Komono Town is a well-known spa and health resort in Mie Prefecture. Komono Town has been seeking ways to promote the activities of hot spring area and health resources in surrounding areas. As part of these efforts, Komono Town has developed town-walk programs to promote the health of local residents. In this study, focusing on effect of walking on relaxation, we compared levels of stress hormones and emotional scores obtained before and after walking.

  After giving their informed consent, adult participated in two walking programs, each for a distance of approximately 7 km. Salivary cortisol levels were measured before and after intervention. In addition, the Mood Check List-Short form. 2 (MCL-S.2) and a Visual Analog Scale (VAS) were used to rate emotions before and after intervention.

  In both programs, walking tended to lower levels of salivary cortisol than resting. Low levels of cortisol, an adrenocortical hormone released during a state of predominantly sympathetic nervous activity, are thought to reflect mental relaxation; our result implies that the walking program enhanced relaxation in subjects. In addition, both MCL-S.2 and VAS rating showed that the subjects tended to feel better, more relaxed and less anxious after intervention.

  These findings suggest that the walking programs are beneficial human body thorough, for example, enhanced relaxation.

  【Introduction】One of the effects of the hot spring provides worm temperature. This effect raises temperature, and temperature control function operates and causes increase of the bloodstream. This time, these changes examined the thing by the size of the bathtub and the spring quality of the hot spring.   【Subjects and Methods】The subjects were 10 healthy adult men (mean age: 25.2 years). They bathed for 10 min in bathtubs at 42°C. The enforcement used plunge bath (approximately 1,700 L: simple alkaline hot spring) and home bathtub (approximately 300 L: hot water, 0.1% artificially chlorinated spring). Measurement item of the maximum arterial blood flow rate using the Ultrasonic Rheometer Smart Doppler 45, deep body temperature using the deep body temperature monitor core temperature CM-210, I compared each value 10 min during the bathing, and during a 10-min, 20-min, 30-min resting period after bathing, furthermore, I found the conjugation on each condition resting period after bathing.   【Result】The rise in deep body temperature and maximum arterial blood flow rate showed the result that a hot spring of the plunge bath was more meaningful than the value of the home bathtub after 10 min of bathing. The deep body temperature of the hot spring of the plunge bath significantly rose from bathing 3 min after. In deep body temperature with the resting period after bathing, in the hot spring of the plunge bath, a meaningful rise was maintained in hot water 13 min for population chloride spring 16 min of the home bathtub for 15 min.  【Discussion】In thinks that a population spring let you maintain a temperature rise that it disturbs a drop of the water temperature by abundant quantity of water in the plunge bath that hot spring plunge bath had a bigger deep body temperature rise, maximum arterial blood flow rate than home bathtub, and the deep body temperature rise in the home bathtub was continued.

Background: Nasal obstruction is an annoying condition. In this study, we evaluated the effects of hot spring bathing at 41 to 42°C using a rhinomanometer. Methods: Ten healthy adult volunteers (10 men, mean age of 27.8±4.4 years) were asked to bathe in a hot spring for 10 minutes. Using a rhinomanometer (HI-801), nasal resistance was measured before and after bathing by active anterior rhinomanometry. Total nasal resistance was calculated using Ohm’s law formula with right and left nasal resistance values (1/T=1/R+1/L, T: bilateral resistance, R: right resistance, L: left resistance). Resistance at ΔP=100 Pa was used for evaluation. Results: Right and left nasal resistance values were significantly decreased after bathing in subjects with a pre-bathing nasal resistance of greater than 0.75 Pa/cm3/s (inspiratory, P=0.0117; expiratory, P=0.0277; Wilcoxon t-test). No significant change was observed in subjects with a pre-bathing nasal resistance of below 0.75 Pa/cm3/s.Post-bathing total nasal resistance was significantly decreased in subjects with a pre-bathing nasal resistance of greater than 0.5 Pa/cm3/s (P=0.0115; Wilcoxon t-test). Conclusion: This study showed that nasal obstruction can be improved by hot spring bathing, which may contribute to the reasons why cold symptoms are relieved by hot spring bathing.

