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Table 6 Comparison of 6MWD, muscle strength, and HADS before and after surgery

From: Changes in exercise capacity, muscle strength, and health-related quality of life in esophageal cancer patients undergoing esophagectomy

 

Before

After surgery

P value

Changes

6MWD, m (n = 32)

494 ± 76

409 ± 108

0.001 > *

−85 ± 88

Desaturation during 6MWTa

N = 5

N = 5

1

 

Hand grip strength, kgf (n = 33)

 Right

30.6 ± 9.1

28.7 ± 8.6

0.01*

−1.9 ± 3.9

 Left

28.8 ± 8.6

27.5 ± 7.7

0.01*

−1.3 ± 2.8

Isometric knee extensor muscle strength, kgf (n = 31)

 Right

26.0 ± 8.5

24.7 ± 8.2

0.08

−1.3 ± 3.8

 Left

25.2 ± 9.4

22.9 ± 7.8

0.02*

−2.3 ± 4.9

 HADS anxiety (n = 23)

5.4 ± 2.9

5.1 ± 4.0

0.76

−0.3 ± 4.0

  Scores ≥ 8

N = 4

N = 8

0.31

 

 HADS depression (n = 23)

5.7 ± 3.7

5.4 ± 3.8

0.54

−0.3 ± 2.3

  Scores ≥ 8

N = 6

N = 7

1

 

 CAT (n = 24)

10.4 ± 5.6

15.9 ± 7.3

0.02*

5.5 ± 7.5

  1. Values are mean ± SD and compared by paired t-test or Fisher’s exact test. aDesaturation was defined as a fall in SpO2 ≥ 4 % or SpO2 < 90 % during the 6MWT. *P <0.05