Document Detail


Lower limb strength in sports-active transtibial amputees.
MedLine Citation:
PMID:  19658013     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The aim of this study was to compare hip strength in sports-active transtibial (TT) amputees, sedentary TT amputees and sports-active non-amputees. Three 'active' (exercising recreationally at least three times per week) TT amputees, four 'inactive' or sedentary TT amputees and nine 'active' able-bodied persons (AB) underwent concentric and eccentric hip flexion and extension strength testing on both limbs on an isokinetic dynamometer at 60 and 120 degrees /s. Little strength asymmetry was noted between the limbs of the active TT amputees (8% and 14% at 60 and 120 degrees /s, respectively), their residual limb being slightly stronger. Inactive TT amputees demonstrated up to 49% strength asymmetry, their intact limb being the stronger. Active TT amputees demonstrated greater peak hip torques (Nm/kg) for all conditions and speeds compared to inactive TT amputees. Peak hip torques (Nm/kg), were greater in the active TT amputees' residual limb compared to AB. While inactive TT amputees and AB had similar flexion/extension ratios, active TT amputees exhibited a lower ratio indicating overdeveloped hip extensors with respect to their hip flexors. It is not known whether this is due to the demands of sport or exercise with a prosthetic limb, or remaining residual thigh atrophy.
Authors:
Lee Nolan
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Prosthetics and orthotics international     Volume:  33     ISSN:  1746-1553     ISO Abbreviation:  Prosthet Orthot Int     Publication Date:  2009 Sep 
Date Detail:
Created Date:  2009-08-06     Completed Date:  2009-10-30     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7707720     Medline TA:  Prosthet Orthot Int     Country:  England    
Other Details:
Languages:  eng     Pagination:  230-41     Citation Subset:  IM    
Affiliation:
Karolinska Institute and GIH, Biomechanics and Motor Control, Stockholm, Sweden. lee.nolan@gih.se
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MeSH Terms
Descriptor/Qualifier:
Adult
Amputees* / rehabilitation
Artificial Limbs*
Biomechanics
Female
Hip Joint / physiology
Humans
Lower Extremity / physiology*
Male
Middle Aged
Motor Activity / physiology*
Muscle Contraction / physiology
Muscle Strength / physiology*
Muscle Strength Dynamometer
Range of Motion, Articular / physiology
Sports*
Tibia / surgery*
Torque

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


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