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. 2018 Mar 29;13(3):e0194776.
doi: 10.1371/journal.pone.0194776. eCollection 2018.

Anaerobic metabolism induces greater total energy expenditure during exercise with blood flow restriction

Miguel S Conceição  1   2 , Arthur F Gáspari  1   3 , Ana P B Ramkrapes  1 , Edson M M Junior  1 , Romulo Bertuzzi  2   3 , Cláudia R Cavaglieri  1 , Mara Patrícia T Chacon-Mikahil  1
Affiliations

Anaerobic metabolism induces greater total energy expenditure during exercise with blood flow restriction

Miguel S Conceição et al. PLoS One. .

Abstract

Purpose: We investigated the energy system contributions and total energy expenditure during low intensity endurance exercise associated with blood flow restriction (LIE-BFR) and without blood flow restriction (LIE).

Methods: Twelve males participated in a contra-balanced, cross-over design in which subjects completed a bout of low-intensity endurance exercise (30min cycling at 40% of [Formula: see text]) with or without BFR, separated by at least 72 hours of recovery. Blood lactate accumulation and oxygen uptake during and after exercise were used to estimate the anaerobic lactic metabolism, aerobic metabolism, and anaerobic alactic metabolism contributions, respectively.

Results: There were significant increases in the anaerobic lactic metabolism (P = 0.008), aerobic metabolism (P = 0.020), and total energy expenditure (P = 0.008) in the LIE-BFR. No significant differences between conditions for the anaerobic alactic metabolism were found (P = 0.582). Plasma lactate concentration was significantly higher in the LIE-BFR at 15min and peak post-exercise (all P≤0.008). Heart rate was significantly higher in the LIE-BFR at 10, 15, 20, 25, and 30min during exercise, and 5, 10, and 15min after exercise (all P≤0.03). Ventilation was significantly higher in the LIE-BFR at 10, 15, and 20min during exercise (all P≤0.003).

Conclusion: Low-intensity endurance exercise performed with blood flow restriction increases the anaerobic lactic and aerobic metabolisms, total energy expenditure, and cardiorespiratory responses.

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Conflict of interest statement

Competing Interests: The authors have declared that no competing interests exist.

Figures

Fig 1
Fig 1
Aerobic metabolism (A), anaerobic alactic metabolism (B), anaerobic lactic metabolism (C), and total energy expenditure (D) during low intensity endurance exercise (LIE) and low intensity endurance exercise with blood flow restriction (LIE-BFR). Values are mean ± SD (n = 12). * Significant difference between groups (P ≤ 0.05).
Fig 2
Fig 2. Heart rate and ventilation during and after low intensity endurance exercise (LIE) and low intensity endurance exercise with blood flow restriction (LIE-BFR).
Ex: exercise; Rec: recovery. Values are mean ± SD (n = 12). * Significant difference between groups (P ≤ 0.05). Differences over time were omitted to improve clarity.
See this image and copyright information in PMC

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