Study | Publication year | Country | Branches | Unit/training | Study type | n | Risk factor* |
---|---|---|---|---|---|---|---|
Genetic factors | |||||||
Korvala [89] | 2010 | Finland | n/a | Conscripts | P | 192 | Yes |
Zhao [108] | 2016 | China | Army | Recruits | P | 1398 M | Yes (M) |
Late menarche | |||||||
Cosman [64] | 2013 | USA | Army | Military Academy | P | 136 F | Yes |
Knapik [81] | 2010 | USA | Air Force | Recruits BCT | P | 375 F | No |
Knapik [87] | 2008 | USA | Army | Recruits BCT | P | 920 F | No |
Knapik [88] | 2009 | USA | Marines | Recruits BCT | P | 571 F | No |
Lappe [56] | 2001 | USA | Army | Recruits BCT | P | 3758 F | No |
Shaffer [109] | 2006 | USA | Marines | Recruits BCT | R | 2962 F | No |
Trone [105] | 2014 | USA | Marine Corp Air Force Army | Recruits BCT | R | 597 F | Yes |
Muscular strength (lower) | |||||||
Blacker [161] | 2008 | UK | Army | Recruits | R | 11,937 M, 1480 F | No |
Heebner [157] | 2017 | USA | Army | Special Operation Forces | P | 95 | Yes |
Knapik [84] | 2007 | USA | Army | Band | R | 159 M, 46 F | No |
Kuikka [36] | 2013 | Finland | Army | Conscripts | R | 128,584 | Yes |
Mattila [38] | 2007 | Finland | Army | Conscripts | P | 149,750 M, 2345 F | Yes |
Nagai [92] | 2017 | USA | Army | Airborne Div | P | 275 | No |
Parr [153] | 2015 | USA | Army | Special Operations Forces | P | 106 | No## |
Roy [177] | 2012 | USA | Army | Brigade Combat Team# | R | 593 | Yes |
Ruohola [100] | 2006 | Finland | n/a | Recruits | P | 756 M | Yes (M) |
Sillanpää [51] | 2008 | Finland | n/a | Conscripts | R | 128,508 M | No (M) |
Wunderlin [107] | 2015 | Switzerland | Army | Recruits | P | 230 M | Yes (M) |
Physical fitness (low) | |||||||
Allsopp [159] | 2003 | UK | Navy | Recruits | R | 1287 M, 354 F | Yes |
Anderson [70] | 2015 | USA | Army | Light Infantry Brigade | R | 2101 | Yes |
Anderson [71] | 2017 | USA | Army | Light Infantry | R | 4384 M, 363 F | Yes |
Beck [140] | 2000 | USA | Marines | P | 624 M, 693 F | Yes | |
Bedno [72] | 2013 | USA | Army | IET | P | 8456 M | Yes (M) |
Bedno [35] | 2019 | USA | Army | Recruits BCT | R | 238,772 | No (M), yes (F) |
Bell [27] | 2000 | USA | Army | Recruits | P | 861 | Yes |
Blacker [161] | 2008 | UK | Army | Recruits | R | 11,937 M, 1480 F | Yes |
Brooks [73] | 2019 | USA | Army | Recruits BCT | R | 1460 M, 540 F | Yes |
Canham-Chervak [141] | 2000 | USA | Army | Recruits BCT | P | 655 M, 498 F | Yes |
Canham-Chervak [52] | 2006 | USA | Army | Recruits BCT | P | 1156 M, 746 F | Yes |
Cosio-Lima [54] | 2013 | USA | Army | Sergeants Major Academy | R | 149 | No |
Cosman [64] | 2013 | USA | Army | Military Academy | P | 755 M, 136 F | No |
Cowan [74] | 2012 | USA | Army | Trainees | P | 1568 F | Yes (F) |
Davey [76] | 2015 | UK | Marines | P | 1090 M | No (M) | |
Davey [127] | 2016 | UK | Marines | P | 1082 M | No (M) | |
Fallowfield [77] | 2018 | UK | Air Force | Recruits | P | 990 M, 203 F | Yes |
George [114] | 2012 | USA | Army | Combat medics | P | 1230 | No |
Grier [78] | 2017 | USA | Army | Infantry brigades | R | 4236 M | Yes (M) |
Grier [178] | 2011 | USA | Army | Ordinance school students | P | 4255 | Yes (M), no (F) |
Hall [179] | 2017 | UK | Army | Recruits | R | 3050 M | Yes (M) |
Hauret [180] | 2018 | USA | Army | Recruits BCT | P | 1181 | Yes (endurance) |
Heller [181] | 2020 | USA | Army | Recruits BCT | R | 227 F | Yes (F) |
Jones [34] | 2017 | USA | Army | Recruits BCT | R | 143,398 M, 41,727 F | Yes |
Keenan [172] | 2017 | USA | Multiple | Special Forces | P | 726 | Yes |
Kelly [80] | 2000 | USA | Navy | Recruits BCT | R | 86 F | No (F) |
