2024-03-29T10:46:25Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00022740
2023-11-16T04:46:08Z
499:508:509:1906
Studies on the Adaptation to High Altitudes with Special Reference to Changes in Cardiovascular Functions
NAGASAKA, TETSUO
ANDO, SHIGERU
TAKAGI, KENTARO
open access
Many physiological functions were examined during 22 days of sojourn at high altitudes (4,200-7,000 m above sea level) on Mt. Aconcagua, Argentina. Parameters measured include heart rate, systolic and diastolic blood pressures, cardiac output and stroke volume calculated by Balke's formula, urinary protein, glucose and pH, RBC and Hb of blood, and muscle strength measured by a hand dynamometer and a pinch-meter. Cardiovascular dynamics judged by those parameters was markedly changed during the first two weeks and tended to be normalized towards the end of the third week of sojourn. Diastolic blood pressure continued to increase until the end of the second week. This increase of diastolic blood pressure may be caused by increased peripheral resistance due to increased blood viscosity, and may add extra work load on the subject's heart. Protein was excreted in urine when the cardiac work was lowered during this period. RBC and Hb did not increase until the third day. Subjective symptoms were also checked and analysed.
Nagoya University School of Medicine
1967-01
eng
departmental bulletin paper
VoR
https://doi.org/10.18999/nagjms.29.3.231
http://hdl.handle.net/2237/24896
https://nagoya.repo.nii.ac.jp/records/22740
10.18999/nagjms.29.3.231
http://www.med.nagoya-u.ac.jp/medlib/nagoya_j_med_sci/293/293.html
2186-3326
0027-7622
Nagoya Journal of Medical Science
29
3
231
237
https://nagoya.repo.nii.ac.jp/record/22740/files/v29n3p231_237.pdf
application/pdf
902.5 kB
2018-02-22