RELIABILITY AND VALIDITY OF A BIOMECHANICALLY BASED ANALYSIS METHOD FOR THE TENNIS SERVE.

Background: An observational tennis serve analysis (OTSA) tool was developed using previously established body positions from three-dimensional kinematic motion analysis studies. These positions, defined as nodes, have been associated with efficient force production and minimal joint loading. However, the tool has yet to be examined scientifically.

Baseline values of trunk endurance and hip strength in collegiate athletes.

Context: Injuries involving the lumbar spine and lower extremities in athletes are among the most disabling. Lack of trunk and hip strength may predispose athletes to such injuries.

Objective: To measure trunk endurance and hip strength in a population of National Collegiate Athletic Association Division III athletes.

The effect of pilates exercise on trunk and postural stability and throwing velocity in college baseball pitchers: single subject design.

Background: Baseball pitchers need trunk strength to maximize performance. The Pilates method of exercise is gaining popularity throughout the country as a fitness and rehabilitation method of exercise. However, very few studies exist that examine the effects of the Pilates method of exercise on trunk strength or performance.