Knapik [81] | 2010 | USA | Air Force | Recruits BCT | P | 1042 M, 375 F | Yes |
Knapik [145] | 2006 | USA | Army | Recruits BCT | P | 1174 M, 898 F | Yes |
Knapik [83] | 2013 | USA | Army | Brigade combat team# | P | 805 | No |
Knapik [182] | 2003 | USA | Army | R | 1414 M, 1166 F | Yes | |
Knapik [84] | 2007 | USA | Army | Band | R | 159 M, 46 F | No |
Knapik [85] | 2001 | USA | Army | Recruits | P | 182 M, 168 F | Yes |
Knapik [86] | 2008 | USA | Army | Paratrooper training | R | 1677 | Yes |
Knapik [87] | 2008 | USA | Army | Recruits BCT | P | 2147 M, 920 F | Yes |
Knapik [183] | 2009 | USA | Army | Recruits BCT | P | 2689 M, 1263 F | Yes |
Knapik [88] | 2009 | USA | Marines | Recruits BCT | P | 840 M, 571 F | Yes |
Kodesh [163] | 2015 | Israel | n/a | Combat Fitness Instructor Course | P | 158 F | Yes (F) (running) |
Krauss [168] | 2017 | USA | Army | Recruits BCT | R | 1900 F | Yes |
Kuikka [36] | 2013 | Finland | Army | Conscripts | R | 128,584 | No |
Kupferer [164] | 2014 | USA | Air Force | Trainees | R | 141 | Yes |
Lisman [118] | 2013 | USA | Marines | Officer candidate training | P | 874 | Yes (running) |
Martin [184] | 2018 | USA | Army | Light infantry division | R | 6865 | Yes |
Mattila [37] | 2007 | Finland | n/a | Conscripts | R | 133,943 M, 2044 F | Yes (invers) |
Mattila [38] | 2007 | Finland | Army | Conscripts | P | 149,750 M, 2345 F | Yes |
Moran [149] | 2013 | Israel | Army | Recruits | P | 44 | No |
Müller-Schilling [185] | 2019 | Germany | Army | Recruits | P | 774 | Yes |
Munnoch [91] | 2007 | UK | Marines | P | 1115 M | No (M) | |
Nye [151] | 2016 | USA | Air Force | Recruits BCT | R | 67,525 | Yes |
Psaila [94] | 2017 | Malta | n/a | Recruits BCT | P | 114 M, 13 F | Yes |
Rauh [186] | 2006 | USA | Marines | P | 824 F | Yes (F) | |
Reynolds [96] | 2009 | USA | Army | Infantry | P | 181 | Yes |
Reynolds [97] | 2002 | USA | Army | Construction engineers & Combat artillery soldiers | P | 313 | No |
Reynolds [98] | 2000 | USA | Marines | Winter mountain training | P | 356 | No |
Robinson [57] | 2016 | UK | Army | Recruits | P | 1810 | Yes (running) |
Rosendal [187] | 2003 | Denmark | n/a | Conscripts BCT | P | 330 | Yes |
Ruohola [100] | 2006 | Finland | n/a | Recruits | P | 756 M | Yes (M) |
Sanchez-Santos [65] | 2017 | UK | Marines | Recruits | P | 1082 M | No (M) |
Schneider [58] | 2000 | USA | Army | Airborne Div | R | 1214 | Yes |
Scott [122] | 2015 | USA | Army | Reserve Officer Training | R | 165 M, 30 F | No |
Sefton [137] | 2016 | USA | Army | Recruits IET | P | 1788 M | Yes (M) |
Shaffer [109] | 2006 | USA | Marines | Recruits BCT | R | 2962 F | Yes (F) |
Sharma [102] | 2019 | UK | Army | Infantry recruits | P | 562 M | Yes (M) |
Sharma [103] | 2011 | UK | Army | Infantry recruits | P | 468 M | Yes (M) |
Sillanpää [51] | 2008 | Finland | n/a | Conscripts | R | 128,508 M | No (M) |
Sormaala [39] | 2006 | Finland | n/a | Recruits | R | 118,149 | No |
Taanila [123] | 2010 | Finland | n/a | Conscripts | P | 944 M | Yes (M) |
Taanila [59] | 2012 | Finland | Army | Conscripts | P | 982 M | Yes (M) |
Trone [105] | 2014 | USA | Marine Corp Air Force Army | Recruits BCT | R | 900 M, 597 F | Yes |
Välimäki [188] | 2005 | Finland | Army | Conscripts | P | 179 | Yes |
Waterman [165] | 2010 | USA | Military Academy | R | 10,511 person years | Yes (invers) | |
Wilkinson [60] | 2009 | UK | Army | Infantry | P | 660 | No |
Wyss [68] | 2014 | Switzerland | Army | Recruits BCT | P | 1676 | No |
Wyss [189] | 2012 | Switzerland | Army | R | 459 | Yes | |
Zhao [108] | 2016 | China | Army | Recruits | P | 1398 M | No (M) |