scholarly journals Strength Abilities: Estimation of Immediate Training Effect of Strength Loads in Girls Aged 7 Years

2019 ◽  
Vol 19 (2) ◽  
pp. 98-104 ◽  
Author(s):  
O. M. Khudolii ◽  
O. V. Ivashchenko ◽  
S. S. Iermakov ◽  
Yu. M. Nosko ◽  
S. I. Marchenko

The study purpose was to experimentally substantiate technological approaches to estimating training effects of strength loads in girls aged 7 years. Materials and methods. The study participants were girls aged 7 years (n = 40). The children and their parents were fully informed about all the features of the study and gave their consent to participate in the experiment. To solve the tasks set, theoretical and empirical methods were used: analysis and generalization of scientific and methodological literature; modeling, pedagogical observation and experiment, methods of mathematical experiment planning (2k type FFE). Results. The study results show that in the proposed matrix of the 22 type full factorial experiment design, the chosen step of variation of factors is sufficient to study the influence of different modes of strength exercises on the dynamics of ITE in girls aged 7 years. Conclusions. At station 1 (exercises to strengthen arms and shoulders), the ITE in girls aged 7 is most influenced by the interaction between the number of repetitions in a set and the rest interval (x1x2) – 83%, the number of repetitions in a set (x1) – 15%; at station 2 (exercises to strengthen abdominal muscles), it is most influenced by the number of repetitions in a set (x1) – 48.5%, the rest interval (х2) – 48.5%; at station 3 (exercises to strengthen back muscles) – by the rest interval (x2) – 82%; at station 4 (exercises to strengthen leg muscles) – by the rest interval (x2) – 92%. At stations 1–3, to strengthen the ITE, it is necessary to increase the number of repetitions in a set and the duration of the rest interval, at station 4, it is necessary to increase the number of repetitions in a set and to reduce the duration of the rest interval.

2020 ◽  
Vol 20 (1) ◽  
pp. 42-48 ◽  
Author(s):  
Oleg Khudolii ◽  
Olena Kapkan ◽  
Sergii Harkusha ◽  
Svitlana Marchenko ◽  
Viktoriia Veremeenko

The study objective was to substantiate the modes of alternation of physical exercises and rest intervals when teaching series of tasks aimed at motor skills development in boys aged 15 years. Materials and methods. The participants in the study were 40 boys aged 15. The children and their parents were fully informed about all the features of the study and gave their consent to participate in the experiment. To achieve the objective set, the following research methods were used: study and analysis of scientific and methodological literature; pedagogical observation, timing of training tasks; pedagogical experiment, methods of mathematical statistics, methods of mathematical experiment planning. During training, the method of algorithmic instructions was used. Results. The study found that the effectiveness of mastering series of training tasks depends on a mode of alternation of exercises and rest intervals. The results of analysis of variance and regression models show that the optimal mode of performing series of training tasks is within the range of 6-12 exercise repetitions with rest intervals of 60-120 sesonds. In the proposed matrix of factorial design, the selected step of factor variation is sufficient to study the impact of different modes of physical exercises on the effectiveness of teaching children and adolescents. Conclusions. The best options for teaching series of tasks to boys aged 15 during physical education classes are the following: series 1 – 12 repetitions, rest interval of 60–120 s; series 2 – 12 repetitions, rest interval of 120 s; series 3 – 12 repetitions, rest interval of 120 s; series 4 – 12 repetitions, rest interval of 120 s; series 5 – 12 repetitions, rest interval of 60 s; series 6 – 12 repetitions, rest interval of 60 s.


