Acute Effects of the Interval and Duration of Intermittent Exercise on Arterial Stiffness in Young Men

Jianchang Ren (), Haili Xiao and Ping Wang
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Jianchang Ren: College of Physical Education and Sports Science, Lingnan Normal University, Zhanjiang 524048, China
Haili Xiao: College of Physical Education and Sports Science, Lingnan Normal University, Zhanjiang 524048, China
Ping Wang: College of Physical Education and Sports Science, Lingnan Normal University, Zhanjiang 524048, China

IJERPH, 2022, vol. 19, issue 24, 1-11

Abstract: We proved the hypothesis that intermittent exercise would have a better effect on arterial stiffness by shortening the duration of intervals and increasing the number of bouts. Twenty healthy male college students (20.4 ± 0.4 years) were randomly assigned to a quiet control (CON), 30 min continuous exercise (CE), long-interval intermittent exercise with long intervals (IELL), long-interval intermittent exercise with short intervals (IELS), and short-interval intermittent exercise with short intervals (IESS). The intensity was set to 45% of the heart rate reserve. The brachial-ankle pulse wave (baPWV) was measured at baseline (BL), 0 min post-exercise, 20 min post-exercise, 40 min post-exercise, and 60 min post-exercise. BaPWV changes (⊿baPWV) from the BL in the same tests were used for the analysis. ⊿baPWV did not change significantly in the CON. ⊿baPWV decreased significantly at 0, 20, and 40 min in all exercise tests. ⊿baPWV decreased significantly at 60 min in IELS and IESS. At 60 min, the ⊿baPWV of IELS and IESS was still significantly lower than that of CON and CE, and the ⊿baPWV of IESS was still significantly lower than that of IELS. Hence, shortening the intervals of intermittent exercise and increasing the number of repetitions may enhance the effect of improving arterial stiffness.

Keywords: intermittent exercise; continuous exercise; arterial stiffness; interval (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
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