MOTOR ACTIVITIES OF SOCCERS IN MATCH HELD AT DIFFERENT TEMPERATURE CONDITION
Keywords:
Motor activities, youth soccer, temperaturesAbstract
Motor activities and some football skills reported to young players during varied heat of the weather are subject of actual researches.
The aim of this study is to find out the changes of specific parameter performances during different levels: low (LT):12-16℃ and hot (HT):32-36℃ of temperatures.
Methodology: Two young categories playing in Tunisian football championship (their ages were 15-16 years: n= 11, height, 165.7± 1.65 cm, weight, 62.4 ± 2.17 kg, sport stage 7±0.8 years, and 17-18 years: n= 10, height, 169±2.82 cm, weight, 63.7±2.25 kg, stage 9±1.2 years) were observed during the matches (n=8) in (LT) and (n=7) in (HT), using GPS monitor along with their movements with and without the ball. All observed selected players participated in full matches (90 min).
There were significant changes in the performances of the studied variables of 15-16 years old in high speed, which decreased from 383 m in (LT) to 285 m in (HT), at p<0.05. The increased speed, decrease from 944 m to 719 m, P<0.05. The Mean of précised passes (n= 13.5 in (LT) to n= 7.4 in (HT), p<0.05, and the Mean of non précised (from n=5.2 to n=10.8). In contrast the low intensity of the course and the course with the ball respectively changed positively (from 2054 m to 2299 m, and from 144 m to 179 m, <0.05). So the performances were better during (HT), The older category provides the same changes of performances either in motor activities and in some technique skills.
In order of these findings we appreciate that exercises provided by the physical coaches should be in intensive form of charge during (LT) and with moderate intensity during the (HT) level similarly for the two categories.
References
Armgrimsson, S. A. (2003). Relation of heart rate 2% VO2peak during sub-maximal exercise in the heat, J.Appl. Physiol, 82(6) pp. 2028-2035.
Babkin, A., & Dubrovsky, V. (2003). Physical adaptation and acclimatization of Sportsman to a hot climate and methods of their correction. Theory and practice of football. No3.
Ben Said, N., Galamazov, S., & Tsherva, B. (2005). The specific ability of the football players during hot weather: a short program for to its development in the youths through the study of the influenced factors. Prince Faisal award for the sport scientific researches.
Dang, kuok Bao (1998). Hygienic estimation of training process of young footballers in conditions of hot and moist Climate of Vietnam with using of means of local cooling. Phd dissertation, RGAFK, Moscow.
Deren, T. M., Coris, Eric E., Casa, Douglas J., De Martini, Juli K., Bain, Anthny R., Wals, Steve M., & Jay, Ollie. (2014). Maximum heat loss potential is lower in football linemen during NCAA summer training camp due to lower self-generated air flow. Journal of Str. And Cond. Research: doi:10.1519/JSC.000000000000427.
Hazzaa, H. (1997). Physiology of physical condition at youth and juniors: the physiologic basics and the acclimation for training. Hilal Edition, Riyadh.
Inoubli, M., Ben Said, N., Guerova, S., & Gharbi, A. (2013). Effect of training programs under condition of hyperthermia on speed resistance and kick accuracy indexes in football players. Bulletin of the T.H. Shevchenko National Pedagogical University. The Series: Pedagogic sciences. Physical education and sport. 2, Vol. 107. Chernihiv. P. 82-85.
Jose, G. A. (2000). Stroke volume during exercise: interaction of environment. Am. J. Physiol. Heart Circ. Physiol., 278:H321-330.
Luhtanen, P., Belinskij, A., Hayrinen, M., Vattinen, T. (2001). A comparative tournament analysis between Euro 1996 and 2000 in soccer. Int. Jour. Of Performance Analysis in sport, 1(1). 74-82.
Margo, M., Juan, M.A., Bergeron, M.F., Dvorak, J., Miller, S., Migliorini, S., Gurcharan, Sing D. (2012). Br. J Sports Med. 46 (11):800-804.
Michele, R.Di., Di Renzo, A.M., Ammazalorso, S., Merni, F. (2009). Comparison of physiological responses to an incremental running test on treadmill, natural grass, and synthetic turf in young soccer players. J Str.Cond research. 23. pp. 939-945.
Nielsen, B & Nybo, L. (2003). Celebral changes during exercise in the heat. Sports Med. 33: pp. 1-11.
Philippaerts, R.M., Vaeyens, R., Janssen, M., Van Renterghhem, B., Matthys, D., Craen, R. (2006). The relationship between peak heigh velocity and physical performance in youth soccer players. J. Sports Sci. 24. pp. 221-230.
Roy, L.P.G., Jentjen. (2002). Heat stress increases muscle glycogen use but reduces the oxidation of ingested carbohydrates during exercises. Appl. Physiol. 92: 1562-1572.
Saat, M, (2002). Effects of exercises in the heat on thermoregulation of Japanese and Malaysian. J. Physiol. Anthropol. appl. human Sci. 24:267-275.
Sigurbjorn, A. (2003). Relation of heart rate percent oxygen peak during sub-maximal exercise in the heat. Appl. Physiol. 94:1162-1168.
Stroyer, J., Hansen, L., & Klausen, K. (2004). Physiological profile and activity pattern of young soccer players during the match play. Med. Sci. Sports Exerc. 36. pp.168-174
Valquer, W., Barros, T.L., Sant Anna, M. (1998). High intensity motion pattern analyses of Brazilian elite soccer players. IV world congress of national analysis of sport FCDEF-up Porto. p. 80.
Wenger, C. B. (2001). Human adaptation to hot environments. In text books of military medicine: Medical aspects of harsh environments (Edited by K.B. Pandolf & R.E. Burr). pp. 55-86.