Injury Prevention
Technique limitations can and do have major consequences for swimmers of all ages. At the same time, data obtained from video and force analyses can pinpoint the exact place in a stroke that is problematic or in need of adjustment.
The most common injuries are those caused by a combination of technique limitations, muscular imbalances, and excessive training distance. Every coach (and too many parents) can cite examples of swimmers that suffer from shoulder and knee problems. Most, if not all, of these injuries could be avoided by modifying technique, adding strength training, or adjusting training distance. For example, the swimmer in the image below has completed her arm entry in a position that is classically related to shoulder impingement syndrome. Internal rotation of the upper arm causes joint surface aggravation and produces injuries that range from discomfort to surgery.
The video shows an awkward arm position and the data shows that minimal force is generated in this position. An adjustment of the arm entry can minimize stress on the shoulder, generate more force at the beginning of the pull, and also increase stroke rate.