreaking case that has brought national attention to Chicago's rampant gun violence, police said.

Michael Ward, 18, and Kenneth Williams, 20, were each charged with first-degree murder, attempted murder and aggravated battery with a firearm in the Jan. 29 attack that also left two teens wounded.

Ward confessed to police that he and Williams mistook a Pendleton companion for rivals who had shot and wounded Williams last July, police Superintendent Garry McCarthy said at a news conference Monday night at the Area Central police headquarters.

Ward told police that he and Williams got out of their car, crept up on the group and opened fire in Harsh Park, McCarthy said. Williams then drove them from the scene, he said.

"The offenders had it all wrong. They thought the group they shot into included members of a rival gang. Instead it was a group of upstanding, determined kids who, like Hadiya, were repulsed by the gang lifestyle," said McCarthy, flanked by two dozen detectives and gang investigators who worked the case.

Detectives arrested the two Saturday night as the suspects were on their way to a suburban strip club to celebrate a friend's birthday, McCarthy said. Pendleton had been buried only hours earlier in a funeral attended by first lady Michelle Obama.

"I don't even know what to say about that," McCarthy said. "They were going out to celebrate at a strip club."

Williams did not confess and police have not recovered a weapon, McCarthy said. Both are due in bond court Tuesday.

Hadiya's father, Nathaniel Pendleton, said Monday night that news of the charges marked the first time since his daughter's slaying that he had a "legitimate" smile on his face.

"I'm ecstatic that they found the two guys," he told the Tribune during a brief telephone interview from Washington, D.C., where he and wife Cleopatra Cowley-Pendleton will attend the State of the Union address Tuesday as guests of President Barack Obama. "(I'm) thanking God that these two guys are off the streets, so that this doesn't happen to another innocent person."

Danetria Hutson, 15, who held Hadiya in her arms after she was shot, said she and others in the group have had nightmares since the shooting.

In addition to waking up in the middle of the night, Hutson, also a sophomore at King, said she and other in that group also haven't been able to bring themselves to hang out at parks since that day.

"A lot of us were actually paranoid because the guys were still out there," Hutson said in a telephone interview. "They knew where we went to school."

On Monday night, Hutson was a little frustrated because of the "ignorance" portrayed in social media, where some people are suggesting that Ward and Williams weren't involved in Hadiya's slaying. But Hutson felt a sigh of relief today when charges were announced against them.

"I just want to see how her family reacts," she said. "It gave me some closure, but I don't think (Hadiya's) family will get closure."

McCarthy said that two days before the killing, police had stopped Ward in his Nissan Sentra as part of a routine gang investigation. That information wound up being the starting point for detectives when witnesses in the shooting described seeing a similar car driving away from the shooting scene, he said.

Through surveillance and interviews — including several fruitful interviews with parolees in the neighborhood — detectives were able to home in on Ward and Williams, McCarthy said. On Saturday night, the decision was made to stop the two if they were spotted. Police watched as they departed in a caravan of cars headed to the strip club in Harvey. They were stopped near 67th Street and South King Drive and taken in for questioning.

McCarthy said Williams was shot July 11 at 39th Street and South Lake Park Avenue, and an arrest was made. But that gunman was let go after Williams refused to cooperate, McCarthy said.

McCarthy also noted that at the time of Hadiya's slaying, Ward was on probation for a weapons conviction. McCarthy said weak Illinois gun laws allowed Ward to avoid jail time because of the absence of mandatory minimum sentences.

"This incident did not have to occur," McCarthy said. "And if mandatory minimums existed in the state of Illinois, Michael Ward would not have been on the street to commit this heinous act."

In announcing the charges, McCarthy praised the "meticulous" detective work that led to the arrests, but he also expressed frustration that despite a $40,000 reward for information in the shooting, no one who had knowledge of the crime came forward.

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