Abstract
Theenergy expenditure per unit distance, or cost of gait, depends on the efficiency of the locomotory mechanism, which is a function of speed. We compared the cost of gait at corresponding speeds between pathologic (hemiplegic, above-knee amputee, paraplegic) and normal subjects respectively, using a polynomial regression on data available from the literature. In all pathologies the cost-speed function showed a minimum at a speed which may be defined as optimum, as in normal gait. Within the speed range possible for the patients, the cost-speed functions were significantly different from the normal one in the above-knee amputee and in the paraplegic, but not in the hemiplegic. In the amputee, the minimum cost was increased by 38% with respect to that of the normal at a corresponding speed. In contrast, the minimum cost was increased by only 11 % in the paraplegic, despite the much more severe impairment.
| Original language | English |
|---|---|
| Pages (from-to) | 47-50 |
| Number of pages | 4 |
| Journal | Clinical Biomechanics |
| Volume | 6 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1991 |
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Keywords
- amputation
- efficiency
- energy expenditure
- hemiplegia
- paraplegia
- Pathologic gait
ASJC Scopus subject areas
- Orthopedics and Sports Medicine
Cite this
Pathological gaits : inefficiency is not a rule. / Tesio, L.; Roi, G. S.; Möller, F.
In: Clinical Biomechanics, Vol. 6, No. 1, 1991, p. 47-50.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Pathological gaits
T2 - inefficiency is not a rule
AU - Tesio, L.
AU - Roi, G. S.
AU - Möller, F.
PY - 1991
Y1 - 1991
N2 - Theenergy expenditure per unit distance, or cost of gait, depends on the efficiency of the locomotory mechanism, which is a function of speed. We compared the cost of gait at corresponding speeds between pathologic (hemiplegic, above-knee amputee, paraplegic) and normal subjects respectively, using a polynomial regression on data available from the literature. In all pathologies the cost-speed function showed a minimum at a speed which may be defined as optimum, as in normal gait. Within the speed range possible for the patients, the cost-speed functions were significantly different from the normal one in the above-knee amputee and in the paraplegic, but not in the hemiplegic. In the amputee, the minimum cost was increased by 38% with respect to that of the normal at a corresponding speed. In contrast, the minimum cost was increased by only 11 % in the paraplegic, despite the much more severe impairment.
AB - Theenergy expenditure per unit distance, or cost of gait, depends on the efficiency of the locomotory mechanism, which is a function of speed. We compared the cost of gait at corresponding speeds between pathologic (hemiplegic, above-knee amputee, paraplegic) and normal subjects respectively, using a polynomial regression on data available from the literature. In all pathologies the cost-speed function showed a minimum at a speed which may be defined as optimum, as in normal gait. Within the speed range possible for the patients, the cost-speed functions were significantly different from the normal one in the above-knee amputee and in the paraplegic, but not in the hemiplegic. In the amputee, the minimum cost was increased by 38% with respect to that of the normal at a corresponding speed. In contrast, the minimum cost was increased by only 11 % in the paraplegic, despite the much more severe impairment.
KW - amputation
KW - efficiency
KW - energy expenditure
KW - hemiplegia
KW - paraplegia
KW - Pathologic gait
UR - http://www.scopus.com/inward/record.url?scp=0026111228&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0026111228&partnerID=8YFLogxK
U2 - 10.1016/0268-0033(91)90041-N
DO - 10.1016/0268-0033(91)90041-N
M3 - Article
C2 - 23916344
AN - SCOPUS:0026111228
VL - 6
SP - 47
EP - 50
JO - Clinical Biomechanics
JF - Clinical Biomechanics
SN - 0268-0033
IS - 1
ER -