Online Program

Physical and mental effects of bathing in bathtub with hot water investigated through randomized intervention study

Sunday, November 3, 2013

Yasuaki Goto, ONSEN medical science research center, Japan Health & Research Institute, Tokyo, Japan
Shinya Hayasaka, Onsen Medical Science Research Center, Japan Health & Research Institute, Tokyo, Japan
Yosikazu Nakamura, Department of Public Health, Jichi Medical University, Tochigi 329-0498, Japan
It has been known that bathing in hot water augments blood flow and stimulates metabolism. However there are just a few reports which showed the effects of bating through interventional study. The purpose of this study is to investigate whether the bating in hot water daily has better effects physically and mentally than taking shower. Subjects were 40 people aged 30 y.o and over and we applied them to bathe in hot water for 2 weeks and to take shower for 2 weeks continuously using cross-over methods from October to November in 2011. Each group was consisted of 20 subjects. We conducted a questionnaire survey in terms of self rated health, smile, pain, condition of skin, stress, and fatigue at the point of 2 weeks and 4 weeks of the study. SF-8 and POMS were also used at the same point. Statistical analysis was performed using paired t-test. Subjects who bath in bathtub with hot water for 2 weeks showed better condition with respect to self rated health, smile and condition of skin than subjects with who take shower for 2 weeks. Stress, fatigue, tension-anxiety, anger-hostility, and depression-dejection were less in subjects who bath in hot water for 2 weeks. This interventional study showed good physical and mental effects of bathing in bathtub. With these results, we recommend to take bath with hot water to promote health condition.

Learning Areas:

Administer health education strategies, interventions and programs
Basic medical science applied in public health
Chronic disease management and prevention
Diversity and culture

Learning Objectives:
Evaluate the effects of Japanese bathing sytle on good health status

Keyword(s): Interventions, Behavioral Research

Presenting author's disclosure statement:

Qualified on the content I am responsible for because: I am a principle investigator of Onsen medical science research center working of psychophisiological research. Bathing in bathtub with hot water is one of the special life habits among the Japanese and I have just won the annual best paper award of the Japanese society of Balneology, climatology and physical medicine in 2012.
Any relevant financial relationships? No

I agree to comply with the American Public Health Association Conflict of Interest and Commercial Support Guidelines, and to disclose to the participants any off-label or experimental uses of a commercial product or service discussed in my presentation.