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Abstract
Heart rate recovery (HRR) following exercise serves as a simple, noninvasive indicator of autonomic function and cardiovascular fitness. Impaired HRR has been linked with increased cardiovascular risk, even in apparently healthy individuals. However, there is limited data on HRR among young adults in the Nigerian population. This study aimed to characterize typical HRR values among undergraduate students of the University of Benin and to examine their relationship with key lifestyle and stress-related factors, including physical activity and perceived academic stress. A total of 346 apparently healthy male and female undergraduate student aged 18 – 25 years with a mean age of 21.09 ± 1.87 years participated in this cross sectional observational study. Of the total respondents, 167 (48.3%) were male and 179 (51.7%) were female. Resting and exercise heart rate, and blood pressure were
recorded. HRR was determined at 1, 2, and 5-minutes post-exercise. Physical activity levels were assessed using the International Physical Activity Questionnaire (IPAQ), while perceived stress was evaluated with the Perceived Stress Scale (PSS). Data was
summarize using descriptive statistics. Independent t-tests, ANOVA, correlation, and linear regression, with significance set at p < 0.05 were used to test the hypothesis. Results: The participants had mean HRR values of 50.34 ± 19.61 bpm (1-minute),
65.32 ± 21.27 bpm (2-minute), and 75.35 ± 22.72 bpm (5-minute). No significantgender differences were observed in HRR (p > 0.05). Physical activity showed a significant negative correlation with 5-minute HRR (r = –0.15, p = 0.005), while perceived academic stress showed no significant relationship with HRR across time points. HRR significantly predicted maximum heart rate (B = 0.737, p < 0.001), but not resting cardiovascular parameters. Conclusion: The findings suggest that HRR after 6MWT among healthy young adults at the University of Benin reflects generally normal autonomic recovery patterns, independent of gender and academic stress levels. However, reduced physical activity may influence delayed autonomic recovery. Regular physical activity and preventive cardiovascular screening are recommended to promote optimal autonomic health.
recorded. HRR was determined at 1, 2, and 5-minutes post-exercise. Physical activity levels were assessed using the International Physical Activity Questionnaire (IPAQ), while perceived stress was evaluated with the Perceived Stress Scale (PSS). Data was
summarize using descriptive statistics. Independent t-tests, ANOVA, correlation, and linear regression, with significance set at p < 0.05 were used to test the hypothesis. Results: The participants had mean HRR values of 50.34 ± 19.61 bpm (1-minute),
65.32 ± 21.27 bpm (2-minute), and 75.35 ± 22.72 bpm (5-minute). No significantgender differences were observed in HRR (p > 0.05). Physical activity showed a significant negative correlation with 5-minute HRR (r = –0.15, p = 0.005), while perceived academic stress showed no significant relationship with HRR across time points. HRR significantly predicted maximum heart rate (B = 0.737, p < 0.001), but not resting cardiovascular parameters. Conclusion: The findings suggest that HRR after 6MWT among healthy young adults at the University of Benin reflects generally normal autonomic recovery patterns, independent of gender and academic stress levels. However, reduced physical activity may influence delayed autonomic recovery. Regular physical activity and preventive cardiovascular screening are recommended to promote optimal autonomic health.
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