scholarly journals Use of unstable supports and exercises to control the position of the center of gravity in the training process of female basketball players aged 13-14

2019 ◽  
Vol 5 (1) ◽  
pp. 114
Author(s):  
I.N. Sobko ◽  
A.A. Ischenko ◽  
S.B. Khrapov ◽  
T.V. Pasichna

<p><em>The purpose</em> of the work is to experimentally substantiate the development methodology of special physical and technical preparedness of female basketball players aged 13-14. <em>Material and methods</em>. Basketball players of Sports School №13 (age 13-14 years) took part in the experiment: experimental group (n = 18); control group (n = 18). The experiment was conducted in August 2018 for three months. Before and after the experiment, basketball players were tested for physical fitness (running 6 meters, shuttle running 2x28 meters, flexing their arms in the resting position, jumping rope), technical readiness (speed of defensive movements, throws from different distances, speed ball). To determine the psychophysiological state of the athletes of the experiment, psychophysiological indicators were recorded using the “Psychodiagnostics” computer program (the speed of a simple and complex reaction in various testing modes). To determine the speed of the motor hand was used the test "shifting chips." <em>Results.</em> A method of developing special physical and technical preparedness of basketball players has been developed and introduced into the training process of young basketball players. The technique includes doing exercises with a rubber band, exercises using unstable platforms, and running from non-standard starting positions. Revealed a significant (p&lt;0.05) improvement of indicators in tests: the speed of defensive movements, shuttle run, high-speed ball dribble, throws from different distances of athletes from the experimental group compared to the control group. It was established a significant (p &lt;0.05) difference in performance after conducting the experiment in tests: the speed of a simple and complex reaction and the motility of the hands of the athletes of the experimental group compared to the athletes of the control group. <em>Conclusions</em><em>.</em> The positive effect of the experimental method on the level of physical, technical preparedness and psycho-physiological state of female basketball players aged 13-14 years is shown.</p>

2018 ◽  
Vol 9 (1) ◽  
pp. 7
Author(s):  
Ruining. Yang ◽  
Hiroaki. Nanjo ◽  
Masatake. Danstuji

The aim of this study is to examine the effect of high variability training on “-n” and “-ng” in Mandarin Chinese. 46 Japanese native speakers who study Mandarin Chinese as a second foreign language at a university in Japan were divided into one experimental group and one control group. Participants assigned to the experimental group trained themselves using software, which was developed in our early research. Participants in the control group took Chinese lessons normally. Identification tasks (ITs) were conducted before and after the training. After 12 sessions, the average identification accuracy of nasal codas increased 7.1% (p < .05) in the experimental group, however, decreased 1.2% (p > .05) in the control group. Results of the training process prove that the training was effective for some participants, while had little effect on other participants. From the questionnaires, we found that there is a disagreement between the participants’ subjective ability to identify nasal codas and the actual identification accuracy in ITs. Participants underestimate their ability to identify “-n” and “-ng” before training and overestimate their ability to identify “-n” and “-ng” after training. We made a formula to predict the accuracy of ITs (y) in the last 4 training sessions (x): y = 2.13x2 - 2.35x + 1.23. This formula will help participants to grasp the training process and predict their identification ability.


2019 ◽  
Vol 5 (2) ◽  
pp. 88
Author(s):  
I.M. Sobko ◽  
O.V. Koliesov ◽  
L.O. Ulaeva

<p><strong>The purpose</strong> – to develop and experimentally substantiate the method of developing the physical qualities of tennis players aged 12–13 years old, using React Balls and stretching.</p><p><strong>Material and methods</strong>. The experiment was attended by 28 tennis players 12-13 years old sport school № 3, Severodonetsk, who were divided into control and experimental group of 14 people. The study was conducted within 8 months from August 2018 to March 2019. Before and after the experiment, tennis players' physical fitness was tested (shuttle run 6x8 m, push-ups 30 s, jumps with skipping-rope, running 6 m, running 30 m, long jump from the spot, throwing ball 1 kg, torso inclination forward from a sitting position, circular rotations in the shoulder joint with a gymnastic stick).</p><p><strong>Results</strong><em>. </em>Complexes of exercises with React Balls and stretch exercises for all muscle groups were developed and introduced into the training process of young tennis players. A significant (p&lt;0.05) increase in the flexibility indicators of athletes from the experimental group, as a result of the use of stretch exercises, was determined. It was revealed that doing exercises with React Balls and tennis balls significantly (p &lt;0.05) increased the level of speed and coordination capabilities in the control and experimental groups. According to the test results «running 30 m», «circular rotations in the shoulder joint with a gymnastic stick», «torso inclination forward from a sitting position» in the experimental group, these figures are significantly higher compared with the athletes of the control group.</p><p><strong>Conclusions.</strong>  It was shown that the use of stretching exercises contributes to the development of greater amplitude of movements, and also forms motor freedom, which affects the development of coordination and speed of movement of a tennis player. It is recommended to use the method of development of physical qualities using React Balls and stretching balls in the training process of young tennis players 12-13 years old.</p>


