Abstract
This study is aimed at evaluating 10-13-year-old girls' motor skills and anthropometric characteristics as well as their interrelationships during their growth. Three hundred seventy-eight girls from elementary schools underwent a standard anthropometry (body height, weight and body mass index) and motor fitness tests (sprint run for 20 meters, Bent knee push-up, sit-up test for 30 seconds, standing long jump and sit and reach). Data was stratified by age. Age-specific percentile values (i.e., P5 to P95) were generated. Significant age-related main effects for body height, body weight, and body mass indexes were observed, including running speed, abdominal strength, and muscle endurance, as well as the explosive leg power. Physical fitness was considerably affected by anthropometric parameters. Body height seemed to be positively correlated with the explosive leg power and abdominal strength and muscles endurance, and negatively with speed, strength and endurance of the upper body muscle groups. Test results for assessing strength were insufficient. Likewise, body weight appeared positively correlated with explosive leg power and negatively with speed, strength and endurance of the upper body muscle groups and flexibility. As for the body mass index, it was proven to be negatively correlated with strength and the endurance of the upper body muscle groups and flexibility.
Highlights
Physical fitness refers to a physiologic state of well-being that allows one to meet the demands of daily living or provides the basis for performance in sport
In case of body weight, there was noted a very weak negative association between strength and endurance of the upper body muscle groups (rs(172) = .17, p < .05), while Body mass index (BMI) index seemed to be in very weak negative correlation with flexibility (rs(172) = .17, p < .05)
Significant positive main effects regarding subjects 1112 years of age were detected for body height (rs (177) = .30, p < .000), weight (rs(177) = .28, p < .000) and body mass index (rs(177) = .18, p < .05)
Summary
Physical fitness refers to a physiologic state of well-being that allows one to meet the demands of daily living or provides the basis for performance in sport. Physical activity and physical fitness are often used interchangeably, with fitness commonly being treated as a more accurate measure of physical activity than selfreport (Williams, 2001). The level of physical fitness of school-aged children, is usually determined using health-related physical fitness test batteries (i.e., field tests) (Ramírez-Vélez et al, 2016). During the last decade in Serbia scientists have unified test procedures for school children, so that results could be compared with those pertaining the level of physical fitness of school kids from other countries. Test results provide useful information regarding the process of evaluation level of physical fitness and health, effectiveness of the physical education process and early talent identification
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