Effects of different small-sided games on blood lactate and GH/IGF-1 axis responses in young soccer players
- PDF / 864,198 Bytes
- 8 Pages / 595 x 792 pts Page_size
- 44 Downloads / 192 Views
Mojtaba Alashti1 · Hossein Shirvani2 Ordeghan2
· Reza Sabzevari Rad2 · Allahyar Noori
1
Department of Physical Education and Sport Science, Yadegare Imam Khomeini (RAH) Shahre-Rey Branch, Islamic Azad University, Tehran, Iran 2 Exercise Physiology Research Center, Life Style Institute, Baqiyatallah University Medical of Sciences, Tehran, Iran
Effects of different small-sided games on blood lactate and GH/IGF-1 axis responses in young soccer players Introduction Soccer is a popular sport that also has high physiological stress. Today, in the design of soccer training, efforts are being made to get the players ready to accept this load. The analysis of the soccer game shows that the players own the ball only 2% of the total time of the game and the remnant of it is based on the tactical approach without the ball (Hill-Haas, Coutts, Rowsell, & Dawson, 2008). In other words, the success of a team tactic depends on the ability of the players to work together in certain areas of the playing field (HillHaas et al., 2008). Therefore, specific soccer training usually includes practice games that are played with fewer people and smaller in size. This particular type of training is called small-sided games or SSGs (Hill-Haas et al., 2008; Rampinini et al., 2007). SSG exercises are often a part of a variety of training programs for adult players depending on the purpose of the exercise (Rampinini et al., 2007; Romero-Caballero & Campos-Vázquez, 2020). Scientists in various studies have assumed that SSGs can simulate the intensities and loads that fit a real soccer game and enhance the technical and tactical skills of soccer players, which has led to this practice as an effective training method in the field of science and practice facing popularity (Badin, Smith, Conte, &Coutts, 2016; Özcan, Eniseler, &Şahan, 2018). A research study on Norwegian
players has shown that SSGs can have an exercise intensity equivalent to 91% maximal heart rate (HRmax) or 85% VO2max (Hoff, Wisløff, Engen, Kemi, & Helgerud, 2002). However, little is known about the effects of SSG on physical parameters other than maximal aerobic capacity (Gabbett & Mulvey, 2008). Coaches increase training intensity both during the season and in the preseason by adding more players and using different SSGs. Reserchers, for example, demonstrated that increasing pitch size using different SSG formats would result in an increased HR and blood lactate responses in amateur soccer players (Rampinini et al., 2007). Another study examine the development of anaerobic threshold (85–90% of HRmax) (Little, 2009). With SSGs, we need to engage more players (such as 5-, 6-, 7-, and 8-a-side games). It is stated that acute SSG may elicit high cardiovascular and metabolic demands in untrained healthy adults. However, studies on SSG and the effects of these methods of training on GH and IGF-1 have been limited (Zouhal et al., 2020). Studies have furthermore shown that there is a regulatoryfeedback relationship between GH and IGF-1, whereby GH secretion leads to an increased hepatic IGF-1 produc
Data Loading...