2020 ◽  
Vol 1 (1) ◽  
pp. 33-39 ◽  
Author(s):  
Svitlana Marchenko ◽  
Kateryna Kovalenko

The objective of the study was to substantiate the influence of selected factors on the effectiveness of teaching a series of tasks aimed at motor skills development in boys aged 10. Materials and methods. The study involved 32 boys aged 10. The children and their parents were informed about all the features of the study and gave their consent to participate in the experiment. To achieve the objective set, the following research methods were used: study and analysis of scientific and methodological literature; pedagogical observation, timing of learning tasks; pedagogical experiment, methods of mathematical statistics, methods of mathematical experiment planning. During training, a method of algorithmic instructions was used. Results. Regression dependence is observed throughout the entire period of performing the series of learning tasks. The constructed mathematical models adequately describe the obtained data. The calculated regression coefficients are statistically significant (Fр < Fkр). Throughout the experiment, the factor X1 “number of sets” had a constant positive effect on the target feature (Y). The percentage contribution in the first series of learning tasks was 87.8%, in the second – 32.3%, in the third – 55.1%, in the fourth – 77.2%, in the fifth – 68.9%, in the sixth – 54.03%. The factor X2 “rest interval” had a negative effect starting from the second series – 67.3%, the third – 40.4%, the fourth – 19.3%, the fifth – 30.6%, the sixth – 45.05%. The effect of first-order interaction (X1X2) was not observed during all the series of learning tasks. Conclusions. The optimal modes of performing the series of tasks for teaching boys aged 10 the Mae-geri (front kick) in Kyokushin karate are the following: series 1 – 3 sets, rest interval 60-120 s; series 2 – 1-3 sets, rest interval 60 s; series 3 – 3 sets, rest interval 60 s; series 4 – 3 sets, rest interval 60–120 s; series 5 – 3 sets, rest interval 60 s; series 6 – 3 sets, rest interval 60 s.


2020 ◽  
Vol 20 (4) ◽  
pp. 248-255
Author(s):  
Oleg Khudolii ◽  
Sergii Iermakov ◽  
Olha Ivashchenko ◽  
Mykola Nosko

The purpose of the study was to obtain regression models of immediate and delayed training effect of strength loads in boys aged 8 years, based on a full factorial experiment. Materials and methods. The study participants were 48 boys aged 8 years. The experiment was performed using a 22 factorial design. The study materials were processed by the IBM SPSS 22 statistical analysis program. The study examined the impact of four variants of strength load on the immediate (ITE) and the delayed (DTE) training effect of orthogonal strength exercises modes and rest intervals in boys aged 8 years. Results. The study results show that in the proposed matrix of the 22 full factorial design, the chosen step of variation of factors is sufficient to study the influence of different modes of strength exercises on the dynamics of ITE in boys aged 8 years. Based on the data analysis, the study obtained regression models of load for calculating the ITE1, ITE2, and DTE. The obtained regression models make it possible to calculate the number of repetitions and rest interval to achieve the most rational load variant. Conclusions. The analysis of regression equations shows the interrelation between training effects: ITE1 —> ITE2 —> DTE. The value of ITE1, ITE2, and DTE at station I (exercises to strengthen arms and shoulders) and station II (exercises to strengthen abdominal muscles) depends on the increase in the number of repetitions in a set and the duration of the rest interval. The value of ITE1, ITE2 at station ІІІ (exercises to strengthen back muscles) depends on the increase in the number of repetitions in a set and the duration of the rest interval. The value of DTE – on the increase in the number of repetitions in a set and the reduction of the rest interval duration. The value of ITE1 at station IV (exercises to strengthen leg muscles) depends on the increase in the number of repetitions in a set and the reduction of the rest interval duration. To strengthen the DTE, it is necessary to reduce the number of repetitions in a set and the duration of the rest interval.


Author(s):  
О. М. Худолій ◽  
О. В. Іващенко ◽  
В. І. Бекетов

Research objective. To experimentally ground the technological approaches to evaluating training effects of primary schoolers’ power loads.Materials and methods. To achieve the objectives outlined, the research used the following methods: analysis of scientific and methodological literature, pedagogical testing, modeling, pedagogical observation and experiment, methods of mathematical experiment planning (complete factorial experiment, 2k type), discriminant analysis. The participants in the study were 32 second grade boys.Research results. The training pattern affects the dynamics in the test results for the second grade boys. The test results can improve provided that the power load brings about significant changes after the training at each spot, after the training (immediate training effect), and twenty four hours after the power load (delayed training effect). The higher the dynamics is for the immediate and delayed training effects, the more significant are the improved power tests results observed after as few as three lessons.Conclusions. The discriminant function can be used to classify the training effects of the second grade boys’ power loads. The first canonical function explains the results variation by 85.0%, the second one — by 14.0%. This suggests that they are highly informative. The centroid coordinates for five groups allow to interpret the canonical functions according to the role differentiating the grades by the training effects of the primary schoolers’ power loads. The positive pole of the first function has the condition centroids at the beginning of the power loads, after three, six, nine and twelve lessons; the negative pole has the centroids of the training effects after the power loads, after the lesson, after 24 hours.Thus, the reaction to the power load has immediate, delayed and cumulative training effects.


