A study on training effect on strength per unit cross-sectional area of muscle by means of ultrasonic measurement.
D000328:Adult; D001132:Arm; D006801:Humans; D008297:Male; D009119:Muscle Contraction; D009132:Muscles / Q000033:anatomy & histology*; D010806:Physical Education and Training; D005082:Physical Exertion; D014465:Ultrasonics