Research and News
Posts tagged strength and conditioning
How to Fix a Bad Tennis Shoulder
Sep 13th
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Thera-Band® Academy research advisory committee (TRAC) member, Todd Ellenbecker DPT was recently featured in an article in the New York Times entitled, How to Fix a Bad Tennis Shoulder. In the article, he provides specific exercises using Thera-Band resistance. Todd serves as Director of Sports Medicine for the ATP tour, and is a clinical director and National research director for Physiotherapy Associates in Scottsdale, Arizona. For more exercises using elastic resistance from Todd, check out the book, Strength Band Training.
Why is force output decreased while sitting on an exercise ball? The core stability debate continues.
Jun 3rd
“Core Stability” has become a very popular term when discussing topics ranging from functional performance in athletes to rehabilitation for patients with low back pain. The exercise ball has long been used to promote core stability through specific exercises aimed at activating core muscles including the abdominals, low back, and pelvic stabilizers. The use of unstable surfaces such as a Thera-Band® exercise ball has been shown to increase muscle activity compared to a stable surface by providing additional challenge to postural stability. Researchers have shown, however, that exercises on an unstable surface reduce force output, suggesting that traditional resistance training exercises should not be performed on an unstable surface when the goal is to increase core activation. This lack of force output on unstable surfaces is thought to be related to a lack of core stability.
Researchers in New Zealand set out to determine if the loss in force output while performing an overhead press exercise on an exercise ball was related to core muscle endurance. They were interested in the ‘specificity vs. generality” of core stability; in other words, is core stability related to overall physical performance, or simply a measure of core muscle endurance?
30 resistance-trained, healthy young males participated in the study. More >
What to consider when combining elastic and traditional barbell exercises
May 20th
Strength and conditioning professionals have been adding elastic resistance bands to traditional squat and bench press exercises. It’s thought that adding elastic bands to these traditional barbell exercises will increase force output. Researchers at Loyola Marymount University in Los Angeles published a paper in the Journal of Strength and Conditioning Research that quantified the force production of thick elastic bands during elastic-augmented barbell exercises.
The researchers noted that the exact loading pattern provided by elastic bands needs to be quantified for programming optimal exercise variables. They were concerned with 3 variables: the thickness of the bands, the attachment of the band, and the exercise performed. The researchers attached different thicknesses of bands as they would be used during a bench press or squat. Four elastic band lengths were used for bench press compared to 2 lengths for the squat. Elastic force was determined as the bands were stretched 200 to 300%, and prediction equations were calculated. As expected, the bench press set-up (4 band length equivalents) produced about twice as much force and slope as the squat (2 band length equivalents).
It’s important for practitioners to know the volume of exercise during a combined free weight plus elastic band exercise. The authors suggest that More >
