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Table 2 Results of lung function and cardiopulmonary exercise testing (CPX)

From: Physical workload and cardiopulmonary parameters in relation to individual capacity of bulk waste workers – a cross-sectional field-study

n = 14

 

mean

SD

median

min

max

FVC

[L]

5.23

0.81

5.04

4.02

6.71

FVC%pred

[%]

101.5

11.05

103

79

115

FEV1

[L]

4.05

0.63

4.06

3.03

5.55

FEV1%pred

[%]

97.2

10.7

94.6

83.0

115.0

Tiffeneau-Index

[%]

78.1

5.12

77.4

70.4

85.0

TLC

[L]

7.11

0.80

7.07

5.71

8.94

TLC%pred

[%]

99.5

10.33

100.0

81.8

116.1

sRtot

[kPa*s]

0.67

0.26

0.62

0.36

1.08

Ttest phase

[min:sec]

09:46

01:45

09:37

06:09

12:34

Pmax

[W]

219

43.6

217

138

280

Pmax%Pmax,pred

[%]

104

14.4

101

74

127

Pmax/BW

[W/kg]

2.36

0.47

2.41

1.18

3.18

\({\overset{\boldsymbol.}{\mathbf V}\mathbf O}_{\mathbf2\boldsymbol,\mathbf m\mathbf a\mathbf x}\)

[ml/min]

2606

463

2570

1818

3260

\({\overset{\boldsymbol.}{\mathbf V}\mathbf O}_{\mathbf2\boldsymbol,\mathbf m\mathbf a\mathbf x}\boldsymbol\%{\overset{\boldsymbol.}{\mathbf V}\mathbf O}_{\mathbf2\boldsymbol,\mathbf m\mathbf a\mathbf x\boldsymbol,\mathbf p\mathbf r\mathbf e\mathbf d}\)

[%]

90.5

13

91.3

57.2

109

\({\overset{\boldsymbol.}{\mathbf V}\mathbf O}_{\mathbf2\boldsymbol,\mathbf m\mathbf a\mathbf x}\boldsymbol/\mathbf{BW}\)

[ml/kg]

28

4.6

27

20.8

36.3

RERmax

 

1.5

0.16

1.51

1.19

1.82

PVT1

[W]

136

39.3

123

82

210

PVT1%Pmax

[%]

61.7

10.5

60.3

43.2

81.5

\({\overset{\boldsymbol.}{\mathbf V}\mathbf O}_{\mathbf2\boldsymbol,\mathbf V\mathbf T\mathbf1}\)

[ml/min]

1758

409

1680

991

2517

\({\overset{\boldsymbol.}{\mathbf V}\mathbf O}_{\mathbf2\boldsymbol,\mathbf V\mathbf T\mathbf1}\boldsymbol\%{\overset{\boldsymbol.}{\mathbf V}\mathbf O}_{\mathbf2\boldsymbol,\mathbf m\mathbf a\mathbf x\boldsymbol,\mathbf p\mathbf r\mathbf e\mathbf d}\)

[%]

61.2

14.1

60.7

41.0

88.7

HRrest

[bpm]

65.9

10.1

67

52

82

HRmax

[bpm]

161

13,1

162

138

182

HRmax%HRmax,pred

[%]

89.8

5.92

89

80

99

HRVT1

[bpm]

120

9.31

119

106

139

HRVT1%HRmax

[%]

74.34

7.07

73.8

60.9

89.3

r

 

0.95

0.04

0.95

0.83

0.99

  1. FVC Forced vital capacity, FVC%pred % of the predicted FVC, FEV1 Forced expiratory capacity in one second, FEV1%pred % of the predicted FEV1, Tiffeneau-Index (FEV1/FVC) × 100%, TLC Total lung capacity, TLC%pred % of the predicted TLC, sRtot Total specific airway Resistance, Ttest phase Duration of pedaling with increasing load during CPX, P Power output, Pmax Maximum power output, Pmax%Pmax,pred Pmax relative to predicted values of maximum power output (Pmax,pred), Pmax/BW Pmax relative to the body weight (BW), \({\overset.VO}_{2,max}\) Maximum oxygen consumption, \({\overset{\cdot}{V}O}_{\textit 2,\textit{max}}\%{\overset{\cdot}VO}_{\textit 2,\textit{max,pred}}\;{\overset.{\text V}\mathrm O}_{2,\max}\)  relative to predicted values of maximum oxygen consumption \(({\overset.{\mathrm V}\mathrm O}_{2,\max,\mathrm{pred}})\), \({\overset.VO}_{2,max}/BW\) \({\overset.VO}_{2,max}\) relative to the BW, RERmax Maximum respiratory exchange rate, PVT1 Power output at the ventilatory threshold 1 (VT1), PVT1%Pmax PVT1 relative to Pmax, \({\overset.VO}_{2,VT1}\) Oxygen consumption at VT1 \({\overset{\cdot}{\textit V}\textit{O}}_{\textit 2,\textit V\textit T\textit 1}\%{\overset{\cdot}{\textit V}\textit O}_{\textit 2,\textit{max,pred}}\;{\overset.{\text V}\text O}_{2,\text{VT}1}\)  relative to \({\overset.{\mathrm V}\mathrm O}_{2,\max,\mathrm{pred}}\) as a marker for endurance capacity according to [32], HRrest resting heart rate, HRmax Maximum heart rate, HRmax%HRmax,pred HRmax relative to predicted values of maximum heart rate (HRmax,pred), HRVT1 Heart rate at VT1, HRVT1%HRmax HRVT1 relative to HRmax, SD Standard deviation
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Journal of Occupational Medicine and Toxicology

ISSN: 1745-6673