Retos ◽  
2021 ◽  
Vol 43 ◽  
pp. 256-263
Author(s):  
Pedro Grenha ◽  
José Moura ◽  
Eduardo Guimarães ◽  
Pedro Fonseca ◽  
Filipa Sousa ◽  
...  

  The current study intended to investigate the effects of a self-training program on shooting performance and kinematics of young basketball players. Fourteen male basketball players aged 16.64±.50 years, divided in control group (n=7) and experimental group (n=7), were assessed on free-throw, two-point and three-point shooting performance and on four kinematic parameters (release height, release angle, release speed and trajectory variability), before and after a five-week training program. During the five-week period, the experimental group accomplished a shooting training program that included 600 shots per week. Both groups maintained their regular basketball practice. The results show that the experimental group significantly increased their shooting performance on three-point (p<.05) and on free-throw (p<.05). Moreover, a significant decrease in three-point ball release angle (p<.05) and a significant increase in free-throw ball release height (p<.05) were observed in the experimental group, while the control group significantly increased the two-point ball release speed (p<.05). In conclusion, self-shooting basketball practice, in addition to formal practice, significantly improves shooting performance of young basketball players. In contrast, the reduced changes on the analysed kinematic parameters caused by the self-training program are most likely a consequence of the absence of external feedback during training process.  Resumen. El propósito del presente estudio fue investigar los efectos de un programa de autoentrenamiento en el rendimiento y cinemática de tiro de jóvenes jugadores de baloncesto. Catorce jugadores de baloncesto masculinos, de 16.64±0.50 años, divididos en grupo de control (n=7) y grupo experimental (n=7), fueron evaluados en el rendimiento de tiro libre, de dos puntos y de tres puntos y en cuatro parámetros cinemáticos (altura de liberación, ángulo de liberación, velocidad de liberación y variabilidad de la trayectoria), antes y después de un programa de entrenamiento de cinco semanas. Durante el período de cinco semanas, el grupo experimental realizó un programa de entrenamiento de tiro que incluía 600 tiros por semana. Ambos grupos mantuvieron su práctica regular de baloncesto. Los resultados muestran que el grupo experimental aumentó significativamente su rendimiento en el tiro de tres puntos (p<.05) y en el tiro libre (p<.05). Además, se observó, en el grupo experimental, una disminución significativa del ángulo de liberación en el tiro de tres puntos (p<.05) y un aumento significativo de la altura de liberación en el tiro libre (p<.05), mientras que el grupo de control aumentó significativamente la velocidad de liberación en el tiro de dos pontos (p<.05). En conclusión, la autopráctica de tiro en baloncesto, además de la práctica formal, mejora significativamente el rendimiento de tiro de los jugadores jóvenes. Por el contrario, los cambios reducidos en los parámetros cinemáticos analizados son probablemente una consecuencia de la ausencia de corrección externa durante el proceso de autoentrenamiento.


Author(s):  
Ruben Cabanillas ◽  
Jorge Serna ◽  
Veronica Muñoz-Arroyave ◽  
José Albeiro Echeverri Ramos

Abstract The present study investigated the effect of eccentric overload on professional basketball players. Participants were 8 players aged 18-25 years who play in a Leb Oro League team. There was an 8 week training cycle with 1 weekly session of half squats. The control group performed training following a traditional methodology –using free weights– whereas the experimental group used inertial technology, that is, the ProSquat machine from Proinertial®. Both vertical jump and 30-meter sprint were assessed before and after intervention. The following conclusions were reached: a) strength training with vertical vector improves the 30-meter sprint test and also the vertical jump; b) training program that affects the eccentric overload of the movement results in more improvements than traditional training with the same duration; c) training in the vertical vector also has an impact on the way force is manifested in the horizontal vector, showing improvements in the 30-meter sprint.


