Parkinson's Disease (PD) is a complex neurodegenerative disorder characterized by the progressive loss of dopaminergic neurons, which results in a range of motor symptoms such as tremor, rigidity, and bradykinesia, as well as non-motor symptoms including anxiety, depression, and cognitive decline. Strength training has emerged as a promising intervention to improve motor function and influence biochemical markers associated with oxidative stress and neurodegeneration. This study aims to evaluate the effectiveness of a structured strength training protocol over 12 weeks in improving both functional and biochemical outcomes in patients with PD.
Patients diagnosed with PD who meet the modified diagnostic criteria of the UK Brain Bank.
Patients in stage II or III of the Hoehn and Yahr Scale.
A score greater than 60% on the Schwab and England Functional Scale.
Patients whose motor response to pharmacological treatment is stable or slightly fluctuating and who are not receiving any specific strength training rehabilitation treatment at the time of the study.
Diagnosis of a condition other than PD.
Significant comorbidities and/or severe systemic diseases that would prevent participation in exercise (e.g., recent surgery, cardiac instability, anemia, hepatosis, pulmonary disorders, chronic renal failure, or severe mental disorders).
Inability to actively understand instructions and cooperate in the tasks given, based on a score <24 on the Mini-Mental State Examination (MMSE).
Refusal to participate in the study.
Single group
strength training
Other interventionAn intervention based on the application of a strength training protocol for multi-joint and single-joint muscles will be implemented, performed with a slow-moderate execution speed. This intervention will be carried out over 12 weeks, with a total of 24 sessions (2 sessions per week), each lasting 45 minutes. In all of these sessions, free weights will be used, performing three sets at 60-80% of 1RM for 8-12 repetitions. The exercise protocol will include: * Squats * Deadlifts * Rows * Bicep curls * Bench press * Shoulder press Each set will be performed to muscular failure, progressing in the number of repetitions (from 8 to 12). Once 12 repetitions are reached, the load volume will be increased by adding 5% to the weight.
Timed Up and Go Test
Test developed to evaluate balance and functional mobility to determine the risk of falling. The test consists of timing how long it takes the subject to perform the action of standing up from a chair, walking 3 meters in a straight line, turning around, and sitting back down in the chair. An increase in the time taken to complete the test indicates worse outcomes.
Berg Balance Scale
Scale developed to evaluate balance and postural control. The scale consists of 14 items with Likert-type responses ranging from 0 to 4, where 0 represents the lowest level of function and 4 represents the highest level of function. Higher values indicate better balance control.
10 meter walk test
Instrument used to evaluate gait speed in meters per second. The test consists of timing how long it takes the subject to cover a 10-meter straight path (to avoid acceleration-deceleration effects, 2 meters are added at the beginning and end of the path). An increase in the time taken to complete the test indicates worse outcomes.
30 second sit to stand test
Instrument used to evaluate the strength and endurance of the lower limbs. The test is performed with a 43 cm chair without armrests; the number of squats the subject is able to perform in 30 seconds is counted. The higher the number of squats performed, the better the test results.
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