Clinical, Metabolic, Physical, Functional, Biochemical, Quality of Life, and Quality of Sleep Evaluation in Individuals With Metabolic Syndrome After Performing Systemic Vibratory Therapy on an Oscillating/Vibrating Platform
Overview
- Phase
- Not Applicable
- Status
- Completed
- Sponsor
- Laboratorio de Vibraçoes Mecanicas e Praticas Integrativas
- Enrollment
- 56
- Locations
- 1
- Primary Endpoint
- Glycated Hemoglobin (HbA1c)
Overview
Brief Summary
Studies have demonstrated a strong relationship between physical inactivity and the presence of cardiovascular risk factors such as hypertension, insulin resistance, diabetes, dyslipidemia, obesity, and metabolic syndrome. On the other hand, regular physical exercise has been recommended to prevent and treat cardiovascular diseases, their risk factors, and other chronic conditions. Systemic vibration therapy (SVT) has been proposed as an alternative exercise modality for this population.
This project aimed to assess clinical, metabolic, physical, functional, biochemical parameters, quality of life, and sleep quality in individuals with metabolic syndrome undergoing whole-body vibration exercises on a vibratory platform.
This study aimed to evaluate clinical, metabolic, physical-functional, biochemical parameters, quality of life, and sleep quality in individuals with MSy undergoing whole-body vibration exercises. Assessments were conducted before and after the intervention and included cardiovascular responses, dyspnea, fatigue, anthropometric measurements (neck, abdominal, hip, arm, and ankle circumferences), body composition, anterior trunk and lumbar spine flexibility, and laboratory analyses (complete blood count, cholesterol profile, triglycerides, creatinine, uric acid, cortisol, glucose, insulin, growth hormone, vitamin D, and other biomarkers). Questionnaires assessed quality of life and sleep. Neuromuscular function, handgrip strength, lower limb isometric dynamometry, joint goniometry, and functional tests were evaluated.
Participants were randomized into two SVT protocol groups: Fixed Frequency (FF) and Variable Frequency (VF). Both protocols were conducted on a vibratory platform with alternating base displacement.
In the FF group, a frequency of 5 Hz was applied, with peak-to-peak displacements of 2.5, 5.0, and 7.5 mm, a work time of 1 minute (10s "on" and 50s "off"), and 1 minute of rest in an upright position. In the VF group, frequencies varied from 5 to 16 Hz (increasing by 1 Hz per session), with a work time of 1 minute and 1 minute of rest, while peak-to-peak displacements remained the same as in the FF protocol. The protocols were performed in static and dynamic squat positions, twice a week, over six weeks, totaling 12 sessions.
It is expected that this vibratory platform intervention can improve clinical, physical, biochemical, and functional parameters, as well as quality of life and sleep quality in individuals with MSy.
Detailed Description
For anamnesis, participant data were collected, including age, sex, smoking status, alcohol consumption, presence and type of diabetes mellitus, presence of systemic arterial hypertension, associated comorbidities, medication use, history of COVID-19, and physical inactivity.
Clinical assessments were conducted before and after the 12 sessions of systemic vibratory therapy, including measurements of systemic blood pressure, heart rate, respiratory rate, the BORG scale, the Numeric Pain Scale (NPS), and the Rating of Perceived Exertion (RPE scale - subjective effort perception). Anthropometric measurements were collected, including neck, abdominal, hip, arm, and ankle circumferences, as well as body composition distribution assessed via bioelectrical impedance, anterior trunk flexibility via the sit-and-reach test (FAT), and lumbar spine flexibility via the Schober test.
Laboratory analyses of relevant biomarkers, the HOMA-IR index, and anthropometric indicators were also evaluated. Questionnaires were administered to assess quality of life and sleep quality.
Neuromuscular activity was assessed using surface electromyography, handgrip strength via a manual dynamometer, lower limb isometric dynamometry, joint goniometry, and functional tests. Patients were positioned on the platform base under the supervision of a healthcare professional to perform the interventions.
Study Design
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Parallel
- Primary Purpose
- Treatment
- Masking
- Double (Participant, Outcomes Assessor)
Eligibility Criteria
- Ages
- 45 Years to 65 Years (Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- •Individuals with a confirmed diagnosis of Metabolic Syndrome according to the International Diabetes Federation criteria;
- •Aged over 45 years,
- •Both sexes.
Exclusion Criteria
- •Uncontrolled untreated hypertension, with elevated systemic blood pressure levels (≥180 x 110 mmHg);
- •History of a cardiovascular event (myocardial infarction/stroke) in the last 6 months;
- •Deep vein thrombosis while taking medication (6 months);
- •History of recent surgery on the lower limbs or spine (within 1 year);
- •Neurological, rheumatological, or osteomyoarticular disorders;
- •Severe or disabling diseases; individuals with metallic prostheses;
- •Individuals unable to undergo the proposed assessments and/or interventions;
- •Infectious, neurodegenerative, or pulmonary diseases;
- •Individuals who discontinued the intervention (more than three consecutive absences from sessions);
- •Individuals presenting any contraindication to the vibratory platform.
