Abstract
Abstract Due to the high intensity of competitive sports, the anaerobic power is a very important physical capacity for most sports. However, the diverse surfaces were these sports may interfere in the performance of this capacity. In running-based sports, the Running Anaerobic Sprint Test – RAST is largely used to evaluate anaerobic power. Considering the specificity of each sport, it is suggested to apply this test on the surface that it is played. Thus, the aim of the present study is to analyze the performance of RAST on different surfaces. The sample was composed by 10 subjects, mean age 20.2 ± 0.9 years old, mean height 1.8 ± 0.1 meters, mean body weight 77.4 ± 15.9 kg, and practice time of 6.0 ± 2.0 years. RAST was conducted on three different surfaces (hard, grass and sand). The maximum and minimum power and the fatigue index were compared between the surfaces. The results indicate that maximum and minimum power were lower in sand when compared to grass and hard surfaces. However, the fatigue index did not change. So, we observed that the surface is an important factor in RAST performance.
Highlights
The need for performance improvement in sports has driven sports science to develop ways to improve athletes’ performance[1]
Regarding Fatigue Index, there was no difference among the surfaces (p>0.05)
The results showed lower minimum and maximum strength on the sand when compared to cement and grass, with no difference between the later surfaces, and with no difference regarding fatigue index in all surfaces
Summary
The need for performance improvement in sports has driven sports science to develop ways to improve athletes’ performance[1]. The anaerobic system has proven to be extremely important in several disciplines, mainly on those that are intermintent[2]. The importance of anaerobic system on mainly aerobic disciplines is due to the intensity overcome the volume in many situations on collective sports[3]. Techniques to evaluate anaerobic power are extremely important to monitor the efficiency[3]. Tests like Wingate[6], that uses short distances like 10 or 20 meters sprints and RAST - Running Anaerobic Sprint Test[7] are used to evaluate anaerobic power in sports. RAST is widely used in disciplines where technical expertise is needed when using intermittent running on its practice[8,9,10], confirming the specificity principle[11]. RAST results allow obtaining the fatigue index from the athlete to monitor physical conditioning[12]
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