Abstract
This is a study to observe the muscle contraction dynamics and morphological changes using ultrasound-imaging system by applying a product called BOLT TAPE that heats the applied area and relieves pain. As a result it has been proven that BOLT TAPE not only improves the muscle contraction dynamics but also influences the structure of pinnate muscle. We have a good reason to believe that this kind of non-chemical sports tape, which has never been available, can be used in wide range of sports and medical field.
