Effect of Eight Weeks Combined Strength and Plyometric Training on Land in Performances of Immature Male Swimmers

Document Type : original article

Abstract

Purpose: There is clear evidence that resistance training can be a worthwhile and beneficial activity for
children. The purpose of the present study was to determine the effect of eight weeks combined strength and
plyometric training on land in performances of 9-12 years old male swimmers. Methods: Our participants
include; 20 boys with mean age, height and weight of 11.36±0.85 yr, 148.38±7.45 cm and 42.05±7.51 kg
respectively. Our sample was selected by purposefully non-random method then randomly divided to
experimental and control group. Training program of control group was limited to swimming practice sessions
while; the experimental group in addition to swimming training sessions, they conducted strength and
plyometric training two days weekly for eight weeks. The strength and plyometric exercises include: bench
press, leg extension, vertical jump, depth jump and medicine ball throwing. Physical and performance variables
were measured at the beginning and at the end of the training period. The data were analyzed using SPSS
(version 16) with Descriptive Statistics, Wilcoxon and Mann- Whitney U tests. Results: After 8 weeks of
training, in the experimental group, strength, muscular power, swimming performance and propulsive force in
front crawl swimming significantly increased (p <0.05). In the control group, strength bench press and
propulsive force in front crawl swimming significantly increased (p <0.05). Significant differences in strength,
muscular power and swimming performance in 25 m front crawl between experimental and control groups were
also observed (p <0.05). Conclusions: A combined strength and plyometric training allow strength and
muscular power developments in young male swimmers. Although swimming performance improvement in 25
m front crawl due to strength training was noticeable but these current results do not clarify that these training
programs can enhance swimming performance and propulsive force.

Keywords

References

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History

  • Receive Date: 16 June 2015
  • Revise Date: 16 May 2024
  • Accept Date: 31 December 2020
  • First Publish Date: 31 December 2020
  • Publish Date: 22 November 2017

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