Everyone knows that proper nutrition and consistent exercise are essential for weight loss. However, not everyone realizes how important sleep is as well.
“Sleep loss disrupts a complex and interwoven series of metabolic and hormonal processes and may be a contributing factor to obesity,” said John Winkelman, MD, PhD, medical director of the Sleep Health Center at Brigham and Women’s Hospital and assistant professor of psychiatry at Harvard Medical School.
Researchers at the American Institute for Cancer Research (AICR) think they may have uncovered one reason why overweight, inactive individuals have a higher risk for many cancers. They suspect that a major culprit is the increase in levels of insulin and other hormones often associated with excess weight. These higher levels—along with other conditions that collectively form what is known as “metabolic syndrome”—are also linked to cardiovascular disease and other chronic diseases.
Obesity and overweight statistics can vary widely from study to study, mainly because of the criteria each uses to classify persons as overweight or obese. Usually, a baseline number represented as body mass index (BMI) is used to differentiate one group from another. The following statistics were provided by the Weight-Control Information Network of the National Institute of Diabetes and Digestive and Kidney Diseases, a part of the National Institutes of Health (except where noted in superscript).
The goal of reaching 10 million health club members by 2010 was referred to by many speakers at the recent IHRSA International Convention & Trade Show in March. How to achieve that goal? Speakers referred to retention-oriented programs, well-trained staff and customer service.
Every day, fitness professionals are faced with a multitude of questions—on topics ranging from losing weight to rehabilitating injuries. While it is difficult to know all the answers, providing clients with ready responses can be a testament to your professional credibility. This article addresses some of the more popular questions clients ask and provides the information you need to answer them quickly.
The American College of Sports Medicine (ACSM) recently published its current Position Stand on “Appropriate Intervention Strategies for Weight Loss and Prevention of Weight Regain for Adults” (Jakicic, J.M., et al., 2001, Medicine & Science in Sports & Exercise, 33 , 2145-56). This evidence-based position paper updates existing guidelines, including those pertaining to the quality and quantity of exercise necessary for weight loss.