| AMPK | AMP-activated protein kinase |
| AT | Aquatic-based therapeutic exercise |
| BDNF | Brain-derived neurotrophic factor |
| CASPe | Critical Appraisal Skills Program in Spanish |
| CG | Control group |
| FNDCS | Fibronectin type III domain-containing proteins |
| IG | Intervention group |
| IGF-1 | Insulin-like growth factor 1 |
| IL-10 | Interleukin 10 |
| LT | Land-based therapeutic exercise |
| MeSH | Medical Subject Headings |
| PD | Parkinson’s Disease |
| PEDro | Physiotherapy Evidence Database |
| QoL | Quality of life |
| TNFα | Tumor necrosis factor-alpha |
| PGC-1α | Peroxime proliferator-activated receptor gamma coactivator 1-alpha |
| PRISMA | Preferred Reporting Items for Systematic Reviews and Meta-analyses |
| Tpa | Tissue plasminogen activator |