Copyright: ©Author(s) 2026.
World J Meta-Anal. Mar 18, 2026; 14(1): 111108
Published online Mar 18, 2026. doi: 10.13105/wjma.v14.i1.111108
Published online Mar 18, 2026. doi: 10.13105/wjma.v14.i1.111108
Table 4 Timing of acute Achilles tendon rupture and environmental factors
| Ref. | Number of players | Number of Achilles | Preseason practice | Preseason game | Regular season | Practice session during regular season | Post-season game | Quarter | Artificial surface | Grass | Indoor/outdoor | Weather conditions |
| Chopra et al[14], 2023 | 5 | 10 | n/r | n/r | n/r | n/r | n/r | n/r | n/r | n/r | n/r | n/r |
| Krill et al[9], 2017 | 44 | 44 | n/r | n/r | 44 | n/r | 1 | 1st: 17, 2nd: 15, 3rd: 6, 4th: 5 | 20 | 24 | n/r | n/r |
| Parekh et al[8], 2009 | 28 | 31 | 6 | 5 | 20 | 0 | n/r | 1st: 6, 2nd: 8 | 15 | 16 | Indoor: 5, outdoor: 26 | Sunny: 9, rainy: 9, cloudy: 7, average temperature: 69.7 |
| Yang et al[10], 2019 | 80 | 80 | n/r | n/r | n/r | n/r | n/r | n/r | n/r | n/r | n/r | n/r |
| Bi et al[4], 2023 | 52 | 52 | n/r | n/r | n/r | n/r | n/r | n/r | n/r | n/r | n/r | n/r |
| Ready et al[11], 2021 | 101 | 101 | 55 | 10 | 34 | 2 | 1 | n/r | 57 | 44 | n/r | Average temperature: 67 |
| McCullough et al[7], 2014 | 9 | 9 | n/r | n/r | n/r | n/r | n/r | n/r | n/r | n/r | n/r | n/r |
| Jack et al[6], 2017 | 95 | 98 | 63 | n/r | 35 | n/r | n/r | n/r | n/r | n/r | n/r | n/r |
| Krill et al[15], 2018 | 98 | 109 | n/r | n/r | n/r | n/r | n/r | n/r | n/r | n/r | n/r | n/r |
| Trofa et al[5], 2017 | 21 | 21 | n/r | n/r | n/r | n/r | n/r | n/r | n/r | n/r | n/r | n/r |
| Mai et al[13], 2016 | 80 | 80 | n/r | n/r | n/r | n/r | n/r | n/r | n/r | n/r | n/r | n/r |
| Barton et al[12], 2023 | 63 | 63 | n/r | n/r | n/r | n/r | n/r | n/r | n/r | n/r | n/r | n/r |
- Citation: Butler JJ, Hedbany D, Lin CC, Vargas L, Kingery MT, Mercer NP, Lezak BA, Tham A, Rubin J, Kennedy JG. Low return to play and performance in national football league athletes after Achilles tendon rupture: A systematic review. World J Meta-Anal 2026; 14(1): 111108
- URL: https://www.wjgnet.com/2308-3840/full/v14/i1/111108.htm
- DOI: https://dx.doi.org/10.13105/wjma.v14.i1.111108