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Int J Sports Med 2022; 43(03): 237-244
DOI: 10.1055/a-1518-7537
Training & Testing

Acute Effects of Parallel Back Squat Performed in Different Set Configurations on Neuromuscular Performance

Witalo Kassiano 
1   GEPEMENE—Metabolism, Nutrition and Exercise Laboratory, State University of Londrina, Londrina, Brazil
,
Manoel da Cunha Costa
2   Human Performance Laboratory, State of University of Pernambuco, Recife, Brazil
,
Fabiano de Souza Fonseca 
3   Department of Physical Education, Federal Rural University of Pernambuco, Recife, Brazil
,
Dalton de Lima-Júnior
4   Department of Physical Education, Federal University of Paraíba, João Pessoa, Brazil
,
Bruna Costa 
1   GEPEMENE—Metabolism, Nutrition and Exercise Laboratory, State University of Londrina, Londrina, Brazil
,
Leonardo de Sousa Fortes
4   Department of Physical Education, Federal University of Paraíba, João Pessoa, Brazil
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Abstract

We compared the acute effects of parallel back squat performed from different resistance training configurations on neuromuscular performance. Twenty-eight young adults underwent 4 experimental conditions: inter-repetition rest, traditional, traditional to failure, and rest-pause in the parallel back squat in a randomized, counterbalanced, and cross-over design. The neuromuscular performance was assessed through peak torque of knee extensors and flexors at two angular velocities (90 and 120 º/s) in three moments (before, post, and post-30 min). The peak torque of the knee extensors and flexors at 90 and 120 º/s decreased immediately after training for traditional, traditional to failure, and rest-pause (–8.1% to –17.7%, P<0.001). A greater reduction in the extensor peak torque was found at 120 º/s (P<0.05) in the rest-pause (–17.7%) when compared to traditional (–10.8%). The peak torque returned to baseline values only at post-30 min for the traditional configuration for the knee flexion action at 120 º/s. The peak torque remained similar for the muscular actions and angular velocities for the inter-repetition rest (P>0.05). Our results suggest the inter-repetition rest configuration seems to be a more appropriate strategy for maintaining the lower limb neuromuscular performance after a resistance training session.

Key words

peak torque - neuromuscular fatigue - isokinetic strength - strength training - resistance training systems - force


Publication History

Received: 07 January 2021

Accepted: 17 May 2021

Article published online:
12 July 2021

© 2021. Thieme. All rights reserved.

Georg Thieme Verlag KG
Rüdigerstraße 14, 70469 Stuttgart, Germany

 

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