Among the investigated miRNAs, miR-122 demonstrated the largest acute response, with a median log 2 fold change of −1.03 (IQR −2.12 to −0.60), corresponding to an approximately twofold decrease and a large effect size (r = 0.56), although the result did not reach statistical significance (p = 0.067). miR-103, miR-144 and miR-486 showed no significant immediate changes following exercise.
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Phase-dependent reorganization of circulating miRNA networks following short maximal exercise.
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a negative trendp = 0.24
Training volume also showed a negative trend with peripheral desaturation (ΔStO 2 ; ρ = −0.39, p = 0.24), whereas no associations were found between training volume and miR-103, miR-122, or cortisol responses.