Sports Sciences Commons^™

Bodyweight Squat Movement Changes After A High-Intensity Short-Rest Workout, David R. Hooper

Master's Theses

High intensity (≥75%1RM), short rest (≤30 seconds) workouts (HISR) have increased in popularity in recent years despite very little scientific study as well as contradicting the American College of Sports Medicine (ACSM) position stand. The purpose of this study was to assess the changes in movement associated with the fatigue resulting from a HISR workout. 14 males underwent a 3 dimensional analysis of 5 bodyweight squats before and after a HISR workout. Peak angle, total displacement and rate were assessed for knee flexion, trunk flexion, hip flexion, hip rotation and hip adduction. Subjects were split in to two groups: high …

The Effect Of Betaine Supplementation On Performance And Muscle Mechanisms, Jenna M. Apicella

Master's Theses

Background: Recent research has shown that betaine supplementation can increase strength and power performance. To further investigate the ergogenic effects of betaine supplementation a balanced, randomized, double-blind, repeated measures crossover study was designed to examine select hormonal and muscle signaling responses during supplementation.

Methods: Twelve recreationally active men (age, 19.7 ± 1.23 years; height, 172.6 ± 5.61 cm; weight, 84.27 ± 15.3 kg; body fat, 18.7 ± 7.0%; BMI, 28.2 ± 4.0) with a minimum of 3 months of resistance training including back squat and bench press participated in the study. A within crossover design was utilized and subjects were …