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Table 2 Spearman correlation coefficients calculated between kinematic variables and clinical assessments

From: Associations between upper extremity functioning and kinematics in people with spinal cord injury

Kinematic variables (n = 25)

ARAT

SHFT

ISCI-Hand

Movement time

 Reaching

− 0.41*

− 0.34

− 0.44*

 Forward transport

− 0.71**

− 0.77**

− 0.71**

 Drinking

− 0.15

− 0.19

− 0.11

 Backward transport

− 0.58**

− 0.63**

− 0.55**

 Returning

− 0.31

− 0.42*

− 0.36

 Movement time, total

− 0.70**

− 0.70**

− 0.67**

Smoothness (number of movement units)

 Reaching and forward transport

− 0.89**

− 0.80**

− 0.76**

 Backward transport and returning

− 0.71**

− 0.80**

− 0.61**

 Number of movement units, total

− 0.82**

− 0.84**

− 0.75**

Movement velocity and strategy

 Peak hand velocity (reaching)

0.02

0.05

− 0.01

 Time to peak hand velocity (reaching)

− 0.04

0.02

0.09

 Peak elbow angle velocity (reaching)

− 0.10

0.07

− 0.04

Movement pattern

 Elbow extension (reaching)

0.16

0.07

0.15

 Elbow flexion (drinking)

0.66**

0.62**

0.43*

 Arm abduction (drinking)

− 0.34

− 0.36

− 0.48*

 Wrist angle (reaching and forward transport)

− 0.60**

0.54**

0.55**

 Interjoint coordination (reaching)

− 0.09

− 0.20

− 0.14

 Trunk displacement

− 0.52**

− 0.50*

− 0.39

  1. ARAT, Action Research Arm Test; SHFT, Sollerman Hand Function Test; ISCI-Hand, basic Hand—upper extremity function according to the International Spinal Cord Injury Upper Extremity Basic Data Set
  2. **p < 0.01 *p < 0.05