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Table 3 Maximal inspiratory and expiratory static pressure at different lung volumes for the male subjects.

From: Maximum static inspiratory and expiratory pressures with different lung volumes

Expiratory

Pressure

Inspiratory

Pressure

Volume (%VC)

Positive Pressure (cmH2O)

Pe/Pmax

Volume (%VC)

Negative Pressure (cmH2O)

Pi/Pmax

8.2 ± 1.0

63.2 ± 32.6

0.6196

13.5 ± 2.0

96.7 ± 45.5

0.9480

17.2 ± 1.3

75.3 ± 39.0

0.7382

24.2 ± 2.8

95.3 ± 49.8

0.9343

26.2 ± 1.6

84.1 ± 39.9

0.8245

35.2 ± 3.2

97.3 ± 52.2

0.9539

35.2 ± 2.2

91.6 ± 38.3

0.8980

45.9 ± 3.6

87.2 ± 42.3

0.8549

44.8 ± 2.6

89.6 ± 41.3

0.8784

55.7 ± 3.2

77.9 ± 36.9

0.7637

53.5 ± 2.7

93.3 ± 36.3

0.9147

66.7 ± 4.2

75.4 ± 42.2

0.7392

62.6 ± 3.4

94.6 ± 44.3

0.9275

76.5 ± 4.5

69.4 ± 40.4

0.6804

72.1 ± 3.8

94.2 ± 43.3

0.9235

85.5 ± 4.9

51.4 ± 38.4

0.5039

80.8 ± 4.2

97.2 ± 41.5

0.9529

94.2 ± 5.1

38.9 ± 38.8

0.3814

  1. Volumes are expressed in percent of vital capacity at ambient pressure. All values are shown with standard deviations. Pmax for males was determined to be 102 cmH2O.