As the implementation of frequent high intensity functional training (HIFT) participation continues to grow among a variety of individuals, recovery between bouts of training is important to consider to prevent overtraining. PURPOSE: The purpose of this study was to determine effective measures of recovery following an acute HIFT training session. METHODS: Participants (22.0 ± 2.8 years old, 173.6 ± 30.5 lbs., and 26.2 ± 8.24% body fat) consisted of 5 females and 3 males (n = 8), who were recreationally trained (30+ minutes moderate-vigorous exercise 4+ times/week) and had previous experience with HIFT training. Participants conducted a 20-minute, as many rounds as possible (AMRAP) exercise session. Data was collected prior to the exercise session and recovery was monitored for 30-minutes immediately post- and at 24-hours post-exercise. Before exercise and 24-hours post-exercise heart rate (HR), heart rate variability (HRV), vertical jump (VJ), upper body power (UBP), perceptual measures (PM) of recovery/exertion, and Altman Self-Rating Mania Scale (ASMR) were recorded. During exercise, heart rate, rating of perceived exertion, and the number of rounds completed were recorded. Data were evaluated using a Paired Samples T-test and Wilcoxon Signed-Ranks Test with significance set at p £ 0.05 for all analysis. RESULTS: Paired samples T-tests did not indicate significant differences between pre- and post-exercise in HR, HRV, and UBP but did denote significant differences between pre- and post-exercise in VJ (21.4 ± 7.7 vs 19.9 ± 7.1 inches). Wilcoxon-Signed Ranks Tests did not demonstrate significant differences in PM or ASMR. CONCLUSION: Possible limitations of this research include the small sample size. Based on our data VJ and UBP were the only measures that demonstrated pre- to post-exercise differences and as a result these measurements appear to be parameters that are sensitive to detecting fatigue induced from an acute bout of HIFT.
Dominy, Trace A. and Whitehead, Malcolm T.
"Evaluation of Recovery from High Intensity Functional Training,"
International Journal of Exercise Science: Conference Proceedings: Vol. 2:
15, Article 125.
Available at: https://digitalcommons.wku.edu/ijesab/vol2/iss15/125