Outcomes
Primary Outcomes
Glycated Hemoglobin (HbA1c)
Time Frame: From enrollment to the end of treatment at 6 weeks.
Peripheral blood samples were aseptically collected using an intravenous catheter inserted into an antecubital vein. The blood was separated by centrifugation. Glycated hemoglobin (HbA1c, %) levels were measured in plasma samples collected after an 8-hour fasting period. Unit of Measure: % (for HbA1c). Sample collection was conducted at the Clinical Analysis Laboratory (Cápsula) of PPC-UERJ, always during the same shift, no later than 8:00 AM.
Lipid Profile and Fasting Blood Glucose
Time Frame: From enrollment to the end of treatment at 6 weeks.
Peripheral blood samples were aseptically collected using an intravenous catheter inserted into an antecubital vein. The blood was separated by centrifugation. Total cholesterol, low-density lipoprotein (LDL), high-density lipoprotein (HDL), and triglyceride levels were measured in serum samples, and fasting blood glucose levels were measured in plasma samples. All measures collected after an 8-hour fasting period. Unit of Measure: mg/dL Sample collection was conducted at the Clinical Analysis Laboratory (Cápsula) of PPC-UERJ, always during the same shift, no later than 8:00 AM.
Uric Acid Levels
Time Frame: From enrollment to the end of treatment at 6 weeks.
Peripheral blood samples were aseptically collected using an intravenous catheter inserted into an antecubital vein. The blood was separated by centrifugation. Serum uric acid levels were measured in serum samples collected after an 8-hour fasting period. Unit of Measure: mg/dL. Sample collection was conducted at the Clinical Analysis Laboratory (Cápsula) of PPC-UERJ, always during the same shift, no later than 8:00 AM.
Hormonal Biomarkers
Time Frame: From enrollment to the end of treatment at 6 weeks.
Peripheral blood samples were aseptically collected using an intravenous catheter inserted into an antecubital vein. The blood was separated by centrifugation. Insulin, and growth hormone (HGH) levels were assessed in serum samples using standard laboratory techniques after an 8-hour fasting period. Unit of Measure: ng/mL. Sample collection was conducted at the Clinical Analysis Laboratory (Cápsula) of PPC-UERJ, always during the same shift, no later than 8:00 AM.
Metabolic Biomarkers
Time Frame: From enrollment to the end of treatment at 6 weeks.
Peripheral blood samples were aseptically collected using an intravenous catheter inserted into an antecubital vein. The blood was separated by centrifugation. Serum cortisol levels were assessed in serum samples using standard laboratory techniques after an 8-hour fasting period. Unit of Measure: µg/dL. Sample collection was conducted at the Clinical Analysis Laboratory (Cápsula) of PPC-UERJ, always during the same shift, no later than 8:00 AM.
Total Body Water
Time Frame: From enrollment to the end of treatment at 6 weeks.
The measure of the Total Body Water of the body composition will be analyzed using a Tetrapolar Bioelectrical Impedance Analyzer (InBody 370, BIOSPACE, Republic of Korea). The analyzer performs impedance measurements across five body segments (right arm, left arm, trunk, right leg, and left leg) using three different frequencies (5, 50, and 500 kHz), and provides separate body mass readings for each segment. Unit of Measured: in liters (L).
Lean Body Mass, Fat Mass, and Skeletal Muscle Mass
Time Frame: From enrollment to the end of treatment at 6 weeks.
The measures of body composition will be analyzed using a Tetrapolar Bioelectrical Impedance Analyzer (InBody 370, BIOSPACE, Republic of Korea). The analyzer performs impedance measurements across five body segments (right arm, left arm, trunk, right leg, and left leg) using three different frequencies (5, 50, and 500 kHz), and provides separate body mass readings for each segment. The following body composition components will be measured: Lean Body Mass: Measured in kilograms (kg). Fat Mass: Measured in kilograms (kg). Skeletal Muscle Mass: Measured in kilograms (kg).
Body Fat Percentage
Time Frame: From enrollment to the end of treatment at 6 weeks.
The Body fat percentage of the body composition will be analyzed using a Tetrapolar Bioelectrical Impedance Analyzer (InBody 370, BIOSPACE, Republic of Korea). The analyzer performs impedance measurements across five body segments (right arm, left arm, trunk, right leg, and left leg) using three different frequencies (5, 50, and 500 kHz), and provides separate body mass readings for each segment. Unit of measure: Expressed as a percentage (%).
