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Table 1 Drop landing discrete point findings – inter-limb differences in peak variable magnitudes during the eccentric phase

From: Biomechanical symmetry in elite rugby union players during dynamic tasks: an investigation using discrete and continuous data analysis techniques

Variable

Dominant

Non-dominant

Diff

AI%

p value

Effect size

Ankle angles (deg)

      

DorsiF (+)/PlantF(−)

18.4 ± 2.8

19.4 ± 3.8

1.0

5

0.46

0.28

Ever(+)/ Inv(−)

5.7 ± 2.4

5.0 ± 2.2

0.7

17

0.39

−0.32

Ankle moments (Nm/kg)

      

PlantF(+)/DorsiF(−)

2.7 ± 0.4

2.8 ± 0.6

0.1

4

0.39

0.32

Ever(+)/ Inv(−)

−0.1 ± 0.2

−0.2 ± 0.2

0.1

67

0.52

−0.24

Knee angles (deg)

      

Flex(+)/Ext(−)

66.6 ± 8.8

66.3 ± 8.0

0.3

1

0.93

−0.03

Var(+)/Valg(−)

4.3 ± 5.6

7.6 ± 8.5

3.3

143

0.22

0.46

Knee moments (Nm/kg)

      

Ext (+)/Flex(−)

3.1 ± 0.4

3.1 ± 0.3

0.0

0

0.95

0.02

Valg(+)/Var(−)

1.9 ± 0.4

2.0 ± 0.5

0.1

5

0.56

0.22

Hip angles (deg)

      

Flex(+)/Ext(−)

59.3 ± 10.9

59.4 ± 9.1

0.1

0

0.98

0.01

Add(+)/ Ab(−)

9.3 ± 5.6

10.0 ± 3.0

0.7

19

0.70

0.15

Hip moments (Nm/kg)

      

Ext (+)/Flex(−)

5.4 ± 2.0

5.0 ± 1.3

0.4

8

0.47

−0.27

Ab(+)/Add(−)

2.7 ± 0.7

2.2 ± 0.8

0.5

20

0.09

−0.63

Pelvis angles (deg)

      

AntT(+)/PostT(−)

13.8 ± 8.0

14.5 ± 7.5

0.7

8

0.79

0.10

Contra Drop(+)/Contra Lift(−)

−12.1 ± 4.0

−8.9 ± 3.4*

3.2

31

0.02

0.80

Ground reaction force (N/kg)

      

Vertical

43.7 ± 5.1

44.8 ± 6.6

1.1

3

0.61

0.19

  1. *Significant inter-limb difference (p < 0.05)
  2. Diff: difference; AI: asymmetry index; Sig: significance
  3. DorsiF: dorsiflexion; PlantF: plantarflexion; Ever: eversion; Inv: inversion; Flex: flexion; Ext: extension; Var: varus; Val: valgus; Add: adduction; Ab: abduction; AntT: anterior tilt; PostT: posterior tilt; Contra: contralateral