Inclusion Criteria:  Diagnosed with pediatric cancer and inpatient and outpatient treatment in Hematology-Oncology Clinics for treatment, Able to walk alone without any walking aid, Children aged 6-18 will be included  Exclusion Criteria:  Staying in an isolated room or at risk of infection (neutropenic, etc.), Any orthopedic or neurological disorder that may prevent walking; Having any mental disability that will prevent performing a cognitive task, Individuals with malignant hypertension or unstable heart disease (eg, congestive heart failure) will not be included in the study.