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Table 2 Effect of walking duration on the PPG and PGA

From: Effects of walking speeds and durations on the plantar pressure gradient and pressure gradient angle

 

Speed

Region

Duration

Paired t-test

   

10 min

(Mean ± SE)

20 min

(Mean ± SE)

p-value

PPG

1.8 mph

T1

53.0

 ± 

9.6

57.4

 ± 

10.4

0.513

  

M1

59.6

 ± 

10.2

63.5

 ± 

11.4

0.459

  

M2

64.7

 ± 

9.8

67.0

 ± 

7.7

0.769

  

HL

33.9

 ± 

4.7

37.5

 ± 

4.4

0.425

 

3.6 mph

T1

77.6

 ± 

11.6

79.8

 ± 

15.2

0.841

  

M1

73.9

 ± 

14.0

93.2

 ± 

19.1

0.116

  

M2

70.7

 ± 

11.7

81.8

 ± 

16.4

0.539

  

HL

42.6

 ± 

5.9

67.8

 ± 

15.1

0.082

 

5.4 mph

T1

98.7

 ± 

19.4

102.4

 ± 

16.0

0.850

  

M1

90.3

 ± 

15.5

90.7

 ± 

12.2

0.976

  

M2

79.8

 ± 

15.7

103.7

 ± 

17.0

0.211

  

HL

37.4

 ± 

5.4

46.7

 ± 

8.6

0.141

PGA

1.8 mph

T1

27.0

 ± 

9.2

39.8

 ± 

17.9

0.502

  

M1

60.0

 ± 

15.0

59.2

 ± 

15.5

0.958

  

M2

49.3

 ± 

15.2

69.0

 ± 

26.2

0.418

  

HL

28.1

 ± 

7.0

17.7

 ± 

2.3

0.217

 

3.6 mph

T1

16.4

 ± 

2.6

27.8

 ± 

10.5

0.244

  

M1

32.3

 ± 

7.3

26.8

 ± 

8.1

0.571

  

M2

31.8

 ± 

10.4

21.7

 ± 

7.2

0.415

  

HL

24.6

 ± 

2.5

36.2

 ± 

14.2

0.451

 

5.4 mph

T1

19.8

 ± 

11.4

41.5

 ± 

19.4

0.378

  

M1

32.4

 ± 

10.7

26.1

 ± 

8.4

0.276

  

M2

29.6

 ± 

5.8

27.9

 ± 

5.5

0.767

  

HL

19.3

 ± 

2.8

28.6

 ± 

7.4

0.277

  1. PPG Peak pressure gradient, PGA Pressure gradient angle, T1 First toe, M1 First metatarsal head, M2 Second metatarsal head, and HL Heel; Data are shown as mean ± standard errors