Feasibility Study to Assess an Adapted Physical Activity Program in Children, Adolescents and Young Adults Requiring Hematopoietic Stem Cell Transplantation

"The supervised sessions will be offered 4 times a week in the participants' rooms by the APA teachers and will include moderate intensity aerobic activities (exercise bike), muscle strengthening (dumbbells, elastic bands, medicine balls) and playful situations (ball games, cooperative games, body expression games).~Each patient will also be able to perform unsupervised sessions (on their own), following the advice given by the APA teacher. These unsupervised sessions can be done independently on the bike.~In order to encourage patients to perform these unsupervised sessions, patients and their relatives will be given a connected device and will have access to a mobile application developed by the Kiplin company, which offers connected physical activity games to be performed in teams (from 2 to 4 participants). These games, lasting from 1 to 3 weeks, use the participants' daily PA level as a unit of animation and are punctuated by challenges."