|
|
NEWS
RECALLS
COMPLAINT FORM
SCAM ALERTS
RESOURCES
Small Claims Guide Class Actions Lemon Laws FAQ Newsletters |
Share |
| Automotive Education Employment Electronics Family Finance Health Homeowners Insurance Pets Shopping Travel |
|
|
|
![]() |
Weekends Hard On Diets, Study FindsA week's progress can be quickly erased |
|||||||||||||
|
July 3, 2008
Researchers at Washington University School of Medicine in St. Louis found that study subjects on strict diet and exercise programs tend to lose weight more slowly than expected because they eat more on weekends than during the week. Past research had confirmed that people tend to gain weight during the holidays, particularly between Thanksgiving and New Year's, but this is the first study to carefully monitor daily body weight, calorie intake and calorie expenditure for several weeks throughout a year, and to demonstrate that increased caloric intake isn't just a problem during the holidays. It also happens on most weekends. "We thought weekends would present a problem for some people attempting to lose weight, but the consistency of our finding before and during the interventions was surprising," says first author Susan B. Racette, Ph.D., assistant professor of physical therapy and of medicine. "Subjects in the diet group lost weight during the week, but over the weekend, they stopped losing weight because they were eating more." Racette's team followed 48 adults between the ages of 50 and 60 who took part in the CALERIE (Comprehensive Assessment of Long-term Effects of Reducing Intake of Energy) study. Body mass index (BMI) ranked subjects as overweight or healthy weight when the study began. None were classified as obese. Following earlier studies demonstrating that mice and rats live longer, healthier lives when on a calorie restricted diet, the CALERIE study is designed to determine whether taking in fewer calories over a long time period will slow down or reverse some of the common markers of aging and disease. "But rats don't have weekends the way people do," Racette said. "On weekends, human lifestyle patterns can be very different. People have social events, parties to attend, and if they have children who play sports, they might be at fields all day long, relying on concession stands for food." Study participants were divided into three groups: the first lowered their daily calorie intake by 20 percent, a second increased daily physical activity by 20 percent, and a third, control group did not change diet or activity levels. All three groups were monitored for one year. They kept food diaries, tracked exercise with accelerometers and were weighed regularly. Racette says people in the study didn't always realize they were eating significantly more food on weekends. "It was surprising how consistent the findings were," she said. "We also were surprised by the dramatic way in which weekends continued to slow weight loss throughout the course of the study." Before the interventions began, the researchers established "baselines" for each study participant's exercise and eating habits. This pre-intervention data determined that participants consumed the most calories on Saturdays. An average of 36 percent of their total calories came from fat on Saturdays, but less than 35 percent came from fat during the rest of the week. The typical weekend weight gain before the diet and exercise interventions began would have led to an average increase of 9 pounds a year. When study participants were asked either to cut calories by 20 percent or to increase activity by a like amount, the pattern remained the same. Those in the calorie restriction group took in more energy on Saturday. Those in the exercise group ate more on both Saturday and Sunday. As a result, people in the calorie restriction group stopped losing weight on weekends, and those in the exercise group actually gained weight on weekends. "People on diets often don't lose as much weight as we would expect, and this finding helps to explain why," she said. As the researchers move into the second phase of the CALERIE study, looking at more subjects over a longer period of time, they now recommend that participants weigh themselves daily in order to be more aware of their patterns of weight loss and weight gain, particularly on weekends. For those not in a research study, she recommends moderation and careful planning to avoid weekend pitfalls. "Planning ahead can't be emphasized enough," Racette says. She recommends packing healthy food if you're running errands, eating a little something so you aren't starving when you arrive at a party, even packing a light lunch before going to the kids' ballgames so that you have a choice other than junk food at a concession stand. "In addition, she says, "paying closer attention to portion sizes can enable a person to enjoy the weekend without sabotaging weight-control efforts." The investigators report their findings in the advance online publication of the journal Obesity. Report Your Experience
|
|||||||||||||
Advertisement
|
|
Custom Search
|
||||
|
AUTOMOTIVE Dealers Manufacturers Service Extended Warranties Lemon Laws Recalls Tires Transporters FAMILY Aging Children, Parenting Recalls Dating Education Entertainment Pets Weddings |
FINANCE Annuities Banks Credit Cards Debt Collection Debt Counseling Insurance Investing Loans Mortgages Payday Loans Student Loans Tax Prep HEALTH Doctors Drugs, Pharmacies Health Clubs Hearing Care Hospitals Nursing Homes Nutrition, Diets Vision Care Weight Loss |
HOUSE & HOME Appliances Cookware Furniture Home Improvements Lawn & Garden Movers Pools & Spas Realtors, Rental Agents Recalls Utilities ELECTRONICS Cable TV/DBS Cameras Cell Phones Computers Home Electronics Internet Access Local Phone Service Long Distance VoIP |
SHOPPING In-Home Online Retail Stores Sporting Goods Supermarkets Telemarketers TRAVEL Airlines Bus Lines Car Rental Cruises Hotels Travel Agents Trains RESOURCES Class Actions Complaint Form Small Claims Guide Lemon Laws |
CONSUMER NEWS Latest News Automotive Telecom Financial Health Homeowners Scams Seniors Travel More ... RECALLS Automotive Children's Products Drugs Food Household Products Sporting Goods ABOUT US FAQ Privacy Policy Advertise With Us Newsroom Syndication Terms of Use |
Terms of Use Your use of this site constitutes acceptance of the Terms of Use
Copyright © 2003-2009 ConsumerAffairs.com Inc. All Rights Reserved. The contents of this site may not be republished, reprinted, rewritten or recirculated without written permission. |
|