Academic journal article Journal of Physical Education and Sport

Assessment of a Perceived Exertion Session between the Coach and Sub17 Athletes during a Soccer Championship

Academic journal article Journal of Physical Education and Sport

Assessment of a Perceived Exertion Session between the Coach and Sub17 Athletes during a Soccer Championship

Article excerpt

Introduction

Sports training is a systematic activity that aims to provide morphological, metabolic and functional changes that increase performance (C. Foster et al., 2001; Kindermann, Simon, & Keul, 1979). Important variables for the prescription of training such as volume, intensity, frequency and training load control should be applied, to produce positive physiological adaptations. When these variables were increased randomly, and a training load control applied inadequately, these applications can cause physical and psychological damage to athletes (Halson, 2014). Therefore, the quantification of the training load is an important tool to achieve the expected results (Freitas, Nakamura, Miloski, Samulski, & Bara-Filho, 2014).

Several methods for internal and external training load quantification have been proposed in recent years (Borresen and Lambert, 2008; Halson, 2014), for example the practical and easy-to-apply way to prescribe and quantify the training load, was developed by (C. Foster, et al., 2001), using the rating of perceived exertion (RPE) of session. According to them, the calculation of the internal training load is performed by multiplying the RPE of the session (SRPE) by the duration of the training in minutes. This method has been used to evaluate athletes for several sports, due to the characteristics and scientific evidence (i.e. correlation with heart rate, oxygen intake, lactate) (Halson, 2014), currently sports teams using this method to evaluate athletes for different sports as judo (Agostinho et al., 2015), swimming (Wallace, Slattery, & Coutts, 2009), soccer (Alexiou and Coutts, 2008), in order to increase performance and avoid injuries.

However, for a precise prescription of training loads, it is important the agreement that the training load perceived by coach will the same as felt by the athlete (J. P. Foster, Carl, Kara, Esten, & Brice, 2001). Otherwise, the prescription of training loads become incorrect, can increasing the monotony of training and can influencing adaptive responses and leading the athletes to overtraining (Lehmann et al., 1997; Malisoux, Frisch, Urhausen, Seil, & Theisen, 2013). For example, Barroso et.al. (2014) found strong correlation between RPE in more experienced swimmers with respective coaches, compared with young athletes. Redkva et al., (2016) don't found differences between SRPE of adult soccer players and your coaches, during monitoring load of three weeks of training (physical, technical and tactical), this suggest that professional soccer players perform similarly to that intended by coaching staff. Despite these results, the studies evaluated a short time of the year, and to analyze SRPE for athletes and coach during the season or in main championship would show the reality of sports.

Currently, the competition levels start earlier for all sports and the evaluate of these athletes is necessary (Oliveira, Spineli-Silva, & De Oliveira, 2017). These, also occur in soccer by players of categories under 15 and under 17 years, due the interest in soccer teams. Thus, the present study aims to verify the association between the RPE of the session perceived by coach and athlete for the daily monitoring of training loads in young athletes during the mainly championship of the year, for this team.

Material & methods

Subjects

Twelve young soccer players (age: 15,8 ± 0,9 years; weight: 59,9 ± 11,7 Kg; height: 1,71 ± 0,09m; IMC: 20,5 ± 3,2Kg/m2; body fat: 12,7 ± 2,1%) and one coach volunteered to participate in this study. All athletes are regular training participants for at least 5 years, five days a week and on average 165 minutes per training session and participants in regional and national championships. The coach trained the team more than one year, and had five years of the experience as a coach. Experimental procedures, risks and benefits were explained for players and your parents or responsible before getting their signature on a written consent form, the procedures of this study were performed according to the Declaration of Helsinki 1996. …

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