Looking for an accurate way to gauge a client’s work effort? Just ask the client to spit. A study published in the March
issue of Journal of Sports Science & Medicine (2004; 3 , 8–15) shows that cortisol levels in saliva after a workout can
indicate whether the exercise session was high or low intensity.
A new service will allow personal trainers to customize workout programs for clients, recommend how-to videos for specific exercises and track their clients’ progress over time via a handheld device and the Internet.
As a personal trainer, you probably know that exercise has been shown to increase bone strength, as measured by bone mineral density (BMD), in people of all ages. But did you know that the degree to which exercise improves BMD depends on a variety of factors, including age, reproductive hormone status, nutritional status and the nature of the exercise?
Case Study: Weight Loss
According to the 1999-2000 National Health and Nutrition Examination Survey, more than 64.5 percent of Americans are obese or overweight (Centers for Disease Control and Prevention 2003). It's no wonder, then, that many clients cite weight loss as a main goal when starting a new exercise program. As personal trainers, we want our clients to reach their goals quickly and safely. However, results are sometimes hard to achieve, leading to frustration and dropout. A creative approach may be what's needed.
Clients who read about the occasional
athlete who suffers from a fatal incident on the basketball court or football field, or the marathon runner who “blows out his knees,” may ask, is exercise really safe? The best answer to that question is, Exercising is safer than remaining sedentary.