Physiological and psychological thermal response to local cooling of human body

Tamura, Teruko; An, Mi Young

doi:10.1016/0306-4565(93)90055-x

Cited by 5 publications

(1 citation statement)

References 4 publications

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“…Given that the participant populations between our present study and Kim’s study are similar, methodological differences, such as cooling sites (foot vs. knee), and cooling methods (immersion in 10 °C water for 2.5 min vs. plastic bags filled with crushed ice for 20 min), may contribute to the discrepancy. For instance, it has been demonstrated that the sensitivity of temperature sensation by cooling differs among body regions [ 26 ]. Due to the fact that the foot possesses abundant arteriovenous anastomoses [ 27 ], the heat removal and cold sensation from the foot may be higher than that from the knee, potentially causing a higher afferent stimulus [ 28 ].…”

Section: Discussionmentioning

confidence: 99%

Acute Effects of Intermittent Foot Cooling on 1 RM Leg Press Strength in Resistance-Trained Men: A Pilot Study

Lee

Wang

et al. 2021

IJERPH

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Inter-set peripheral cooling can improve high-intensity resistance exercise performance. However, whether foot cooling (FC) would increase 1 repetition maximum (RM) lower-limb strength is unclear. This study investigated the effect of intermittent FC on 1 RM leg press strength. Ten recreational male lifters performed three attempts of 1 RM leg press with FC or non-cooling (NC) in a repeated-measures crossover design separated by 5 days. FC was applied by foot immersion in 10 °C water for 2.5 min before each attempt. During the 1 RM test, various physiological measures were recorded. The results showed that FC elicited higher 1 RM leg press strength (Δ [95% CI]; Cohen's d effect size [ES]; 13.6 [7.6–19.5] kg; ES = 1.631) and electromyography values in vastus lateralis (57.7 [ 8.1–107.4] μV; ES = 0.831) and gastrocnemius (15.1 [-3.1–33.2] μV; ES = 0.593) than in NC. Higher arousal levels (felt arousal scale) were found in FC (0.6 [0.1–1.2]; ES = 0.457) than in NC. In conclusion, the preliminary findings, although limited, suggest intermittent FC has a potential ergogenic role for recreational athletes to enhance maximal lower-limb strength and may partly benefit strength-based competition events.

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Section: Discussionmentioning

confidence: 99%

Acute Effects of Intermittent Foot Cooling on 1 RM Leg Press Strength in Resistance-Trained Men: A Pilot Study

Lee

Wang

et al. 2021

IJERPH

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Effects of local restriction of evaporation and moderate local ventilation on thermoregulatory responses in exercising humans

Desruelle

Bothorel

Hoeft

et al. 1996

Europ. J. Appl. Physiol.

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Ten healthy young men participated in two series of three trials: series 1 (C1) with, or without, local restriction of evaporation (either on the trunk or on the legs) and series 2 (C2) with, or without, local moderate nitrogen ventilation (40 l.min-1) under an impermeable garment (trunk or leg ventilation). After 60-min rest in a thermoneutral environment, the subjects exercised in a warm environment [30 degrees C, 47% relative humidity (rh) during C1 and 29% rh during C2] on a cycle ergometer for 60 min at 70 W during C1 or at 60 W during C2. During C1, local covering with plastic foil did not increase internal temperature, but increased the mean skin temperature with a higher effect in the case of leg restriction. The trunk skin temperature was affected by the leg covering while the leg skin temperature was not changed by the trunk covering. Only the local sweat rate of the trunk was increased by the two restriction conditions. During C2, internal temperature was decreased by local ventilation while mean skin temperature was reduced only by trunk ventilation. The local ventilation affected only trunk skin temperature with a greater decrease during trunk ventilation. Trunk ventilation did not influence the skin temperature of the legs while ventilation of the legs decreased trunk skin temperature. In addition, leg ventilation decreased the sweat rate of the legs. The impermeable suit worn during C2 led to a greater physiological strain compared to the plastic film worn during C1 even with local ventilation under the impermeable garment. As expected, limiting sweat evaporation led to an increase in physiological strain. Microclimate ventilation at a rate of 40 l.min-1 was not sufficient to allow total heat dissipation but allowed 60-min exercise in a warm environment to be completed without excessive heat accumulation. It would appear that ventilation of the trunk locally was the best solution because of the smaller increase in skin temperature and higher sweating capacity of the trunk.

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Room air temperature affects occupants’ physiology, perceptions and mental alertness

Tham

Willem

2010

Building and Environment

111

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Physiological and psychological thermal response to local cooling of human body

Cited by 5 publications

References 4 publications

Acute Effects of Intermittent Foot Cooling on 1 RM Leg Press Strength in Resistance-Trained Men: A Pilot Study

Acute Effects of Intermittent Foot Cooling on 1 RM Leg Press Strength in Resistance-Trained Men: A Pilot Study

Effects of local restriction of evaporation and moderate local ventilation on thermoregulatory responses in exercising humans

Room air temperature affects occupants’ physiology, perceptions and mental alertness

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