Carotid-femoral pulse wave velocity (cfPWV) demonstrated good reliability at rest (ICC: 0.87) and moderate to good reliability post-resistance exercise in healthy young females.
Carotid-femoral pulse wave velocity demonstrates moderate to good day-to-day reliability for up to an hour following acute resistance exercise in healthy young females, supporting its use as a reliable surrogate marker in future vascular research.
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ABSTRACT Background and Aims Aerobic and resistance exercise (RE) are both promoted as positive lifestyle modifications to improve cardiovascular health. While research has shown that regular aerobic exercise can improve arterial stiffness, paucity remains surrounding the vascular effects of RE. Acute RE is shown to increase and decrease arterial stiffness following exercise bouts. Additionally, the day‐to‐day reliability of post‐RE arterial stiffness responses are currently unknown. Purpose To understand the day‐to‐day reliability of arterial stiffness following two identical bouts of acute RE in healthy young females. Methods Fifteen non‐resistance trained females (21 ± 3 years) completed two 60‐min full body RE sessions with a 7‐min aerobic warm‐up and cooldown on separate days. For each session, arterial stiffness (i.e., carotid‐femoral pulse wave velocity cfPWV) was measured before and for an hour post‐RE in 15‐min intervals. Test‐retest reliability of pre‐ and post‐RE cfPWV from the two visits was assessed using intraclass correlation coefficients (ICC) and a linear mixed model (LMM). Results cfPWV revealed good reliability at rest (ICC: 0.87, 95% confidence intervals CI: 0.66–0.96) and post‐RE at 15 (ICC: 0.76, 95% CI: 0.43–0.91), 30 (ICC: 0.72, 95% CI: 0.35–0.90), and moderate reliability at 45 (ICC: 0.69, 95% CI: 0.29–0.88), and 60 min post‐RE (ICC: 0.71, 95% CI: 0.33–0.90). LMM analysis demonstrated good reliability for cfPWV across visits (ICC: 0.81), with no significant main effect for visit (F (1,126) = 0.308, p = 0.580) or visit × time interaction (F (4,126) = 0.312, p = 0.869), indicating consistent temporal patterns between RE bouts. However, a significant main effect for time was observed (F (4,126) = 4.10, p = 0.004). Conclusion These findings suggest that cfPWV measurements at rest and following an acute bout of RE demonstrate moderate to good day‐to‐day reliability in healthy young females for up to an hour, supporting the use of cfPWV in research investigating vascular responses to RE.
Blumenburg et al. (Mon,) reported a other. Carotid-femoral pulse wave velocity (cfPWV) demonstrated good reliability at rest (ICC: 0.87) and moderate to good reliability post-resistance exercise in healthy young females.
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