Mood alterations with a single bout of physical activity.

Although numerous studies have examined the relationship among affect, personality, and physical activity, results are equivocal. Critics have cited inadequate experimental designs and analyses as the bases for ambiguity. This study addressed two identified weaknesses, length of exercise regimen and improper selection of subjects. Subjects were 72 college-age students who participated in one of three 75-min. activity classes (running, karate, weight lifting) and a lecture class (control subjects). The Profile of Mood States Test was administered prior to and immediately after exercise bouts. Analyses of variance and multiple t tests indicated that participating in a single bout of exercise significantly reduced reported total mood disturbance, tension, depression, anger, and confusion.