| 6MWT | Six-Minute Walk Test |
| ASD | Autism Spectrum Disorder |
| BBS | Berg Balance Scale |
| BSCP | Bilateral Spastic Cerebral Palsy |
| CP | Cerebral Palsy |
| DGI | Dynamic Gait Index |
| DS | Down Syndrome |
| DXA | Dual-energy X-ray Absorptiometry |
| EEI | Energy Expenditure Index |
| EMG | Electromyography |
| FIM | Functional Independence Measure |
| GMFCS | Gross Motor Function Classification System |
| GMFM | Gross Motor Function Measure |
| GRADE | Grading of Recommendations Assessment, Development and Evaluation |
| HGS | Hand Grip Strength |
| HM | Halliwick Method |
| IDD | Intellectual Disabilities |
| MVIC | Maximum Voluntary Isometric Contraction |
| MRI | Magnetic Resonance Imaging |
| MMT | Manual Muscle Test |
| PBS | Pediatric Balance Scale |
| PRISMA | Preferred Reporting Items for Systematic Reviews and Meta-Analyses |
| RCT | Randomized Controlled Trial |
| RoB2 | Cochrane Risk of Bias 2 tool |
| TCMS | Trunk Control Measurement Scale |
| TUG | Timed Up and Go |
| WOTA 2 | Water Orientation Test Alyn 2 |