Chronic Effect of Whole-body Electrical Stimulation in COPD Patients

Federal University of Health Science of Porto Alegre

Status: Not yet enrolling

Conditions: Chronic Obstructive Pulmonary Disease (COPD)

Treatments: Other: Whole-body electrical stimulation; Other: Rehabilitation

Study type: Interventional

Funder types: Other

Identifiers

NCT06761963

WBES_COPD_2

Details and patient eligibility

About

Randomized clinical trial. Patients with chronic obstructive pulmonary disease (COPD) GOLD III or IV will undergo 16 sessions of Whole-body Electrical Stimulation (WB-EMS) or pulmonary rehabilitation (PR), twice a week. WB-EMS will be performed in association with squats, biceps and triceps exercises, climbing up and down a step, and abdominal exercises. There will be a progression in the number of muscle contractions after the fourth (from 64 to 96) and tenth sessions (96 to 120). PR will consist of upper and lower limb strengthening exercises. Both groups will perform aerobic exercise (essential component of the pulmonary rehabilitation program). Peripheral muscle strength (dynamometry), respiratory muscle strength (maximum inspiratory and expiratory pressure), muscle thickness (ultrasound), functional capacity (6MWT), quality of life (Saint George's Respiratory Questionnaire), inflammatory profile (PCR, IL-6 e IL-10, TNFα), oxidative stress (protein oxidation, superoxide dismutase and catalase, total hydrogen sulfides, dichlorofluorescein diacetate) will be assessed before and after the 16 sessions.

Full description

Patients with chronic obstructive pulmonary disease (COPD) will undergo a 16-session whole-body electrical stimulation (WB-EMS) protocol or a pulmonary rehabilitation program, twice a week, for eight weeks. The Miha Bodytec equipment will be properly calibrated, with electrodes on the quadriceps, hamstrings, glutes, biceps, triceps, pectorals, abdomen, trapezius, latissimus dorsi and quadratus lumborum muscles. Symmetrical pulsed biphasic current will be used, pulse width of 400 µs, frequency of 75 Hz. In the first two weeks, the contraction time will be five seconds and the rest time will be 10 seconds, the session will last 16 minutes, resulting in 64 muscle contractions. In weeks 3, 4 and 5, the contraction time will be five seconds and the rest time will be five seconds, the session will last 16 minutes, resulting in 96 muscle contractions. In weeks 6, 7 and 8, the contraction time will be five seconds and the rest time will be five seconds. The session will last 20 minutes, resulting in 120 muscle contractions. During the first two minutes of stimulation, the patient will remain in isometric position to familiarize themselves with the electrical current. After that, a series of squats, biceps and triceps exercises (using a proprioception stick), abdominal exercises and climbing up and down a step will be performed. At the end of each session, patients will do aerobic exercise (bicycle or treadmill). Pulmonary rehabilitation will consist of muscle strengthening exercises, using weights, ankle weights and weight training equipment. Squats, biceps and triceps exercises (with weights), knee flexion and extension (equipment with weights) and stretching will be performed. At the end of each session, patients will do aerobic exercise (bicycle or treadmill). Peripheral muscle strength (dynamometry), respiratory muscle strength (maximum inspiratory and expiratory pressure), muscle thickness (ultrasound), functional capacity (6MWT), quality of life (Saint George's Respiratory Questionnaire), inflammatory profile (PCR, IL-6 e IL-10, TNFα), oxidative stress (protein oxidation, superoxide dismutase and catalase, total hydrogen sulfides, dichlorofluorescein diacetate) will be assessed before and after the 16 sessions.

Enrollment: 16 estimated patients

Sex: All

Ages: 18 to 80 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Diagnosis of COPD GOLD 3 and 4;
• Age between 18 and 80 years;
• Ability to ambulate.

Exclusion criteria

• Cognitive dysfunction that prevents assessments from being carried out, as well as inability to understand and sign the informed consent form (ICF);
• Intolerance to the electrostimulator and/or change in skin sensitivity;
• Patients with stroke sequelae;
• Recent acute myocardial infarction (two months);
• Uncontrolled hypertension;
• New York Heart Association grade IV heart failure or decompensated;
• Unstable angina or arrhythmia;
• Peripheral vascular changes in lower limbs such as deep vein thrombosis;
• Disabling osteoarticular or musculoskeletal disease;
• Uncontrolled diabetes (glycemia > 300mg/dL);
• Patients with cancer and/or undergoing cancer treatment;
• Patients with systemic lupus erythematosus or other autoimmune disease;
• Artificial cardiac pacemaker;
• Epilepsy;
• Hemophilia;
• Liver and kidney diseases.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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16 participants in 2 patient groups

whole-body electrical stimulation

Experimental group

Description:

Performed with calibrated Miha Bodytec equipment, with electrodes on the quadriceps, hamstrings, glutes, biceps, triceps, pectorals, abdomen, trapezius, latissimus dorsi, and quadratus lumborum. A symmetrical biphasic current, 400µs pulse width, 75Hz frequency will be used. Sixteen sessions will occur twice weekly for eight weeks. In weeks 1-2, contractions last five seconds with 10 seconds rest, for 16 minutes (64 contractions). In weeks 3-5, contractions remain five seconds with five seconds rest, also lasting 16 minutes (96 contractions). In weeks 6-8, contractions/rest stay at five seconds each, lasting 20 minutes (120 contractions). Initial isometric positions familiarize the patient with stimulation, followed by squats, biceps/triceps exercises with a proprioception stick, abdominal exercises, step-up exercises, and aerobic activities (bike/treadmill) to conclude each session.

Treatment:

Other: Whole-body electrical stimulation

Rehabilitation

Other group

Description:

There will be 16 sessions, twice a week, on alternate days, for eight weeks. It will consist of muscle strengthening exercises, using weights, ankle weights and weight training equipment. Squats, biceps and triceps exercises (with weights), knee flexion and extension (equipment with weights) and stretching will be performed. At the end of each session, patients will do aerobic exercise (bicycle or treadmill).

Treatment:

Other: Rehabilitation