Clinical trial · Interventional
Effects of Growth Hormone Administration on Muscle Strength and Body Composition in Men Over 50 Years Old
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
The growth hormone (GH) secretion declines gradually with age, with studies demonstrating a progressive reduction of 14% secretion per decade of life beginning in the second decade. Other studies suggest a disruption in GH secretion in elderly people. These findings suggest a possible association between growth hormone deficiency (GHD) and the ageing process.GH replacement is well known to improve body composition, leading to a decrease in total body fat and an increase in lean body mass. However, GH replacement has only shown an effect on muscle strength in GH-deficient adults subjected to long-term GH therapy. Few studies have evaluated the effect of GH replacement on muscle strength in elderly people engaged in a program of exercise training.Our purpose is to evaluate the effect of GH therapy on muscle strength in healthy, non-sedentary men over 50 years old.
Conditions
Conditions (1)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Healthy | — | UNRESOLVED | — |
Interventions
Interventions (1)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| growth hormone | Drug | — | UNRESOLVED |
Design
Arms and outcomes
Arms (1)
- type
- EXPERIMENTAL
- label
- growth hormone
- description
- 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).
- interventionNames
- Drug: growth hormone
Primary outcomes (1)
- measure
- Muscle strength after GH replacement
- timeFrame
- after 6 months of GH replacement
- description
- 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.
Eligibility
Eligibility (as posted)
- Sex
- Male
- Minimum age
- 50 Years
- Maximum age
- 70 Years
Show eligibility criteria text
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.
References
Publications (1)
- DERIVEDTavares AB, Micmacher E, Biesek S, Assumpcao R, Redorat R, Veloso U, Vaisman M, Farinatti PT, Conceicao F. Effects of Growth Hormone Administration on Muscle Strength in Men over 50 Years Old. Int J Endocrinol. 2013;2013:942030. doi: 10.1155/2013/942030. Epub 2013 Dec 8. PMID 24382963