Aged
Conditions
Keywords
Aged, Electric stimulation
Brief summary
Elderly people experience reduced strength, mass and muscle function throughout the aging process, and this negatively affects the functionality and quality of life of these individuals. A randomized clinical trial will be carried out with 30 volunteers who will be allocated into two groups (whole-body electrical stimulation or control). Whole-body electrical stimulation (WBS) sessions will take place twice a week, for 8 weeks, totaling 16 sessions. The primary outcomes of this study are functional mobility (Timed Up and Go test) and quality of life (EQ-5D questionnaire). Functional mobility will be assessed at baseline, after 4 and 8 weeks of treatment or follow-up. Quality of life will be assessed only at the beginning and end of 8 weeks.
Detailed description
Elderly people experience reduced strength, mass and muscle function throughout the aging process, and this negatively affects the functionality and quality of life of these individuals. Rehabilitation strategies similar to conventional exercise that minimize the damage caused by aging and improve subjects' adherence need to be studied. A randomized clinical trial will be carried out with 30 volunteers who will be allocated into two groups (whole-body electrical stimulation or control). Whole-body electrical stimulation (WBS) sessions will take place twice a week, for 8 weeks, totaling 16 sessions. Simultaneously with the WBS, the elderly will perform exercises for the upper, lower limbs and trunk. The following assessments will be carried out at baseline and 8 weeks to verify the effect of therapy: assessment of functional mobility; quality of life (EQ-5D); isometric muscle strength of the quadriceps muscles, biceps brachii and handgrip strength; lower limb muscle strength; assessment of body composition; assessment of cellular senescence; the inflammatory profile; well-being; measurement of muscle damage and pain; assessment of therapy safety and assessment of sleep quality. Assessments of functional mobility, lower limb muscle strength, cellular senescence; the inflammatory profile; well-being; and muscle damage will also be carried out in 4 weeks.
Interventions
The parameters adopted for the treated group will be: symmetrical biphasic current, pulse width of 400 µs, frequency of 80 Hz, contraction time of five seconds and decreasing rest time, varying from 10 to 5 s. The intensity will be individually adjusted to the patient's maximum tolerance limit to produce visible muscle contraction. The session time will be 15 to 20 minutes and the number of contractions will increase with each week of training. Concomitant to the electrical stimuli, exercises will be performed for the elbow flexors and extensors, spine flexors and extensors, knee flexors and extensors, hip flexors and extensors and the calf muscles.
Sponsors
Leonhardt Ventures LLC
Federal University of Health Science of Porto Alegre
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
60 Years to 85 Years
Healthy volunteers
Yes
Inclusion criteria
* Elderly people aged between 60 and 85 years; * Both sexes; * To have the ability to walk.
Exclusion criteria
* Cognitive dysfunction; * Intolerance to electrical stimulator and/or changes in skin sensitivity; * Skin injuries or burns where the electrodes are positioned; * Sequelae of stroke; * Recent acute myocardial infarction; * Uncontrolled hypertension; * Grade IV heart failure or decompensated; * Unstable angina or arrhythmia; * Peripheral vascular changes in the lower limbs such as venous thrombosis deep; * Disabling osteoarticular or musculoskeletal disease; * Uncontrolled diabetes; * Cancer; * Autoimmune disease; * Pacemaker; * Epilepsy; * Hemophilia; * Chronic obstructive pulmonary disease; * Liver and kidney diseases; * Grade II obesity (BMI≥35).
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Functional mobility. | Baseline, after 4 and 8 weeks. | Functional mobility will be assessed using the Timed Up and Go test. |
| Change in quality of life measured by the EuroQol five-dimensional questionnaire (EQ-5D). | Baseline and after 8 weeks. | Change in quality of life will be assessed by the EuroQol five-dimensional questionnaire (EQ-5D). The final score of this questionnaire can vary from 0 to 1. The closer to 1, the better the subject's quality of life. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Isometric handgrip strength. | Baseline and after 8 weeks. | Isometric handgrip strength will be assessed by dynamometry. |
| Lower limb muscle strength. | Baseline, after 4 and 8 weeks. | Lower limb muscle strength will be assessed by the 10-repetition sit-stand test (SST10). |
| Body composition. | Baseline and after 8 weeks. | Body composition will be assessed by bioimpedance. |
| Cellular senescence. | Baseline, after 4 and 8 weeks. | Cellular senescence will be assessed by measuring alpha-klotho protein by ELISA. |
| Inflammatory profile. | Baseline, after 4 and 8 weeks. | Inflammatory profile will be assessed by measuring interleukin 6 by ELISA. |
| Well-being. | Baseline, after 4 and 8 weeks. | Well-being will be assessed by measuring beta-endorphin by ELISA. |
| Isometric muscle strength of the quadriceps muscle. | Baseline and after 8 weeks. | Isometric muscle strength of the quadriceps muscle will be assessed by dynamometry. |
| Muscle pain measured by analogic visual scale (AVS). | Baseline and after 8 weeks. | Muscle pain will be assessed by analogic visual scale (AVS). This scale ranges from 0 to 10. The closer to 10, the greater the subject's pain. |
| Sleep quality. | Baseline and after 8 weeks. | Sleep quality will be assessed by Pittsburgh Sleep Quality Index (PSQI). |
| Change in heart rate. | Baseline and after 20 minutes of whole-body electrical stimulation. | Safety will be assessed by monitoring heart rate by pulse oximetry. |
| Change in peripheral oxygen saturation. | Baseline and after 20 minutes of whole-body electrical stimulation. | Safety will be assessed by monitoring peripheral oxygen saturation by pulse oximetry. |
| Change in systolic blood pressure. | Baseline and after 20 minutes of whole-body electrical stimulation. | Safety will be assessed by monitoring systolic blood pressure by sphygmomanometer. |
| Change in diastolic blood pressure. | Baseline and after 20 minutes of whole-body electrical stimulation. | Safety will be assessed by monitoring diastolic blood pressure by sphygmomanometer. |
| Muscle damage. | Baseline, after 4 and 8 weeks. | Muscle damage will be assessed by creatine kinase dosage. |
| Isometric muscle strength of the biceps brachii. | Baseline and after 8 weeks. | Isometric muscle strength of the quadriceps muscle will be assessed by dynamometry. |
Countries
Brazil
Outcome results
None listed