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| Name | Class |
|---|---|
| Conselho Nacional de Desenvolvimento CientÃfico e Tecnológico | OTHER_GOV |
| Brazilian National Institute of Hormones and Women's Health | UNKNOWN |
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Despite the importance of preventing muscle mass loss during senescence, only a few studies have investigated the relationship between diet and muscle mass in postmenopausal women. Therefore, the aim of this study is to investigate whether controlled protein consumption at the current Recommended Daily Allowance (RDA = 0.8 g/kg body weight) or twice the RDA (1.6 g/kg body weight) affects skeletal muscle mass, strength, and physical performance in postmenopausal women. In this parallel-group trial, participants were randomized for 6 months to low glycemic index diets with controlled protein consumption at the current RDA or twice the RDA, aimed to balance energy needs.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| High Protein Diet | Experimental | Low glycemic index dietary plan with 1.6 g/kg/day of protein for 6 months |
|
| Control Diet | Active Comparator | Low glycemic index dietary plan with 0.8 g/kg/day of protein for 6 months |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| High Protein Diet | Other |
| ||
| Control Diet |
| Measure | Description | Time Frame |
|---|---|---|
| Change in whole-body and appendicular lean mass | measured by dual-energy X-ray absorptiometry | 6 months |
| Measure | Description | Time Frame |
|---|---|---|
| Change in isometric hand grip strength | measured by dynamometry | 6 months |
| Change in usual gait speed | in a 4-m course | 6 months |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Poli Mara Spritzer, MD PhD | Federal University of Rio Grande do Sul | Study Director |
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| ID | Term |
|---|---|
| D009133 | Muscular Atrophy |
| ID | Term |
|---|---|
| D020879 | Neuromuscular Manifestations |
| D009461 | Neurologic Manifestations |
| D009422 | Nervous System Diseases |
| D001284 | Atrophy |
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| ID | Term |
|---|---|
| D000073600 | Diet, High-Protein |
| ID | Term |
|---|---|
| D004035 | Diet Therapy |
| D044623 | Nutrition Therapy |
| D013812 | Therapeutics |
| D004032 | Diet |
| D009747 |
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|
| Change in systolic blood pressure | in mmHg | 6 months |
| Change in diastolic blood pressure | in mmHg | 6 months |
| Change in fat mass | measured by dual-energy X-ray absorptiometry | 6 months |
| Change in resting metabolic rate | measured by indirect calorimetry | 6 months |
| Change in total cholesterol, high-density lipoprotein cholesterol, and triglycerides | determined by colorimetric-enzymatic methods | 6 months |
| Change in glucose | determined by the hexokinase method | 6 months |
| Change in insulin | measured by chemiluminescence immunoassays | 6 months |
| Change in high-sensitivity C-reactive protein | measured by nephelometric method | 6 months |
| D020763 |
| Pathological Conditions, Anatomical |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D012816 | Signs and Symptoms |
| Nutritional Physiological Phenomena |
| D000066888 | Diet, Food, and Nutrition |
| D010829 | Physiological Phenomena |