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Table 1 Mean (± SEM) Intervertebral disc (IVD) (L2–S1) height (cm) before (PRE UPRIGHT) and following upright trunk exercise performance (POST UPRIGHT) in 1 g

From: Effect of trunk exercise upon lumbar IVD height and vertebral compliance when performed supine with 1 g at the CoM compared to upright in 1 g

IVD level (cm)

PRE UPRIGHT

POST UPRIGHT

Hedge’s g

Paired t-test

L2–L3

0.65 ± 0.01

0.58 ± 0.02

1.39

p = 0.058

L3–L4

0.75 ± 0.01

0.75 ± 0.03

0.08

p = 0.804

L4–L5

0.89 ± 0.02

0.89 ± 0.02

0.03

p = 0.928

L5–S1

1.18 ± 0.02

1.14 ± 0.02

0.49

p = 0.223

  1. Paired t-tests with Hedge’s g effect size calculations were used to compare conditions