Key result
10-second and 30-second static stretching exercises before maximal exercise elicited similar responses in anaerobic capacity and most heart rate variability parameters.
Why the study?
To examine the acute effect of different durations of static stretching on heart rate variability and anaerobic capacity during the Wingate anaerobic test in moderately physically active men.
Does 30 seconds of static stretching compared to 10 seconds of static stretching affect heart rate variability and anaerobic capacity in healthy young men?
RCT (n=65)
Open-label
Randomly in groups
No
Does 30 seconds of static stretching compared to 10 seconds of static stretching affect heart rate variability and anaerobic capacity in healthy young men?
Absolute Event Rate: 387.7% vs 416.4%
p-value: p=<0.05
Short (10s) and long (30s) static stretching have similar acute effects on heart rate variability and anaerobic performance, suggesting shorter stretching is more time-efficient before high-intensity exercise.
No effect on anaerobic capacity; hypothesis-generating for HRV-exercise economy links, should not change practice.
This study aimed to examine the acute effect of different durations of static stretching on heart rate variability (HRV) and, the anaerobic capacity of moderately physically active men during the Wingate anaerobic test (WAnT) at two different pre-exercise periods. Sixty-five healthy young male volunteers performed 10 s static stretching (STS) and 30 s static stretching (LTS) consisting of five static stretching exercises before WAnT on two non-consecutive days. HRV was measured pre (60 s), during (30 s) and post (60 s) WAnT after two different periods of static stretching. Anaerobic capacity variables were also measured during WAnT. STS and LTS had similar effects on other HRV parameters except for Mean-RR during the WAnT. There was no significant difference between the protocols applied in any of the anaerobic capacity test values. But there was a negatively significant relationship between the average power output of 30 s static stretching and pNN50. This result has shown that STS and LTS exercises have a similar effect during maximal exercise, so if the practitioners carry out static stretching exercises before maximal or high-intensity exercise, it is recommended to perform the STS exercise in terms of the economy of the exercise.
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ALPARSLAN et al. (2022) conducted an RCT in Healthy moderately physically active men (n=65). Static stretching vs. 2 sets of 30 seconds (LTS) was evaluated on Mean-RR during Wingate Anaerobic Test (ms) (p=<0.05). 10-second and 30-second static stretching exercises before maximal exercise elicited similar responses in anaerobic capacity and most heart rate variability parameters.
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