2018 ◽  
Vol 9 (01) ◽  
Author(s):  
Praful Prabhuappa Kapse ◽  
Manisha Kiran

Caring for the persons with first episode psychosis is challenging and demanding. It may lead to the increased burden, expressed emotions among the caregivers. The numerous studies have shown that high burden and negative expressed emotions among caregivers can lead to early relapse in the patients with first episode psychosis. To evaluate the effects of the brief psychoeducation on the caregivers burden and expressed emotions. A quasi experimental - before and after with control group research design was adopted for the study. A total of 60 caregivers have participated in the study, of which 30 caregivers in experimental group and 30 caregivers in the control group. Family Burden Interview Schedule (Pai and Kapoor, 1981) and Attitude Questionnaire (Sethi et al., 1981) was used to assess caregiver's burden and expressed emotions. At end of the psychoeducation intervention, burden among caregivers and negative expressed emotions of the caregivers have significantly reduced. The positive expressed emotions have been increased. Study results demonstrates the importance of psychoeducation intervention in reducing the burden and negative expressed emotions.


Author(s):  
G. Uskov ◽  
A. Tsopanova ◽  
T. Perezhogina

Complete feeding of ponies is provided on the basis of data on their nutritional needs depending on age, sex, physiological state and level of productivity (the amount of milk produced and the intensity of growth of young animals). Ponies are sensitive to a lack of vitamins and mineral elements in the feed. When there is a sufficient amount of organic and mineral substances, but a lack or absence of vitamins, horses and ponies have impaired metabolism. The purpose of this work is to study the effectiveness of the use of vitamin and mineral additive MEGA-VIT in the rations of pregnant and lactating mares of Shetland pony breed. It has been found during of the researches that the vitamin and mineral additive MEGA-VIT had a positive influence on the productive and physiological indicators of animals. The cost of spent feed for the entire period of experiment in the control group was 50,6 thousand rubles, and in the experimental group it was 11,8 thousand rubles more or 23,5 %. Revenue from the sale of young horses of the control group amounted to 400 thousand rubles, and experimental group – 440 thousand rubles, this is by 40 thousand rubles more than in control group. This led to the increase in profit in the experimental group of mares by 28,1 thousand rubles and accordingly the level of profitability by 3,2 %. It has been recommended on the results have been obtained on the base of researches to include 30 g/head/day in the rations of mares of Shetland pony breed during pregnancy, and 50 g/head/day during lactation.


The article is devoted to the solution of an urgent problem- influence of different lighting modes on the dairy productivity of cows. 2 groups of cows with 20 heads each were formed. In control group, light in the cowshed was 50-75 Lux for a light period of 7.5 h in January to 16.5 h in June, and in experimental group - 150-200 Lux and 16 h, respectively. It was found that the intensity and duration of illumination affects physiological state, reproductive ability and milk productivity of cows. In the experimental group of cows, compared with the control group, hemoglobin content in blood increased by 4.6% (P < 0.01), red blood cells - by 20.6% (P < 0.05), total protein - by 11.2% (P < 0.001), glucose - by 39.1% (P < 0.05). There was a tendency to increase the total calcium and inorganic phosphorus in blood serum of cows of the experimental group. The level of alkaline phosphatase in blood serum of cows in the control group was 71.5% (P < 0.01) higher than that of cows in the experimental group. Milk yield per 1 cow in the experimental cowshed was 433 kg more than in the control. The cost of 1 kg of milk in the experimental group was 0.94 rubles lower, and the profitability of milk production and sales is 9.42% higher than in the control group. To increase the milk productivity of cows, it is recommended to increase light level in barns for tethered keeping to 150-200 Lux, with the duration of lighting in the winter and transition periods of year up to 16 hours per day.


Nutrients ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 118
Author(s):  
Anna Skarpańska-Stejnborn ◽  
Mirosława Cieślicka ◽  
Hanna Dziewiecka ◽  
Sławomir Kujawski ◽  
Anita Marcinkiewicz ◽  
...  

