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J Hum Kinet. 2015 Apr 7;45:177-85. doi: 10.1515/hukin-2015-0018. eCollection 2015 Mar 29.

Acute effects of different stretching techniques on the number of repetitions in a single lower body resistance training session.

Author information

1
Federal University of Rio de Janeiro. Postgraduate Program in Physical Education Stricto Sensu/ UFRJ. Rio de Janeiro, Brazil.
2
Federal University of Rio de Janeiro. Postgraduate Program in Physical Education Stricto Sensu/ UFRJ. Rio de Janeiro, Brazil. ; Department of Physical Education, Associate Graduate Program in Physical Education UPE / UFPB, João Pessoa, Paraíba -Brazil.
3
California State University, Fullerton. Department of Kinesiology. Fullerton, California.
4
Federal University of Rio de Janeiro. Postgraduate Program in Physical Education Stricto Sensu/ UFRJ. Rio de Janeiro, Brazil. ; University Estacio de Sá, Rio de Janeiro, Rio de Janeiro - Brazil.

Abstract

This study aimed to investigate the acute effects of passive static and ballistic stretching on maximal repetition performance during a resistance training session (RTS). Nine male subjects underwent three experimental conditions: ballistic stretching (BS); passive static stretching (PSS); and a specific warm-up (SW). The RTS was composed of three sets of 12RM for the following exercises: leg press 45 (LP), leg extension (LE), leg curl (LC), and plantar flexors (PF). Performance of six sessions was assessed 48 hours apart. The first visit consisted of a familiarization session including stretching methods and exercises used in the RTS. On the second and third visit, a strength test and retest were performed. During the fourth to the sixth visit, the volunteers randomly performed the following protocols: BS+RTS; PSS+RTS; or SW+RTS. For the sum of the RM number of each three-set exercise, significant differences were found between PSS vs. SW for the LP (p = 0.001); LE (p = 0.005); MF (p = 0.001); and PF (p = 0.038). For the comparison between the methods of stretching PSS vs. BS, significant differences were found only for the FP (p = 0.019). When analyzing the method of stretching BS vs. SW, significant differences were found for the LP (p = 0.014) and MF (p = 0.002). For the total sum of the RM number of three sets of the four exercises that composed the RTS, significant differences were observed (p < 0.05) in the following comparisons: PPS vs. SW (p = 0.001), PPS vs. BS (p = 0.008), and BS vs. SW (p = 0.002). Accordingly, the methods of passive static and ballistic stretching should not be recommended before a RTS.

KEYWORDS:

ballistic stretching; lower limbs; muscular strength; passive stretching; warm-up

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