Wrist Dynamometer
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General Information
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| Objectives |
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Precise measurement of isometric flexion and extension torques of the wrist joint.
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| Category of Outcome Measure |
Pathology
Impairment
Functional
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| Chronology of Development |
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No commercially avaible dynamometer allows the precise evaluation of flexion and extension torques generated around the wrist joint (the Biodex is able to perform these measurements but with a much lower precision (0.7 Nm) and with a protocol that does not seem adapted for the assessment of weak patients). First prototype in 1999, used in a gene therapy trial in DMD/BMD (Romero et al, 2004). Second generation of prototypes in 2005. Used at the moment in another gene therapy trial in gamma-sarcoglycanopathie (Haddad et al, 2007). Normative database under development on 450 healthy subjects from 5 to 80. Repeatability and reproducibility study on 120 healthy subjects ongoing (Hogrel, 2008). Also used in the natural history of patients suffering from a calpainopathy from 2007.
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| Time to Complete |
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10 min on average (for three trials, bilateral), depending on the protocol
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| Mode of Assessment |
Administered by trained evaluator
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| Age Group |
Children (2 to 11 Years)
Adolescents (12 to 15 Years)
Adults (16 Years and Over)
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| Age Related Limitations |
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Must be able to understand.
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| Languages |
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Original |
Definitive Validated Translation |
Informal Translation |
| English UK |
X |
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| French |
X |
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| Conditions of Use and Contact Information |
| Conditions of Use |
Free Access
Require Author's Written Permission
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| Organisation Name |
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Institut de Myologie (AIM)
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| Postal Address |
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GH Pitié-Salpêtrière, Bâtiment Babinski, 47/83 Bd de l'Hôpital, Paris Cedex 13, 75651, France (PH: 00 33 (0)1 42 16 58 58)
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Device
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| Description |
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The wrist dynamometer is built around a static torque sensor presenting a full scale (nominal torque) of 25 Nm, an accuracy of 0.05 Nm and a sensitivity of 0.0025 Nm.
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| Purpose/Use |
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The wrist device allows the measurement of the torque generated around the wrist joint during voluntary isometric contractions in the flexion/extension directions. Fatigue assessment during static contractions and timed tests are also possible with devoted softwares.
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| Organisation Name |
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Institut de Myologie (AIM)
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| Address |
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GH Pitié-Salpêtrière, Bâtiment Babinski, 47/83 Bd de l'Hôpital, Paris Cedex 13, 75651, France
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| Instruction Manual Availability |
An instruction manual is available
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Reference 1
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| Reference Details |
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Romero, NB.; Braun, S.; Benveniste, O.; et al; (2004) Phase I Study of Dystrophin Plasmid-Based Gene Therapy in Duchenne/Becker Muscular Dystrophy; Hum Gene Ther; Vol 15; pp 1065-1076
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Reference 2
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| Reference Details |
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Haddad, H.; Caizergues, D.; Rigolet, A.; et al; (2007) Phase I-IIa gene therapy protocol for LGMD 2C : Clinical strategy and implications; Proc 10th Annual Meeting of the American Society of Gene Therapy (ASGT)
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Reference 3
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| Reference Details |
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Hogrel, JY.; (2008) Assessment of flexion and extension torques of wrist and ankle using specific dynamometers; Proc Myology 2008
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Reference 4
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| Reference Details |
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Wrist dynamometer instructions of use; Institut de Myologie (AIM)
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