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Title: Assessing rate of torque development using hand-held dynamometry after stroke: relationship with gait velocity.
Authors: Mentiplay, Benjamin
Williams, Gavin
Other Authors: Tan, D.
Adair, Brooke
Pua, Yong-Hao
Clark, Ross
Bower, Kelly
Keywords: Hand-Held Dynamometry
Rate of Torque Development
Gait Velocity
Muscle Strength
Isometric Muscle Power
Physical Function
Test-Retest Reliability
Measurement Reliability
Fast Paced 10m Walk Test
Lower-Limb Muscle Groups
Intraclass Correlation Coefficients
Spearman's Correlations
Partial F-Test
Dynamic Measures of Muscle Power
Rehabilitation, Mental Health and Chronic Pain Clinical Institute, Epworth HealthCare, Victoria, Australia
Physiotherapy Department, Epworth Healthcare, Melbourne, Australia
Issue Date: Jun-2017
Citation: Epworth Research Institute Research Week 2017; Poster 29: pp 53
Conference Name: Epworth Research Institute Research Week 2017
Conference Location: Epworth Research Institute, Victoria, Australia
Abstract: INTRODUCTION/BACKGROUND: Rate of torque development has shown promise to provide a stronger link with physical function compared to strength in a range of clinical populations. Current methods of assessment involve cumbersome and expensive equipment. The aim of this study was to examine the test-retest reliability of hand-held dynamometry for assessment of rate of torque development following stroke and compare the contribution of strength and rate of torque development to gait velocity. METHOD: Sixty-three adults following stroke (age: 60 years, 34 male) were recruited in this multi-site, multi-national study. Gait velocity was assessed with the fast paced 10m walk test. Assessment of strength and rate of torque development was performed for seven lower limb muscle groups of both limbs with hand-held dynamometry. Intraclass correlation coefficients were calculated for reliability, Spearman's correlations were used to examine associations and a partial F-test was used to compare strength and rate of torque development in the relationship with gait velocity. RESULTS: Good to excellent test-retest reliability was shown for the assessment of strength and rate of torque development across both lower limbs (ICCs - 0.28-0.97). Strong associations were found between strength and rate of torque development measures indicating potential redundancy (rho = 0.71-0.94). Despite the strong correlations between measures, rate of torque development failed to provide significant value over muscle strength, whereas, isometric strength of all muscle groups (except one muscle group) demonstrated stronger relationships with gait velocity compared to rate of torque development. CONCLUSION: Hand-held dynamometry is reliable for assessment of isometric strength and rate of torque development. The results suggest that muscle strength explains significantly higher amounts of variance in gait velocity following stroke compared with rate of torque development. Further research is needed to examine relationships between dynamic measures of muscle power and gait function.
Type: Conference Poster
Affiliated Organisations: Department of Physiotherapy, Singapore General Hospital, Singapore
School of Allied Health, Faculty of Health Sciences, Australian Catholic University, Melbourne, Australia
School of Physiotherapy, Faculty of Medicine, Denistry and Health Sciences, The University of Melbourne, Melbourne, Australia
Type of Clinical Study or Trial: Multicentre Studies
Appears in Collections:Musculoskeletal

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