Maturation-related differences in adaptations to resistance training in young male swimmers

Jason Moran, Gavin R.H. Sandercock, Rodrigo Ramírez-Campillo, John-James Wooller, Spiros Logothetis, Patrick P.J.M. Schoenmakers, Dave A. Parry

Research output: Contribution to journalJournal Articlepeer-review

16 Citations (Scopus)

Abstract

This study examined the effects of resistance training on muscular strength and jump performance in young male swimmers. It was hypothesized that adaptations would be of a lower magnitude in less mature (Pre-peak height velocity [PHV]) than in more mature (Post-PHV) subjects. Fourteen Pre- (-1.8 ± 1.0 years) and 8 Post-PHV (1.6 ± 0.5 years) swimmers undertook a 30 minute, twice-weekly resistance training program for 8 weeks. They were compared with matched control groups (Pre-PHV: -2.0 ± 1.1, n=15; Post-PHV: 1.2 ± 1.0, n=7). The effects on lower body isometric strength (LBS), measured with mid-thigh pull, and vertical jump (VJ) height in the Post-PHV group were large (effect size: 1.3 [0.4 to 2.2]) and small (0.4 [-0.4 to 1.2]) respectively. Effects on LBS and VJ height in the Pre-PHV group were moderate (0.8 [0.1 to 1.4]) and trivial (0.2 [-0.5 to 0.8]) respectively. Estimates in the Post-PHV control group (LBS: 0.7 [-0.2 to 1.6]; VJ: 0.2 [-0.7 to 1.0]) and the Pre-PHV control group (LBS: 0.1 [-0.5 to 0.7]; VJ: -0.3 [-0.9 to 0.3]) may indicate the extent to which maturation could contribute to the performance changes seen in the respective training groups. LBS and VJ are trainable, but to different magnitudes, in Pre- and Post-PHV swimmers. Following appropriate foundational training to establish technical competency, twice-weekly resistance training sessions of 30 minutes duration, comprising 3 sets of 4 exercises can be effective in Pre-PHV and Post-PHV youth.
Original languageEnglish
Pages (from-to)139-149
Number of pages11
JournalJournal of Strength and Conditioning Research
Volume32
Issue number1
DOIs
Publication statusPublished - Jan 2018
Externally publishedYes

Keywords

  • Adaptation, Physiological
  • Adolescent
  • Adolescent Development/physiology
  • Child
  • Humans
  • Male
  • Muscle Strength/physiology
  • Muscle, Skeletal/physiology
  • Resistance Training/methods
  • Swimming/physiology

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