Volume 20, Issue s1 pp. 14-23

Activity profile and physiological response to football training for untrained males and females, elderly and youngsters: influence of the number of players

M. B. Randers

M. B. Randers

Department of Exercise and Sport Sciences, Section of Human Physiology, University of Copenhagen, Copenhagen, Denmark

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L. Nybo

L. Nybo

Department of Exercise and Sport Sciences, Section of Human Physiology, University of Copenhagen, Copenhagen, Denmark

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J. Petersen

J. Petersen

Department of Orthopaedic Surgery, Amager Hospital, University of Copenhagen, Denmark

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J. J. Nielsen

J. J. Nielsen

Department of Exercise and Sport Sciences, Section of Human Physiology, University of Copenhagen, Copenhagen, Denmark

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L. Christiansen

L. Christiansen

Department of Exercise and Sport Sciences, Section of Human Physiology, University of Copenhagen, Copenhagen, Denmark

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M. Bendiksen

M. Bendiksen

Department of Exercise and Sport Sciences, Section of Human Physiology, University of Copenhagen, Copenhagen, Denmark

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J. Brito

J. Brito

Department of Exercise and Sport Sciences, Section of Human Physiology, University of Copenhagen, Copenhagen, Denmark

Centre of Research, Education, Innovation and Intervention in Sport, Faculty of Sport, University of Porto, Porto, Portugal.

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J. Bangsbo

J. Bangsbo

Department of Exercise and Sport Sciences, Section of Human Physiology, University of Copenhagen, Copenhagen, Denmark

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P. Krustrup

P. Krustrup

Department of Exercise and Sport Sciences, Section of Human Physiology, University of Copenhagen, Copenhagen, Denmark

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First published: 06 April 2010
Citations: 115
Corresponding author: Peter Krustrup, Department of Exercise and Sport Sciences, Copenhagen Muscle Research Centre, University of Copenhagen, The August Krogh Building, Universitetsparken 13, Copenhagen 2100-Ø, Denmark. Tel: +45 35 32 16 24, Fax: +45 35 32 16 00, E-mail: [email protected]

Abstract

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 (HRmean) and time >90% of HRmax 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 HRmax (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.

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