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Table 2 Results of cross-correlation analysis of the rotational movement between the lumbar spine and hip joints

From: Kinematic relationship between rotation of lumbar spine and hip joints during golf swing in professional golfers

 

Total swing

Backswing

Downswing

Lumbar spine and leading hip joint

 Max. correlation coefficient

0.83 ± 0.09

0.89 ± 0.16*

0.65 ± 0.13

 Time lag at each peak value (s)

0.25 ± 0.12§,£

Lumbar spine and trailing hip joint

 Max. correlation coefficient

0.79 ± 0.10

0.88 ± 0.19

0.82 ± 0.18

 Time lag at each peak value (s)

0.11 ± 0.13§

  1. * p < 0.01 versus downswing, §p < 0.01 versus zero time lag, £ p < 0.01 versus lumbar spine and trailing hip joint.