Int J Sports Med 2018; 39(07): 495-501
DOI: 10.1055/a-0608-4476
Physiology & Biochemistry
© Georg Thieme Verlag KG Stuttgart · New York

Acute Effect of Interval Walking on Arterial Stiffness in Healthy Young Adults

Takanobu Okamoto
1   Department of Exercise Physiology, Nippon Sport Science University, Tokyo, Japan
,
Seok-Ki Min
2   Department of Sport Science, Korea Institute of Sport Science, Nowon-gu, Korea (the Republic of)
,
Mikako Sakamaki-Sunaga
1   Department of Exercise Physiology, Nippon Sport Science University, Tokyo, Japan
› Author Affiliations
Further Information

Publication History



accepted 03 April 2018

Publication Date:
18 May 2018 (online)

Preview

Abstract

The purpose of this study was to determine the acute effects of interval walking (IW) on arterial stiffness. The participants in this study were 14 healthy men and women (age 27.5±3.8 y). Carotid-femoral pulse wave velocity (cfPWV) was measured using an automatic oscillometric device at 30 min before (baseline) and at 30 and 60 min after walking. Participants repeated five sets of 3-min walks at 30% and 70% of maximum aerobic capacity for a total of 6 min per set in the IW trial. The participants also walked for 30 min at 50% (moderate intensity) of maximum aerobic capacity in a continuous walking (CW) trial. cfPWV was significantly decreased from baseline at 30 min (P=0.02) after the IW trial, and this reduction in cfPWV persisted for 60 min (P=0.01). In contrast, cfPWV was significantly decreased from baseline at 30 min (P=0.03) after the CW trial, but the reduction did not persist for 60 min. Moreover, changes in cfPWV in the IW trial after 30 and 60 min were significantly lower than in the CW trial (P<0.05). These results suggest that IW acutely reduces central arterial stiffness more than CW in healthy young adults.