scholarly journals Influence of Plyometric Training on the Level of Speed Ability with Changes of Direction in Ice Hockey

2021 ◽  
Vol 15 (1) ◽  
pp. 17-25
Author(s):  
Marián Knechta ◽  
Ivan Čillík ◽  
Jiří Zháněl

AIM: Speed skills are among the decisive factors in sports performance in ice hockey. Therefore, it is necessary to examine them in all age categories. Our goal was to determine the effect of plyometric exercises on the level of running and skating speed at 40 m with changes of direction in young hockey players aged 14-15 years.METHODS: The research group consisted of 33 ice hockey players (Male; age: 14.7 ± 0.7; height: 166.5cm ± 7.3; weight: 53.4kg ± 6.9) divided into two sets. HC 05 Banská Bystrica players formed an experimental group (n = 18), MHC Martin players formed a control group (n = 15). During 8 weeks, the players completed training units of general preparation and training units on ice, in the experimental set was added an experimental factor of plyometric exercises carried out according to the training protocol. Speed diagnostics consisted of the following two tests: running at 40 m with changes of direction and skating forward at 40 m with changes of direction.RESULTS: Between the results of the tests in running speed and skating speed, significant differences were found both in the pretest and in the posttest between the experimental (EXP) and the control (KO) set in favor of the EXP set. Thus, the EXP set did not show the effect of plyometric exercises on improving the level of running speed and only a small effect on improving the level of skating speed.CONCLUSION: The results of the quasi-experiment showed that the influence of plyometric exercises on the improvement of the level of running and skating speed of the players of the experimental group was not proven. In further research, it will be necessary to modify the training protocol and verify its application to comparable files. 

Retos ◽  
2018 ◽  
pp. 374-377
Author(s):  
Francisco Manuel Argudo Iturriaga ◽  
Pablo José Borges ◽  
Encarnación Ruiz Lara ◽  
Jaime Prieto Bermejo

Resumen. El presente estudio pretende comprobar la eficacia de un protocolo para la enseñanza de las situaciones de juego en desigualdad numérica temporal simple en waterpolo con jugadores alevines. Se diseñaron y aplicaron 20 sesiones teóricas y prácticas sobre las acciones correctas a realizar. Se utilizó la metodología observacional mediante un diseño descriptivo y correlacional de carácter longitudinal. Se analizaron las diferencias entre un grupo experimental y un grupo control en 160 microsituaciones de juego en relación a la consecución de gol, fallo, interceptación y duración de la jugada. Hallando diferencias significativas entre los grupos (χ²(2)=16.99; p<.001; TE=.23), más goles y menos interceptaciones en el grupo experimental. Se concluye que el protocolo utilizado con el grupo experimental es válido, fiable y útil para la enseñanza de las jugadas en desigualdad numérica temporal simple con y sin posesión del balón en waterpolo.Abstract. The present study aims to test the efficacy of a protocol for teaching situations of play in simple temporary numerical inequality in water polo U12 player. 20 theoretical and practical sessions were designed and applied on the correct actions to be taken. Observational methodology was used through a descriptive and correlational longitudinal design. The differences between an experimental group and a control group were analyzed in 160 playing microsituations in relation to the achievement of goal, failure, interception and duration of the play. There were significant differences between groups (χ²(2)=16.99, p<.001; TE=.23), finding more goals and fewer interceptions in the experimental group. It is concluded that the protocol used with the experimental group is valid, reliable and useful for the teaching of plays in simple temporary numerical inequality with and without ball possession in water polo.


2019 ◽  
Vol 4 (27) ◽  
pp. eaav1560 ◽  
Author(s):  
Georg Rauter ◽  
Nicolas Gerig ◽  
Roland Sigrist ◽  
Robert Riener ◽  
Peter Wolf

A multitude of robotic systems have been developed to foster motor learning. Some of these robotic systems featured augmented visual or haptic feedback, which was automatically adjusted to the trainee’s performance. However, selecting the type of feedback to achieve the training goal usually remained up to a human trainer. We automated this feedback selection within a robotic rowing simulator: Four spatial errors and one velocity error were considered, all related to trunk-arm sweep rowing set as the training goal to be learned. In an alternating sequence of assessments without augmented feedback and training sessions with augmented, concurrent feedback, the experimental group received feedback, thus addressing the main shortcoming of the previous assessment. With this approach, each participant of the experimental group received an individual sequence of 10 training sessions with feedback. The training sequences from participants in the experimental group were consecutively applied for participants in the control group. Both groups were able to reduce spatial and velocity errors due to training. The learning rate of the requested velocity profile was significantly higher for the experimental group compared with the control group. Thus, our robotic rowing simulator accelerated motor learning by automated feedback selection. This demonstration of a working, closed-loop selection of types of feedback, i.e., training conditions, could serve as the basis for other robotic trainers incorporating further human expertise and artificial intelligence.


