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Access Type
WSU Access
Date of Award
January 2023
Degree Type
Dissertation
Degree Name
Ph.D.
Department
Science Education
First Advisor
Tamara Hew-butler
Abstract
Purpose: This study aimed to measure the acute changes in jump performance following a lower-extremity blood flow restriction training (BFRT) intervention and compare these changes with a traditional resistance training (TRT) session to assess if any possible negative changes returned to baseline within 30 minutes. Methods: A convenience sample of 11 male professional basketball players (Age: 22.4 ± 1.6: Height: 2.0 ± .6 m; Body Weight: 103.9 ± 11.21 kg; BMI: 25.6 ± 2.1 kg/m2) participated in a within-subject, one group, pretest-posttest/time-series, mixed-method design to assess post-training fatigue (three participants did not complete the TRT intervention). A randomized counter-balanced experimental procedure ensured that subjects began under different experimental conditions. Baseline countermovement jumps (CMJ) were performed prior to each trial and at different time points (5, 15, 30 mins) during a 30-minute recovery period post-BFRT and TRT. Qualitative methods (Observation and Interview) were included to provide a richer insight into the athlete’s perspective of both interventions. Differences in means of all jump performance variables were calculated between baseline measurements (pre) and all time points (5, 15, 30 minutes-post) for both intervention groups (BFRT and TRT) using a one-way repeated-measures ANOVA. A Bonferroni correction was used post hoc with statistical significance set as alpha at 0.05 level. Differences in means between groups were calculated using a two-way repeated-measures ANOVA. Results: For the BFRT trial (N = 11), three of the fourteen CMJ variables showed statistical significance within 30 minutes post-BFRT. Two output metrics, Jump Height (F(3, 27) = 5.23, p = .006) and Concentric Peak Velocity (F(1.59, 14.33) = 4.64, p = .034), with the post hoc analysis showing significant differences between baseline and jump 2 and 3. One jump strategy (fatigue) variable (CMJ Depth, F(3, 27) = 4.165, p < .015) showed significant differences from baseline to jump 2. No variables found to be significant had a practical impact exceeding 7.5% within the 30-minute recovery window. For the TRT trial (N = 8), statistically significant changes in acute jump performance were observed within 30 minutes post-TRT in two output variables Jump Height (F(1.29, 7.758) = 5.945, p = .036) and Peak Power (F(3, 18) = 5.24, p = .009). Jump Height had significant differences between baseline and jump 2 with Peak Power only having a significant main effect. None of the significant changes had a practical impact exceeding 10%. The paired sample analysis revealed no statistically significant between-group or interaction effects. Qualitative findings from the observational data show that the BFRT trial caused more physical discomfort, less tolerance, and more expressions of agony than the TRT condition. On the other hand, interview results were more ambiguous, with athletes’ responses not favoring one intervention over the other, except most participants preferred the TRT intervention over BFRT. Conclusion: The results of this study suggest that basketball athletes can safely participate in practice after performing BFRT or TRT if they recover afterward for 30 minutes.
Recommended Citation
Sabourin, Jordan L., "Does Blood Flow Restriction Training Cause Significant Acute Performance Changes?" (2023). Wayne State University Dissertations. 3892.
https://digitalcommons.wayne.edu/oa_dissertations/3892