By Derek Marks, MS, and Len Kravitz, PhD
Hormones and Resistance Exercise
ormones play a large role in the muscle hypertrophy and strength gained from resistance exercise. While hypertrophy and strength gained in men are attributed to increased levels of testosterone, it is still unclear how women are able to respond similarly to resistance training in the absence of increas...
By Karen Asp, MA
Get Tough With Tubing
ith so much new equipment emerging all the time, it's easy to forget about those tried-and-true elastic tubes and bands. But guess what? They are making a strong comeback in group fitness classes. And for a good reason: Used well, they really work! If you review a few principles and get a creative jumpstart, you can rediscover elastic resistanc...
By Todd Astorino, MS, and Len Kravitz, PhD
Glycogen and Resistance Training
he role of glycogen (stored carbohydrate in muscle) in aerobic exercise has been associated with increased work output and duration (Haff et al. 1999). Carbohydrate is the body's preferred substrate during endurance exercise, due to its efficient energy yield per liter of oxygen consumed. Previous re...
Knowing how to identify physical components important for sports performance--and understanding when and how to train those components--can make a trainer's services indispensable to athletic clients.
By John A. Blievernicht, MA
ore and more athletes are using personal fitness trainers to improve their proficiency in a variety of sports. Trainers with the ability to perform sports moves analy-...
There’s a long-standing debate about whether order matters when combining cardiovascular exercise and strength training in a single session. Is it best, for example, to hit the treadmill before or after heading to the weight room? Researchers from the University of Jyväskylä, in Finland, believe they have the answer.
Take your barre class to the next level by adding equipment and intervals, and bring new life to your tendus and passés! Students will gain postural and body awareness while increasing their strength and cardiovascular health. This class touches on all levels and is fantastic for cross-training.
newsletter_teaser: Take your barre class to the next level by adding equipment and intervals, and bring new life to your tendus and passés! Students will gain postural and body awareness while increasing their strength and cardiovascular health.
Aerial, circus and acrobatic arts have recently seen an explosion of interest, thanks in part to the popularity of performance companies like Cirque du Soleil®. Combine this curiosity with the fun and variety that an aerial-based workout provides, and it’s easy to see what makes this an exciting fitness genre.newsletter_teaser: Aerial, circus and acrobatic arts have recently seen an explosion of interest, thanks in part to the popularity of performance companies like Cirque du Soleil®.
Do plyometric exercises work for every client? Different trainers share their opinions.
Enhancing Sports and Everyday Lifenewsletter_teaser: “Jumping, bounding, hopping—plyometric movements like these are great to have in the toolbox, but like any powerful tool they must be used appropriately and with discretion,” says Janice Enloe.