Psychophysiology. 2008 Mar;45(2):337-43. Epub 2007 Nov 7.

Effects of self-regulatory strength depletion on muscular performance and EMG activation.

Bray SR, Martin Ginis KA, Hicks AL, Woodgate J.

Source

Department of Kinesiology, McMaster University, Hamilton, Ontario, Canada.

Abstract

The purpose of the present study was to examine the effects of a self-regulatory strength depletion manipulation on performance of a physical endurance (isometric handgrip) task. In addition, the effect of depletion on EMG activity in the working forearm muscles during the endurance task was explored. Sedentary undergraduates (N=49) were randomly assigned to either a cognitive depletion condition (modified Stroop task) or a control (color word) group and completed two maximal isometric exercise endurance trials separated by the cognitive task. Participants in the depletion group showed significant (p<.05) degradations in performance and exhibited higher EMG activation on the second endurance trial (p<.05) compared to controls. Results are consistent with the limited strength model of self-regulation and are interpreted in light of the central fatigue hypothesis.

PMID:: 17995906; [PubMed - indexed for MEDLINE]

Publication Types, MeSH Terms

Publication Types

MeSH Terms

LinkOut - more resources

Full Text Sources

Supplemental Content

Related citations

Self-regulatory strength depletion and muscle-endurance performance: a test of the limited-strength model in older adults. [J Aging Phys Act. 2011]
Self-regulatory strength depletion and muscle-endurance performance: a test of the limited-strength model in older adults.
Bray SR, Martin Ginis KA, Woodgate J. J Aging Phys Act. 2011 Jul; 19(3):177-88.
Concurrent endurance and explosive type strength training increases activation and fast force production of leg extensor muscles in endurance athletes. [J Strength Cond Res. 2007]
Concurrent endurance and explosive type strength training increases activation and fast force production of leg extensor muscles in endurance athletes.
Mikkola JS, Rusko HK, Nummela AT, Paavolainen LM, Häkkinen K. J Strength Cond Res. 2007 May; 21(2):613-20.
Sex differences in time to task failure and blood flow for an intermittent isometric fatiguing contraction. [Muscle Nerve. 2009]
Sex differences in time to task failure and blood flow for an intermittent isometric fatiguing contraction.
Hunter SK, Griffith EE, Schlachter KM, Kufahl TD. Muscle Nerve. 2009 Jan; 39(1):42-53.
Review The physiology of rock climbing. [Sports Med. 2006]
Review The physiology of rock climbing.
Giles LV, Rhodes EC, Taunton JE. Sports Med. 2006; 36(6):529-45.
Review Hydration and muscular performance: does fluid balance affect strength, power and high-intensity endurance? [Sports Med. 2007]
Review Hydration and muscular performance: does fluid balance affect strength, power and high-intensity endurance?
Judelson DA, Maresh CM, Anderson JM, Armstrong LE, Casa DJ, Kraemer WJ, Volek JS. Sports Med. 2007; 37(10):907-21.

See reviews... See all...

Cited by 1 PubMed Central article

Building Self-Control Strength: Practicing Self-Control Leads to Improved Self-Control Performance. [J Exp Soc Psychol. 2010]
Building Self-Control Strength: Practicing Self-Control Leads to Improved Self-Control Performance.
Muraven M. J Exp Soc Psychol. 2010 Mar 1; 46(2):465-468.

Related information

Related Citations
Calculated set of PubMed citations closely related to the selected article(s) retrieved using a word weight algorithm. Related articles are displayed in ranked order from most to least relevant, with the “linked from” citation displayed first.
Cited in PMC
Full-text articles in the PubMed Central Database that cite the current articles.

Recent activity

Clear Turn Off Turn On

Effects of self-regulatory strength depletion on muscular performance and EMG ac...
Effects of self-regulatory strength depletion on muscular performance and EMG activation.
Psychophysiology. 2008 Mar ;45(2):337-43. Epub 2007 Nov 7 .

PubMed
Prosocial benefits of feeling free: disbelief in free will increases aggression ...
Prosocial benefits of feeling free: disbelief in free will increases aggression and reduces helpfulness.
Pers Soc Psychol Bull. 2009 Feb ;35(2):260-8.

PubMed
Addiction and free will.
Addiction and free will.
Addict Res Theory. 2009 Jun 3;17(3):231-235.

PubMed
Application of the limited strength model of self-regulation to understanding ex...
Application of the limited strength model of self-regulation to understanding exercise effort, planning and adherence.
Psychol Health. 2010 Dec ;25(10):1147-60.

PubMed
Self-regulatory strength depletion and muscle-endurance performance: a test of t...
Self-regulatory strength depletion and muscle-endurance performance: a test of the limited-strength model in older adults.
J Aging Phys Act. 2011 Jul ;19(3):177-88.

PubMed

Your browsing activity is empty.

Activity recording is turned off.

Turn recording back on

PubMed

Display Settings:

Send to:

Effects of self-regulatory strength depletion on muscular performance and EMG activation.

Source

Abstract

Publication Types, MeSH Terms

Publication Types

MeSH Terms

LinkOut - more resources

Full Text Sources

Supplemental Content

Related citations

Cited by 1 PubMed Central article

Related information

Recent activity

Simple NCBI Directory

Getting Started

Resources

Popular

Featured

NCBI Information