. 2017 Nov 11;48(2):409–430. doi: 10.1007/s40279-017-0808-x

Table 3.

Overview of the studies included in the review

Study	Heat acclimation						Heat stress test
Study	Days	Temperature (°C)	Relative humidity (%)	Intensity	Duration (min)	Exercise modality	Temperature (°C)	Relative humidity (%)	Intensity	Duration (min)
Adam et al. [99]	12	Hot		116 W/m²	120	Load carrying	36	76	116 W/m²	120
Ashley et al. [102]	6	50	20	40% VO_2max	< 120	Walking	50	20	40% VO_2max	< 120
Bean and Eichna [78]	7–21	49	15–22		180	Load carrying	49	15-22		180
Daanen et al. [93]	9 + 3^a	35/41	29/33	45% VO_2max + max	120	Cycling	35	29	45% VO_2max + max	120
Flouris et al. [103]	14	40	20	50% VO_2max	90	Cycling	35	16	300,350,400 W/m²	90
Garrett et al. [34]	5	39.5	60	T _re 38.5	90	Cycling	35	60	40% PPO + max	90
Gill and Sleivert [23]	10	38	70	70% VO_2max	30	Rowing	38	70	70% VO_2max	30
Henschel et al. [98]	2	43-49	20–25	7 times BMR	120	Walking	43–49	20–25	7 times BMR	120
Lee et al. [107]	Permanent	27	81	Passive	Permanent	Passive	24	40	Iontophoresis	5
Lee et al. [108]	Permanent	Hot		Passive	Permanent	Passive	0.1 °C/s		Local T _sk change
Lind and Bass [39]	9	49	17	350 W EE	50–100	Walking	49	17	350 W EE	100
Neal et al. [105]	11	39	56	T _re 38.5	90	Cycling	39	53	35% PPO	60
Pandolf et al. [91]	9	49	20		110	Walking	49	20		110
Pichan et al. [111]	8	45	30	465 W EE	100		45	30	465 W EE	100
Poirier et al. [42]	14	40	20	50% VO_2max	90	Cycling	35	16	300,350,400 W/m²
Saat et al. [101]	14	Hot		60% VO_2max	60	Cycling	31	70	60% VO_2max	60
Stephens and Hoag [110]	10	37–41	35–75	378 W EE	100	Walking	37–41	35–75	378 W EE	100
Weller et al. [75]	10	46	18	T _re 38.5	100	Inclined walking	46	18	T _re 38.5	100
Wijayanto et al. [109]	Permanent	28	80	Passive	Permanent	Passive	28	50	Leg in 42 °C water	60
Williams et al. [92]	4^b	34	80	340 W EE	< 300	Step test	34	80	340 W EE	< 300
Wyndham et al. [41]	12	Hot mine				Work	Hot mine		At rest

BMR basal metabolic rate, EE energy expenditure, PPO peak power output, T _re rectal temperature, max maximal exercise until exhaustion, T _sk mean skin temperature, VO _2max maximal oxygen uptake, WBGT wet bulb globe temperature

^a9 days at 26° C WBGT and 3 days at 32° C WBGT

^b4 days of controlled heat acclimation after 12 days of uncontrolled exposure to a warm environment