Date of Award

January 2018

Document Type

Thesis

Degree Name

Master of Science (MS)

Department

Kinesiology & Public Health Education

First Advisor

John Fitzgerald

Abstract

This study aimed to examine the effectiveness of four warm-up protocols on explosive strength in a vertical jump performance in collegiate athletes. Fifty-two NCAA Division 1 athletes (aged 20.3 ± 1.53 years, range: 18-23 years, Height 183.83 cm. ± 11.49 cm., Weight 81.85 kg. ± 17.56 kg., BMI 24.18 ± 3.64) performed each of the four randomly ordered warm-up protocols prior to performing both the squat jump (SJ) and countermovement jump (CMJ) tests, with each warm-up and subsequent jump tests performed at the same time of day spaced 1-week apart. The four warm-up protocols were: (a) general aerobic (run/walk) (AERO); (b) AERO plus foam rolling (FR); (c) AERO plus dynamic stretching (DS); and (d) AERO plus foam rolling and dynamic stretching (FR+DS). Jump test measures included the primary outcome measure of jump height (JH), and secondary measures of peak force, average and peak rate of force development, and starting gradient. A repeated measures ANOVA with covariates of sport and class. Analysis of variance on jump height for both SJ and CMJ showed no significant differences (Partial Eta-sqaured: 0.008-0.01) among the four warm-up protocols (p≥0.05). There were main effects for the control variable of sport (F= 9.67, p = 0.01; F = 13.31, P = 0.01) but not class (P > 0.05). There was no interaction between control variables and protocols (P > 0.05). This study showed that the addition of foam rolling, dynamic stretching, or foam rolling + dynamic stretching to a general aerobic warm-up did not significantly affect vertical jump performance beyond that of a general aerobic warm-up. Sports coaches and trainers should consider these results when prescribing or programming exercise with athletes, especially in situations when training time is limited.

Available for download on Friday, June 12, 2020

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