Degree Name
PhD (Doctor of Philosophy)
Program
Sport Physiology and Performance
Date of Award
8-2025
Committee Chair or Co-Chairs
Michael H. Stone
Committee Members
Satoshi Mizuguchi, Marco Duca, Daniel Gahreman
Abstract
The investigations concerned the effects of resistance training programs with different load–volume configurations on multiple strength characteristics, including maximal strength, isometric force–time properties, and force–velocity (F–v) relationships. Following a review of training interventions across these variables, two ecologically valid resistance training prescriptions were compared: high-load, low-volume (HLLV) and moderate-load, moderate-volume (MLMV). Fourteen recreationally trained participants were grouped into either HLLV (three sets of two repetitions at ≥ 80% 1RM) or MLMV (three sets of ten repetitions at 60–80% 1RM), incorporated into the main lifts of a 4-week program. Strength was assessed using back squat one-repetition maximum (1RM), isometric mid-thigh pull (IMTP) peak force (PF), and rate of force development (RFD) at 90, 200, and 250 ms. Dynamic performance was evaluated through static and countermovement jumps (SJ and CMJ) loaded with 0 kg and 20 kg, measuring jump height, PF, peakpower (PP), force at PP, and velocity at PP. Both groups improved back squat 1RM and IMTP PF over time (p < 0.05), though no statistically significant time×group interaction or RFD improvements were observed. Time effects were also shown for PP and force at PP in SJ and CMJ, and a statistically significant interaction was noted for PF in CMJ with 0kg. Within-group effect sizes suggested that HLLV favored gains in high-velocity performance in CMJ (PP, velocity at PP, jump height) and isometric RFD, while MLMV promoted greater improvements in low-velocity force production in SJ (PP, force at PP, PF) and may negatively affect isometric RFD. Results suggest that both HLLV and MLMV training are effective for improving maximal strength in recreationally trained individuals. HLLV training may offer additional benefits for rapid force production as well as high-velocity force production with countermovements, while MLMV may be more effective for enhancing dynamic strength at lower movement velocities.
Document Type
Dissertation - unrestricted
Recommended Citation
Yu, Chieh-Hsin, "Resistance Training Load-Volume Effects on Maximal Strength, Isometric Force-Time Characteristics, and Force-Velocity Relationships" (2025). Electronic Theses and Dissertations. Paper 4583. https://dc.etsu.edu/etd/4583
Copyright
Copyright by the authors.
