Acute effects of accumulated aerobic exercise on aortic and peripheral pulse wave velocity in young males.
Ryota Kobayashi, Hiroyuki Hatakeyama, Yuto Hashimoto and 1 others
PMID 29410594WHAT IT FOUND
In nine healthy young men, two 15 minute cycling bouts at 65% VO2peak lowered carotid-femoral and femoral-ankle pulse wave velocity 20 minutes after exercise.
Heart rate rose. Blood pressure did not change.
Key findings
01In the exercise group, carotid-femoral pulse wave velocity changed from 876.0 to 762.4 cm/sec, femoral-ankle pulse wave velocity changed from 956.6 to 859.7 cm/sec, and carotid augmentation index changed from -18.9% to -32.7%.
02Heart rate changed from 55.4 to 64.1 beats/min in the exercise group, while brachial blood pressure, ankle blood pressure and carotid systolic blood pressure did not change.
STILL TO COME
How it was doneWhat they found
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What it does not show
Only nine healthy young men were studied, so the results cannot be applied to women, middle-aged people or older people. The study measured only the acute response at 20 minutes after exercise, so it does not show what happens at later time points. The study did not compare accumulated exercise with continuous exercise, so it cannot show that breaking exercise into intervals is better. The participants were healthy, sedentary, normotensive and without chronic disease, so the results do not describe patients with cardiovascular risk. The study did not examine the mechanisms behind the pulse wave velocity changes.
Declared interests
No conflicts of interest were declared.
The easy way to misread this
Do not read the lowered pulse wave velocity as proof that accumulated exercise is better than continuous exercise. The study did not compare accumulated exercise with continuous exercise.