2020 ◽  
Vol 15 (7) ◽  
pp. 927-933 ◽  
Author(s):  
Felipe García-Pinillos ◽  
Carlos Lago-Fuentes ◽  
Pedro A. Latorre-Román ◽  
Antonio Pantoja-Vallejo ◽  
Rodrigo Ramirez-Campillo

Context: Plyometric training promotes a highly effective neuromuscular stimulus to improve running performance. Jumping rope (JR) involves mainly foot muscles and joints, due to the quick rebounds, and it might be considered a type of plyometric training for improving power and stiffness, some of the key factors for endurance-running performance. Purpose: To determine the effectiveness of JR during the warm-up routine of amateur endurance runners on jumping performance, reactivity, arch stiffness, and 3-km time-trial performance. Methods: Athletes were randomly assigned to an experimental (n = 51) or control (n = 45) group. Those from the control group were asked to maintain their training routines, while athletes from the experimental group had to modify their warm-up routines, including JR (2–4 sessions/wk, with a total time of 10–20 min/wk) for 10 weeks. Physical tests were performed before (pretest) and after (posttest) the intervention period and included jumping performance (countermovement-jump, squat-jump, and drop-jump tests), foot-arch stiffness, and 3-km time-trial performance. Reactive strength index (RSI) was calculated from a 30-cm drop jump. Results: The 2 × 2 analysis of variance showed significant pre–post differences in all dependent variables (P < .001) for the experimental group. No significant changes were reported in the control group (all P ≥ .05). Pearson correlation analysis revealed a significant relationship between Δ3-km time trial and ΔRSI (r = −.481; P < .001) and ΔStiffness (r = −.336; P < .01). The linear-regression analysis showed that Δ3-km time trial was associated with ΔRSI and ΔStiffness (R2 = .394; P < .001). Conclusions: Compared with a control warm-up routine prior to endurance-running training, 10 weeks (2–4 times/wk) of JR training, in place of 5 minutes of regular warm-up activities, was effective in improving 3-km time-trial performance, jumping ability, RSI, and arch stiffness in amateur endurance runners. Improvements in RSI and arch stiffness were associated with improvements in 3-km time-trial performance.


2012 ◽  
Vol 32 (1) ◽  
pp. 77-86 ◽  
Author(s):  
Jerzy Sadowski ◽  
Andrzej Mastalerz ◽  
Wilhelm Gromisz ◽  
Tomasz Niźnikowski

Effectiveness of the Power Dry-Land Training Programmes in Youth Swimmers The aim of the study was to evaluate the effects of the dry-land power training on swimming force, swimming performance and strength in youth swimmers. Twenty six male swimmers, free from injuries and training regularly at least 6 times a week, were enrolled in the study and randomly assigned to one of two groups: experimental (n=14, mean age 14.0 ± 0.5 yrs, mean height 1.67±0.08 m and mean body mass 55.71 ±9.55 kg) and control (n=12, mean age 14.1 ± 0.5 yrs, mean height 1.61±0.11 m and mean body mass 49.07 ±8.25 kg). The experimental group took part in a combined swimming and dry-land power training. The control group took part in swimming training only. The training programmes in water included a dominant aerobic work in front crawl. In this research the experimental group tended to present slightly greater improvements in sprint performance. However, the stroke frequency insignificantly decreased (-4.30%, p>0.05) in the experimental group and increased (6.28%, p>0.05) in the control group. The distance per stroke insignificantly increased in the experimental group (5.98%, p>0.05) and insignificantly decreased in the control group (-5.36%, p>0.05). A significant improvement of tethered swimming force for the experimental group (9.64%, p<0.02) was found, whereas the increase was not statistically significant in the control group (2.86%, p>0.05). The main data cannot clearly state that power training allowed an enhancement in swimming performance, although a tendency to improve swimming performance in tethered swimming was noticed.


2017 ◽  
Vol 5 (13) ◽  
pp. 52 ◽  
Author(s):  
Ahmet Uzun ◽  
Onder Karakoc

This study was conducted to determine the effects of ten weekly plyometric training on anaerobic power in judokas. 30 male judokas participated in the study and the subjects were divided into two groups as an experimental (15 male age = 21,40 ± 1,99) and control (15 male age = 21,53 ± 1,80) groups. Judo training programme was applied in both groups for 3 days / 90 minutes per week. Experimental and control group were made warm up exercises for 20 minutes. Both groups continued with the special preparatory period judo training program. After warm up exercises, experimental group judokas were made plyometric training consisting of 15 different movements for 20 minutes. Then they were allowed to continue the judo training. As the groups showed normal distribution, Paired Samples T-Test was applied for the significance between pre-test and post-test measurements of the groups. Independent Samples T-Test was used to analyze the difference between the test group and control group. The Independent Samples T-Test was used to analyze the difference between the experimental group and the control group. As a result of the plyometric training, when the pre-test and post-test differences of the physical measurement parameters for the experimental and control groups were compared, the mean values of back strength, anaerobic power and body fat percentage were found to be significant(p0.05). As a result, it is seen that the regular plyometric exercises increase the performance of anaerobic power to judokas. It can be said that putting plyometric training besides judo training has a positive effect for performance.


