Gross motor function
sVT
Both 12VT and 20VT led to improvements in gross motor function, measured by both GMFM-D and GMFM-E (Table Gross motor function outcomes12VT, assessment after 12 weeks of side-alternating vibration therapy; 20VT, assessment after 20 weeks of side-alternatingvibration therapy; GMFM-D, gross motor function measure dimension D; GMFM-E, gross motor function measure dimension EData at each assessment are the adjusted means and 95% confidence intervals (CI), while differences between assessments are the adjusted mean differences and 95% CI; GMFM-E values were derived from linear mixed models based on repeated measures including the participant’s GMFCS level, randomisation group (20 Hz / 25 Hz), and the baseline value of the outcome as a covariate; GMFM-D values were similarly derived but with the inclusion of an interaction term between GMFCS level and assessmentStatistically significant differences (at After 20VT, the extra 8 weeks of sVT lead to an additional 1.2-point increase in GMFM-E scores (+ 1.6%; 95% CI 0.3, 2.9%; 