Medicine and Health Sciences Commons^™

The History And Evolution Of Stretching, Jennifer Roberts

Physical Therapy Scholarly Projects

Virtually every athlete engages in some form of stretching before beginning a training routine or competitive event. Stretching is an integral component of endless physical therapy treatment programs for muscle strains, ligament sprains, fibromyalgia protocols, and joint replacements to name a few. However, the physiological effect of stretching and the best method for producing the desired outcome is often questioned by coaches, athletes, and therapists.

The purpose of this paper is to examine the effects of static stretching and ballistic stretching individually and in conjunction with modalities. Muscle physiology, the benefits of flexibility, and the psychological and physiological effects of …

Delayed Onset Muscle Soreness, Bryan L. Guthmiller

Physical Therapy Scholarly Projects

Delayed-onset muscular soreness (DOMS), the sensation of pain and stiffness in the muscles that occurs from 1-5 days following unaccustomed exercise, can adversely affect muscle performance, both from voluntary reduction of effort and from inherent loss of capacity of the muscles to produce force. This exercise-induced muscle damage causes a response that can be characterized by a cascade of metabolic events. Increased circulating neutrophils and interleukin-1 occurs within 24 hours after the exercise, with skeletal muscle levels remaining elevated for a much longer time. Several theories underlying the physiological mechanisms of DOMS have been proposed. The majority of evidence contradicts …