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Practical considerations for standardized recording of muscle mechanical properties using a myometric device: Recording site, muscle length, state of contraction and prior activity

Practical considerations for standardized recording of muscle mechanical properties using a myometric device: Recording site, muscle length, state of contraction and prior activity
Practical considerations for standardized recording of muscle mechanical properties using a myometric device: Recording site, muscle length, state of contraction and prior activity

Purpose: This study aimed to systematically examine the influence of various muscle and experimental conditions on Myoton recordings. Methods: A cross-sectional, observational design was used to examine muscle conditions and experimental factors (different recording sites, muscle length, level of contraction and prior physical activity) that may influence reproducibility of Myoton recordings for biceps brachii (BB) and rectus femoris (RF). Fifty-Three healthy adults (26 young, 27 older) aged 18-90 years were studied. Muscle stiffness, tone and elasticity were measured using the MyotonPRO device. Results: Statistically significant differences in Myoton parameters were found for aspects of all four muscle and experimental conditions compared with the control condition (p<0.05). However, clinically relevant differences in tone, stiffness and elasticity were only found for contracted compared to resting muscle, with changes being greater than the minimal detectable change. Elasticity was not affected by prior activity. Conclusions: The conditions studied significantly altered Myoton parameters of BB and RF in healthy adults, but only changes in parameters during muscle contraction were clinically relevant. These findings provide evidence to support the need to consider muscle condition and experimental factors for improving the robustness of test protocols for assessing muscle mechanical properties using the MyotonPRO device.

Experimental conditions, Muscle elasticity, Muscle stiffness, Muscle tone, Validity
1793-6497
Agyapong-Badu, Sandra
a48029a3-7908-47c3-84ff-0ad6898cbb1c
Warner, Martin
f4dce73d-fb87-4f71-a3f0-078123aa040c
Samuel, Dinesh
03b00738-9b9c-4c0a-a85a-cf43fc0932fc
Stokes, Maria
71730503-70ce-4e67-b7ea-a3e54579717f
Agyapong-Badu, Sandra
a48029a3-7908-47c3-84ff-0ad6898cbb1c
Warner, Martin
f4dce73d-fb87-4f71-a3f0-078123aa040c
Samuel, Dinesh
03b00738-9b9c-4c0a-a85a-cf43fc0932fc
Stokes, Maria
71730503-70ce-4e67-b7ea-a3e54579717f

Agyapong-Badu, Sandra, Warner, Martin, Samuel, Dinesh and Stokes, Maria (2018) Practical considerations for standardized recording of muscle mechanical properties using a myometric device: Recording site, muscle length, state of contraction and prior activity. Journal of Musculoskeletal Research, 21 (2). (doi:10.1142/S0218957718500100).

Record type: Article

Abstract

Purpose: This study aimed to systematically examine the influence of various muscle and experimental conditions on Myoton recordings. Methods: A cross-sectional, observational design was used to examine muscle conditions and experimental factors (different recording sites, muscle length, level of contraction and prior physical activity) that may influence reproducibility of Myoton recordings for biceps brachii (BB) and rectus femoris (RF). Fifty-Three healthy adults (26 young, 27 older) aged 18-90 years were studied. Muscle stiffness, tone and elasticity were measured using the MyotonPRO device. Results: Statistically significant differences in Myoton parameters were found for aspects of all four muscle and experimental conditions compared with the control condition (p<0.05). However, clinically relevant differences in tone, stiffness and elasticity were only found for contracted compared to resting muscle, with changes being greater than the minimal detectable change. Elasticity was not affected by prior activity. Conclusions: The conditions studied significantly altered Myoton parameters of BB and RF in healthy adults, but only changes in parameters during muscle contraction were clinically relevant. These findings provide evidence to support the need to consider muscle condition and experimental factors for improving the robustness of test protocols for assessing muscle mechanical properties using the MyotonPRO device.

Text
Practical considerations for standardised recording of muscle mechanical properties using a myometric device: recording site, muscle length, state of contraction and prior activity - Accepted Manuscript
Restricted to Repository staff only until 20 June 2019.
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More information

Accepted/In Press date: 13 November 2018
e-pub ahead of print date: 13 December 2018
Published date: 2018
Keywords: Experimental conditions, Muscle elasticity, Muscle stiffness, Muscle tone, Validity

Identifiers

Local EPrints ID: 421998
URI: https://eprints.soton.ac.uk/id/eprint/421998
ISSN: 1793-6497
PURE UUID: 233d71a7-314f-446a-8b7d-4bbaeeb2987f
ORCID for Martin Warner: ORCID iD orcid.org/0000-0002-1483-0561
ORCID for Maria Stokes: ORCID iD orcid.org/0000-0002-4204-0890

Catalogue record

Date deposited: 12 Jul 2018 16:30
Last modified: 14 Mar 2019 01:45

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