Effect of High-Intensity Resistance
Exercise on Elderly Bones
Vincent, K.R., & Braith, R.W. Resistance exercise and bone turnover in elderly men and women. Medicine & Science in Sports & Exercise, 34 (1), 17-23.
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.
Study. Information is limited regarding the risk of cardiovascular disease in persons with high-normal blood pressure (BP) (resting systolic BP of 130-139 millimeters of mercury [mm Hg] and/or resting diastolic BP of 85-89 mm Hg). Investigators from the Framingham Heart Study in Framingham, Massachusetts, investigated the association between BP category at baseline and the incidence of cardiovascular disease (CVD) on follow-up among 6,859 study participants who were initially free of hypertension and CVD.
Each year United Health Foundation publishes a very important report that ranks the 50 United States in 16 different health-related categories, including overall health. This report provides useful information for fitness professionals who aspire to justify and create health promotion and fitness programs for a variety of populations within a state. The data can also serve to rank which health promotion activities may be of greatest benefit within a state population—for example, physical activity, weight control and so on.
By Debra Wein, MS, RD
he glycemic index (GI) is often used to help people eat healthfully, reduce the risk of diabetes and improve exercise performance. GI is used to calculate glycemic load, which reflects the rate at which blood glucose (blood sugar levels) is raised by the carbohydrate content of different foods. Since sugars, starches and fiber are all carbohy...
By Janet Weller, RN
Maximum Heart Rate Formula: Missing the Mark?
Recent studies point to shortcomings in the common calculation method, especially for young and older adults.
hile for 30 years the fitness industry has relied on the formula 220 minus age (plus or minus 10 percent) to determine maximum heart rate, most trainers have seen clients whose numbers simply did not match...
Power Training for the Core
By Tom Seabourne, PhD Karate masters have known for centuries how to harness core power, the next logical step to putting some punch into your client's fitness program.
ow many possible ways can a personal trainer serve up abdominal exercises before a client loses interest? Core programs once focused primarily on sit-ups and crunches, but creative adaptations today have...
Exercise and Health: Dose-Response Issues
The multiple health benefits of regular physical activity are widely recognized. However, consensus has been lacking on what volume and type of exercise are required to generate particular benefits, in other words what exercise dose produces what response. On October 11 to 15, 2000, a symposium on dose-response issues related to aerobic activity ...
By Debra Wein, MS, RD
CRP and Cardiovascular Disease
racking your total cholesterol level is a good way to assess your risk of coronary heart disease. But is it enough? Despite progress in the prevention of cardiovascular disease, a significant number of first cardiovascular events occur among individuals without traditional risk factors, such as total cholesterol above 200 or L...