Adapted sports are known to be a valid complement to classical rehabilitation, especially in the treatment of Cerebral Palsy,which requires continuous rehabilitation to preserve motor function. This paper discusses the preliminary results of the ACCEPT project, which aims at designing an adapted climbing wall which doubles as a tool for the functional assessment of motorfunction. Eight children with hemiplegia were asked to perform climbing games on three consecutive days. A network of forcesensors recorded the force exerted by the children on the holds while climbing, and motion capture was used to determinewhich limb touched which hold. Data was processed into two candidate indices, to be used as proxies for the motor function of the upper and lower limbs. ANOVA suggests that one of the two indices is related to the difference in the functionality of the more and less affected arm, both when collected during structured (p = 0.002) and during unstructured climbing games (p =0.023), while the indices proved inconclusive for the legs. These results suggest that the ACCEPT platform could be used for the automatic functional assessment of the motor function of the upper limbs during a climbing game.