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Area of Science:

  • Exercise Physiology
  • Sports Science
  • Bodybuilding Research

Background:

  • Resistance training is crucial for bodybuilders to enhance muscle mass and strength.
  • Optimizing training frequency is key for maximizing adaptations in elite athletes.
  • Understanding the effects of different training splits is essential for performance enhancement.

Purpose of the Study:

  • To compare the effects of 4 vs. 6 weekly resistance training sessions on body composition and muscular strength.
  • To evaluate the efficacy of different training frequencies in elite male bodybuilders.
  • To determine if higher training frequency leads to superior results in strength and body composition.

Main Methods:

  • Ten elite male bodybuilders were divided into two groups: training 4 times/week (G4×) or 6 times/week (G6×).
  • Participants underwent a 4-week training program with 4 sets of 6-12 repetitions maximum (RM) per exercise in a pyramid fashion.
  • Body composition was measured using dual-energy X-ray absorptiometry, and muscle strength was assessed via 1RM bench-press testing.

Main Results:

  • Both groups showed significant increases in fat-free mass (G4×: +4.2%, G6×: +3.5%) and muscular strength (G4×: +8.4%, G6×: +11.4%).
  • No significant group-by-time interaction was observed, indicating similar adaptation rates between frequencies.
  • Individualized nutrition plans were provided to all participants.

Conclusions:

  • Training frequencies of 4 and 6 times per week promote comparable improvements in fat-free mass and muscular strength in elite bodybuilders.
  • The study suggests that optimizing training volume and intensity may be more critical than frequency alone for these adaptations.
  • These findings can inform training program design for advanced bodybuilders seeking to maximize muscle and strength gains.