Factors affecting occlusion pressure and ischemic preconditioning

H. Brown; M.J. Binnie; B. Dawson; N. Bullock; B.R. Scott; P. Peeling

doi:10.1080/17461391.2017.1421712

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Factors affecting occlusion pressure and ischemic preconditioning

Journal article

Peer reviewed

Factors affecting occlusion pressure and ischemic preconditioning

H. Brown, M.J. Binnie, B. Dawson, N. Bullock, B.R. Scott and P. Peeling

European Journal of Sport Science, Vol.18(3), pp.387-396

2018

DOI: https://doi.org/10.1080/17461391.2017.1421712

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Abstract

Purpose: To determine the effect of limb selection (upper/lower), cuff width (small (6 cm)/medium (13 cm) upper; medium/large (18 cm) lower) and anthropometry on arterial occlusion pressure (AOP) in ischemic preconditioning (IPC). Methods: Twenty athletes (10 females and 10 males) had surface anthropometry and dual x-ray absorptiometry (DXA) assessments before using Doppler ultrasound to confirm AOP for each limb. Subsequently, 5 min of occlusion occurred, with near-infrared spectroscopy (NIRS) measuring muscle oxygenation changes. Resultant AOP was compared between sexes, limbs and cuff sizes using linear regression models. Results: Mean AOP was higher in the lower limbs than the upper limbs (161 ± 18 vs. 133 ± 12 mm Hg; p < .001), and with smaller cuffs in upper (161 ± 16 vs. 133 ± 12 mm Hg; p < .001), but not lower limbs (161 ± 16 vs. 170 ± 26 mm Hg; p = .222). Sex and resting systolic blood pressure (SBP) accounted for 77% (small cuff) to 83% (medium cuff) of variance in AOP for upper limbs, and 61% (medium cuff) to 63% (large cuff) in lower limbs. Including anthropometry accounted for 82% (small cuff) to 89% (medium cuff) and 78% (medium cuff) to 79% (large cuff) of variance for upper and lower limbs, respectively. Adding DXA variables improved the explained variance up to 83% (small cuff) to 91% (medium cuff) and 79% (medium cuff) to 87% (large cuff) for upper and lower limbs, respectively. NIRS data showed significantly greater tissue oxygenation changes in upper versus lower limbs. Conclusions: The AOP in athletes is dependent on limb occluded, sex, SBP, limb and cuff size, and body composition.

Details

Title: Factors affecting occlusion pressure and ischemic preconditioning
Authors/Creators: H. Brown (Author/Creator) - Western Australian Institute of Sport
M.J. Binnie (Author/Creator) - Western Australian Institute of Sport
B. Dawson (Author/Creator) - The University of Western Australia
N. Bullock (Author/Creator) - Australian Institute of Sport
B.R. Scott (Author/Creator) - Murdoch University
P. Peeling (Author/Creator) - Western Australian Institute of Sport
Publication Details: European Journal of Sport Science, Vol.18(3), pp.387-396
Publisher: Taylor & Francis
Identifiers: 991005542970207891
Copyright: © 2018 European College of Sport Science
Murdoch Affiliation: School of Psychology and Exercise Science
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration
Citation topics: 1 Clinical & Life Sciences; 1.71 Cardiology - Circulation; 1.71.403 Reperfusion
Web Of Science research areas: Sport Sciences
ESI research areas: Clinical Medicine