Effects of Growth Hormone Administration on Muscle Strength and Body Composition in Men Over 50 Years Old
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
Undersøgelsestype
Undersøgelsestype
Tilmelding (Faktiske)
Tilmelding
Fase
Fase
- Fase 4
Kontakter og lokationer
Studiesteder
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-
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Rio de Janeiro, Brasilien, 21941-913
- Hospital Universitário Clementino Fraga Filho - UFRJ
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Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- Healthy and non-sedentary men aged 50-70 years
Exclusion Criteria:
- pituitary disease, GH use in the last 12 months, severe acute disease, hepatic and/or renal chronic disease, uncontrolled systemic arterial hypertension, diabetes mellitus, psychiatric disorders, history of cancer, non-treated hypogonadism and the presence of any other disease that could interfere with the somatotrophic axis.
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Forebyggelse
- Tildeling: N/A
- Interventionel model: Enkelt gruppeopgave
- Maskning: Enkelt
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
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Eksperimentel: growth hormone
GH group received an initial dose of 0.5 units (UI)/day (0.2 mg/day), with readjustments to 1.0 UI/day (0.4 mg/day) and 1.5 UI/day (0.6 mg/day) after 1 and 2 months of treatment, respectively.
The last GH dose will be maintained until the end of the study (6 months).
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GH group intervention: use of GH - initial dose of 0.5 UI/day (0.2 mg/day), with readjustments to 1.0 UI/day (0.4 mg/day) and 1.5 UI/day (0.6 mg/day) after 1 and 2 months of treatment, respectively.
The last GH dose will be maintained until the end of the study.
These GH dosages were based on the dose used for adults of the same age with GHD.
Subjects will be re-evaluated after 6 months of GH therapy or placebo according to muscle strength and body composition .The other group received placebo using the same scheme as the GH group.
Andre navne:
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Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Muscle strength after GH replacement
Tidsramme: after 6 months of GH replacement
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Muscle strength is evaluated for the maximum strength based on the concept of maximum repetition (1 MR) (i.e., the maximum load that can be performed using the correct technique for an exercise).The exercises evaluated were bench press and leg press.
To determine the load associated with 10 MR, each subject can initially performed 10 repetitions of each exercise with a sub maximum load, which is considered a load that was possible to mobilise.
Then, the loads are progressively increased and with a maximum of 3 trials, the load of 10 MR is reached.
During the 10 MR test, a 2-5 minute interval is provided between the attempts of each exercise.
After the load was obtained for a determined exercise, intervals not less than 10 minutes were given before moving on to the next exercise.
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after 6 months of GH replacement
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Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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body composition after growth hormone replacement
Tidsramme: after 6 months of growth hormone
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Body mass index is calculated using Quetelet's formula (weight/height2) and the percentage of body fat was calculated using the adipometer on seven cutaneous folds (tricipital, subscapular, suprailiac, pectoral, axillary, abdominal and thigh) according to the Pollock and Jackson protocol.
Abdominal circumference is measured using a non-elastic tape at the greatest diameter between the last ribs and the iliac crests.
The same person examined all subjects.
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after 6 months of growth hormone
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Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Efterforskere
Efterforskere
- Ledende efterforsker: Ana Beatriz tavares, Hospital Universitário Clementino Fraga Filho - UFRJ
Publikationer og nyttige links
Datoer for undersøgelser
Studer store datoer
Studiestart
Studiestart
Primær færdiggørelse (Faktiske)
Primær færdiggørelse
Studieafslutning (Faktiske)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- GH and men
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