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Postactivation Potentiation Improves Acute Resistance Exercise Performance and Muscular Force in Trained Men.
J Strength Cond Res. 2021 May 01; 35(5):1357-1363.JS

Abstract

ABSTRACT

Conrado de Freitas, M, Rossi, FE, Colognesi, LA, de Oliveira, JVNS, Zanchi, NE, Lira, FS, Cholewa, JM, and Gobbo, LA. Postactivation potentiation improves acute resistance exercise performance and muscular force in trained men. J Strength Cond Res 35(5): 1357-1363, 2021-The purpose of this study was to investigate the effects of heavy back squat (90% one repetition maximum [1RM]) postactivation potentiation (PAP) on acute resistance exercise performance and force production in recreationally trained men, and to verify the relationship between maximal strength and the PAP response. Ten resistance-trained men randomly completed 4 experimental trials: (a) back squats without PAP (No-PAP), (b) back squats with PAP, (c) maximum voluntary isometric contraction (MVIC) of the quadriceps without PAP, and (d) MVIC with PAP. Back squats were performed with 4 sets at 70% of 1 RM with 2 minutes of rest interval. The number of squats repetitions performed was recorded for each set, and a total number of repetitions were calculated to analyze performance. Maximum voluntary isometric contraction was measured using electronic dynamometer, and the peak force and mean force were recorded. Blood lactate concentration was analyzed presquat and postsquat exercise. Repetitions performed in the first set was significantly (p < 0.001) greater in the PAP condition (22.00 ± 5.14) compared with No-PAP (15.50 ± 5.10), which resulted in significantly (p = 0.001) more total repetitions performed in the PAP (56.20 ± 17.3) condition compared with No-PAP (48.80 ± 14.5). Maximum voluntary isometric contraction peak was higher in PAP than in No-PAP (PAP = 765.7 ± 147.8 vs. No-PAP = 696.8 ± 131.5 N, p = 0.006). No significant correlations were observed between back squat 1RM relative to body mass and the PAP response in squat and MVIC. There were no significant differences in lactate concentration between conditions. In conclusion, PAP resulting from a heavy load prior back squat exercise improved total volume during resistance exercise. In addition, PAP was effective to increase force production during MVIC, but there was no relationship between relative 1RM values and the PAP response in trained men.

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Authors+Show Affiliations

Conrado de Freitas M
Skeletal Muscle Assessment Laboratory (LABSIM), Department of Physical Education, School of Technology and Sciences, São Paulo State University (UNESP), Presidente Prudente, Brazil. Department of Physical Education, Post Graduation Program in Movement Sciences, School of Technology and Sciences, São Paulo State University (UNESP), Presidente Prudente, Brazil. Department of Nutrition, University of Western São Paulo (UNOESTE), Presidente Prudente, Brazil.
Rossi FE
Department of Physical Education, Immunometabolism of Skeletal Muscle and Exercise Research Group, Federal University of Piauí (UFPI), Teresina, Brazil.
Colognesi LA
Skeletal Muscle Assessment Laboratory (LABSIM), Department of Physical Education, School of Technology and Sciences, São Paulo State University (UNESP), Presidente Prudente, Brazil. Department of Physical Education, Post Graduation Program in Movement Sciences, School of Technology and Sciences, São Paulo State University (UNESP), Presidente Prudente, Brazil.
de Oliveira JVNS
Department of Nutrition, University of Western São Paulo (UNOESTE), Presidente Prudente, Brazil. Exercise and Immunometabolism Research Group, Department of Physical Education, São Paulo State University (UNESP), Presidente Prudente, Brazil.
Zanchi NE
Department of Physical Education, Laboratory of Cellular and Molecular Biology of Skeletal Muscle (LABCEMME), São Luis, Brazil; and.
Lira FS
Exercise and Immunometabolism Research Group, Department of Physical Education, São Paulo State University (UNESP), Presidente Prudente, Brazil.
Cholewa JM
Department of Kinesiology, Coastal Carolina University, Conway, South Carolina.
Gobbo LA
Skeletal Muscle Assessment Laboratory (LABSIM), Department of Physical Education, School of Technology and Sciences, São Paulo State University (UNESP), Presidente Prudente, Brazil. Department of Physical Education, Post Graduation Program in Movement Sciences, School of Technology and Sciences, São Paulo State University (UNESP), Presidente Prudente, Brazil.

