Document Detail


RPE angle effects in young and middle-aged adults.
MedLine Citation:
PMID:  20148369     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The purpose of this study was to examine contraction intensity and arm abduction angle effects on perceived exertion between healthy young (n=14) and middle-aged (n=13) adults. Subjects participated in three separate experimental sessions during which, maximal (MVC) and sub-maximal (10-90% MVC, 10% increments, random order) arm abduction contractions were performed at one of the following randomly assigned angles: 30, 60 and 90 degrees Perceived exertion was sampled with a modified Borg category-ratio scale following each sub-maximal contraction. Voluntary arm abduction torque was significantly (p<0.05) greatest at 30 degrees , as compared to 60 degrees and 90 degrees , while no significant differences were observed between the young and middle-aged adults. Perceived exertion was significantly (p<0.05) greatest at 90 degrees abduction, as compared to 30 degrees and 60 degrees , and was not different between the two age groups. Power function modeling revealed that perceived exertion was significantly (p<0.05) fit to negatively accelerating non-linear trends for the middle-aged adults at all arm angles and at 90 degrees for the young adults. The findings demonstrated greater ratings of perceived exertion at elevated arm positions, while middle-aged adults displayed a non-linear contraction intensity dependency at the lower arm elevation angles.
Authors:
D M Pincivero; M K Timmons; D Elsing
Related Documents :
17116999 - Superimposed electrical stimulation: assessment of voluntary activation and perceived d...
8554479 - Lumbar trunk muscle endurance testing: an inexpensive alternative to a machine for eval...
10077789 - Normal shoulder proprioception and the effect of lidocaine injection.
8056179 - In vitro aging of a heat/pressure-cured composite.
18247239 - Leg stiffness and electromyography of knee extensors/flexors: comparison between older ...
9177589 - Life-long endurance-trained elderly men have high aerobic power, but have similar muscl...
22251789 - Commercial sex worker use among male chinese rural-urban migrants.
15383309 - From cells to ageing: a review of models and mechanisms of cellular senescence and thei...
9276099 - Effect of hearing impairment on educational outcomes and employment up to the age of 25...
Publication Detail:
Type:  Comparative Study; Journal Article     Date:  2010-02-10
Journal Detail:
Title:  International journal of sports medicine     Volume:  31     ISSN:  1439-3964     ISO Abbreviation:  Int J Sports Med     Publication Date:  2010 Apr 
Date Detail:
Created Date:  2010-04-26     Completed Date:  2010-08-24     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8008349     Medline TA:  Int J Sports Med     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  257-60     Citation Subset:  IM    
Copyright Information:
Copyright Georg Thieme Verlag KG Stuttgart . New York.
Affiliation:
Wilfrid Laurier University, Kinesiology & Physical Education, Waterloo, Canada. dpincivero@wlu.ca
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Age Factors
Aged
Aging / physiology*
Analysis of Variance
Arm / physiology*
Biomechanics
Exercise Tolerance / physiology
Female
Humans
Isometric Contraction / physiology*
Male
Middle Aged
Muscle, Skeletal / physiology*
Perception
Physical Exertion / physiology*
Posture
Shoulder / physiology*
Statistics as Topic
Torque
Young Adult

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Combined oral anticoagulants and antiplatelets: benefits and risks.
Next Document:  Speed Trends of Major Cycling Races: Does Slower Mean Cleaner?