Cardiovascular Response during Thermal Stress: Comparison with Whole-Body Immersion and Half-Body Immersion

Over the last decade, the use of vibration-supported therapeutic measures has been increased. There are many devices in the market that generate whole body vibration, but they can be divided into three groups due to the frequency, amplitude and direction of the vibrations being applied to the body. The aim of the work is to analyze the results of the most important works discussing the use and effectiveness of the therapeutic effect of vibrations on the human body. The studies are indicative of favourable changes to the symptoms of neurodegenerative diseases, neurological dysfunctions, incomplete spinal cord injury, sarcopenia and senile age disorders, osteoporosis, sports injuries. The use of whole body vibration does not result in significant changes to the hemodynamic function during therapy, although appropriate stimulation parameters may induce sufficient cardiovascular response to improve overall physical fitness. In the physiotherapy procedure, the whole body vibration is another means of increasing the effect of the therapy used.

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Intermittent whole-body cold immersion induces similar thermal stress but different motor and cognitive responses between males and females

Cryobiology ◽

10.1016/j.cryobiol.2014.08.007 ◽

2014 ◽

Vol 69 (2) ◽

pp. 323-332 ◽

Cited By ~ 12

Author(s):

Rima Solianik ◽

Albertas Skurvydas ◽

Dalia Mickevičienė ◽

Marius Brazaitis

Keyword(s):

Thermal Stress ◽

Whole Body ◽

Cognitive Responses ◽

Males And Females ◽

Cold Immersion

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Cardiovascular response to acute thermal stress (hot dry environment) in unacclimatized normal subjects

American Heart Journal ◽

10.1016/0002-8703(68)90262-7 ◽

1968 ◽

Vol 76 (6) ◽

pp. 769-774 ◽

Cited By ~ 18

Author(s):

Anthony N. Damato ◽

Sun H. Lau ◽

Emanuel Stein ◽

Jacob I. Haft ◽

Bernard Kosowsky ◽

...

Keyword(s):

Thermal Stress ◽

Cardiovascular Response ◽

Normal Subjects

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Cardiovascular effects of whole-body heating in spontaneously hypertensive rats

Journal of Applied Physiology ◽

10.1152/jappl.1978.45.4.521 ◽

1978 ◽

Vol 45 (4) ◽

pp. 521-527 ◽

Cited By ~ 11

Author(s):

G. Wright ◽

E. Knecht ◽

M. Toraason

Keyword(s):

Elevated Temperatures ◽

Cardiovascular Response ◽

Blood Pressure Response ◽

Cardiovascular Effects ◽

Whole Body ◽

Initial Increase ◽

Hypertensive Rats ◽

Spontaneously Hypertensive ◽

Arterial Blood ◽

Severe Hypotension

The cardiovascular response to severe whole-body heating was examined in anesthetized spontaneously hypertensive (SH) (mean BP = 140 Torr) and normotensive (N) rats (mean BP = 96 Torr). Elevation of colonic temperature to 44 degrees C resulted in an initial increase in arterial pressure (mean BP: SH = 199 Torr, N = 124 Torr) with a subsequent severe hypotension. There was little evidence to suggest that this collapse in systemic pressure was related to a direct heat impairment of cardiac function. It was more likely the result of a progressive venodilation which produced venous pooling and decreased venous return. The arterial blood pressure response to exogenous catecholamine challenge decreased at elevated temperatures. This suggests that there was a deterioration of the vasoconstrictor response and indicated a possible effect of heat at the receptor or effector level. There were significant differences between the responses of normotensive and hypertensive rats to whole-body heating suggesting an enhanced cardiovascular sensitivity in hypertensive rats that may partially explain earlier reports of inferior thermoregulation and heat intolerance in these animals.

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Effects of whole-body and local thermal stress on hydrostatic volume changes in the human calf

European Journal of Applied Physiology ◽

10.1007/s00421-002-0688-z ◽

2002 ◽

Vol 88 (1-2) ◽

pp. 61-66 ◽

Cited By ~ 8

Author(s):

Fumio Yamazaki ◽

Chitose Okuno ◽

Shoko Nagamatsu ◽

Ryoko Sone

Keyword(s):

Thermal Stress ◽

Whole Body ◽

Volume Changes ◽

Human Calf

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Modulation of arterial baroreflex control of heart rate by skin cooling and heating in humans

Journal of Applied Physiology ◽

10.1152/jappl.2000.88.2.393 ◽

2000 ◽

Vol 88 (2) ◽

pp. 393-400 ◽

Cited By ~ 43

Author(s):

Fumio Yamazaki ◽

Ryoko Sone

Keyword(s):

Heart Rate ◽

Thermal Stress ◽

Arterial Pressure ◽

Baroreflex Sensitivity ◽

Whole Body ◽

Arterial Baroreflex ◽

Carotid Baroreflex ◽

Skin Cooling ◽

Neck Pressure ◽

Arterial Baroreflex Sensitivity

The purpose of this study was to examine the effects of skin cooling and heating on the heart rate (HR) control by the arterial baroreflex in humans. The subjects were 15 healthy men who underwent whole body thermal stress (esophageal temperatures, ∼36.8 and ∼37.0°C; mean skin temperatures, ∼26.4 and ∼37.7°C, in skin cooling and heating, respectively) produced by a cool or hot water-perfused suit during supine rest. The overall arterial baroreflex sensitivity in the HR control was calculated from spontaneous changes in beat-to-beat arterial pressure and HR during normothermic control and thermal stress periods. The carotid baroreflex sensitivity was evaluated from the maximum slope of the HR response to changes in carotid distending pressure, calculated as mean arterial pressure minus neck pressure. The overall arterial baroreflex sensitivity at existing arterial pressure increased during cooling (−1.32 ± 0.25 vs. −2.13 ± 0.20 beats ⋅ min− 1 ⋅ mmHg− 1 in the control and cooling periods, respectively, P < 0.05), whereas it did not change significantly during heating (−1.39 ± 0.23 vs. −1.40 ± 0.15 beats ⋅ min− 1 ⋅ mmHg− 1in the control and heating periods, respectively). Neither the cool nor heat loadings altered the carotid baroreflex sensitivity in the HR control. These results suggest that the sensitivity of HR control by the extracarotid (presumably aortic) baroreflex was augumented by whole body skin cooling, whereas the sensitivities of HR control by arterial baroreflex remain unchanged during mild whole body heating in humans.

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