MeSH

ExerciseHumansIsometric ContractionMaleMuscle StrengthMuscle, SkeletalQuadriceps MuscleResistance Training

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30507733

Citation

Conrado de Freitas, Marcelo, et al. "Postactivation Potentiation Improves Acute Resistance Exercise Performance and Muscular Force in Trained Men." Journal of Strength and Conditioning Research, vol. 35, no. 5, 2021, pp. 1357-1363.
Conrado de Freitas M, Rossi FE, Colognesi LA, et al. Postactivation Potentiation Improves Acute Resistance Exercise Performance and Muscular Force in Trained Men. J Strength Cond Res. 2021;35(5):1357-1363.
Conrado de Freitas, M., Rossi, F. E., Colognesi, L. A., de Oliveira, J. V. N. S., Zanchi, N. E., Lira, F. S., Cholewa, J. M., & Gobbo, L. A. (2021). Postactivation Potentiation Improves Acute Resistance Exercise Performance and Muscular Force in Trained Men. Journal of Strength and Conditioning Research, 35(5), 1357-1363. https://doi.org/10.1519/JSC.0000000000002897
Conrado de Freitas M, et al. Postactivation Potentiation Improves Acute Resistance Exercise Performance and Muscular Force in Trained Men. J Strength Cond Res. 2021 May 1;35(5):1357-1363. PubMed PMID: 30507733.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Postactivation Potentiation Improves Acute Resistance Exercise Performance and Muscular Force in Trained Men. AU - Conrado de Freitas,Marcelo, AU - Rossi,Fabricio Eduardo, AU - Colognesi,Lucas Antônio, AU - de Oliveira,João Vitor N S, AU - Zanchi,Nelo Eidy, AU - Lira,Fabio Santos, AU - Cholewa,Jason M, AU - Gobbo,Luís Alberto, PY - 2018/12/7/pubmed PY - 2021/4/29/medline PY - 2018/12/4/entrez SP - 1357 EP - 1363 JF - Journal of strength and conditioning research JO - J Strength Cond Res VL - 35 IS - 5 N2 - ABSTRACT: Conrado de Freitas, M, Rossi, FE, Colognesi, LA, de Oliveira, JVNS, Zanchi, NE, Lira, FS, Cholewa, JM, and Gobbo, LA. Postactivation potentiation improves acute resistance exercise performance and muscular force in trained men. J Strength Cond Res 35(5): 1357-1363, 2021-The purpose of this study was to investigate the effects of heavy back squat (90% one repetition maximum [1RM]) postactivation potentiation (PAP) on acute resistance exercise performance and force production in recreationally trained men, and to verify the relationship between maximal strength and the PAP response. Ten resistance-trained men randomly completed 4 experimental trials: (a) back squats without PAP (No-PAP), (b) back squats with PAP, (c) maximum voluntary isometric contraction (MVIC) of the quadriceps without PAP, and (d) MVIC with PAP. Back squats were performed with 4 sets at 70% of 1 RM with 2 minutes of rest interval. The number of squats repetitions performed was recorded for each set, and a total number of repetitions were calculated to analyze performance. Maximum voluntary isometric contraction was measured using electronic dynamometer, and the peak force and mean force were recorded. Blood lactate concentration was analyzed presquat and postsquat exercise. Repetitions performed in the first set was significantly (p < 0.001) greater in the PAP condition (22.00 ± 5.14) compared with No-PAP (15.50 ± 5.10), which resulted in significantly (p = 0.001) more total repetitions performed in the PAP (56.20 ± 17.3) condition compared with No-PAP (48.80 ± 14.5). Maximum voluntary isometric contraction peak was higher in PAP than in No-PAP (PAP = 765.7 ± 147.8 vs. No-PAP = 696.8 ± 131.5 N, p = 0.006). No significant correlations were observed between back squat 1RM relative to body mass and the PAP response in squat and MVIC. There were no significant differences in lactate concentration between conditions. In conclusion, PAP resulting from a heavy load prior back squat exercise improved total volume during resistance exercise. In addition, PAP was effective to increase force production during MVIC, but there was no relationship between relative 1RM values and the PAP response in trained men. SN - 1533-4287 UR - https://www.unboundmedicine.com/medline/citation/30507733/Postactivation_Potentiation_Improves_Acute_Resistance_Exercise_Performance_and_Muscular_Force_in_Trained_Men_ DB - PRIME DP - Unbound Medicine ER -