Ischemic Preconditioning with High and Low Pressure Enhances Maximum Strength and Modulates Heart Rate Variability

Luiz Guilherme Telles, François Billaut, Aline de Souza Ribeiro, Christian Geórgea Junqueira, Luís Leitão, Ana Cristina Barreto, Patricia Panza, Jeferson Macedo Vianna and Jefferson da Silva Novaes
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Luiz Guilherme Telles: Physical Education and Sports Department, Federal University of Rio de Janeiro, Rio de Janeiro 21941-901, Brazil
François Billaut: Department of Kinesiology, Laval University, Quebec, QC G1V 0A6, Canada
Aline de Souza Ribeiro: Physical Education and Sports Department, Federal University of Juiz de Fora, São Pedro 36036-900, Brazil
Christian Geórgea Junqueira: Volta Redonda University Center, Rio de Janeiro 27240-560, Brazil
Luís Leitão: Sciences and Technology Department, Superior School of Education of Polytechnic Institute of Setubal, 2910-761 Setúbal, Portugal
Ana Cristina Barreto: Celso Lisboa University Center, Rio de Janeiro 20950-092, Brazil
Patricia Panza: Physical Education and Sports Department, Federal University of Juiz de Fora, São Pedro 36036-900, Brazil
Jeferson Macedo Vianna: Physical Education and Sports Department, Federal University of Juiz de Fora, São Pedro 36036-900, Brazil
Jefferson da Silva Novaes: Physical Education and Sports Department, Federal University of Rio de Janeiro, Rio de Janeiro 21941-901, Brazil

IJERPH, 2022, vol. 19, issue 13, 1-13

Abstract: Background: The application of ischemic preconditioning (IPC) to resistance exercise has attracted some attention, owing to increases in muscle performance. However, there is still no consensus on the optimal occlusion pressure for this procedure. This study compared the acute effects of IPC with high and low pressure of occlusion on upper and lower limb maximal strength and heart rate variability in recreationally trained individuals. Methods: Sixteen recreationally trained men (25.3 ± 1.7 years; 78.4 ± 6.2 kg; 176.9 ± 5.4 cm; 25.1 ± 1.5 m 2 kg −1 ) were thoroughly familiarized with one repetition maximum (1 RM) testing in the following exercises: bench press (BP), front latissimus pull-down (FLPD), and shoulder press (SP) for upper limbs, and leg press 45º (LP45), hack machine (HM), and Smith Squat (SS) for lower limbs. The 1 RM exercises were then randomly performed on three separate days: after a high pressure (220 mmHg, IPC high ) and a low pressure (20 mmHg, IPC low ) IPC protocol and after no intervention (control, CON). Heart rate variability was also measured at rest, during and after the entire IPC protocol, and after the exercises. Results: Maximal strength was significantly ( p < 0.05) higher in both IPC high and IPC low compared with CON in all upper- and lower-limb exercises. There was no difference between the two experimental conditions. No significant differences were found in the comparison across the different experimental conditions for LF nu , HF nu , LF/HF ratio, and RMSSD ms . Conclusions: IPC performed with both high and low pressures influenced heart rate variability, which may partly explain the maximal strength enhancement.

Keywords: ischemic preconditioning; maximum strength; resistance exercises; heart rate variability (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
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