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Table 2 Physiological and perceptual data during fixed intensity running trial

From: Combined active and passive heat exposure induced heat acclimation in a soccer referee before 2014 FIFA World Cup

Measure

Pre (±SD)

Post (±SD)

Statistical significance or standardised difference score [d (90 % confidence interval)]

Probability (% chance) that the difference is less, similar to or greater than smallest worthwhile change

Fixed intensity trial

HR mean entire trial (beats min−1)

149 ± 36

139 ± 36

d = −0.26

[−0.85 to 0.32]

57 % less

HR mean running (beats min−1)

169 ± 17

160 ± 17

d = −0.54

[−1.23 to 0.15]

79 % less

RPE

13 ± 4

13 ± 3

d = −0.07

[−0.69 to 0.54]

41 % similar

\(\dot{{V}}\) O2 (L min−1)

3.32 ± 0.90

2.88 ± 0.88

d = −0.50

[−1.38 to 0.39]

72 % less

RER

1.17 ± 0.09

1.08 ± 0.09

P > 0.05

NA

Mean Tytemp (°C)

37.2 ± 0.6

36.6 ± 0.5

P < 0.05

87 % less

Change in Tytemp (°C)

1.7

1.9

 

40 % greater

Resting mean SKT (°C)

34.7 ± 0

33.7 ± 0.1

 

98 % less

Resting mean core to skin temperature gradient (°C)

1.8

2.2

NA

65 % less

Mean Thermal Perception

7.7 ± 0.7

(“Hot”)

7.4 ± 0.7

(“Warm”)

P < 0.05

58 % less

  1. Data are presented as mean average ± standard deviation (SD) where appropriate