Example Ovid Medline search, to be adapted for other databases
| 1 | Aging/ |
| 2 | Exp aged/ |
| 3 | (65 adj2 (years or age* or old*)) |
| 4 | (old* adj (adult* or people or person* or population* or men or women)) |
| 5 | (elder* or senior* or geriatric* or ?enarian or ag?ing) |
| 6 | ((age* or aging or old* or elder*) adj1 (musc*)) |
| 7 | 1 or 2 or 3 or 4 or 5 or 6 |
| 8 | Vitamin D/ |
| 9 | (cholecalciferol* or calciferol* or ergocalciferol*) |
| 10 | (supplements or dietary supplements) |
| 11 | ((vitamin D* or cholecalciferol or calciferol* OR ergocalciferol) adj supplementation) |
| 12 | 8 or 9 or 10 or 11 |
| 13 | Muscle Development/ |
| 14 | Muscle, Skeletal/ |
| 15 | (Skeletal muscle adj2 (atrophy or sarcopenia or wasting or loss or deterioration)) |
| 16 | Muscle Strength/ |
| 17 | (skeletal muscle mass or size or fibres or fibers or area) |
| 18 | (musc* adj2 (function* or power or strength)) |
| 19 | (musc* adj2 (grow* or hypertrophy or size or mass or csa or cross sectional area or volume)) |
| 20 | Body Composition/ |
| 21 | (lean adj3 mass) |
| 22 | (protein adj2 (turnover or synthesis or breakdown)) |
| 23 | (nitrogen adj2 (balance or turnover or synthesis or breakdown or retention or loss or retain*)) |
| 24 | Sarcopenia/ |
| 25 | 13 or 14 or 15 or 16 or 17 or 18 or 19 or 20 or 21 or 22 or 23 or 24 |
| 26 | Exp exercise/ |
| 27 | (resistance exercise or resistance exercise training) |
| 28 | ((resistance or strength or weight or cardio or aerobic) adj3 (train* or condition* or exercise* or lift*)) |
| 29 | (physical adj3 (activit* or exercise* or train* or exertion* or endurance* or therap* or conditioning or fitness)) |
| 30 | (exercise adj3 (train* or intervention* or protocol* or program* or therap* or regim* or activit*)) |
| 31 | 26 or 27 or 28 or 29 or 30 |
| 32 | 7 and 12 and 25 and 31 |
| 33 | Limit 32 to humans |
| 34 | Remove duplicates from 33 |