Table II. MLR and CLR seed-to-ROI rsFC significantly associated with 6MWT distance (n=119).
Seed | ROI BnS #, orig #, label |
ROI centroid MNI coordinates (mm) | Mean ± SD [95% CI] rsFC (Fisher z) | 6MWT association T | pFDR | puncorrected |
---|---|---|---|---|---|---|
MLR | 12, Bn12, right superior frontal gyrus medial area 9 | 6, 38, 35 | 0.09 ± 0.12 [0.07, 0.11] | 3.96 | 0.0162 | 0.0002 |
MLR | 253, S106, right paravermal cerebellum | 7, −67, −21 | 0.21 ± 0.15 [0.18, 0.23] | 3.57 | 0.0162 | 0.0004 |
CLR | 67, Bn67, left paracentral lobule area 4 (M1F) | −4, −23, 61 | 0.06 ± 0.13 [0.03, 0.08] | −3.46 | 0.0486 | 0.0006 |
6MWT-rsFC association testing was non-parametric, two-sided, adjusted for age, sex, height and body mass index, and false-discovery rate (FDR) corrected for 81 ROI comparisons with a significance threshold of pFDR<0.05. MLR, midbrain locomotor region; CLR, cerebellar locomotor region; ROI, region of interest; rsFC, resting state functional connectivity; 6MWT, 6-minute walk test; Bn, Brainnetome Atlas; S, Shen Atlas; MNI, Montreal Neurological Institute space; CI, confidence interval; M1F, primary motor cortex foot area.