Title

Augmented feedback reduces ground reaction forces in the landing phase of the volleyball spike jump

Document Type

Journal Article

Publisher

Human Kinetics

Place of Publication

USA

Faculty

Computing, Health and Science

School

Exercise, Biomedical and Health Science

RAS ID

5989

Comments

This article was originally published as

Cronin, JB (2008). "Augmented feedback reduces ground reaction forces in the landing phase of the volleyball spike jump". Journal of sport rehabilitation (1056-6716), 17 (2), p. 148.

Original article available here

Abstract

Context: Frequency and magnitude of ground reaction forces (GRF) have been implicated in causing injuries such as "jumpers knee." Objective: To investigate whether a single session of augmented feedback concerning landing technique would decrease GRF. Design: Pretest posttest experimental design. Setting: University biomechanics laboratory. Participants: Fifteen female Division 1 intercollegiate volleyball players. Intervention: Participants were required to land on a force platform after spiking a volleyball from a four-step approach before and after an intervention involving visual and aural augmented feedback on correct jumping and landing technique. Main Outcome Measures: Mediolateral (ML), anterioposterior (AP), and vertical (V) GRF normalized to body weight (BW). Results: Augmented feedback was found to significantly (P = 0.01) decrease VGRF by 23.6% but not ML (25%, P = 0.16) and AP (4.9%, P = 0.40) peak GRF. Conclusions: A single session of augmented feedback may be effective in reducing VGRF in collegiate athletes.