Vibrotherapy: effects on strength, balance and graphomotricity in Down síndrome. A case study
Introduction: people with Down Syndrome (DS) present sensorial and motor control deficits that generate difficulties in their functional performance. Case presentation and aim: the aim of the present study was to analyze the short-term effects of two intervention sessions with Whole Body Vibration (WBV) in terms of balance, graphomotor skills and strength in a participant with DS, and determine which frequency is more effective. The Functional Reach Test and Computerized Dynamic Posturography were used as a result to evaluate changes in balance, and a graphomotor test and manual dynamometry to determine variations in writing and muscle strength, respectively. Results: clinically relevant results were obtained, as well as differences between the frequency of intervention used, highlighting positive changes in muscle strength and balance after the intervention at 6 Hz and an improvement in the stroke after the intervention at 3 Hz. Conclusions: immediate and clinically relevant effects were found after a single session of WBV, as well as differences in the results according to the frequency of intervention used. The most relevant results were achieved after the intervention session at 6 Hz.
Keywords: Down Syndrome, postural balance, muscle strength, graphomotor skills, Whole Body Vibration, dynamic posturography.