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Table 1 Anthropometrics, Baseline data and pre and post exercise values of physiologic parameters, body- and garment weight and perceptual data. Data are presented as mean values and standard deviations. VO2 max = maximal oxygen consumption; RCP = respiratory compensation point; bpm = beats per minute; kg = kilogram; cm = centimeter; ml/kg/min = milliliter per kilogram bodyweight per minute

From: Do cool shirts make a difference? The effects of upper body garments on health, fluid balance and performance during exercise in the heat

N = 32

Cooling vest

Synthetic fiber shirt

Cotton shirt

Anthropometric Data

Sex/gender

male = 6, female = 5, divers = 0

male = 6, female = 5, divers = 0

male = 5, female = 5, divers = 0

Age [years]

24.3; 2.9

25.1; 4.4

24.7; 4.1

Body height [cm]

175; 9

172; 9

171; 10

Bodyweight [kg]

74.2; 13.8

69.0; 14.8

67.4; 10.9

Bodyfat [%]

25.0; 7.1

25.7; 10.0

26.3; 11.4

Baseline examination parameters

Maximal heart rate [bpm]

188; 7

196; 12

190; 10

RCP heart rate [bpm]

170; 13

173; 14

174; 11

VO2 max [ml/kg/min]

48.6; 7.8

48.3; 11.1

49.4; 8.5

Oxygen consumption 80% RCP [ml/kg/min]

32.0; 4.2

31.6; 6.6

33.3; 4.8

Resistance 80% RCP [W]

189; 34

166; 58

185; 60

Physiologic Parameter prior to exercise (Pre) and at the point of exercise termination (Post)

 

Cooling vest

Synthetic fiber shirt

Cotton shirt

 

Pre

Post

Pre

Post

Pre

Post

Heartrate [bpm]

80; 16

182; 11

90; 11

177; 20

84; 12

182; 13

Oxygen consumption [ml/kg/min]

7.0; 1.9

41.2; 7.0

6.2; 2.2

39.2; 8.7

6.0; 2.4

43.1; 6.6

Core temperature

[° Celsius]

36.6; 0.3

37.9; 0.5

37.0; 0.3

37.9; 0.6

36.9; 0.4

38.0; 0.3

Weight prior to exercise (Pre) and at the point of exercise termination (Post)

Body weight [kg]

73.8; 14.2

73.2; 14.0

68.3; 14.8

67.6; 14.5

66.9; 11.0

66.3; 10.9

Garment weight [g]

842; 291

821; 288

297; 86

358; 154

289; 63

350; 87

Perceptual data prior to exercise (Pre) and at the point of exercise termination (Post)

Skin Wettedness

0.1; 0.3

2.4; 0.7

0; 0

2.4; 0.5

0.3; 0.5

2.3; 0.8

Clothing Humidity

1.3; 0.6

2.4; 0.9

0.1; 0.3

2.1; 0.9

0.1; 0.3

2.5; 0.7

Sweating Sensation

0.2; 0.4

2.7; 0.5

0.2; 0.4

2.9; 0.3

0.2; 0.4

2.6; 0.7

Thermal Sensation

4.7; 1.9

7.9; 1.1

6.27; 0.6

8.6; 0.5

6.6; 0.5

8.2; 1.1

Feeling Scale

4.2; 1.3

-2.6; 2.0

3.2; 1.0

-1.3; 2.3

3.3; 1.6

-2.6; 2.0

Rate of perceived exertion (RPE)

-

18.8; 1.3

-

17.8; 1.9

-

18.2; 2.1