Senior Honors Projects, 2020-current
Creative Commons License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Date of Graduation
12-14-2024
Publish
yes
Document Type
Thesis
Degree Name
Bachelor of Science (BS)
Department
Kinesiology
Advisor(s)
Christopher Womack
Abstract
Purpose: To evaluate whether grip strength accurately tracks recovery from lower-body exercise comparable to other physical tests and a blood biomarker. Methods: Six subjects (three males and three females) completed testing for estimated 1-RM, jump squat velocity, grip strength, creatine kinase and leg extension peak torque one day prior to a fatiguing session of 10 sets of squats for 10 repetitions at 60% of estimated 1-RM. Each of these tests, as well as ratings of muscular soreness were performed again 24, 48 and 72 hours after the session of squats. Results: For peak torque, the 24 hours (129.5± 35.0 Nm) (P = 0.03) and 48 hours 134.4 ± 35.4 Nm (P = 0.04) values were significantly different than Baseline. There was a trend for the 72-hour value (135.1± 38.6 Nm, P=0.07) to be lower than Baseline. For average grip strength there was no significant (P = 0.47) main effect for time (Baseline = 40.5±6.1 Kg, 24 hours =39.3±7.4 Kg, 48 hours =39.5±6.2 Kg, 72 hours =39.1±6.6 Kg). For peak jump squat velocity there was no significant (P = 0.17) main effect for time (Baseline=1.35±0.17 msec, 24 hours =1.28±0.18 msec, 48 hours =1.32±0.14 msec, 72 hours =1.35±0.16 msec). For average jump squat velocity the 24 hours value (1.18 ± 0.19 msec, P = 0.04) was significantly different than Baseline (1.29± 0.19 msec) while there was not difference between Baseline and 48 hour (1.26± 0.15 msec, P=0.62), and 72 hours (1.29 ± 0.15 msec, P= 0.76). Soreness was higher 24-hours post-exercise (4.1±0.8, P= 0.009) and 48 hours post-exercise (3.8 ± 1.2, P= 0.007) compared to 72 hours (2.4±1.4). For plasma creatine kinase there was no significant (P = 0.11) main effect for time (Baseline= 190.3±99.0 U/ml, 24 hours= 350.2 ± 119.9 U/ml, 48 hours= 226.3 ± 114.7 U/ml, 72 hours= 239.3 ± 123.7 U/ml). Conclusion: The present study suggests that grip strength is not altered by high volume lower body exercise.
Recommended Citation
Wilhelm, Emily, "Grip Strength as an Indicator of Neuromuscular Recovery" (2024). Senior Honors Projects, 2020-current. 168.
https://commons.lib.jmu.edu/honors202029/168
