PMID: 8954287Jan 1, 1996Paper

Thermoregulatory responses of circum-pubertal children

European Journal of Applied Physiology and Occupational Physiology
G S Anderson, I B Mekjavic

Abstract

Passive temperature lability of nine circum-pubertal children [11.4 (1.2) years] was compared to that of nine young adult males [26.6 (5.2) years]. Each subject completed a 20-min period of exercise, followed immediately by post-exercise immersion in water at 28 degrees C. The aim of the exercise protocol was to induce a steady rate of sweating (Esw) while the postexercise immersion period induced cooling of the core region (tympanic temperature: Tty). The Tty values (relative to rest, delta Tty) at which sweating abated and at which shivering commenced were defined as the thresholds for the cessation of sweating and onset of shivering, respectively. While there was no significant difference between the delta Tty sweating thresholds, the onset of shivering, as reflected in the oxygen uptake (VO2) response, occurred at significantly higher (P < 0.05) delta Tty values in the children [mean (SD): - 0.07 (0.07) degrees C] than in the adults [ -0.22 (0.10) degrees C]. The slope of the Esw/delta Tty relationship was found to be significantly lower in the children (z = -5.64; P < 0.05), while the slopes of the VO2/delta Tty relationship were not significantly different (z = -0.84; P > 0.05). Skin blood perfusion was measured at the fo...Continue Reading

References

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Citations

Jun 23, 2009·British Journal of Anaesthesia·R StangerP Armstrong
Jan 7, 2021·The Journal of School Health·Taylor GolshanMichael Shterenshis
Aug 7, 2021·Life·Igor B MekjavicUrša Ciuha

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