Table 1 Clinical characteristics of patients on hemodialysis

Patients enrolled as subjects

48

31

17

Age (years)

68.3 ± 10.7

45.0

88.0

69.0 ± 11.1

45.0

88.0

66.9 ± 10.0

50.0

83.0

Height (cm)

156.4 ± 8.3

138.7

171.2

160.6 ± 5.7

148.7

171.2

148.7 ± 6.7

138.7

161.0

Body weight (dry weight) (kg)

53.4 ± 10.0

32.7

89.4

56.6 ± 8.7

40.1

89.4

47.5 ± 9.8

32.7

71.7

Body mass index (kg/m²)

21.7 ± 3.0

16.6

30.5

21.9 ± 2.7

16.8

30.5

21.4 ± 3.6

16.6

30.2

Body fat percentage (%)

28.5 ± 9.6

10.2

50.1

27.2 ± 9.3

10.2

50.1

31.0 ± 9.8

14.7

49.2

EQ-5D scores

0.754 ± 0.177

0.419

1.000

0.757 ± 0.170

0.444

1.000

0.746 ± 0.194

0.419

1.000

K6 score

3.6 ± 3.7

0.0

16.0

3.6 ± 3.5

0.0

11.0

3.5 ± 4.2

0.0

16.0

Daily step counts (steps per day)

3770.3 ± 2065.4

422.4

9043.3

3569.0 ± 2093.7

422.4

8523.9

4137.3 ± 2022.5

1628.6

9043.3

Daily step counts on hemodialysis treatment days (steps per day)

3473.2 ± 1903.5

376.7

8944.3

3294.4 ± 2071.9

376.7

8944.3

3799.3 ± 1555.3

1426.3

7194.7

Daily step counts on non-hemodialysis treatment days (steps per day)

3993.0 ± 2407.5

456.8

10429.8

3774.9 ± 2345.6

456.8

9814.5

4390.7 ± 2539.7

1295.3

10429.8

Physical activity (METs·h/w)

8.1 ± 6.0

0.5

29.9

7.2 ± 6.4

0.5

29.9

9.7 ± 5.2

3.8

20.3

Physical activity on hemodialysis treatment days (METs·h/w)

7.2 ± 5.3

0.6

21.3

6.3 ± 5.4

0.6

21.3

8.9 ± 4.9

2.9

18.7

Physical activity on non-hemodialysis treatment days (METs·h/w)

8.8 ± 7.4

0.4

36.4

7.9 ± 8.1

0.4

36.4

10.4 ± 5.9

2.9

21.4

Physical activity over 4 METs·h/w (METs·h/w)

1.2 ± 1.4

0.0

5.6

1.1 ± 1.3

0.0

5.6

1.4 ± 1.5

0.2

5.2

Physical activity over 4 METs·h/w on hemodialysis treatment days (METs·h/w)

1.0 ± 1.4

0.0

8.8

0.9 ± 1.7

0.0

8.8

1.0 ± 0.9

0.0

3.3

Physical activity over 4 METs·h/w on non-hemodialysis treatment days (METs·h/w)

1.4 ± 1.8

0.0

8.1

1.2 ± 1.5

0.0

5.3

1.7 ± 2.1

0.1

8.1