Abstract:
BACKGROUND AND PURPOSE:The purpose of this study was to establish the relationship between isometric muscle force and temporal-spatial gait characteristics for individuals who have had a below-knee amputation secondary to vascular disease. SUBJECTS:Twenty-two individuals (15 male, 7 female) with dysvascular below-knee amputations participated. The male subjects were aged 35 to 72 years (x=59.6, SD=11.1), and the female subjects were aged 54 to 68 years (x=60.5, SD=5.1). Methods. The subjects underwent stride analysis during free-speed and fast walking, as well as bilateral isometric force testing of their remaining hip, knee, and ankle muscles. RESULTS:Stepwise regression analysis revealed that hip extensor force on the amputated side was the only predictor of both free speed (gamma=.50) and fast speed (gamma=.72). Hip abduction force of the sound++ limb was correlated with cadence for both free-speed trials (gamma=.57) and fast-speed trials (gamma=.57). Sound-side knee extensor force was related to free-speed stride length (gamma=.44), whereas residual-limb knee extensor force predicted stride length during fast walking (gamma=.67). CONCLUSION AND DISCUSSION:These results indicate that adequate force is necessary in both residual and sound limbs to improve functional gait ability and that ther hip extensors and abductors and the knee extensors should be emphasized in the rehabilitation of individuals with below-knee amputations.
journal_name
Phys Therjournal_title
Physical therapyauthors
Powers CM,Boyd LA,Fontaine CA,Perry Jdoi
10.1093/ptj/76.4.369subject
Has Abstractpub_date
1996-04-01 00:00:00pages
369-77; discussion 378-85issue
4eissn
0031-9023issn
1538-6724journal_volume
76pub_type
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