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Background: Aging affects thermoregulation and can potentially cause cardiovascular changes during bathing in the elderly, possibly leading to accidents and, in worst cases, drowning. However, adequate data on this subject are lacking. Therefore, the purpose of this study was to clarify the effect of aging on thermoregulatory and cardiovascular changes during bathing in the older versus younger adults the relationship between body temperature and thermoregulatory and cardiovascular changes. Methods: Ten young (mean age: 20.4 years) and 10 elderly (mean age: 69.7 years) participants were asked to bathe for 15 min using water at 41°C. Tympanic temperature (Tty), skin blood flow (SkBF), sweating rate (SR), blood pressure, heart rate (HR), and double product (DP) were measured. In addition, we measured subjective psychological changes during bathing. Results: The results showed significant changes in SkBF, SR, and HR in the young participants rather than in the elderly participants. However, in the elderly participants, significant change was noted in systolic blood pressure (SBP). Conclusion: These results demonstrate changes in thermal adaptation and SBP owing to structural and functional progression due to aging.
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Background: Aging affects thermoregulation and can potentially cause cardiovascular changes during bathing in the elderly, possibly leading to accidents and, in worst cases, drowning. However, adequate data on this subject are lacking. Therefore, the purpose of this study was to clarify the effect of aging on thermoregulatory and cardiovascular changes during bathing in the older versus younger adults the relationship between body temperature and thermoregulatory and cardiovascular changes. Methods: Ten young (mean age: 20.4 years) and 10 elderly (mean age: 69.7 years) participants were asked to bathe for 15 min using water at 41°C. Tympanic temperature (Tty), skin blood flow (SkBF), sweating rate (SR), blood pressure, heart rate (HR), and double product (DP) were measured. In addition, we measured subjective psychological changes during bathing. Results: The results showed significant changes in SkBF, SR, and HR in the young participants rather than in the elderly participants. However, in the elderly participants, significant change was noted in systolic blood pressure (SBP). Conclusion: These results demonstrate changes in thermal adaptation and SBP owing to structural and functional progression due to aging.
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Background: This study aimed to clarify the effects of bathing on cardiovascular and psychological responses during winter and summer, focusing on three different time points (immediately after entering the bathtub, during bathing, and immediately after leaving the bathtub). Methods: Ten young (29.6 ± 1.5 years) individuals were asked to bathe for 20 min with 40℃ hot water in summer and with 42℃ hot water in winter. The room temperature and humidity in winter were 20.1℃ and 56.7%, while those in summer were 27.0℃ and 58.3%, respectively. Tympanic temperature (Tty) was measured using a thermistor thermometer; systolic blood pressure (SBP) and diastolic blood pressures (DBP) and heart rate (HR) were measured using an auto-sphygmomanometer, and double product (DP) was calculated using the value of HR multiplied by SBP value. Subjective thermal and comfortable sensations were evaluated using a seven-point rating scale. Results: Results showed a significant increases in SBP values in both seasons immediately after bathing. In winter, DP increased significantly after bathing. Meanwhile, no significant differences were observed in all parameters immediately after bathing between winter and summer. On the contraly, significant differences were observed in Tty, HR, and DP value between winter and summer during bathing. HR and DP values in winter were significantly lower than those in summer immediately after leaving the bathtub. A relationship between thermal sensation and comfortable sensation was observed in both seasons, but the strength of the relationship was more relevant in summer than in winter. Conclusion: The effects of bathing in 42℃ hot water on the cardiovascular system in winter are greater than those in 40℃ hot water in summer. The high temperature of the bath water may not produce as much discomfort during winter than that during summer, therefore bathing time may be longer.
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Background: This study aimed to clarify the effects of bathing on cardiovascular and psychological responses during winter and summer, focusing on three different time points (immediately after entering the bathtub, during bathing, and immediately after leaving the bathtub). Methods: Ten young (29.6±1.5 years) individuals were asked to bathe for 20 min with 40°C hot water in summer and with 42°C hot water in winter. The room temperature and humidity in winter were 20.1°C and 56.7%, while those in summer were 27.0°C and 58.3%, respectively. Tympanic temperature (Tty) was measured using a thermistor thermometer; systolic blood pressure (SBP) and diastolic blood pressures (DBP) and heart rate (HR) were measured using an auto-sphygmomanometer, and double product (DP) was calculated using the value of HR multiplied by SBP value. Subjective thermal and comfortable sensations were evaluated using a seven-point rating scale. Results: Results showed a significant increases in SBP values in both seasons immediately after bathing. In winter, DP increased significantly after bathing. Meanwhile, no significant differences were observed in all parameters immediately after bathing between winter and summer. On the contraly, significant differences were observed in Tty, HR, and DP value between winter and summer during bathing. HR and DP values in winter were significantly lower than those in summer immediately after leaving the bathtub. A relationship between thermal sensation and comfortable sensation was observed in both seasons, but the strength of the relationship was more relevant in summer than in winter. Conclusion: The effects of bathing in 42°C hot water on the cardiovascular system in winter are greater than those in 40°C hot water in summer. The high temperature of the bath water may not produce as much discomfort during winter than that during summer, therefore bathing time may be longer.
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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.
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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.
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【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.
