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Area of Science:

  • Sports Science
  • Biomechanics
  • Strength and Conditioning

Background:

  • Strongman training, especially the log press, is increasingly popular.
  • Existing research often compares log clean and jerk or press with barbell lifts.

Purpose of the Study:

  • To investigate the force-time characteristics of the push press using barbells and strongman logs of varying diameters.
  • To analyze the braking and propulsive phases of the push press with different implements.

Main Methods:

  • Ten experienced athletes performed the push press at 65% of their 1 repetition maximum.
  • Implement variations included a small-diameter log, a large-diameter log, and a standard barbell.
  • Force, velocity, power, impulse, and displacement were analyzed.

Main Results:

  • Significant differences were observed in braking and propulsive characteristics between the barbell and both logs.
  • The small log demonstrated significantly greater power, velocity, impulse, and force compared to the large log.
  • Propulsive outputs were substantially higher with a barbell compared to both log types, with a greater mechanical demand associated with larger log diameters.

Conclusions:

  • Barbell push press yields higher propulsive outputs than log push press.
  • Log diameter influences force-time characteristics, with smaller logs demanding greater power and velocity.
  • Athletes may need to adjust training loads based on log diameter to optimize performance and mechanical demand.