Age-Dependent Autonomic Changes Following Immersion in Cool, Neutral, and Warm Water Temperatures
نویسندگان
چکیده
Aquatic immersion has been reported to produce a significant number of physiological changes in blood pressure, heart rate variability (HRV), autonomic nervous system (ANS), and core temperature in young healthy subjects. The purpose of this study was to examine the impact of water immersion in younger and older populations, determining whether there are age related differences for ANS regulation measures in cool, neutral, and warm water. Vitals and ANS measures were collected from two samples representing different age-groups in the general population. It was found that water immersion produced a significant number of important physiologic responses such as decreased blood pressure and increased SVB during the warm water cycle. These changes are important components of ANS bioregulation and clearly seem to be influenced by water temperature during immersion. There was a statistically significant relationship between ANS activity manifested by heart rate variability and water temperatures.
منابع مشابه
Changes in cold-induced vasodilatation, pain and cold sensation in fingers caused by repeated finger cooling in a cool environment.
To examine how repeated cooling of fingers with a rest pause schedule at work affects cold-induced vasodilatation (CIVD), pain and cold sensation in fingers, six healthy men aged 21 to 23 years immersed their left index fingers six times in stirred water at 10 degrees C for 10 minutes. After each cold-water immersion of the fingers, 5-minute rest pause was taken to observe the recovery process ...
متن کاملWARM TO COLD WATER CARBONATE FORMATION DURING THE ORDOVICIAN AND THE JURASSIC: EXAMPLES FROM IRAN, AUSTRALIA, AND ENGLAND
Isotope data from bulk carbonates, micrite, marine calcite cements, non-skeletal grains and brachiopods indicate deposition of a wide spectrum of warm to cold water carbonates during the Ordovician and the Jurassic. This isotopic interpretation is supported by warm to cold climatic models proposed for the Ordovician and the Jurassic. These carbonates formed during the Greenhouse mode (condition...
متن کاملComparion of Standing Posture Control between Pre and Post Head out Water Immersion
The effects of autonomic nervous system by head-out water immersion at thermoneutral temperature will also influence the standing posture control. This study aimed to compare variations in posture control ability after standing from the water immersion at thermoneutral temperatures for healthy young Japanese adults. The healthy male college students (n=5) participated in this study. The body co...
متن کاملPhysiological variations of warm and cool sense with shift of environmental temperature.
In order to obtain control data on the temperature sense (warm and cool threshold values) of fingertips, the relationships between room temperature and either skin temperature, warm threshold or cool threshold of the middle fingertips were investigated in healthy subjects (6 males), using our thermo-esthesiometer. The skin temperature changes in a sigmoidal response with the variation of room t...
متن کاملMetabolic heat production of neonatal calves during hypothermia and recovery.
Metabolic heat production and rectal temperature were measured in 19 newborn calves (41.8 +/- 3.7 kg) during hypothermia and recovery when four different means of assistance were provided. Hypothermia of 30 degrees C rectal temperature was induced by immersion in 18 degrees C water. Calves were rewarmed in a 20 to 25 degree C air environment where thermal assistance was provided by added therma...
متن کامل