You are not logged in.

Validation of jump squats as a practical measure of post-activation potentiation

Nibali, Maria L., Chapman, Dale W., Robergs, Robert A. and Drinkwater, Eric J. 2013, Validation of jump squats as a practical measure of post-activation potentiation, Applied physiology, nutrition and metabolism, vol. 38, no. 3, pp. 306-313, doi: 10.1139/apnm-2012-0277.

Attached Files
Name Description MIMEType Size Downloads

Title Validation of jump squats as a practical measure of post-activation potentiation
Author(s) Nibali, Maria L.
Chapman, Dale W.
Robergs, Robert A.
Drinkwater, Eric J.ORCID iD for Drinkwater, Eric J. orcid.org/0000-0002-9594-9360
Journal name Applied physiology, nutrition and metabolism
Volume number 38
Issue number 3
Start page 306
End page 313
Total pages 8
Publisher NRC Research Press
Place of publication Ottawa, Ont.
Publication date 2013-03-11
ISSN 1715-5312
1715-5320
Keyword(s) countermovement jumps
electrical nerve stimulation
evoked muscle twitch
jump kinetics
lower-body power output
muscle potentiation
Summary To determine if post-activation potentiation (PAP) can augment sports performance, it is pertinent that researchers be confident that any enhancement in performance is attributable to the PAP phenomenon. However, obtaining mechanistic measures of PAP in the daily training environment of highly trained athletes is impractical. We sought to validate jump squats as a practical measure with ecological validity to sports performance against a mechanistic measure of PAP. We assessed the evoked muscle twitch properties of the knee extensors and jump squat kinetics of 8 physically trained males in response to a 5-repetition-maximum back squat conditioning stimulus (CS). Evoked muscle twitch, followed by 3 jump squats, was assessed before and at 4, 8, and 12 min post CS. Time intervals were assessed on separate occasions using a Latin square design. Linear regression was used to determine the relationship between post-pre changes in kinetic variables and muscle twitch peak force (Ft) and twitch rate of force development (RFDt). Large correlations were observed for both concentric relative and absolute mean power and Ft (r = 0.50 ± 0.30) and RFDt (r = 0.56 ± 0.27 and r = 0.58 ± 0.26). Concentric rate of force development (RFD) showed moderate correlations with Ft (r = 0.45 ± 0.33) and RFDt (r = 0.49 ± 0.32). Small-to-moderate correlations were observed for a number of kinetic variables (r = -0.42-0.43 ± 0.32-0.38). Jump squat concentric mean power and RFD are valid ecological measures of muscle potentiation, capable of detecting changes in athletic performance in response to the PAP phenomenon.
Language eng
DOI 10.1139/apnm-2012-0277
Field of Research 110699 Human Movement and Sports Science not elsewhere classified
Socio Economic Objective 929999 Health not elsewhere classified
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2013, NRC Research Press
Persistent URL http://hdl.handle.net/10536/DRO/DU:30083020

Document type: Journal Article
Collection: School of Exercise and Nutrition Sciences
Connect to link resolver
 
Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved.

Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 3 times in TR Web of Science
Scopus Citation Count Cited 2 times in Scopus
Google Scholar Search Google Scholar
Access Statistics: 88 Abstract Views, 1 File Downloads  -  Detailed Statistics
Created: Fri, 22 Apr 2016, 14:31:33 EST

Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.