Visceral Fat Area
Time Frame: From enrollment to the end of treatment at 6 weeks.
The visceral fat area of the body composition will be analyzed using a Tetrapolar Bioelectrical Impedance Analyzer (InBody 370, BIOSPACE, Republic of Korea). The analyzer performs impedance measurements across five body segments (right arm, left arm, trunk, right leg, and left leg) using three different frequencies (5, 50, and 500 kHz), and provides separate body mass readings for each segment. Unit of measure: square centimeters (cm²).
Basal Metabolic Rate
Time Frame: From enrollment to the end of treatment at 6 weeks.
Basal Metabolic Rate will be analyzed using a Tetrapolar Bioelectrical Impedance Analyzer (InBody 370, BIOSPACE, Republic of Korea). The analyzer performs impedance measurements across five body segments (right arm, left arm, trunk, right leg, and left leg) using three different frequencies (5, 50, and 500 kHz), and provides separate body mass readings for each segment. The device provides separate body mass readings for different body segments, being able to estimate the basal metabolic rate. The basal metabolic rate is directly proportional to the weight and amount of muscle. It was calculated from predictive formulas using the results of the body composition, and involves the data of age, sex and physical activity that is entered into the scale. Unit of measure: kilocalories per day (kcal/day).
Body Mass Index (BMI)
Time Frame: From enrollment to the end of treatment at 6 weeks.
Body Mass Index (BMI) is a clinical index that is used in bioimpedance to assess a person's weight. BMI is calculated by dividing the weight (in kg) by the height (in meters) squared. Unit of measure: kilograms per square meter (kg/m²).
Waist-to-Hip Ratio (WHR)
Time Frame: From enrollment to the end of treatment at 6 weeks.
The ratio of the circumference of the waist to the circumference of the hips, used as an indicator of cardiovascular risk. WHR was calculated by dividing the waist circumference in centimeters by the hip circumference. It is an element for the prognosis of cardiovascular events in adults. The cut-off index for cardiovascular risk is less than 0.85 for women and 0.90 for men. The unit of measurement is unitless.
Waist-to-Height Ratio (WHtR)
Time Frame: From enrollment to the end of treatment at 6 weeks.
The ratio of the circumference of the waist to height, used as an indicator of metabolic and cardiovascular risk. Height was measured using a vertical stadiometer graduated in centimeters and millimeters. Waist circumference was assessed using a tape measure graduated in centimeters and millimeters. The tape measure was placed midway between the iliac crest and the last rib. This anatomical point has the strongest correlation with abdominal adiposity. The values obtained were stratified into three categories: between 0.40 and 0.44 (lowest % fat, below the risk threshold); between 0.45 and 0.50 (moderate risk); between 0.50 and 0.56 (above the risk threshold). The unit of measurement is unitless.
Conicity Index
Time Frame: From enrollment to the end of treatment at 6 weeks.
Conicity index is a measure of body fat distribution, particularly visceral fat, calculated using body circumference measurements. The C Index (CI) was determined based on the measurement of body mass, height and waist circumference, in meters, representing an indicator of abdominal obesity, and is based on the principle that some people accumulate fat around the abdomen, with the consequent change in body shape. This index is calculated using the formula: C Index = waist circumference (m)/(0.109 x (√ body mass (kg)/height (m))). For the classification of cardiovascular risk, values ≥ 1.18 for women and ≥ 1.25 for men are determined. The unit of measurement is unitless.
Anthropometric measures
Time Frame: From enrollment to the end of treatment at 6 weeks.
Anthropometric measurements, as circumferences were assessed to evaluate the distribution of fat and other physical characteristics. The circumference measurements will be taken at the following sites, measured in centimeters (cm): neck, waist, hip, arm, and ankle.
Secondary Outcomes
- Epworth Sleepiness Scale (ESS)(From enrollment to the end of treatment at 6 weeks.)
- Functionality(From enrollment to the end of treatment at 6 weeks.)
- Lumbar spine flexibility(From enrollment to the end of treatment at 6 weeks.)
- Anterior Trunk Flexion Test(From enrollment to the end of treatment at 6 weeks.)
- Health-related quality of life(From enrollment to the end of treatment at 6 weeks.)
- Mental health(From enrollment to the end of treatment at 6 weeks.)
- Pittsburgh Sleep Quality Index (PSQI)(From enrollment to the end of treatment at 6 weeks.)
- Physical activity(From enrollment to the end of treatment at 6 weeks.)
- Cardiovascular responses(From enrollment to the end of treatment at 6 weeks.)
- Neuromuscular activation(From enrollment to the end of treatment at 6 weeks.)
- Muscle strength(From enrollment to the end of treatment at 6 weeks.)
- Pain Level(From enrollment to the end of treatment at 6 weeks.)