Limb occlusion pressure for blood flow restricted exercise: Variability and relations with participant characteristics.

Autor: Evin HA; Sanford Orthopedics and Sports Medicine, Sanford Health, Fargo, ND, USA., Mahoney SJ; Sanford Orthopedics and Sports Medicine, Sanford Health, Fargo, ND, USA., Wagner M; Sanford Orthopedics and Sports Medicine, Sanford Health, Fargo, ND, USA., Bond CW; Sanford Orthopedics and Sports Medicine, Sanford Health, Fargo, ND, USA. Electronic address: colin.bond@sanfordhealth.org., MacFadden LN; Sanford Orthopedics and Sports Medicine, Sanford Health, Fargo, ND, USA., Noonan BC; Sanford Orthopedics and Sports Medicine, Sanford Health, Fargo, ND, USA.
Jazyk: angličtina
Zdroj: Physical therapy in sport : official journal of the Association of Chartered Physiotherapists in Sports Medicine [Phys Ther Sport] 2021 Jan; Vol. 47, pp. 78-84. Date of Electronic Publication: 2020 Nov 10.
DOI: 10.1016/j.ptsp.2020.11.026
Abstrakt: Objective: Assess lower-extremity blood flow restricted exercise (BFR) limb occlusion pressure (LOP) variability and identify related intrinsic characteristics using a portable Delphi BFR system.
Design: Repeated measures.
Setting: Laboratory.
Participants: Forty-two healthy males (n = 25) and females (n = 17) (25.8 ± 5.2 y, 1.76 ±0 .09 m, 78.9 ± 14.9 kg) completed two visits. Brachial artery blood pressure, thigh circumferences (TC), and LOP were measured supine.
Main Outcome Measures: Linear mixed-effects models (LMM) and generalizability theory were used to evaluate LOP between legs and days, determine intrinsic characteristic relations, and assess random variance components.
Results: LOP was not different between legs (p = .730) or days (p = .916; grand mean = 183.7 mmHg [178.4, 189.1]). LOP varied significantly between participants (p = .011, standard error = 47.3 mmHg). 47% of LOP variance was between participants, 18% and 6% was within participants between days and legs, respectively, and 28% was associated with random error. The relative error variance was 14.4 mmHg. Pulse pressure (PP) (p = .005) and TC (p = .040) were positively associated with LOP. A LMM including PP and TC predicted LOP with a mean absolute difference of 11.1 mmHg [9.7, 12.6] compared to measured LOP.
Conclusions: The relative error variance suggests that clinicians should measure LOP consistently for each patient to ensure BFR safety and effectiveness.
Competing Interests: Declaration of competing interest None declared.
(Copyright © 2020 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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