Comparing Post-Exercise Hypotension after Different Sprint Interval Training Protocols in a Matched Sample of Younger and Older Adults

Abstract

This study assessed the post-exercise hypotension (PEH) effect in a sample of matched young and older adults after different sprint interval training (SIT) protocols. From forty-three participants enrolled in this study, twelve younger (24 ± 3 years) and 12 older (50 ± 7 years) participants, matched for the body mass index, systolic blood pressure, and VO2max-percentiles, were selected. The participants completed two SIT protocols consisting of 4 × 30 s exercise bouts interspersed by either one (SIT1) or three minutes (SIT3) of active rest. The peripheral systolic (pSBP) and diastolic (pDBP) blood pressure, central systolic (cSBP) and diastolic (cDBP) blood pressure, pulse wave velocity (PWV), and heart rate (HR) were obtained before and at different measurement time points (t5, t15, t30, t45) after the exercise. No significant time × group interactions were detected in pSBP (p = 0.242, η² = 0.060), pDBP (p = 0.379, η² = 0.046), cSBP (p = 0.091, η² = 0.861), cDBP (p = 0.625, η² = 0.033), PWV (p = 0.133, η² = 0.076), and HR (p = 0.190, η² = 0.123) after SIT1. For SIT3 no significant time × group interactions could be detected for pSBP (p = 0.773, η² = 0.020), pDBP (p = 0.972, η² = 0.006), cSBP (p = 0.239, η² = 0.060), cDBP (p = 0.535, η² = 0.036), PWV (p = 0.402, η² = 0.044), and HR (p = 0.933, η² = 0.009). Matched samples of young and older adults reveal similar PEH effects after HIIT. Accordingly, age does not seem to affect PEH after SIT. These results show that rest interval length and age modulate the PEH effect after SIT.

Recent Progress of Wearable Triboelectric Nanogenerator-Based Sensor for Pulse Wave Monitoring

“…In addition, small fluctuations in arterial pressure are not easily detected in people with different levels of body fat. As a result, the tightness of the textile-based TENG can be adjusted to fit the human body, promoting sensitivity and accurately converting pulse waves into electrical signals [ 84 , 85 ]. In the future, researchers can increase the sensitivity of TENG by changing its structure and material.…”

Post-Exercise Hypotension: An Alternative Management Strategy for Hypertension and Cardiovascular Disease?

“…Another method of inducing PEH is using sprint interval training (SIT), which has shown that the length of the interval between successive sprints and the age of the subjects can affect their post-exercise response. Specifically, longer resting intervals appear to provide a stronger physiological stimulus, suggesting that resting between successive exercise may in fact produce a greater PEH [ 10 ]. However, further studies are needed to investigate the effects of other SIT protocols to determine the optimal resting protocol for maximizing the PEH effect.…”