Author(s):  
Nikola Aksović ◽  
Dragana Berić ◽  
Miodrag Kocić ◽  
Saša Jakovljević ◽  
Filip Milanović

The aim of this study was to determine the effects of plyometric training on sprint abilities. Young basketball players (N=33, Age=15-16) from OKK "Stari Ras" and OKK "Novi Pazar" from Novi Pazar were divided into two groups: an experimental group (EG, n=16; BH=185.45±8.75cm; BM=76.87±11.51kg) with training experience (TE=4.69 ±1.40 years) and a control group (CG; n=17; BH=184.16±6.93cm; BM=76.87±11.51kg) with training experience (TE=5.53±3.18 years). The EG was made up of the players from basketball team OKK "Stari Ras", who in addition to basketball trainings also took part in plyometric training. The CG was made up of the players from basketball team OKK "Novi Pazar", who at that time only took part in basketball trainings. To assess their sprint abilities, three tests were used: Sprint Speed at 5m (S5m), Sprint Speed at 10m (S10m), Sprint Speed at 20m (S20m). The measurement was done with the help of the photocells "Microgate", a parameter which was monitored and the processed time was read in 1/100s. The experimental program lasted for 10 weeks (2x per week). To determine the effect of plyometric training on the sprint abilities of young basketball players, the analysis of covariance ANCOVA was used. The results showed that the EG group achieved significantly greater progress than the CG group on the tests: S5m and S20m. There was no difference between the EG and CG group on the S10m test. Based on these results we concluded that plyometric training has positive effects on the development of sprint abilities in young basketball players.


sportlogia ◽  
2021 ◽  
Vol 17 (1) ◽  
pp. 44-56
Author(s):  
Mariia Roztorhui ◽  
◽  
Alina Perederiy ◽  
Khrystyna Khimenes ◽  
Olexandr Tovstonoh ◽  
...  

Systematic overload, which is a training characteristic of powerlifters with visual impairments of high qualification has a negative impact on the functioning of body systems and the course of the underlying and comorbidities. This determines the relevance of the scientific substantiation of training programs for athletes with visual impairments as the most important component of ensuring the achievement of sports results in powerlifting. This study aimed to experimentally substantiate the effectiveness of the impact of various training programs on physical fitness and athletic performance of powerlifters with visual impairments of high qualification. To solve the goal we used methods of analysis of scientific and methodological literature, pedagogical observation, pedagogical experiment and methods of mathematical statistics. The study involved 16 visually impaired athletes who were members of the national powerlifting team. The pedagogical experiment was based on testing the effectiveness of two training programs, which differed in the parameters of the load components in the annual training and macrocycle periods. After the pedagogical experiment, the experimental group showed reliable indicators of growth on all tests and improvement of sports results, and athletes of the control group increased physical fitness in three tests out of five and sports results are available only in squat and bench press. In both groups, the highest growth rates in the level of development of physical qualities were found in tests aimed at determining the level of development of strength and flexibility. Comparing the results of the introduction of various training programs in the training process of powerlifters with visual impairments, we can conclude that the performance of the experimental group is much higher than among the powerlifters of the control group.


1998 ◽  
Vol 7 (2) ◽  
pp. 122-127 ◽  
Author(s):  
Andrew G. Baker ◽  
William G. Webright ◽  
David H. Perrin

The purpose of this study was to examine the effects of a resistive tubing kick training protocol on postural sway in uninjured collegiate wrestlers. An experimental group (n= 10) performed a progressive resistive tubing kick training protocol three times per week for 6 weeks. A control group (n= 9) performed no resistive tubing training during the 6 weeks. Postural sway (stability index) was assessed before and after the 6-week training period. ANOVAs demonstrated no significant interactions, although significant main effects were found for group and eye condition. The experimental group demonstrated less postural sway than the control group regardless of training, and postural sway was greater with the eyes closed than with the eyes open. Resistive tubing kick training does not significantly improve postural sway in healthy collegiate wrestlers. Further research should examine the potential benefits of proprioceptive training using a greater intensity of training and/or using subjects who have a greater potential for improvement.


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