Journal article
Comparing passive angle–torque curves recorded simultaneously with a load cell versus an isokinetic dynamometer during dorsiflexion stretch tolerance assessments
Medical engineering & physics, Vol.37(5), pp.494-498
05/2015
DOI: 10.1016/j.medengphy.2015.02.010
PMID: 25782330
Abstract
•We compare passive angle–torque curves from a load cell apparatus and an isokinetic dynamometer.•The load cell identified more changes between joint angles than the isokinetic dynamometer.•Results suggest that a load cell is more sensitive than an isokinetic dynamometer.
The purpose of the present study was to compare the passive angle–torque curves and the passive stiffness (PS, N m °−1) values recorded simultaneously from a load cell versus an isokinetic dynamometer during dorsiflexion stretch tolerance assessments in vivo. Nine healthy men (mean ± SD age = 21.4 ± 1.6 years) completed stretch tolerance assessments on a custom-built apparatus where passive torque was measured simultaneously from an isokinetic dynamometer and a load cell. Passive torque values that corresponded with the last 10° of dorsiflexion, verified by surface electromyographic amplitude, were analyzed for each device (θ1, θ2, θ3, …, θ10). Passive torque values measured with the load cell were greater (p ≤ 0.05) than the dynamometer torque values for θ4 through θ10. There were more statistical differentiations among joint angles for passive torque measured by the load cell, and the load cell measured a greater (p ≤ 0.01) increase in passive torque and PS than the isokinetic dynamometer. These findings suggested that when examining the angle–torque curves from passive dorsiflexion stretch tolerance tests, a load cell placed under the distal end of the foot may be more sensitive than the torque recorded from an isokinetic dynamometer.
Details
- Title: Subtitle
- Comparing passive angle–torque curves recorded simultaneously with a load cell versus an isokinetic dynamometer during dorsiflexion stretch tolerance assessments
- Creators
- Samuel L Buckner - University of Nebraska–LincolnNathaniel D.M Jenkins - University of Nebraska–LincolnPablo B Costa - California State University, San BernardinoEric D Ryan - University of North Carolina at Chapel HillTrent J Herda - University of KansasJoel T Cramer - University of Nebraska–Lincoln
- Resource Type
- Journal article
- Publication Details
- Medical engineering & physics, Vol.37(5), pp.494-498
- DOI
- 10.1016/j.medengphy.2015.02.010
- PMID
- 25782330
- NLM abbreviation
- Med Eng Phys
- ISSN
- 1350-4533
- eISSN
- 1873-4030
- Publisher
- Elsevier Ltd
- Language
- English
- Date published
- 05/2015
- Academic Unit
- Center for Social Science Innovation; Injury Prevention Research Center; Health, Sport, and Human Physiology
- Record Identifier
- 9984259640702771
Metrics
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