The cardiorespiratory response and physiological determinants of the assisted 6-minute handbike cycle test in adult males with muscular dystrophy

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Morse, CI, Bostock, EL ORCID: https://orcid.org/0000-0001-9340-8459, Twiss, HM, Kapp, LH, Orme, P and Jacques, MF, 2018. The cardiorespiratory response and physiological determinants of the assisted 6-minute handbike cycle test in adult males with muscular dystrophy. Muscle & Nerve, 58 (3), pp. 427-433. ISSN 0148-639X

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Official URL: http://doi.org/10.1002/mus.26146

Abstract

Introduction: The assisted 6-minute cycle test (A6MCT) distance was assessed in adults with muscular dystrophy (MD).

Methods: Forty-eight males, including those with Duchenne MD (DMD), limb-girdle MD (LGMD), fascioscapulohumeral MD (FSHD), and Becker MD (BMD), as well as a group without MD (CTRL), completed handgrip strength (HGS), lung function [forced expiratory volume in 1 second (FEV1) and forced vital capacity (FVC)], body fat, and biceps thickness assessments. During the A6MCT, ventilation (VE), oxygen uptake (VO2), carbon dioxide (VCO2), and heart rate (HR) were recorded.

Results: A6MCT and HGS were lower in MD than CTRL subjects. FEV1, FVC, and biceps thickness were lower in MD than CTRL; lower in DMD than BMD, LGMD, and FSHD; but were not different between BMD, LGMD, and FSHD. A6MCT correlated with HGS, FEV1, FVC, body fat, VO2, VCO2, HR, and VE (r 5 0.455–0.708) in pooled BMD, LGMD, and FSHD participants.

Discussion: A shorter A6MCT distance in adult males with MD was attributable to HGS and lung function. The A6MCT is appropriate for assessment of physical function in adults with MD.

Item Type:	Journal article
Publication Title:	Muscle & Nerve
Creators:	Morse, C.I., Bostock, E.L., Twiss, H.M., Kapp, L.H., Orme, P. and Jacques, M.F.
Publisher:	Wiley Periodicals, Inc.
Date:	September 2018
Volume:	58
Number:	3
ISSN:	0148-639X
Identifiers:	Number Type 10.1002/mus.26146 DOI
Rights:	This is an open access article under the terms of the Creative CommonsAttribution-NonCommercial License, which permits use, distribution andreproduction in any medium, provided the original work is properly citedand is not used for commercial purposes.
Divisions:	Schools > School of Science and Technology
Record created by:	Jill Tomkinson
Date Added:	27 Feb 2019 16:00
Last Modified:	27 Feb 2019 16:00
URI:	https://irep.ntu.ac.uk/id/eprint/35837