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Bone and muscle structure and function in relation to exercise and oestrogen replacement

Bone and muscle structure and function in relation to exercise and oestrogen replacement: a randomised double-blind placebo-controlled one-year-trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN49902272
Enrollment
80
Registered
2009-07-09
Start date
1996-09-01
Completion date
Unknown
Last updated
2015-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Osteopenia, sarcopenia Musculoskeletal Diseases Other disorders of bone density and structure

Interventions

Exercise (Ex): 1-year progressive physical training programme that included a supervised circuit training session twice a week and a series of exercises at home 4 days per week. Training was high-impa
the 12-month measurements were performed within a week of ending the treatments. This part of the trial was completed on the 30th August 1997. A 10-year follow-up measurement was also performed for t

Sponsors

University of Jyvaskyla (Finland)
Lead Sponsor

Eligibility

Sex/Gender
Female

Inclusion criteria

Inclusion criteria: 1. No serious medical conditions 2. No current or previous use of medications including oestrogen, fluoride, calcitonin, biophosphonates or steroids 3. Last menstruation at least 0.5 years but not more than 5 years ago 4. Follicle-stimulating hormone leves greater than 30 iu/litre 5. No contra-indications for exercise and HRT 6. Aged 50 - 57, caucasian post-menopausal women

Exclusion criteria

Exclusion criteria: 1. Serious medical conditions 2. Current or previous use of medications including oestrogen, fluoride, calcitonin, biophosphonates or steroids 3. Currently menstruating or having last menstruation within 0.5 years of the onset of study or longer than 5 years ago 4. Follicle-stimulating hormone leves less than 30 iu/litre 5. Contra-indications for exercise and HRT

Design outcomes

Primary

MeasureTime frame
1. Developing methods for the testing of material and structural changes in the trabecular and cortical bone sites of the lower leg in relation to high-impact exercise and hormone replacement: 1.1. Single photon absorption method 1.2. Computed tomography 1.3. Elastic wave propagation 1.4. Ultrasonography 2. The effects of a high-intensity, explosive-type physical training and hormonal replacement on lower leg muscle mass, structure and performance in post-menopausal women: 2.1. Ultrasonography 2.2. Computed tomography 2.3. Muscle biopsies 2.4. Maximal isometric strength measurements with dynamometer chair 2.5. Measurement of explosive muscle power; ability to elevate the body's centre of gravity during vertical jumps onto a contact mat 2.6. Muscle performance; maximal running speed over 20 m distance All measurements were done at baseline (0 months), at mid-point (6 months) and after completion of the treatments (12 months).

Secondary

MeasureTime frame
1. Examining the molecular mechanism responding to high-intensity, explosive-type physical training and hormonal replacement by using muscle biopsies, taken at baseline, after 0.5 years of study onset and after 1 year of study onset, by microarray and other applicable molecular methods 2. Examining the adaptation of bone collagen metabolism and the different types of muscle fibres to altered force transmission and oestrogen status (using serum and urine samples to determine the content of deoxypyridinoline in overnight (10 hour) samples and using immunohistochemical methods with respective antibodies All measurements were done at baseline (0 months), at mid-point (6 months) and after completion of the treatments (12 months).

Countries

Finland

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026