Table 1. Studies included in the quantitative description of seasonal variations in physical fitness.
Study | Sample | N (Age) | Time points | Study | Sample | N (Age) | Time points | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
PPS | BCP | MCP | ECP | PPS | BCP | MCP | ECP | ||||||
(Aziz, Tan & Teh, 2005) | Elite Singapore | 41 (25.7) | X | X | X | X | (Krustrup et al., 2006) | 1st & 2nd League Denmark | 15–20 (adult) | X | X | X | |
(Bonuccelli et al., 2012) | Elite Italy | 10 (26.7) | X | X | X | X | (Lago-Peñas et al., 2013) | Professional Spain | 42 (25) | X | X | X | |
(Boullosa et al., 2013) | Elite Spain | 12 (24) | X | X | (Link & de Lorenzo, 2016) | Professional Germany | 428 (adult) | X | X | ||||
(Bradley et al., 2011) | Elite Denmark | 10 (adult) | X | X | X | X | (Los Arcos et al., 2015) | Professional Spain | 14 (20.6) | X | X | ||
Elite England | 15 (U19) | X | X | X | X | (Malliou et al., 2003) | Professional Greece | 19 (27.2) | X | X | |||
(Bunc, Hráský & Skalská, 2015) | Elite Czech Republic | 45 (21.9) | X | X | X | (Manzi et al., 2013) | Elite Italy | 18 (28.4) | X | X | |||
(Campos-Vazquez et al., 2016) | Professional Spain | 12 (27.7) | X | X | (Meckel et al., 2018) | Professional Israel | 18 (22–32) | X | X | X | |||
(Casajus, 2001) | Elite Spain | 15 (25.8) | X | X | (Metaxas et al., 2006) | Elite Greece | 10–12 (18.1–18.2) | X | X | X | X | ||
(Castagna et al., 2011) | Elite Italy | 14 (25) | X | X | (Michalczyk et al., 2008) | Professional Poland | 19 (26.1) | X | X | ||||
(Castagna et al., 2013) | Elite Italy | 18 (28.6) | X | X | (Mohr, Krustrup & Bangsbo, 2003) | Professional Denamark | 10 (26.4) | X | X | X | |||
(Clark et al., 2008) | Elite England | 10–22 (25) | X | X | X | (Mohr, Krustrup & Bangsbo, 2002) | Elite Denmark | 11 (24.0) | X | X | X | ||
(Clemente et al., 2021) | Professional Portugal | 25 (28.1) | X | X | (Morgans et al., 2014) | Professional England | 6 (25.7) | X | X | X | |||
(D’Ascenzi et al., 2013) | Professional Italy | 23 (26.6) | X | X | X | X | (Ostojic, 2003) | Elite Serbia | 30 (23.5) | X | X | X | X |
(Devlin et al., 2017) | Elite Australia | 18 (25.5) | X | X | X | X | (Ostojic et al., 2009) | Elite Serbia | 12 (25.8) | X | X | ||
(Dunbar, 2002) | Professional England | 11 (NS-adults) | X | X | X | X | (Owen et al., 2018) | Elite European | 22 (24) | X | X | ||
(Edwards, Macfadyen & Clark, 2003) | Professional England | 12 (26.2) | X | X | (Padron-Cabo et al., 2018) | Professional Spain | 519 (adult) | X | X | X | |||
(Eliakim et al., 2018) | Professional Israel | 31(NS-adults) | X | X | (Papadakis, Patras & Georgouli, 2015) | Professional Greece | 10 (23.6) | X | X | X | X | ||
(Eniseler et al., 2012) | Elite Turkey | 14 (25.8) | X | X | (Rampinini et al., 2007b) | Professional Italy | 20 (26.4) | X | X | X | |||
(Fessi et al., 2016) | Professional Qatarl | 17 (23.7) | X | X | X | (Reinke et al., 2009) | Professional Germany | 10 (20–36) | X | X | X | ||
(Haritodinis et al., 2004) | Elite Greece | 12 (25) | X | X | X | (Requena et al., 2017) | Professional Spain | 19 (26.2) | X | X | X | ||
(Iaia et al., 2009b) | Professional Denmark | 12 (22.4) | X | X | X | (Silva et al., 2013b) | Professional Portugal | 13 (25.7) | X | X | X | ||
(Iga et al., 2014) | Professional England | 35 (20.4) | X | X | X | X | (Silva et al., 2011) | Professional Portugal | 18 (25.7) | X | X | X | X |
(Kalapotharakos, Ziogas & Tokmakidis, 2011) | Elite Greece | 12 (25) | X | X | (Suda et al., 2012) | Professional Japan | 21 (24.7) | X | X | X | |||
(Koundourakis et al., 2014) | Professional Greece | 22–23 (23.8–25.5) | X | X | X | (Zoppi et al., 2006) | Professional Brazil | 10 (18.2) | X | X | |||
(Krustrup et al., 2003) | Elite Denmark | 10 (adult) | X | X | X |
Note:
N, sample size; PPS, prior pre-season; BCP, beginning competition phase; MCP, middle competition phase; ECP, end competition phase.