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.

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