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. Author manuscript; available in PMC: 2023 Aug 23.
Published in final edited form as: Eur J Appl Physiol. 2021 Jun 9;121(9):2595–2606. doi: 10.1007/s00421-021-04711-7

Table 2.

Pearson’s correlation analyses comparing the linear relationships between perfusion, fractional anisotropy, mean diffusivity, and each individual eigenvalue (λ1–3)

FA (AU) MD (mm2/s) λ1 (mm2/s) λ2 (mm2/s) λ3 (mm2/s)
Perfusion (mL/100 g/min)
Exercising leg
 MG r = 0.07, P = 0.64 r = 0.69, P < 0.01 r = 0.61, P < 0.01 r = 0.69, P < 0.01 r = 0.71, P < 0.01
 TA r = 0.28, P = 0.07 r = 0.53, P < 0.01 r = 0.24, P = 0.12 r = − 0.21, P = 0.18 r = 0.09, P = 0.56
Resting leg
 MG r = 0.27, P = 0.08 r = 0.53 P = < 0.01 r = 0.19, P = 0.24 r = − 0.14, P = 0.36 r = 0.34, P = 0.02
 TA r = 0.10, P = 0.51 r = 0.47, P < 0.01 r = − 0.10, P = 0.50 r = − 0.36, P = 0.02 r = − 0.04, P = 0.79

Sci. Not. scientific notation, MD mean diffusivity (mm2/s), FA fractional anisotropy (AU), λ1–3 eigenvalues 1–3 (mm2/s), Perf perfusion (mL/100g/min)