Table 1 Participant values, group mean and standard deviations for pseudo stretch (PS) in each condition, difference in pseudo-stretch (PSD), energy cost of running (ECr) and difference in performance (ΔECr).

From: Effects of midsole cushioning stiffness on Achilles tendon stretch during running

 

PS [mm]

PSD

ECr [kJ∙kg−1 km−1]

ΔECr

Stiff

Compliant

[mm]

Stiff

Compliant

[%]

P1

24.3

30.0

− 5.7

4.59

4.47

− 2.52

P2

50.2

48.9

1.3

4.75

4.72

− 0.76

P3

44.5

45.2

− 0.6

5.09

4.87

− 4.33

P4

23.6

24.7

− 1.1

4.79

4.67

− 2.51

P5

35.9

37.4

− 1.5

4.40

4.37

− 0.70

P6

28.3

28.3

− 0.1

5.04

4.98

− 1.02

P7

40.3

38.6

1.6

4.39

4.60

4.57

P8

27.6

24.3

3.4

4.64

4.74

2.10

P9

38.2

39.3

− 1.0

4.37

4.30

− 1.55

P10

38.4

39.4

− 1.0

4.40

4.22

− 4.03

P11

38.8

37.5

1.2

3.94

4.00

1.49

P12

27

26.3

0.7

4.93

4.76

− 3.44

P13

44.1

43.8

0.3

4.71

4.73

0.44

P14

22.6

22.2

0.4

4.41

4.44

0.70

Mean

34.6

34.7

− 0.1

4.60

4.56

− 0.83

SD

8.9

8.6

2.1

0.31

0.27

2.52