Document Type

Poster Presentation

Publication Date

Spring 4-8-2026

Abstract

Weightlifting is a popular activity that can help individuals maintain muscle mass or improve sports and exercise performance. However, limited research compares rest-pause (RPS) training and traditional weightlifting (TWL) sets with respect to hormonal response and neuromuscular activation. Purpose: The purpose of this study was to assess two training protocols of weightlifting and effects on salivary testosterone response and muscle activity. Methods: Four college-age participants completed the study, three male and one female. Participants completed three trials consisting of one descriptive and two experimental trials comparing traditional weightlifting and rest-pause sets. The descriptive trial was performed to establish the weight to be lifted during the subsequent trials through 1RM testing and baseline descriptive measurements of height, weight, and body composition. Two experimental trials occurred with participants completing a total of 32 repetitions for the barbell back squat and incline bench press each. Traditional weightlifting (TWL) of 4 sets of 8 repetitions per exercise served as the control trial. Rest-pause sets (RPS) served as the experimental trial, which included attempting maximal repetitions until fatigue, followed by 20 seconds of rest. After which, the participant repeats the process until 32 repetitions or volitional fatigue occurs. Saliva was collected for testosterone secretion analysis before and after exercise, and an electromyograph (EMG) was used to assess muscle activation during exercise. Results: 4 total participants completed this study, with 3 being included in the analysis for muscle activation and four included in the analysis of salivary testosterone. An increase in muscle activation is significant in RPS compared to TWL (p = 0.133), whereas salivary testosterone was not different (p = 0.861). Conclusion: Preliminary findings suggest RPS may increase neuromuscular activation relative to TWL. This study will continue with the recruitment of more participants to determine if statistical significance is achieved regarding muscle activation.

Comments

This research was conducted for the purposes of adding to the current scientific knowledge, as well as providing insight on how resistance training may vary. 

It should be acknowledged that this study will be built upon and further improved in the future. 

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