Efecto de la manipulación de las variablesque configuran el estímulo del entrenamientode fuerza sobre los síntomas motores enpersonas con enfermedad de Parkinson: unarevisión sistemática

Introduction: Parkinson’s disease (PD) is a multisystemneurodegenerative disease that affects the centralnervous system. People with Parkinson’s disease(PPD) have both motor and non-motor symptoms.Physical exercise is one of the most promising nonpharmacologicalinterventions to complement medicaltreatment in PEP. Objective: A systematic review of theliterature was to analyze the effect of muscular strengthtraining (ST) on motor symptoms and describe how thevariables that shape EF were manipulated in studiesconducted with PEP. Methods: A systematic review ofthe literature was conducted according to the guidelinesof the Cochrane Handbook for Systematic Reviews.Studies were identified by searching four electronicdatabases: Web of Science, Scopus, PubMed, andEBSCOhost. The methodological quality of the selectedarticles was evaluated using the PEDro scale checklist.The included studies obtained a score ≥ 6. Results: The preliminary search yielded 2830 studies. Twenty articleswere considered after reviewing the abstract and full text.Seven studies were rejected for not recording some ofthe required strength training variables and three wererejected for using supplementary training to strengthtraining. A total of ten studies met the inclusion criteria.ST programs were implemented 2 - 3 times per week withintensities between 30 % - 90 % 1RM, a training volume of1 - 3 sets and 4 - 20 repetitions, sessions between 35 - 90minutes with significant improvements in resting tremor,gait measures, bradykinesia and balance. Conclusions:Regardless of how the ST stimulus was configured, thereare significant improvements in motor symptoms in PEP.These results promote the implementation of strengthtraining in PEP, but due to the low number of studies (10)and the high variability in the manipulation of the variablesthat configure the strength training stimulus, they preventus from knowing which the optimal prescription is toimprove the motor symptoms of PEP.