Date of Award
2025
Document Type
Thesis
Degree Name
Master of Science (MS)
Department
Physical Education
Abstract
Exercise strategies targeted to increase lipid oxidation (LOx) in the resting state present an opportunity to optimize long-term metabolic health. However, research examining the effects of resistance training (RT) on LOx in females remains scarce, particularly with no studies yet examining whether differences exist in LOx between upper and lower body RT. This study examined LOx changes following volume-load equated upper and lower body RT in well-trained, eumenorrheic females. Twenty-two (age: 25.4 ± 5.6 years, BMI: 24.6 ± 2.7) females completed a 3-repetition-maximum (RM) and 1RM test for the barbell back squat (BS) and bench press (BP), respectively. From these assessments, an equated volume-load (sets × repetitions × load) was determined using 65% 1RM of subjects’ BS and BP. During the first 5 days from onset of the subjects’ follicular phase, metabolic testing was completed before either the BS or BP, then again immediately-post, and 30-, 60-, and 90-min post-RT. There were no significant differences between BS or BP for LOx rates (p > 0.05). However, both exercises induced a significant elevation in LOx rates, post-RT (p < 0.001). LOx rates relative to fat free mass (determined via DXA scan) increased (p < 0.05) from baseline (1.11 ± 0.53 mg·kg-1FFM·min-1) immediately and through 90 min post-RT (mean range: LOx = 1.51 ± 0.52 – 1.72 ± 0.34 mg·kg-1FFM·min-1), with peak LOx rates occurring at 90 min (BS = 1.78 ± 0.37 mg·kg-1FFM·min-1; BP = 1.64 ± 0.31 mg·kg-1FFM·min-1). Our data demonstrate that RT increases post-exercise LOx rates in females upwards of 90-min, irrespective of muscular region. These findings suggest moderate-intensity RT of varying muscle mass size stimulates post-exercise LOx.
Recommended Citation
Parten, Alyssa L.; Smith-Ryan, Abbie E.; O'Neal, Eric K.; Lyons, T Scott; and Waldman, Hunter S., "Upper and lower body volume-equated resistance exercise increases post-exercise lipid oxidation in trained eumenorrheic females." (2025). Theses. 49.
https://roar.una.edu/theses/49
