This study examined the progressive effects of performing a fatiguing task on the static strength of two muscle groups involved in the performance of the task. (Author/JA)

This study investigated the effects of 30 minutes of endurance jogging on pulse rates at rest, during exercise, and at recovery and eight skinfold fat measures in middle-aged women. Subjects were 15 middle-aged women between 30 and 58 years of age who had not been engaged in any exercise program at least for 1 year. Eight sedentary subjects were…

Greater control of the muscular fatigue process is afforded by regulation of energy expenditure through monitoring the rate of contraction rather than by varying the duration of contraction. (Author)

The purpose of this study was to determine if there was any significant difference in overall leg strength gains in individuals with sickle-cell-trait as compared to non-sickle-cell-trait individuals, as measured by the leg dynamometer. Twenty black male first-year college students were used in this study. The subjects were divided into a control…

The muscle action potentials (MAP) of the anterior deltoid, pectoralis major, biceps brachii, and the triceps muscle were studied by quantitative electromyography (emg) during a bench press exercise at three controlled speeds. Bipolar surface electrodes with standard placement were employed throughout the study. Eleven volunteer college women…

The interpretation of the data from this study can support the concept of accomodation for isokinetic exercise. (RC)

During a rhythmic, all-out task, the rates of fatigue experienced by elbow flexor and knee extendor muscle groups tend to differ, with the elbow flexors fatiguing more rapidly initially, but reaching a plateau at a relatively higher level than the knee extensors. (Author)

This article discusses the beneficial aspects of isokinetics--resistive exercise that varies according to the individual's skeletal leverage. (JS)

Analysis of the human and mechanical factors inherent in ergometry suggest many strategies for the improvement of experiments related to exertion. The resistive principles of gravitation, friction, elasticity, viscosity, magnetism, and inertia used in ergometers impose different restraints on experiments. The suitability of different resistive…

This booklet is divided into seven sections that include the following topics: (a) physical performance, (b) adaptation to inactivity and activity, (c) physiological and medical motives for regular physical activity, (d) training, (e) physical fitness for everyday life, and (f) testing physical fitness and condition. Section one discusses energy…