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Table 4 Between-group differences in pulmonary function at baseline and post-program

From: Effect of high-intensity interval training on cardiorespiratory fitness, physical activity and body composition in people with schizophrenia: a randomized controlled trial

  

Intervention group

Comparison group

 

N

Mean (SD)

N

Mean (SD)

Mean diff

95% CI

P

FVC (L)

Baseline

43

4.4 (1.3)

39

4.2 (1.1)

0.2

−0.3, 0.7

0.4

Post-program

32

4.3 (1.3)

37

4.2 (1.1)

0.0

−0.5, 0.6

0.7

FVC % pred (%)

Baseline

 

100 (20)

 

96 (15)

3.3

−4.9, 11.6

0.4

Post-program

 

99 (17)

 

98 (14)

−1.3

−8.5, 5.9

0.7

FEV1 (L)

Baseline

43

3.4 (1.0)

39

3.3 (1.0)

0.1

−0.3, 0.6

0.5

Post-program

32

3.3 (1.0)

37

3.1 (0.9)

0.1

−0.3, 0.6

0.4

FEV1 pred (%)

Baseline

 

93 (16)

 

90 (19)

2.7

−56, 11.1

0.5

Post-program

 

93 (18)

 

89 (17)

1.8

−5.8, 9.6

0.6

FEV1/FVC (%)

Baseline

42

77 (11)

37

77 (10)

−0.1

−4.9, 4.6

0.9

Post-program

32

78 (8)

37

75 (11)

2.5

−2.2, 7.3

0.2

FEV1/FVC pred (%)

Baseline

 

95 (13)

 

95 (12)

−0.3

−6.2, 5.6

0.9

Post-program

 

96 (9)

 

93 (14)

3.7

− 2.2, 9.7

0.2

MEF50 (L· s−1)

Baseline

42

3.9 (1.5)

37

3.9 (1.4)

0.0

−0.5, 0.7

0.8

Post-program

32

3.8 (1.6)

37

3.4 (1.3)

0.4

−0.3, 1.1

0.2

MEF50 pred (%)

Baseline

 

78 (25)

 

78 (25)

0.2

−11.6, 12.1

0.9

Post-program

 

78 (27)

 

70 (25)

8.0

−5.0, 21

0.2

MVV (L)

Baseline

40

120 (37)

37

114 (36)

5.7

−11, 22

0.5

Post-program

32

118 (37)

35

110 (31)

7.8

−9, 24

0.3

BR (%)

Baseline

37

26 (18)

32

22 (26)

4.2

−7, 15

0.4

Post-program

25

21 (20)

27

20 (23)

0.8

−11, 13

0.8

  1. Presented values are the mean ± SD. SD, standard deviation. CI, confidence interval. Pred, predicted. FVC, forced vital capacity. FEV1, forced expiratory volume in 1 s. MEF 50%, maximal expiratory flow 50%. MVV, maximal voluntary ventilation. BR, breathing reserve