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Table 1 Increase in mean values of joint VAF for all joints for the four groups

From: Abnormal interlimb coordination of motor developmental delay during infant crawling based on kinematic synergy analysis

Group

∆1,2

∆2,3

∆3,4

∆4,5

∆5,6

∆6,7

∆7,8

∆8,9

∆9,10

∆10,11

∆11,12

TD

31.094 (6.226)

7.297 (4.377)

4.311 (4.104)

1.177 (0.804)

0.583 (0.375)

0.322 (0.250)

0.191 (0.122)

0.124 (0.107)

0.080 (0.082)

0.042 (0.053)

0.030 (0.032)

ARDD

34.336 (6.077)

7.116 (3.773)

3.967 (3.407)

0.892 (1.025)

0.453 (0.337)

0.311 (0.226)

0.185 (0.159)

0.123 (0.107)

0.075 (0.068)

0.043 (0.051)

0.033 (0.024)

AHRDD

32.004 (6.043)

7.894 (4.614)

4.703 (3.754)

1.347 (1.058)

0.667 (0.688)

0.381 (0.204)

0.188 (0.179)

0.129 (0.113)

0.096 (0.100)

0.047 (0.061)

0.039 (0.038)

CDD

32.188 (7.517)

7.545 (5.145)

4.058 (3.645)

1.501 (1.277)

0.607 (0.509)

0.315 (0.270)

0.197 (0.128)

0.113 (0.073)

0.069 (0.065)

0.033 (0.039)

0.029 (0.032)

  1. Δi, (i + 1): number of kinematic synergies increasing from i to (i + 1). i ranges from 1 to 11. Data are expressed as median (interquartile range). Interquartile range = 75th percentile ‒ 25th percentile