Search strategy for the MEDLINE database
| Search set Medline | Search set Medline |
| #1 child* [mh] | #21 aerobic fitness [tw] |
| #2 boys [tw] | #22 aerobic capacity [tw] |
| #3 girls [tw] | #23 cardiorespiratory fitness [mh] |
| #4 teen* [tw] | #24 cardiorespiratory endurance [tiab] |
| #5 pediatric* [mh] | #25 21 OR 22 OR 23 OR 24 |
| #6 adolescents [mh] | #26 15 OR 20 OR 25 |
| #7 youth [tw] | #27 Europ* [tiab] |
| #8 young* [tiab] | #28 Australia* [tiab] |
| #9 1 OR 2 OR 3 OR 4 OR 5 OR 6 OR | #29 Asia* [tiab] |
| 7 OR 8 | #30 Africa* [tiab] |
| #10 fitness [tiab] | #31 27 OR 28 OR 29 OR 30 |
| #11 fitness level [tw] | #32 9 AND 26 NOT 31 |
| #12 physical fitness [mh] | |
| #13 physical performance [tw] | Filters: Case Reports, Clinical Trial, Journal Article, Observational Study, Randomized Controlled Trial |
| #14 explosive conditioning [tw] | |
| #15 10 OR 11 OR 12 OR 13 OR 14 | |
| #16 muscle strength [mh] | |
| #17 muscular power [tw] | |
| #18 muscular fitness [tiab] | |
| #19 explosive strength [tw] | |
| #20 16 OR 17 OR 18 OR 19 |