2020 ◽  
Vol 20 (4) ◽  
pp. 262-268
Author(s):  
Svitlana Marchenko ◽  
Oleksandr Taranenko

The objective of the study was to substantiate the influence of selected independent variables for building optimal models of teaching a series of tasks aimed at motor skills development in boys aged 10. Materials and methods. The study involved 32 boys aged 10. The children and their parents were informed about all the features of the study and gave their consent to participate in the experiment. To achieve the objective set, the following research methods were used: study and analysis of scientific and methodological literature; pedagogical observation, timing of learning tasks; pedagogical experiment, methods of mathematical statistics, methods of mathematical experiment planning. In the process of teaching, a method of algorithmic instructions was used. Results. The effect size of the factor varied from series to series. The calculated Cochran's criterion showed that all the groups of experimental data were obtained from the same population. It was found that the variances do not differ for the selected significance level of 0.05.  Each independent variable (X1, X2, X1X2) plays a role in changing the indicator of proficiency in the Mawashi-geri-jodan (roundhouse kick). The constructed mathematical models adequately describe the obtained data. The calculated regression coefficients are statistically significant (Fр < Fkр), which means that the regression model is effective. Throughout the experiment, the independent variable Х1 “number of sets” had a constant positive effect on the target feature (Y). The percentage contribution in the first series of learning tasks was 59.3%, in the second – 88.6%, in the third – 56%, in the fourth – 93.9%, in the fifth – 81.3%, in the sixth – 69.62%. The independent variable Х2 “rest interval” has a negative effect in the first series – 25.9%, in the second series – 10.6%, in the fifth – 9.9%, in the sixth – 13.1%. A positive effect of the first-order interaction (X1X2) was observed in the third series – 29.1%, the fifth – 8.9%, the sixth – 17.28%.  Conclusions. The optimal combinations of conditions for the series of tasks when teaching boys aged 10 the Mawashi-geri-jodan (roundhouse kick) are the following: series 1 – 3 sets, rest interval 60 s; series 2 – 3 sets, rest interval 60 s; series 3 – 3 sets, rest interval 120 s; series 4 – 3 sets, rest interval 60–120 s; series 5 – 3 sets, rest interval 120 s; series 6 – 3 sets, rest interval 120 s.


2015 ◽  
Vol 0 (8) ◽  
pp. 273
Author(s):  
Sergey Evgen’evich Tinyakov ◽  
Iana Pavlovna Borisova ◽  
Anatoly Arhipovich Kovel ◽  
Vladimir Olegovich Andreev ◽  
Anna Aleksandrovna Semenova ◽  
...  

2016 ◽  
Vol 11 (1) ◽  
pp. 82-86
Author(s):  
Абдрахманов ◽  
Rinat Abdrakhmanov ◽  
Гильфанов ◽  
Rashid Gilfanov ◽  
Калимуллин ◽  
...  

The article provides the results of experimental studies on substantiation and assessment of the kinematic mode impact of rotary haulm chopper to the complete destruction of Colorado potato beetle. A technique of mathematical experiment planning theory was used in the experiments. The software in VBA in MS Excel, developed by the authors, was applied for experimental results processing. By constructing a mathematical model, the problem of optimization was solved, and the regime parameters values of haulm chopper was determined, which ensure the maximum percentage of destruction of the Colorado potato beetle.


1980 ◽  
Vol 37 (5) ◽  
pp. 238-240
Author(s):  
G. S. Galakhova ◽  
V. M. Nikolaeva ◽  
V. V. Vishnyakov ◽  
T. I. Grishkova ◽  
V. F. Prokopets ◽  
...  

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