 Because bathing frequency decrease as Alzheimer disease (AD) worsens, we investigated the relation between cognitive disfunction and bathing frequency.  We asked AD patients and their caregivers about the number of times the patient bathed per week before onset of dementia and the time of first clinical consultation. We investigated the relation between scores from a cognitive function test (Hasegawa’s Dementia Scale-Revised [HDS-R], the Mini Mental State Examination [MMSE] and Wechsler Adult Intelligence Scale-Revised [WAIS-R]), and a depression assessment (Zung Self-rating Depression Scale [SDS]) and number of baths taken per week.  Before onset of dementia, the average number of baths taken by 89 AD patients (26 men, 63 women; range: 63-90 years, average: 79.8 years), was 6.6 times/week. At evaluation time, this number had decreased significantly to 5.3 times/week (p<0.001). A significant positive correlation was found between perfomance Intelligence Quotient (IQ) and total IQ of the WAIS-R and number of baths (p<0.001, p<0.01, respectively). No significant correlation coefficient was found between HDS-R, MMSE, verbal IQ of the WAIS-R and the SDS and number of baths. Reasons of the patients gave for less frequent bathing were that bathing was troublesome or was forgotten and that thermoregulation of bath water had become impossible.  The results suggested that in AD patients, number of baths taken decreased with aggravation of cognitive dysfunction and that there were multiple participating factors including memory disturbance, depressive state, and, particularly, executive dysfunction.

 The purposes of this study were to analyze the chemical composition of some bath water in a simple alkaline hot spring utilizing a hospital and clarifying the factors that influence the concentration of each component of the hot spring water accompanying the bathing.  Water samples were collected in plastic bottles from some bath water and transported to the laboratory. The pH value, electrical conductivity, cations (sodium, potassium, magnesium and calcium ions), anions (fluorine, chlorine, nitrite, nitrate and sulfate ions) and metasilicic and metaboric acids were measured. To investigate the factors that increase concentrations of each component in bathing water, aeration examinations with air or nitrogen gas were continued for one month.  The concentrations of sulfate and nitrate ions in the bath water showed an increased tendency compared to those of the hot spring water just after welling up. After aeration with air, the concentration of sulfate ions became higher than that with nitrogen gas. On the contrary, an increase in the concentration of nitrate ions was not found in water aerated with air or nitrogen gas.  In conclusion, the oxidation of sulfur in the hot spring water may have caused the density change of the sulfate ions in the bath water. As for the nitrate ions, the increase in the concentration in the bath water seems to have been caused by perspiration during bathing, but not by oxidation for nitrogen in the hot spring water.

  A foot bath is one of the partial baths which soaks a foot in hot water. The effect makes the blood circulation of the part of the warmed foot better, and is effective for fatigue, edema, poor circulation, and sleep. The purpose in this study is to examine how aging influences the change of the autonomic nerve during a foot bath. The subjects were nine elderly individuals (four men, five women, average age of 73.5 ± 8.4 years old), eight young individuals (all men, average age of 25.5 ± 3.4 years old), and for a 20-minute foot bath, when I touched the lower thigh to the 41°C bath in a seated position for rest ten minutes, performed rest after a foot bath for five minutes. Tympanic temperature with a thermistor, skin blood flow with a laser Doppler flowmeter, and blood pressure and heart rate with an automatic sphygmomanometer were measured. In the younger subjects, tympanic temperature was significantly increased compared to the elderly subjects, and skin blood flow was significantly increased during the foot bath in the lower thigh with both subjects, and the younger subjects were significantly increased compared to the elderly subjects. The femor-skin blood flow significantly increased only in the young subjects. The blood pressure did not change in the young subjects during the foot bath, but the elderly subjects’ pressure dropped. The heart rate increase was shown in the young subjects; however, it was not shown in the elderly subjects. It is thought that an increase of the quantity of fat and decrease of the muscle volume due to aging, a decline in the flexibility of the blood vessel, and attenuation of the sensitivity of the receptor affect the change of these autonomic nerve functions.

Introduction: Prevention of the onset of cardio/cerebrovascular diseases, which represent circulatory system diseases, is now emphasized. It requires ensuring good arterial distensibility, which has been demonstrated to be reduced by life environments such as the lack of exercise or overnutrition but improved by aerobic exercise. Even if implementation of such exercises is possible, it increases the risks of the frail elderly with declined cardiopulmonary function and those with other diseases. This study aimed to focus on plantar flexion and dorsiflexion exercises of the ankles as a type of effective, low-load exercise that can induce dynamic stimulation associated with increased blood flow, using muscle pumping of the triceps surae and footbath, which could potentially increase overall blood flow via hyperthermic action. We then investigate the benefits of the combined effects of these two exercises on arterial distensibility. Methods: We selected 25 physically and mentally healthy adult men and women (17 men and eight women; mean ± SD age, 25.7 ± 3.3 years) as study subjects.   All the 25 subjects performed each of three exercises, namely footbath, ankle exercise, and ankle exercise in footbath, in a sitting position for 15 minutes. Ankle-brachial index (ABI), brachial-ankle pulse wave velocity (PWV), systolic blood pressure, diastolic blood pressure, and heart rate were measured using form PWV/ABI before and after the exercise for the evaluation of arterial distensibility. Results: No significant differences were observed in the PWVs, ABIs, systolic/diastolic blood pressures, and heart rates before and after exercise in the footbath and exercise groups. However, for the footbath exercise group, a significant reduction in PWV was observed from before to after exercise. Discussion: In this study, we focused our attention on the ankle exercise in footbath as a low-load exercise that could improve arterial distensibility. The results indicated a significant reduction in PWV, an index used to show the level of arterial distensibility, only for the footbath exercise group, which performed the combination of ankle exercise and footbath. We can infer that the improvement of arterial distensibility is attributed to the synergistic effect of the muscle pump and hyperthermic actions, which result in further increases and facilitation of cardiac output. Conclusions: This study demonstrated that the ankle exercise in footbath was beneficial for the improvement of arterial distensibility.

