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. Author manuscript; available in PMC: 2023 May 18.

Published in final edited form as: J Exerc Nutr. 2018 Jan 1;1(1):1.

Table III.

Physiological and subjective variables measured during heat stress tests with personal protective clothing.

	Pre- HAT					Post- HAT
Variables	0 min	15 min	30 min	45 min	60 min	0 min	15 min	30 min	45 min	60 min
Tre (°C)	37.0±0.2	37.1±0.3	37.4±0.5^*	38.1±0.3^*	38.6±0.5^*	36.8±0.2	36.9±0.1^*	37.3±0.2^*	37.9±0.3^*	38.4±0.4^*
Tsk (°C)	32.5±0.7	34.6±0.7^*	35.7±0.4^*	36.4±0.4^*	37.1±0.4^*	32.7±0.7	34.6±0.7^*	35.6±0.4^*	36.3±0.4^*	37.0±0.4^*
Tb (°C)	35.4±0.3	36.2±0.4^*	37.0±0.0^*	37.4±0.5^*	38.1±0.3^*	35.3±0.3	36.1±0.3^*	36.7±0.2^*	37.3±0.3^*	37.9±0.4^*
HR (bpm)	76.7±9.2	122.1±16.7^*	135.7±15.6^*	150.4±14.5 ^*	164.6±12.7^*	73.8±8.6	111.7±19.7^*	124.3±21.3^*	140.0±22.0^*	158.0±20.4^*
VO₂ (ml/kg/min)	5.6±0.7	18.9±1.7^*	20.5±1.6^*	22.0±2.2^*	22.5±2.6^*	5.6±0.6	16.9±4.6^*	18.9±2.2^*	20.5±2.1^*	20.7±1.6^*
RPE	6.0±0.0	8.9±1.2^*	10.4±1.3^*	12.1±1.8^*	13.8±2.0^*	6.0±0.0	8.8±1.1^*	10.4±1.4^*	12.0±1.0^*	13.8±2.4^*
HP	2.2±0.7	3.9±0.9^*	4.7±0.7^*	5.4±0.7^*	5.7±1.0^*	1.9±0.6	3.4±0.7^*,^†	4.3±0.5^*	4.9±0.9^*,^†	5.3±1.0^*
USG (g·mL-1)	1.016±0.010				1.012±0.012	1.021±0.007				1.012±0.009
Na⁺ (mmol/L)	141.8±1.4				143.1±2.1^*	141.9±0.9				143.7±1.7^*
K⁺ (mmol/L)	4.2±0.3				4.6±0.3^*	4.2±0.3				4.5±0.2^*
Cl⁻ (mmol/L)	102.4±3.0				104.9±2.9^*	102.4±1.2				105.1±1.8^*
Osmolality (mOsmol/kgH₂O)	296.3±4.8				299.6±4.1	298.2±5.8				300.1±3.3
Weight Loss (kg)					1.45±0.3					1.75±0.4^†

^*

significantly different from 0 min, p<0.05

^†

significantly different from Pre-Heat Acclimation Test