The randomized controlled trial is aimed to discover the physiotherapy and hippotherapy effect and efficacy on children with SMA. The concept is to utilized two types of physiotherapy - the first concept is classic physiotherapy and the second one is hippotherapy. The hippotherapy concept will be in intervals of 15 minutes twice a day, the physiotherapy will be in intervals of 30 minutes once a day. In-patient therapy will be for 6 days. The efficacy will be assessed by biomedical measures - Qualisys Motion Capture Systems 2020.3., by molecular biological markers (lncRNA) in blood and by surface electromyography (EMG). The primary goal of this study is to compare two physiotherapeutic approaches - the recommended form of classical physiotherapy and the method on a neurophysiological basis - hippotherapy. The secondary intention of the research will be the appropriate intensity of therapy so that unwanted muscle fatigue does not occur.