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The Efficacy of Exercise Training for Cutaneous Microvascular Reactivity in the Foot in People with Diabetes and Obesity: Secondary Analyses from a Randomized Controlled Trial

journal contribution
posted on 2023-02-10, 01:50 authored by S Lanting, Kim WayKim Way, A Sabag, R Sultana, J Gerofi, N Johnson, M Baker, S Keating, I Caterson, S Twigg, V Chuter
It is unclear if cutaneous microvascular dysfunction associated with diabetes and obesity can be ameliorated with exercise. We investigated the effect of 12-weeks of exercise training on cutaneous microvascular reactivity in the foot. Thirty-three inactive adults with type 2 diabetes and obesity (55% male, 56.1 ± 7.9 years, BMI: 35.8 ± 5, diabetes duration: 7.9 ± 6.3 years) were randomly allocated to 12-weeks of either (i) moderate-intensity continuous training [50–60% peak oxygen consumption (VO2peak), 30–45 min, 3 d/week], (ii) low-volume high-intensity interval training (90% VO2peak, 1–4 min, 3 d/week) or (iii) sham exercise placebo. Post-occlusive reactive hyperaemia at the hallux was determined by laser-Doppler fluxmetry. Though time to peak flux post-occlusion almost halved following moderate intensity exercise, no outcome measure reached statistical significance (p > 0.05). These secondary findings from a randomised controlled trial are the first data reporting the effect of exercise interventions on cutaneous microvascular reactivity in the foot in people with diabetes. A period of 12 weeks of moderate-intensity or low-volume high-intensity exercise may not be enough to elicit functional improvements in foot microvascular reactivity in adults with type 2 diabetes and obesity. Larger, sufficiently powered, prospective studies are necessary to determine if additional weight loss and/or higher exercise volume is required.

History

Journal

Journal of Clinical Medicine

Volume

11

Article number

ARTN 5018

Location

Switzerland

ISSN

2077-0383

eISSN

2077-0383

Language

English

Publication classification

C1 Refereed article in a scholarly journal

Issue

17

Publisher

MDPI