Muscle oxygenation during hybrid arm and functional electrical stimulation–evoked leg cycling after spinal cord injury

Hasnan, Nazirah and Saadon, Nurul Salwani Mohamad and Hamzaid, Nur Azah and Teoh, Mira Xiao Hui and Ahmadi, Sirous and Davis, Glen Macartney (2018) Muscle oxygenation during hybrid arm and functional electrical stimulation–evoked leg cycling after spinal cord injury. Medicine, 97 (43). e12922. ISSN 0025-7974

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Official URL: https://doi.org/10.1097/MD.0000000000012922

Abstract

This study compared muscle oxygenation (StO 2 ) during arm cranking (ACE), functional electrical stimulation-evoked leg cycling (FES-LCE), and hybrid (ACE+FES-LCE) exercise in spinal cord injury individuals. Eight subjects with C7-T12 lesions performed exercises at 3 submaximal intensities. StO 2 was measured during rest and exercise at 40%, 60%, and 80% of subjects' oxygen uptake (VO 2 ) peak using near-infrared spectroscopy. StO 2 of ACE showed a decrease whereas in ACE+FES-LCE, the arm muscles demonstrated increasing StO 2 from rest in all of VO 2 ) peak respectively. StO 2 of FES-LCE displayed a decrease at 40% VO 2 peak and steady increase for 60% and 80%, whereas ACE+FES-LCE revealed a steady increase from rest at all VO 2 peak. ACE+FES-LCE elicited greater StO 2 in both limbs which suggested that during this exercise, upper- and lower-limb muscles have higher blood flow and improved oxygenation compared to ACE or FES-LCE performed alone.

Item Type: Article
Uncontrolled Keywords: Arm exercise; Leg exercise; Near-infrared spectroscopy; Neuromuscular electrical stimulation; Paraplegia; Tetraplegia
Subjects: R Medicine
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 08 Aug 2019 07:21
Last Modified: 08 Aug 2019 07:21
URI: http://eprints.um.edu.my/id/eprint/21915

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