TY - JOUR
T1 - Quantitative measurements of hip strength in different age groups
AU - Cahalan, T. D.
AU - Johnson, M. E.
AU - Liu, S.
AU - Chao, E. Y S
N1 - Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 1989
Y1 - 1989
N2 - The purpose of this study was to develop a clinically useful method of assessing the strength of the hip musculature and to develop a normal data base with this technique. The strength of 72 subjects aged 20-81 years (37 women and 35 men) was measured through the use of a modified Cybex II with an upright stabilization frame for testing saggittal and frontal plane motions; transverse plane motions of internal and external rotation were tested in the seated position. The subjects were tested at multiple isokinetic speeds and isometric angles. Regardless of age or gender, hip extensors were the strongest muscle group, following by flexors, adductors, abductors, and rotators. As the velocity of exercise increased, the magnitude of the torques produced decreased. Demographically, younger men produced the greatest torques and older women the lowest. The strength values of older men and younger women were similar. The results have clinical implications for objective assessment of strength in pathologic patient populations.
AB - The purpose of this study was to develop a clinically useful method of assessing the strength of the hip musculature and to develop a normal data base with this technique. The strength of 72 subjects aged 20-81 years (37 women and 35 men) was measured through the use of a modified Cybex II with an upright stabilization frame for testing saggittal and frontal plane motions; transverse plane motions of internal and external rotation were tested in the seated position. The subjects were tested at multiple isokinetic speeds and isometric angles. Regardless of age or gender, hip extensors were the strongest muscle group, following by flexors, adductors, abductors, and rotators. As the velocity of exercise increased, the magnitude of the torques produced decreased. Demographically, younger men produced the greatest torques and older women the lowest. The strength values of older men and younger women were similar. The results have clinical implications for objective assessment of strength in pathologic patient populations.
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U2 - 10.1097/00003086-198909000-00022
DO - 10.1097/00003086-198909000-00022
M3 - Article
C2 - 2766602
AN - SCOPUS:0024417857
SP - 136
EP - 145
JO - Clinical Orthopaedics and Related Research
JF - Clinical Orthopaedics and Related Research
SN - 0009-921X
IS - 246
ER -