An intensive physical exercise program could lead to a decrease in immune system function. Effects of long-term supplementation of bovine colostrum on the response of immune function on physical exercise test in athletes were examined. Twenty-seven elite female basketball players (age 16–19) were randomly assigned to either an experimental group or a control group. Eventually, n = 11 athletes completed intervention in the experimental group (3.2 g bovine colostrum orally twice a day for 24 weeks), while n = 9 athletes in the control group were given a placebo. Before the supplementation, after 3 and 6 months, subjects performed the physical exercise stress test. Before, just after, and 3 h after physical exercise testing, blood was drawn and immune system indicators were examined. Plasma interleukin (IL)-1alpha, IL-2, IL-10, IL-13, tumor necrosis factor (TNF) alpha, creatine kinase (CK MM), immunoglobulin G (IgG), insulin-like growth factor 1 (IGF1), and WBC, lymphocyte (LYM), monocyte (MON), and granulocyte (GRA) were measured. A statistically significant change in IL-10 in response to the exercise program during the supplementation period in both groups was observed (p = 0.01). However, the results of the rest of the comparisons were statistically insignificant (p > 0.05). Contrary to our initial hypothesis, there were no significant effects of bovine supplementation on the dynamics of immune system function indicators.


Healthcare ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 820
Author(s):  
Ju-Yong Bae ◽  
Hee-Tae Roh

We aimed to investigate the effect of Taekwondo training on physical fitness, mood, sociality, and cognitive function among international students in South Korea. We randomly assigned 24 international students to a control group (CG, n = 12) and experimental group (EG, n = 12). The EG performed Taekwondo training for 16 weeks, while the CG did not train. Each participant underwent a physical fitness test and sociability questionnaire before and after the intervention. We also examined changes in mood state and cognitive function, using the Korean version of the Profile of Mood State-Brief (K-POMS-B), and the Stroop Color and Word test, respectively. Regarding the physical fitness variables, sit-and-reach records in the EG significantly increased after intervention (p < 0.05). In the sub-variable of K-POMS-B, Vigor-Activity scores significantly increased (p < 0.05) after intervention, while the Fatigue-Inertia scores significantly decreased in the EG (p < 0.05). Furthermore, in the EG, peer relationship scores, a sub-variable of sociability, significantly decreased after intervention (p < 0.05). These findings suggest that Taekwondo training can not only improve flexibility among physical fitness factors, but can also be effective in improving the mood state and sociality of international students.


2021 ◽  
Vol 38 (9) ◽  
pp. A4.2-A4
Author(s):  
Matthew Warren-James ◽  
Julie Hanson ◽  
Belinda Flanagan ◽  
Mary Katsikitis ◽  
Bill Lord

BackgroundWhilst there is evidence to suggest paramedics experience significant stress when working in the ambulance setting little is known about the experiences of first year paramedic students. This research aimed to: (i) identify whether levels of stress, anxiety and depression experienced by first year paramedic students changed after ambulance placement compared to a control group, and (ii) identify the main perceived and actual sources of stress around ambulance placement.MethodsA before-and-after quasi-experimental design was used to compare whether the experience of ambulance placement altered the levels of stress, anxiety and depression in an experimental group that attended an ambulance placement (n = 20) and the control group who did not (n = 10). Online surveys encompassing the Depression, Anxiety and Stress Scale (DASS-21) and qualitative questions about sources of stress were concurrently deployed to both the experimental and control groups before and after the ambulance placement. Participants were first year paramedic students working in Queensland Ambulance Service, Australia.ResultsThere was a significant reduction in levels of stress in participants after undertaking their first ambulance placement (Mdn = -4.00) when compared to a control group (Mdn = 0.00), U = 52.5, p = .035, n2 = 0.15. Responses to survey questions suggest anticipation about experiencing death and dying of patients was the most frequently reported stressor of student paramedics before undertaking ambulance placements, however insecurity about knowledge, competence and fear of failure was the most frequently experienced stressor reported after completing ambulance placements.ConclusionsThe findings from this study suggest that the fear of the unknown may be worse than the reality. Anticipatory stress is the foremost problem for first year paramedic students attending their first ambulance placement. Placement pre-briefing should focus on educational interventions to build knowledge and skills competency to reduce stress levels and fear of failure.


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