Physical Fitness and Learning Achievement Academic in Children Aged 10-12 years

The purpose of the study. The purpose of this study was to determine how big the impact of physical fitness on student achievement
Materials and methods. The method in this research is a path analysis method with a correlational test technique. Correlational refers to taking the rsquare hypothesis, which is how big the impact of the correlation between physical fitness and student learning achievement is and this study uses the SPSS Version 25 application.
Results.The results found that the level of the variable physical fitness on learning achievement with r = 0.708 with rsquare = 0.501 Coefficients sig value . 0.000. It turns out that the value of sig. 0.000 is less than the probability value of 0.00 or the value of 0.05>0.000.
Conclusions.  Then Ha is accepted and H0 is rejected, meaning that the path analysis coefficient is significant. This study proves that there is a direct impact of physical fitness on student achievement.

Physical fitness or good physical condition of students will enhance the ability and willingness to learn. Physical education in schools needs to be developed so that students are not only physically and spiritually healthy (Apriyano et al., 2020). The level of a person's physical fitness will affect the readiness or physical and mental ability to accept the workload (learning activities) which are the obligations of students every day. Children who are fit have a considerable advantage in test scores, and there is an achievement gap between fit and unfit youths during their academic careers (London & Castrechini, 2011). Monitoring the development of physical fitness is also very important to do, because the results of this monitoring can be used as an evaluation tool for students to improve and improve the physical learning process and as a basis for assessing the success of the physical learning process by a physical education teacher at school.
Physical fitness is closely related to human activities in doing work and moving.
Physical fitness is needed to support a person's daily activities so that these activities are optimal. However, obtaining lecture materials may not be effective if the student feels tired and recovery is slow. Therefore, learning some practical movements requires good coordination (Kriswanto et al., 2019). Agus Mukhlolid (2004) states that physical fitness is the ability to do work or activities, enhance work power with or without experiencing significant or excessive fatigue. So it can be concluded that physical fitness is the body's ability to mobilize and adjust the function of the components of the body's organs within physiological limits to environmental conditions or physical work efficiently without significant fatigue. Not fit one's body will affect the quality and quantity of one's body performance. This is characterized by the presence of the body easily tired and the body's response to wanting to rest which results in sleepy eyes that affect the results of one's body performance (Schleicher et al., 2008). Likewise with learning performance in learning, students who are not fit will feel tired in following learning. this is because the body is not fit in carrying out learning which has implications for the low learning achievement of students (Gonzalez et al., 2011).

Figure 1. Test trajectory in implementation in measuring physical fitness kebugaran
This test is a series of tests where all test items must be carried out in one unit of time and in taking the fitness test a period of 1 time in 1 week is taken.

Data Analysis
In this study using data analysis criteria using analysis requirements and hypothesis-testing. Requirements for data analysis using normality test, and data homogeneity test. Furthermore, in testing the hypothesis in research from the results of data analysis with product moment correlation, this test was conducted to determine the level of relationship between physical fitness and student achievement. After the correlation index number (rxy) is obtained, further analysis is carried out, namely by providing an interpretation or interpretation of the rxy value based on the Rsquare value, which means that the impact value of the physical fitness variable on students' physical education learning achievement.

Description of data
The description of the data from the results of the study aims to provide a general description of the distribution of data distribution, both in the form of the size of the location of the frequency distribution. Prices are presented after being processed from raw data using descriptive statistical methods, namely the maximum value, minimum value, range, average, standard deviation and variance. The summary of the results of statistical calculations is as follows: Copyright (c) 2021 Herli Pardilla.

DISCUSSION
Physical fitness as a driving force when doing a swing on learning achievement.
In practice, if an athlete does not have good physical fitness in doing so, it is certain that student learning outcomes will not run optimally and will not be able to learn efficiently. From the results of research that has been carried out on the physical fitness variable in student achievement, it was found that there was a direct effect of physical fitness (X) on learning achievement of 0.821. This can be seen in the Coffesient Table   which shows the value of sig. 0.000. It turns out that the value of sig. 0.000 is smaller than the probability value of 0.05 or the value of 0.05> 0.000. then the alternative hypothesis Ha is accepted and the null hypothesis H0 is rejected. It can be interpreted that the path analysis coefficient between physical fitness (X) and learning achievement (Y) has a very significant effect. So it can be concluded that physical fitness has a direct effect on student achievement. The test results show that strength or more specifically physical fitness is the dominant element of physical ability and has a very significant influence on student achievement. When viewed from the magnitude of the influence of physical fitness found a strong influence that is equal to 0.821 or 82.10% when tested individually. These findings were also found in several research journals Humaid (2017) which states that, shows that arm muscle strength influences archery achievement, which means that it shows that arm muscle strength affects achievement in archery.
The magnitude of the influence of strength on physical fitness is also stated by Donatelli et al., (2000) that this study provides the clinician with a comprehensive profile of range of motion and muscle strength measurements in the pitching and nonpitching arms of professional.