  Foot and hand baths are used well in partial baths. It is thought that a warm temperature effect varies according to the size of warmed part in a partial bath, but it is not clear. The purpose of this study is to examine the thermal response on the size of warming area and position during foot and hand baths. The subjects were ten young individuals (all men, average age 23.2 ± 1.3 years), and these individuals partook in a 15-min foot and hand bath. Subjects submerged themselves up to the lower thigh and forearm in a bath at 42°C, in a seated position, rested in the position for five min, and then rested for an additional five min after bathing. There are five styles for baths (single thigh, both thighs, single forearm, both forearms, and no bath). Tympanic temperature was taken with a thermistor, skin blood flow with a laser Doppler flowmeter, and sweat rate with capsule method on the right side. We measured whether the subjects felt warm and comfortable. Tympanic temperature was significantly increased in both the foot and hand baths. Skin blood flow and sweat rate showed no change under any condition. Warm temperature and subjects’ feelings of comfort varied for all bathing conditions, in comparison with no bath. Warm temperature feeling was significant for both the foot and hand baths, in comparison with single baths. The change in these temperatures depended on the surface area warmth in the bath, and the response of the warming at different parts of body was suggested by various factors.

Objectives: Radon is a major feature of radioactive springs. According to an official notification article in Japan, bathing in radioactive springs may alleviate the effects of hyperuricemia (gout), rheumatoid arthritis, and ankylosing spondylitis. This study focuses on changes in the body during the use of a low-temperature sauna at a radioactive hot spring.Methods: In this study, we measured the core temperature, skin temperature, and skin blood flow, and performed an emotional assessment (Mood Check List-Short form.2 (MCL-S.2), Visual Analog Scale (VAS), and Numerical Rating Scale (NRS)) in individuals using a sauna at a radioactive spring. Eight healthy adults participated in this study. All participants partook in two sauna interventions, including one sauna with a high radon concentration (approximately 710 Bq/m3) and one with a low radon concentration (approximately 140 Bq/m3). The indoor temperature and relative humidity of the sauna room were approximately 38°C and 78%, respectively. All participants remained in the sauna room for 40 min, and then rested in an antechamber for 40 min.Results and Discussion: Comparing the MCL-S.2 scores, a significant increase was observed in the pleasantness score in the radon intervention. In addition, after comparing the VAS scores, significant improvements in the feelings of coldness and stress were observed only in the radon intervention. Moreover, skin blood flow increased for a longer duration in the radon sauna intervention than the control intervention. The results suggest that using radon saunas gives rise to positive effects, including reducing coldness, feelings of stress, and promoting blood circulation.

  A person regulates body temperature by outside and inside heat from change of environmental temperature. One of the inside heats includes drinking water. However, the effect of drinking water temperature on body temperature is not clear. The purpose of this study was to examine how water temperature influences the change in body temperature. The study participant were 13 men (average age, 21.3 ± 0.8 years), and they drank water at 3°C, room temperature, and 60°C; in addition, one more task was not to drink water. We measured tympanic temperature using a thermometer, skin blood flow using a laser Doppler flow meter, and sweating rate using the capsule ventilation method. The mean skin temperature was measured at seven body points with a thermistor and calculated. Tympanic temperature of drinking water at 3°C and 60°C was significantly in comparison with other conditions. As for skin blood flow between water temperature at 60°C and 3°C, sweating rate between water temperature at 60°Cand other conditions, and mean skin temperature between water temperature at 3°C and other conditions significant differences were recognized. It is thought that the response to early change to drinking water at different temperatures is by responses of thermo-receptors and subsequently by the thermal energy of the drinking water.