Document Detail

Kinematic and electromyographic analysis of elbow flexion during inertial exercise.
MedLine Citation:
PMID:  16558345     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Inertial exercise protocols are currently used clinically to improve and restore normal muscle function even though research to substantiate their effectiveness cannot be cited in the literature. The purpose of this study was to compare simultaneous kinematic and electromyographic (EMG) data obtained from 12 subjects during elbow flexion on the Impulse Inertial Exercise System. Testing sessions consisted of inertial exercise performed using phasic and tonic techniques with loads of: a) 0 kg, b) 2.27 kg, c) 4.54 kg, d) 6.80 kg, e) 9.07 kg. Greater peak angular velocities, peak platform accelerations (change in velocity of platform during elbow flexion), mean and peak triceps brachii muscle EMG activity, and less range of motion were observed during phasic exercise. There was also a general trend for peak angular velocities and peak platform acceleration to increase as the load decreased. No significant difference in mean or peak EMG activity of the biceps brachii muscle was seen between techniques. Clinicians and athletic trainers using inertial exercise should consider both the exercise technique and load characteristics when designing protocols to meet the specific needs of patients.
J E Tracy; S Obuchi; B Johnson
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of athletic training     Volume:  30     ISSN:  1062-6050     ISO Abbreviation:  J Athl Train     Publication Date:  1995 Sep 
Date Detail:
Created Date:  2010-06-29     Completed Date:  2010-06-29     Revised Date:  2010-09-15    
Medline Journal Info:
Nlm Unique ID:  9301647     Medline TA:  J Athl Train     Country:  United States    
Other Details:
Languages:  eng     Pagination:  254-8     Citation Subset:  -    
James E. Tracy is Clinical Assistant Professor of Physical Therapy at East Carolina University, Greenville, NC 27858-4353.
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