Research article summary (published 29 Apr 2008):

An examination of training on the VertiMax resisted jumping device for improvements in lower body power in highly trained college athletes .

Full Abstract

Training to develop superior muscular power has become a key component to most progressive sport conditioning programs. Conventional resistance training, plyometrics, and speed/agility modalities have all been employed in an effort to realize superlative combinations of training stimuli. New training devices such as the VertiMax resisted jump trainer are marketed as a means of improving lower body reactive power. The purpose of this study was to evaluate the effectiveness of the VertiMax, in combination with traditional training modalities, for improvements in lower body power among highly trained athletes. Forty men and women Division I collegiate athletes representing the sports of baseball, basketball, soccer, gymnastics, and track completed a 12-week mixed-methods training program. Two groups were constructed with both groups performing the same conventional resistance training and strength training exercises. The training control group performed traditional plyometric exercises while the experimental group performed similar loaded jump training on the VertiMax. Lower body power was measured before and after the training program by the TENDO FiTROdyne Powerlizer and statistically compared for differences between groups. Data analyses identified a significant (p < 0.05) and meaningful difference between power development among the 2 groups, with the VertiMax eliciting a greater treatment effect (effect size = 0.54) over conventional resistance and plyometric training alone (effect size = 0.09). These data convincingly demonstrate that the VertiMax represents an effective strategy for developing lower body power among trained college athletes, when combined with traditional strength and conditioning approaches.

Author information

Author/s: Rhea, Matthew R (MR); Peterson, Mark D (MD); Oliverson, Jeff R (JR); Ayllón, Fernando Naclerio (FN); Potenziano, Ben J (BJ);

Affiliation: Department of Interdisciplinary Health Sciences, AT Still University, Mesa, Arizon, USA. mrhea(-atsign-)atsu.edu

Journal and publication information

Publication Type: Comparative Study; Journal Article

Journal: Journal of strength and conditioning research / National Strength & Conditioning Association (J Strength Cond Res), published in United States. (Language: eng)

Reference: 2008-May; vol 22 (issue 3) : pp 735-40

Dates: Created 2008/06/11; Completed 2008/08/07;

PMID: 18438246, status: MEDLINE (last retrieval date: 2/18/2009, IMS Date: )

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Adult Cohort Studies Equipment Design Exercise Test - instrumentation Female Humans Lower Extremity Male

Muscle Strength - physiology Physical Education and Training - methods Physical Endurance Probability Sensitivity and Specificity Sports - physiology Torque Weight-Bearing

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