Electromyographic and Girth Considerations Relative to Strength Training

Abstract

19 male and 23 female volunteers were tested for surface electromyograms. Girth and skinfold measures were taken at the same location, while cable tensiometer readings indicated quadriceps strength. After a 7-wk. strength improvement program, measures were repeated. Both men and women increased their quadriceps strength. The men's thigh girth significantly increased, whereas the women's did not. Both groups demonstrated significant electromyogram change for a 16-lb. load, whereas only the men showed significant change for a 26-lb. load.