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<p> 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.</p><p> 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.</p><p> 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. </p><p> These findings suggest that the walking programs are beneficial human body thorough, for example, enhanced relaxation.</p>
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<p><b>Objectives</b>: 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.</p><p><b>Methods</b>: 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/m<sup>3</sup>) and one with a low radon concentration (approximately 140 Bq/m<sup>3</sup>). 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.</p><p><b>Results and Discussion</b>: 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.</p>
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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.
RESUMO
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.
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<p><b>Objectives:</b> Bathing in a bathtub made of hinoki cypress may promote relaxation. This study focuses on changes in autonomic nervous system function, and emotional assessments of individuals who bathed in a hinoki cypress bathtub.</p><p><b>Methods:</b> All 16 study participants bathed twice, as interventions in this study. The baths consisted of bathing in a hinoki cypress bathtub and in a modular bathtub as the control experiment. During the study, participants wore a holter monitor. Before and after bathing, saliva samples were collected for cortisol measurement, and participants underwent a subjective emotional assessment, the Mood Check List-Short Form.2 (MCL-S.2). After bathing, an additional subjective emotional assessment, the Visual Analog Scale (VAS), was performed.</p><p><b>Results and Discussion:</b> The emotional assessments in the MCL-S.2 indicated a significant increase in positive emotional scores (“pleasantness”) after bathing in a hinoki cypress bathtub. The VAS scores showed a significant decrease in the “feeling of fatigue” after bathing in a hinoki cypress bathtub, compared to bathing in a modular bathtub. These results suggest that study participants who bathed in a hinoki cypress bathtub experienced positive effects, and decreased feelings of fatigue. The salivary cortisol concentration decreased significantly after bathing in the hinoki cypress bathtub and in the modular bathtub. For both the hinoki cypress bathtub and the modular bathtub, the high frequency (√HF) values collected with the holter monitor after bathing, were higher than the √HF values collected prior to bathing. The results suggest that bathing in water temperatures of 38-39°C for 15 min enhances relaxation, and has a positive effect on the human body.</p>
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<p><b>Objectives:</b> Bathing in a bathtub made of hinoki cypress may promote relaxation. This study focuses on changes in autonomic nervous system function, and emotional assessments of individuals who bathed in a hinoki cypress bathtub.</p><p><b>Methods:</b> All 16 study participants bathed twice, as interventions in this study. The baths consisted of bathing in a hinoki cypress bathtub and in a modular bathtub as the control experiment. During the study, participants wore a holter monitor. Before and after bathing, saliva samples were collected for cortisol measurement, and participants underwent a subjective emotional assessment, the Mood Check List-Short Form.2 (MCL-S.2). After bathing, an additional subjective emotional assessment, the Visual Analog Scale (VAS), was performed.</p><p><b>Results and Discussion:</b> The emotional assessments in the MCL-S.2 indicated a significant increase in positive emotional scores (“pleasantness”) after bathing in a hinoki cypress bathtub. The VAS scores showed a significant decrease in the “feeling of fatigue” after bathing in a hinoki cypress bathtub, compared to bathing in a modular bathtub. These results suggest that study participants who bathed in a hinoki cypress bathtub experienced positive effects, and decreased feelings of fatigue. The salivary cortisol concentration decreased significantly after bathing in the hinoki cypress bathtub and in the modular bathtub. For both the hinoki cypress bathtub and the modular bathtub, the high frequency (√HF) values collected with the holter monitor after bathing, were higher than the √HF values collected prior to bathing. The results suggest that bathing in water temperatures of 38-39°C for 15 min enhances relaxation, and has a positive effect on the human body.</p>
RESUMO
<p> 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.</p><p> 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.</p><p> 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. </p><p> These findings suggest that the walking programs are beneficial human body thorough, for example, enhanced relaxation.</p>
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<p><b>Obj</b><b>ectives:</b> 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.</p><p><b>Methods:</b> 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 710Bq/m<sup>3</sup>) and one with a low radon concentration (approximately 140Bq/m<sup>3</sup>). 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.</p><p><b>Results and Discussion:</b> 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.</p>
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Objectives: Bathing in a bathtub made of hinoki cypress may promote relaxation. This study focuses on changes in autonomic nervous system function, and emotional assessments of individuals who bathed in a hinoki cypress bathtub.Methods: All 16 study participants bathed twice, as interventions in this study. The baths consisted of bathing in a hinoki cypress bathtub and in a modular bathtub as the control experiment. During the study, participants wore a holter monitor. Before and after bathing, saliva samples were collected for cortisol measurement, and participants underwent a subjective emotional assessment, the Mood Check List-Short Form.2 (MCL-S.2). After bathing, an additional subjective emotional assessment, the Visual Analog Scale (VAS), was performed.Results and Discussion: The emotional assessments in the MCL-S.2 indicated a significant increase in positive emotional scores (“pleasantness”) after bathing in a hinoki cypress bathtub. The VAS scores showed a significant decrease in the “feeling of fatigue” after bathing in a hinoki cypress bathtub, compared to bathing in a modular bathtub. These results suggest that study participants who bathed in a hinoki cypress bathtub experienced positive effects, and decreased feelings of fatigue. The salivary cortisol concentration decreased significantly after bathing in the hinoki cypress bathtub and in the modular bathtub. For both the hinoki cypress bathtub and the modular bathtub, the high frequency (√HF) values collected with the holter monitor after bathing, were higher than the √HF values collected prior to bathing. The results suggest that bathing in water temperatures of 38-39°C for 15 min enhances relaxation, and has a positive effect on the human body.
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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.
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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.
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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.
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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.