Lower Repetition Induces Similar Postactivation Performance Enhancement to Repetition Maximum After a Single Set of...

Area of Science:

• Sports Science
• Exercise Physiology
• Biomechanics

Background:

• Postactivation performance enhancement (PAPE) is a temporary increase in muscle force production following a conditioning activity.
• Understanding optimal conditioning activity parameters for PAPE is crucial for training periodization and performance optimization.

Purpose of the Study:

• To investigate the acute PAPE responses to lower repetitions (3, 4, or 5) at a high intensity (87% 1RM) in upper and lower body exercises.
• To compare the PAPE induced by reduced repetitions versus a repetition maximum set.

Main Methods:

• Two parts: Part 1 (upper body) involved bench press (BP) conditioning activity followed by plyometric push-ups (PPU). Part 2 (lower body) involved parallel squats (PS) conditioning activity followed by countermovement jumps (CMJ).
• Athletes performed 3, 4, or 5 repetitions of BP or PS at 87% 1RM.
• PPU and CMJ performance were assessed at regular intervals up to 12 minutes post-conditioning to determine optimal PAPE time.

Main Results:

• Mean velocity of BP and PS decreased significantly with higher repetitions (5 or 4 reps) compared to 3 reps.
• Peak force in PPU and jump height in CMJ were significantly enhanced post-conditioning across all repetition trials compared to pre-conditioning.
• No significant differences in optimal PAPE time were observed among the 3, 4, or 5 repetition trials.

Conclusions:

• A single set of 87% 1RM resistance exercises using 3 or 4 repetitions effectively elicits similar PAPE to a repetition maximum set.
• Lower repetition schemes with heavy loads can be utilized to achieve significant performance enhancement.
• These findings offer practical implications for strength and conditioning programs seeking to optimize PAPE.