A Case Study of Muscular Strength, Endurance and Power Responses to a 6-Week High Intensity Training Program

Abstract

We evaluated the muscular strength, endurance, and power responses of 12 college students, ranging in age from 19-40 years, who participated in a 6-wk high-intensity training program commonly used to improve muscular endurance. Muscular strength was measured by a one repetition maximum ( lRM) bench press test and a lRM Hammer bench press test; muscular endurance was measured by administering a 70-percent lRM test to failure on the Hammer bench press; and upper body power was measured by administering a medicine ball throw test. We observed a 4.8-percent improvement of 2.7 kg on the bench press, a 14.6-percent improvement of 10.5 kg on the Hammer bench press, a 45.5-percent improvement with an average increase of five repetitions on the submaximal test to failure and an average improvement of~ 20 percent, 60 cm, for the medicine ball throw. For our subjects, a commonly used high-intensity training muscular endurance program resulted in improved performance on tests measuring muscular strength, endurance, and power, and resulted in zero reported injuries during training or assessment procedures.