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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03367585
Other study ID # 306/15
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date February 1, 2018
Est. completion date April 22, 2020

Study information

Verified date October 2019
Source University of Sao Paulo General Hospital
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Introduction: In Brazil, a person who is sixty years old or more is considered elderly. The incidence of osteoporosis and osteopenia has been increasing, as have fractures resulting from falls. Vitamin D deficiency can cause muscular atrophy in type II fibers (fast contraction and strength), which can increase the risk of falls. The aging process produces reduction in the ability of postural control system to maintain postural balance, which may increase postural instability and consequently increase the elderly risk to falls. Objective: To evaluate if vitamin D supplementation associated with regular exercise in vulnerable older women improves muscle strength and postural balance in 12 weeks. Methods: This will be a randomized prospective clinical trial, double blind, placebo-controlled intervention. Will be part of the study 40 elderly women vulnerable, who meet the inclusion criteria and that will be coming from the community through calls made by radio and social network. The volunteer will undergoing to blood test, body composition and bone mineral density, Mini Mental State Examination, Geriatric Depressive Scale, Falls Efficacy Scale, WHOQOL-OLD and WHOQOL-BREF instruments, functional capacity tests (MiniBEST, Time up and Go, Chair Rising Test, Six-minute walk test), muscular strength assessment (isokinetic dynamometry, handgrip and 1RM test) and postural balance (AccSway force platform for static postural balance and NeuroCom's Balance Master for dynamic postural balance) before and after 12 weeks of intervention with vitamin D supplementation and resistance and postural balance exercise. The intervention that will be perform during the 12 weeks with a progressive resistance training program.


Recruitment information / eligibility

Status Completed
Enrollment 46
Est. completion date April 22, 2020
Est. primary completion date December 1, 2018
Accepts healthy volunteers No
Gender Female
Age group 60 Years to 75 Years
Eligibility Inclusion Criteria:

1. Age > 60 years;

2. Osteoporosis or osteopenia (bone mineral density lower than -1.5 standard deviations of the T-score);

3. Present hypovitaminosis D (<30 nmol / L);

4. Do not practice regular resistance exercise;

5. Can not have an injury in lower limbs at least on the last three months,;

6. Be able to perform independent gait without climbing for at least 100 meters;

7. Be independent in your daily life activities;

8. Do not present restrictions for the practice of resistance exercises, including having performed a recent exercise test (maximum 6 months);

9. Do not use medications such as estrogen's, diuretics, to improve bone mass;

10. Do not use dietary supplements with vitamin D;

11. Do not present hyperparathyroidism, diabetes, uncontrolled hypertension, hyperprolactinemia, hypercalciuria, renal lithiasis or elevated serum calcium.

Study Design


Intervention

Dietary Supplement:
Physical exercise + Vitamin D3
Strength exercise + Supplementation of vitamin D3 50,000 IU / week
Other:
Physical exercise
Strength exercise

Locations

Country Name City State
Brazil Julia Maria DÀndrea Greve São Paulo

Sponsors (1)

Lead Sponsor Collaborator
University of Sao Paulo General Hospital

Country where clinical trial is conducted

Brazil, 

Outcome

Type Measure Description Time frame Safety issue
Primary Postural balance - semi static - change Evaluation of postural balance - AccSway force platform for semi static postural. The arithmetic mean of the results was calculated from the three tests conducted under each condition, and was processed using the Balance Clinic software. The following parameters were used to measure the stability of the participants: medial-lateral and anteroposterior amplitude (cm), the mean velocity calculated from the total displacement of the center of pressure (COP) in all directions (cm/s), and the elliptical area encompassing 95% of the displacement from the COP (cm2). The following parameters were used to measure the stability of the participants: medial-lateral and anteroposterior amplitude (cm), the mean velocity calculated from the total displacement of the center of pressure (COP) in all directions (cm/s). This measure will be performing before; after the innervation (12 weeks strength and postural balance exercise) and six months after the intervention (six months follow up).
Secondary Postural balance - dynamic - change Evaluation of dynamic postural balance - The postural balance assessment (posturography) will be perform on the NeuroCom Balance MasterĀ® force platform system (NeuroCom International, Inc., Clackamas, OR, USA). The variables will be the mean sway speed (cm/s) on a stable surface and an unstable surface; and the mean sway in the anteropoterior direction and mediolateral (cm) direction at the same conditions. The variables will be the mean weight transfer index (%), mean movement time (s) and mean impact index. This measure will be performing before; after the innervation (12 weeks strength and postural balance exercise) and six months after the intervention (six months follow up).
Secondary Muscular strength - Hand Grip - change Evaluation of muscular strength improvement- hand grip strength (HGS). HGS assessment was performed using a Jamar hand dynamometer, measured in kilograms (kg), which is adopted by the American Society of Hand Therapists (ASHT). This measure will be perform before and after the intervation (12 weeks strenght and potural balance exercise).
Secondary Muscular strength - Isokinetic dynamometry - change Evaluation of muscular strength improvement - Isokinetic dynamometry will be use to determine knee extension and flexion strength using the Biodex Multi-Joint System 3 (Biodex MedicalTM, Shirley, NY, USA). The isokinetic variables used were maximum peak torque corrected for body weight (%), and total work (J). This measure will be performing before; after the innervation (12 weeks strength and postural balance exercise) and six months after the intervention (six months follow up).
Secondary Muscular strength - 1 maximal repetition (RM)- change Evaluation of muscular strength improvement - 1RM test. One-repetition maximum in weight training is the maximum amount of force that can be generated in one maximal contraction (kg). This measure will be performing before; after the innervation (12 weeks strength and postural balance exercise) and six months after the intervention (six months follow up).
Secondary Body composition and bone mineral density - change Evaluation of body composition (area=cm2; BMC=g and BMD=g/cm2) and bone mineral density (BMD=g/cm2; T-score) This measure will be performing before; after the innervation (12 weeks strength and postural balance exercise) and six months after the intervention (six months follow up).
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