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Activity profile and physiological response to football training for untrained males and females, elderly and youngsters: influence of the number of players
Author(s) -
Randers M. B.,
Nybo L.,
Petersen J.,
Nielsen J. J.,
Christiansen L.,
Bendiksen M.,
Brito J.,
Bangsbo J.,
Krustrup P.
Publication year - 2010
Publication title -
scandinavian journal of medicine and science in sports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.575
H-Index - 115
eISSN - 1600-0838
pISSN - 0905-7188
DOI - 10.1111/j.1600-0838.2010.01069.x
Subject(s) - heart rate , blood lactate , glycogen , medicine , football players , muscle fibre , zoology , endocrinology , football , blood pressure , skeletal muscle , biology , political science , law
The present study examined the activity profile, heart rate and metabolic response of small‐sided football games for untrained males (UM, n =26) and females (UF, n =21) and investigated the influence of the number of players (UM: 1v1, 3v3, 7v7; UF: 2v2, 4v4 and 7v7). Moreover, heart rate response to small‐sided games was studied for children aged 9 and 12 years (C9+C12, n =75), as well as homeless (HM, n =15), middle‐aged (MM, n =9) and elderly (EM, n =11) men. During 7v7, muscle glycogen decreased more for UM than UF (28 ± 6 vs 11 ± 5%; P <0.05) and lactate increased more (18.4 ± 3.6 vs 10.8 ± 2.1 mmol kg −1 d.w.; P <0.05). For UM, glycogen decreased in all fiber types and blood lactate, glucose and plasma FFA was elevated ( P <0.05). The mean heart rate (HR mean ) and time >90% of HR max ranged from 147 ± 4 (EM) to 162 ± 2 (UM) b.p.m. and 10.8 ± 1.5 (UF) to 47.8 ± 5.8% (EM). Time >90% of HR max (UM: 16–17%; UF: 8–13%) and time spent with high speed running (4.1–5.1%) was similar for training with 2–14 players, but more high‐intensity runs were performed with few players (UM 1v1: 140 ± 17; UM 7v7: 97 ± 5; P <0.05): Small‐sided games were shown to elucidate high heart rates for all player groups, independently of age, sex, social background and number of players, and a high number of intense actions both for men and women. Thus, small‐sided football games appear to have the potential to create physiological adaptations and improve performance with regular training for a variety of study groups.