Health  Vol.6 No.21 , December 2014
Hemodynamic Response during Japanese-Style Bathing in Elderly Disabled Subjects
Abstract: Aims: Bathing in deep, Japanese- bathtubs is associated with high rates of sudden death in the elderly in Japan. The predominant causes of death in such cases are cardiovascular events and drowning. Blood pressure changes induced by water pressure and high temperature during bathing may be an important cause of these accidents. Therefore, we investigated the changes in blood pressure, heart rate, and oxygen saturation (SpO2) before and after bathing in elderly Japanese individuals. Methods: Forty-eight elderly (average age, 86.4 ± 7.5 years) persons were enrolled in this study. Results: Changes in systolic blood pressure after bathing correlated negatively with baseline blood pressure before bathing, and participants with baseline systolic blood pressures of <125 mmHg experienced a greater elevation in blood pressure while bathing. Pulse rate was significantly increased after bathing, and the change in pulse rate correlated negatively with the baseline values. SpO2 did not differ significantly during bathing, but changes in SpO2 correlated negatively with baseline values. Lean participants showed a more marked elevation of SpO2, and those with hypertension showed reduced SpO2. Conclusion: These data suggest that the disabled elderly with low blood pressure experience trends in cardiovascular response during bathing which differ from those of young persons.
Cite this paper: Iwane, N. , Hano, T. , Koike, Y. and Nishihara, K. (2014) Hemodynamic Response during Japanese-Style Bathing in Elderly Disabled Subjects. Health, 6, 2999-3004. doi: 10.4236/health.2014.621337.

[1]   Health and Welfare Statistics Association (2008) Death. Ito, M., Ueda, K., Yoshida, Y., Tatsumi, S., Aoki, R., Kamagata, K., et al., Eds., Journal of Health and Welfare Statistics, 55, 47-59.

[2]   Hatake, K., Kudo, R., Morimura, Y., Kasuda, S. and Ishitani, A. (2005) Occurrence of Sudden Death in the Bathroom Investigated in Nara Prefecture and Considerations of the Cause of Death in Literature. Journal of Nara Medical Association, 56, 235-246.

[3]   Shigeomi, S., Sato, W., Enzan, K. and Yoshioka, N. (2001) Sudden Death during Bathing in the Elderly. Journal of Japanese Association for Acute Medicine, 12, 109-120.

[4]   Luurila, O.J. (1987) Cardiac Arrhythmias, Sudden Death and the Finnish Sauna Bath. Advances in Cardiology, 25, 73-81.

[5]   Chiba, T., Yamauchi, M., Nishida, N., Kaneko, T., Yoshizaki, K. and Yoshioka, N. (2005) Risk Factors of Sudden Death in the Japanese Hot Bath in the Senior Population. Forensic Science International, 149, 151-158.

[6]   Chishaki, A., Nagahiro, C., Kim, M., Kobayashi, D., Oguruma, R., Fukuda, N., Nakata, A., Kagawa, T. and Nagaie, T. (2005) Differences between the Elderly and Youth in Circulatory Dynamics during Bathing. Japanese Journal of Cardiovascular Disease Prevention, 40, 28-33.

[7]   Akazawa, H., Kajihara, M., Togo, M., Ishizaki, F. and Yamamura, Y. (2000) Variations in Blood Pressure during Daily Activities in the Elderly: Effects of Bathing and Defecation. The Autonomic Nervous System, 37, 431-436.

[8]   Asakawa, Y., Takahashi, R. and Endo, F. (2006) Cardiovascular Responses during Bathing in the Elderly. Rigakuryoho Kagaku, 21, 433-436.

[9]   Chishaki, A., Nagahiro, C., Nagaie, T., Aashi, C., Kojima, F., Kuboyama, N., Adati, T., Ono, J., et al. (2004) Changes in Circulatory Dynamics during Bathing in Japanese Elderly. Japanese Journal of Cardiovascular Disease Prevention, 39, 9-14.

[10]   Chishaki, A., Nagahiro, C., Miyazono, M., Maeno, Y., Kinoshita, Y. and Nakao, H. (2008) Different Hemodynamic Effects between Sitting and Lying after Bathing the Elderly with Mild Hypertension. Japanese Journal of Cardiovascular Disease Prevention, 43, 139-146.

[11]   Hayasaka, S., Okayama, M., Ishikawa, S., Nakamura, Y. and Kajii, E. (2002) The Method of the Elderly Person Bathing Service and Present Status. Journal of Health and Welfare Statistics, 49, 23-30.

[12]   Kawamoto, R., Okamoto, K., Yamada, A. and Oguni, T. (1998) Effect of Warm Bathing on Blood Pressure in Bedridden Patients. Japanese Journal of Geriatrics, 35, 299-302.

[13]   Miyao, M., Kuwajima, I., Uno, A., Kuramoto, K. and Ozawa, T. (1994) Effect of Warm Bathing on Short-Term and 24-Hour Blood Pressure in Bedridden Elderly Patients. Japanese Journal of Geriatrics, 31, 849-853.

[14]   Nagasawa, Y., Komori, S., Sato, M., Tsuboi, Y., Umetani, K., Watanabe, Y. and Tamura, K. (2001) Effects of Hot Bath Immersion on Autonomic Activity and Hemodynamics—Comparison of the Elderly Patient and the Healthy Young. Japanese Circulation Journal, 65, 587-592.