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We examined whether creatine monohydrate (CrM) and conjugated linoleic acid (CLA) could enhance strength gains and improve body composition (i.e., increase fat-free mass (FFM); decrease body fat) following resistance exercise training in older adults (> 65 y). Our study hypothesized that administering CrM and CLA would yield greater strength and body composition benefits than the placebo group over the six months of resistance exercise
Men (N=19) and women (N=20) completed six months of resistance exercise training with Creatine Monohydrate (5g/d) + Conjugated Linoleic Acid (6g/d) or placebo with randomized, double-blind, allocation.Outcomes included; strength and muscular endurance, functional tasks, body composition (DEXA scan), blood tests (lipids, liver function, CK, glucose, systemic inflammation markers (IL-6, C-reactive protein)), urinary markers of compliance (creatine/creatinine), oxidative stress (8-OH-2dG, 8-isoP) and bone resorption (Ν-telopeptides).
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Training | Behavioral | |||
| Creatine Monohydrate, Conjugated Linoleic Acid | Drug |
| Measure | Description | Time Frame |
|---|---|---|
| a. Muscle and bone mass b. Knee extension strength e. Creatine content f. Muscle oxidative capacity g. Aerobic power (oxygen consumption) | six months |
| Measure | Description | Time Frame |
|---|---|---|
| a. Functional capacity b. Strength with weight machines | six months |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Mark A Tarnopolsky, M.D., Ph.D. | McMaster University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| McMaster University Medical Center | Hamilton | Ontario | L8N 3Z5 | Canada |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 17912368 | Derived | Tarnopolsky M, Zimmer A, Paikin J, Safdar A, Aboud A, Pearce E, Roy B, Doherty T. Creatine monohydrate and conjugated linoleic acid improve strength and body composition following resistance exercise in older adults. PLoS One. 2007 Oct 3;2(10):e991. doi: 10.1371/journal.pone.0000991. |
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| ID | Term |
|---|---|
| D055948 | Sarcopenia |
| ID | Term |
|---|---|
| D009133 | Muscular Atrophy |
| D020879 | Neuromuscular Manifestations |
| D009461 | Neurologic Manifestations |
| D009422 | Nervous System Diseases |
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| ID | Term |
|---|---|
| D003401 | Creatine |
| D044243 | Linoleic Acids, Conjugated |
| ID | Term |
|---|---|
| D006146 | Guanidines |
| D000578 | Amidines |
| D009930 | Organic Chemicals |
| D000596 | Amino Acids |
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| D001284 | Atrophy |
| D020763 | Pathological Conditions, Anatomical |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D012816 | Signs and Symptoms |
| D000602 |
| Amino Acids, Peptides, and Proteins |
| D008041 | Linoleic Acids |
| D043371 | Fatty Acids, Omega-6 |
| D005231 | Fatty Acids, Unsaturated |
| D005227 | Fatty Acids |
| D008055 | Lipids |