The time of onset and magnitude of cold-induced vasodilatation (CIVD) in six older men (62-70 years) were compared with those of seven younger men (20-29 years) by using a modified local cold tolerance test. This test consisted of a 10-min immersion of the left middle finger in cold water at 10 degrees C, and was substituted for a conventional test (30-min immersion in ice water at 0 degrees C)...

Measurements of changes in finger skin blood flow with laser Doppler perfusion imaging (LDPI) in response to cold provocation test (10 degrees C, 10 min) were performed in 12 men suffering from vibration induced white finger (VWF) and 13 exposed controls. The mean perfusion values in both groups reduced markedly as a result of immersion of the hand in cold water. In the controls, however, the m...

cold-water immersion (14uC) recovery intervention on repeated cycling performance in the heat. min constant-paced (254 (22) W) cycling session followed by a 4-km time trial in hot conditions (35uC, 40% relative humidity). The two bouts were separated by either 15 min of seated recovery in the heat (control) or the same condition with 5-min cold-water immersion (5th–10th minute), using a counter...

The aim of this study was to determine the effect of 3 post-match recovery modalities on physical performance, physiological measures, and players' perceptions of recovery after 90-minute soccer match play. On separate days, 28 young (age: 14.3 +/- 0.7 years) soccer players played 3 soccer matches each randomly followed by 1 of 3 recovery modalities: (a) CONT-cold (12 degrees C) water immersion...

INTRODUCTION Accidental immersion in cold water is a risk factor for many occupations. Habituation to cold-water immersion (CWI) is one practical means of reducing the cold shock response (CSR) on immersion. We investigated whether repeated thermoneutral water immersion (TWI) induced a perceptual habituation (i.e., could lessen perceived threat and anxiety) and consequently reduce the CSR on su...

immersion in cold water causes bradycardia.4 These effects may occur during burial in an avalanche of snow. Hypothermia often.occurs in burial in an avalanche. The face is often the only area unprotected by clothing and in direct contact with the snow, which may be important as it is the face that triggers the diving reflex. This is unlike immersion in cold water, when cooling is more uniform. ...

Recently, a marked increase in the number of acute myocardial infarction cases during winter has been reported. Approximately 53% more cases were reported in winter than during summer [1]. The abrupt rupture of atherosclerotic plaques that occurs during cold exposure has been associated with an increase in sympathetic tone that causes increased blood pressure, heart rate and cardiac workload [2...

INTRODUCTION A significant number of military personnel suffer from exertional heat illness, with some extreme cases resulting in death. These illnesses may occur without warning, they are often characterised by a rapid onset and can occur even in experienced personnel. Various field treatments for hyperthermia have been developed, and one of particular interest is the use cold-water immersion....