Motor Abilities: Methods of Strength and Strength Endurance Development in Middle-School-Aged Boys

Abstract

The study purpose is to develop methods for strength and strength endurance development in middle-school-aged boys in a two-week physical training cycle.
 Materials and methods. The study participants were 6th grade boys (n = 36), 7th grade boys (n = 36), 8th grade boys (n = 33). The paper used analysis and generalization of data of scientific and methodological literature, pedagogical testing, and methods of mathematical statistics for processing research results. The study materials were processed by the IBM SPSS 23 statistical analysis software. The following parameters were calculated: arithmetic mean (X); standard deviation (s). The probability of difference in statistical indicators was estimated using the Student’s t-test.
 Results. The analysis of the study results indicates that after using the method of circuit training (1–3 classes), the experimental group boys show a statistically significant improvement of results in the set of tests (p < 0.05). The largest increase was observed in the indicators of strength endurance of shoulder flexors, abdominal and back muscles, and static endurance of leg muscles. After using a combined method (4–6 classes), the experimental group boys show a statistically significant improvement of the results of strength and strength endurance of shoulder muscles, abdominal and back muscles, leg muscles (p < 0.05). The comparison between the levels of strength preparedness of the control group boys and experimental group boys after the experiment revealed that the experimental group boys show statistically significantly better results of strength and strength endurance of shoulder muscles, abdominal and back muscles, leg muscles (p < 0.05).
 Conclusions. The methods of strength and endurance development that includes circuit training (1–3 classes) and combined training (4–6 classes) have a positive effect on the dynamics of indicators of strength and strength endurance of shoulder muscles, abdominal and back muscles, leg muscles of the middle-school-aged boys. The method of circuit training is effective to develop general and local strength endurance, the dynamics of strength of the local muscle group is strongly influenced by the method of combined training.