TY - JOUR
T1 - Greater arterial wall viscosity in endurance-trained men
AU - Kawano, Hiroshi
AU - Asaka, Meiko
AU - Yamamoto, Kenta
AU - Gando, Yuko
AU - Konishi, Masayuki
AU - Sakamoto, Shizuo
AU - Miyachi, Motohiko
AU - Higuchi, Mitsuru
N1 - Funding Information:
We wish to thank all subjects for participating our study. This study was supported by Grants-in-Aid for Scientific Research 18K10826 (to H.K.) and 15K01629 (to H.K.) from Japan Society for the Promotion of Science.
Publisher Copyright:
© 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.
PY - 2021/8
Y1 - 2021/8
N2 - Purpose: The age-associated increase in arterial wall viscosity (AWV) is attenuated by high cardiorespiratory fitness level. However, AWV in endurance-trained athletes have not been determined. We designed a cross sectional study to compare central AWV and compliance between endurance-trained young athletes and age-matched control men. Methods: Twenty-one endurance-trained men (age 20.7 ± 0.3 years) and 20 age-matched healthy control men (age 21.6 ± 0.4 years) were studied. The common carotid artery was measured noninvasively by tonometry and automatic tracking of B-mode images to obtain instantaneous pressure and diameter hysteresis loops, and we calculated the dynamic carotid arterial compliance, static (effective and isobaric) compliance, and viscosity index. Results: The AWV index in the endurance-trained men was larger than the control peers (2285 ± 181 vs. 1429 ± 124 mmHg·s/mm: P < 0.001). In addition, dynamic and static compliance were not statistically different between both groups. Conclusion: The present study indicated that the central AWV in endurance-trained athletes was greater than age-matched healthy control men. We believe that the AWV, as well as arterial compliance, is an important element for assessing vascular adaptation to endurance training.
AB - Purpose: The age-associated increase in arterial wall viscosity (AWV) is attenuated by high cardiorespiratory fitness level. However, AWV in endurance-trained athletes have not been determined. We designed a cross sectional study to compare central AWV and compliance between endurance-trained young athletes and age-matched control men. Methods: Twenty-one endurance-trained men (age 20.7 ± 0.3 years) and 20 age-matched healthy control men (age 21.6 ± 0.4 years) were studied. The common carotid artery was measured noninvasively by tonometry and automatic tracking of B-mode images to obtain instantaneous pressure and diameter hysteresis loops, and we calculated the dynamic carotid arterial compliance, static (effective and isobaric) compliance, and viscosity index. Results: The AWV index in the endurance-trained men was larger than the control peers (2285 ± 181 vs. 1429 ± 124 mmHg·s/mm: P < 0.001). In addition, dynamic and static compliance were not statistically different between both groups. Conclusion: The present study indicated that the central AWV in endurance-trained athletes was greater than age-matched healthy control men. We believe that the AWV, as well as arterial compliance, is an important element for assessing vascular adaptation to endurance training.
KW - Arterial compliance
KW - Arterial stiffness
KW - Arterial viscoelasticity
KW - Endurance training
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U2 - 10.1007/s00421-021-04686-5
DO - 10.1007/s00421-021-04686-5
M3 - Article
C2 - 33890159
AN - SCOPUS:85104600945
SN - 1439-6319
VL - 121
SP - 2219
EP - 2228
JO - European Journal of Applied Physiology
JF - European Journal of Applied Physiology
IS - 8
ER -