Is hand-held dynamometry useful for the measurement of quadriceps strength in older people? A comparison with the gold standard Bodex dynamometry.
BACKGROUND: The lower limb muscle strength is an important determinant of physical function in older people. However, measurement in clinical and epidemiological settings has been limited because of the requirement for large-scale equipment. A protocol using a novel, versatile hand-held dynamometer...
| Main Authors: | , , , , , |
|---|---|
| Format: | Journal article |
| Language: | English |
| Published: |
2006
|
| _version_ | 1797066197367259136 |
|---|---|
| author | Martin, H Yule, V Syddall, H Dennison, E Cooper, C Aihie Sayer, A |
| author_facet | Martin, H Yule, V Syddall, H Dennison, E Cooper, C Aihie Sayer, A |
| author_sort | Martin, H |
| collection | OXFORD |
| description | BACKGROUND: The lower limb muscle strength is an important determinant of physical function in older people. However, measurement in clinical and epidemiological settings has been limited because of the requirement for large-scale equipment. A protocol using a novel, versatile hand-held dynamometer (HHD) has been developed to measure the quadriceps strength in a supine position. OBJECTIVE: The objective of this study was to assess the validity of this new methodology for measuring the lower limb muscle strength compared to the gold standard Biodex dynamometer. METHODS: The supine quadriceps strength was measured twice with each of the Biodex and the HHD in 20 men and women, aged 61-81 years, on their non-dominant leg. The agreement between the peak torques obtained by Biodex and HHD was analyzed. RESULTS: The mean peak Biodex and HHD results were 83.4 +/- (SD) 28.0 Nm and 68.9 +/- 19.6 Nm, respectively. The HHD undermeasured the quadriceps strength by an average of 14.5 Nm (95% CI 8.5, 20.6) compared to the Biodex, and this effect was most marked in the strongest participants. Nevertheless, there was a good correlation between the measures (r = 0.91, p < 0.0001). Classification of individuals into tertiles of muscle strength showed good agreement between the two methods (Kappa = 0.69, p < 0.0001). CONCLUSIONS: Our findings suggest that the HHD using a supine positioning offers a feasible, inexpensive, and portable test of quadriceps muscle strength for use in healthy older people. It underestimates the absolute quadriceps strength compared to the Biodex particularly in stronger people, but is a useful tool for ranking muscle strength of older people in epidemiological studies. It may also be of value for quick and objective assessment of physical function in the clinical setting. |
| first_indexed | 2024-03-06T21:38:58Z |
| format | Journal article |
| id | oxford-uuid:47403dbb-3971-49d2-92d9-0f5735ca26a8 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T21:38:58Z |
| publishDate | 2006 |
| record_format | dspace |
| spelling | oxford-uuid:47403dbb-3971-49d2-92d9-0f5735ca26a82022-03-26T15:18:57ZIs hand-held dynamometry useful for the measurement of quadriceps strength in older people? A comparison with the gold standard Bodex dynamometry.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:47403dbb-3971-49d2-92d9-0f5735ca26a8EnglishSymplectic Elements at Oxford2006Martin, HYule, VSyddall, HDennison, ECooper, CAihie Sayer, ABACKGROUND: The lower limb muscle strength is an important determinant of physical function in older people. However, measurement in clinical and epidemiological settings has been limited because of the requirement for large-scale equipment. A protocol using a novel, versatile hand-held dynamometer (HHD) has been developed to measure the quadriceps strength in a supine position. OBJECTIVE: The objective of this study was to assess the validity of this new methodology for measuring the lower limb muscle strength compared to the gold standard Biodex dynamometer. METHODS: The supine quadriceps strength was measured twice with each of the Biodex and the HHD in 20 men and women, aged 61-81 years, on their non-dominant leg. The agreement between the peak torques obtained by Biodex and HHD was analyzed. RESULTS: The mean peak Biodex and HHD results were 83.4 +/- (SD) 28.0 Nm and 68.9 +/- 19.6 Nm, respectively. The HHD undermeasured the quadriceps strength by an average of 14.5 Nm (95% CI 8.5, 20.6) compared to the Biodex, and this effect was most marked in the strongest participants. Nevertheless, there was a good correlation between the measures (r = 0.91, p < 0.0001). Classification of individuals into tertiles of muscle strength showed good agreement between the two methods (Kappa = 0.69, p < 0.0001). CONCLUSIONS: Our findings suggest that the HHD using a supine positioning offers a feasible, inexpensive, and portable test of quadriceps muscle strength for use in healthy older people. It underestimates the absolute quadriceps strength compared to the Biodex particularly in stronger people, but is a useful tool for ranking muscle strength of older people in epidemiological studies. It may also be of value for quick and objective assessment of physical function in the clinical setting. |
| spellingShingle | Martin, H Yule, V Syddall, H Dennison, E Cooper, C Aihie Sayer, A Is hand-held dynamometry useful for the measurement of quadriceps strength in older people? A comparison with the gold standard Bodex dynamometry. |
| title | Is hand-held dynamometry useful for the measurement of quadriceps strength in older people? A comparison with the gold standard Bodex dynamometry. |
| title_full | Is hand-held dynamometry useful for the measurement of quadriceps strength in older people? A comparison with the gold standard Bodex dynamometry. |
| title_fullStr | Is hand-held dynamometry useful for the measurement of quadriceps strength in older people? A comparison with the gold standard Bodex dynamometry. |
| title_full_unstemmed | Is hand-held dynamometry useful for the measurement of quadriceps strength in older people? A comparison with the gold standard Bodex dynamometry. |
| title_short | Is hand-held dynamometry useful for the measurement of quadriceps strength in older people? A comparison with the gold standard Bodex dynamometry. |
| title_sort | is hand held dynamometry useful for the measurement of quadriceps strength in older people a comparison with the gold standard bodex dynamometry |
| work_keys_str_mv | AT martinh ishandhelddynamometryusefulforthemeasurementofquadricepsstrengthinolderpeopleacomparisonwiththegoldstandardbodexdynamometry AT yulev ishandhelddynamometryusefulforthemeasurementofquadricepsstrengthinolderpeopleacomparisonwiththegoldstandardbodexdynamometry AT syddallh ishandhelddynamometryusefulforthemeasurementofquadricepsstrengthinolderpeopleacomparisonwiththegoldstandardbodexdynamometry AT dennisone ishandhelddynamometryusefulforthemeasurementofquadricepsstrengthinolderpeopleacomparisonwiththegoldstandardbodexdynamometry AT cooperc ishandhelddynamometryusefulforthemeasurementofquadricepsstrengthinolderpeopleacomparisonwiththegoldstandardbodexdynamometry AT aihiesayera ishandhelddynamometryusefulforthemeasurementofquadricepsstrengthinolderpeopleacomparisonwiththegoldstandardbodexdynamometry |