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Table 3 Correlations coefficients (r) between combined (left and right side) CSA measurement and strength test

From: Cross-sectional area of the paraspinal muscles and its association with muscle strength among fighter pilots: a 5-year follow-up

  Leg Extension Trunk Flexion Trunk Extension
r P r P r P
PS 3–4 0.60** <.01 0.50** <.01 0.50** <.01
PS 4–5 0.23 .26 0.44* .03 0.43* .03
Pso 3–4 0.60** <.01 0.38 .06 0.36 .07
Pso 4–5 0.54** <.01 0.48* .01 0.45* .02
  1. PS Paraspinal Muscles, Pso Psoas Muscles, CC Correlation Coefficient (Spearman); *p < 0.05; **p < 0.01