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Trial registered on ANZCTR
Registration number
ACTRN12609001053213
Ethics application status
Approved
Date submitted
2/12/2009
Date registered
9/12/2009
Date last updated
10/07/2012
Type of registration
Retrospectively registered
Titles & IDs
Public title
Effect of muscle strength training on the muscular system, posture and balance in postmenopausal women .
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Scientific title
In postmenopausal women does the muscle strength training improve the balance, strength and muscular function?
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Secondary ID [1]
1175
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nil
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Universal Trial Number (UTN)
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Aging process in postmenopausal women
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Condition category
Condition code
Musculoskeletal
252508
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0
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Other muscular and skeletal disorders
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Women of exercise group performed muscular strengthening exercises of 60 minutes twice a week for three months. The exercise protocol consisted of warm-up, stretching, muscular strengthening of quadriceps, hamstring, calf muscle, paravertebral, and abdominal muscles as well as relaxing.
Muscular strength training started with 60% of one repetition maximum (1 RM) (2 series of 10-15 repetitions), achieving 85% until the end of the 3-month period (4 series of 6 repetitions each).
The exercise for the pelvic floor muscles consisted of performing 10 maximal contractions of the pelvic floor muscles kept for 6-8 seconds. At the end of a series of 10 contractions were performed three rapid contractions. The interval between a contractions was 6 seconds. The series were held in four positions: lying in the lateral, sitting, all fours and standing.
The exercise protocol was administered in groups up to 10 women by a physiotherapist.
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Intervention code [1]
255626
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Prevention
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Comparator / control treatment
Women of Control Group performed no type of physical exercise during 3 months after the initial evaluation
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Control group
Active
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Outcomes
Primary outcome [1]
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Balance improvement. Balance was evaluated by Standing Balance Test.
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Assessment method [1]
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Timepoint [1]
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at baseline and at 3 months after the initial evaluation
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Primary outcome [2]
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Strength and muscular function improvement.
The strength was evaluated using the 1 Repetition Maximum Test and The Sit-to-Stand Test.
The function of pelvic floor muscles was evaluated using perineometer and electromyography.
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Assessment method [2]
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Timepoint [2]
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at baseline and at 3 months after the initial evaluation
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Secondary outcome [1]
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The 6-minute walking test evaluation, in order to analyze the functional exercise capacity.
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Assessment method [1]
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Timepoint [1]
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at baseline and at 3 months after the initial evaluation
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Eligibility
Key inclusion criteria
Postmenopausal women within 5 years of menopause and sedentary.
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Minimum age
43
Years
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Maximum age
59
Years
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Sex
Females
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Can healthy volunteers participate?
Yes
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Key exclusion criteria
Smoking habits, hysterectomy, cardiorespiratory, neurologic and rheumatic diseases, orthopaedic problems, cognitive problems, vestibulopathies, diabetes mellitus, and recent history of bone fractures.
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Study design
Purpose of the study
Treatment
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Allocation to intervention
Randomised controlled trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Allocation was concealed and it was done by central randomisation by computer.
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Simple randomisation by using a randomization table created by a computer software.
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Masking / blinding
Blinded (masking used)
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Who is / are masked / blinded?
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Intervention assignment
Parallel
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Other design features
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Phase
Not Applicable
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Type of endpoint/s
Efficacy
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Statistical methods / analysis
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Recruitment
Recruitment status
Completed
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Date of first participant enrolment
Anticipated
9/04/2008
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Actual
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
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Actual
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Sample size
Target
60
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Accrual to date
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Final
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Recruitment outside Australia
Country [1]
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Brazil
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State/province [1]
2348
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Funding & Sponsors
Funding source category [1]
256113
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Charities/Societies/Foundations
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Name [1]
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State of Sao Paulo Foundation for Research (FAPESP)
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Address [1]
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R. Pio XI, 1500 - Alto da Lapa,
CEP 05468-901
Sao Paulo/SP - Brazil
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Country [1]
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Brazil
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Primary sponsor type
Individual
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Name
Daniela Cristina Carvalho de Abreu
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Address
Avenida Bandeirantes, 3900 - Monte Alegre
CEP 14049-900
Ribeirao Preto, SP
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Country
Brazil
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Secondary sponsor category [1]
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Individual
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Name [1]
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Cristine Homsi Jorge Ferreira
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Address [1]
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Avenida Bandeirantes, 3900 - Monte Alegre
CEP 14049-900
Ribeirao Preto, SP
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Country [1]
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Brazil
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
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Human Research Ethics Committee of the Ribeirao Preto School of Medicine, University of Sao Paulo
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Ethics committee address [1]
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Avenida Bandeirantes, 3900 - Monte Alegre CEP 14049-900 Ribeirao Preto, SP
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Ethics committee country [1]
258201
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Brazil
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Date submitted for ethics approval [1]
258201
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Approval date [1]
258201
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08/04/2008
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Ethics approval number [1]
258201
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259/CEP-CSE / FMRP-USP
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Summary
Brief summary
The aging process involves several changes in the body, including progressive reduction in strength and muscular function and postural control. Studies have suggested that the decreased muscular strength in women over 50 years old may be related to a lack of the hormone estrogen resulting from the menopause. However, little is known about the effect of hypoestrogenism in the first years of menopause on the balance and also the effect of a strength exercise program on these women. Therefore the study hypothesis is that the muscular strength training can promote muscle benefits, but also have a positive effect on the balance of these women, acting preventively to reduce the risk of falls.
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Trial website
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
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Address
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Country
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Phone
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Fax
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Email
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Contact person for public queries
Name
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Daniela Cristina Carvalho de Abreu
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Address
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Avenida Bandeirantes, 3900 - Monte Alegre
CEP 14049-900
Ribeirao Preto, SP
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Country
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Brazil
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Phone
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+55 16 36024413
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Fax
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+55 16 36024413
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Email
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[email protected]
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Contact person for scientific queries
Name
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Cristine Homsi Jorge Ferreira
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Address
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Avenida Bandeirantes, 3900 - Monte Alegre
CEP 14049-900
Ribeirao Preto, SP
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Country
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Brazil
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Phone
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+55 16 36023058
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Fax
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Email
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[email protected]
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No information has been provided regarding IPD availability
What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
Documents added manually
No documents have been uploaded by study researchers.
Documents added automatically
No additional documents have been identified.
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