Influence of the sport specific training background on the symmetry of the single legged vertical counter movement jump among female ballet dancers and volleyball players

Jereb, V.; Vauhnik, R.; Rugelj, Darja

doi:10.1016/j.heliyon.2022.e10669

Cited by 5 publications

(3 citation statements)

References 35 publications

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“…Despite the fact that inter-limb asymmetry is not evident in the bilateral CMJ [24], asymmetry in a singleleg CMJ is negatively related with performance in jumping and sprinting tests in youth team-sport athletes [25,26], with single-leg vertical jumps presenting larger asymmetries compared to horizontal jumping [27]. In line with these findings, volleyball players were found to exhibit a 13.6% greater single leg CMJ performance for the dominant leg [28]. This fact can be attributed to the different mechanical loading in each leg during spike jumps, which may alter the ankle range of motion as well.…”

Section: Introductionmentioning

confidence: 77%

Countermovement Jump Performance Is Related to Ankle Flexibility and Knee Extensors Torque in Female Adolescent Volleyball Athletes

Panoutsakopoulos

Bassa

2023

JFMK

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Ankle flexibility and isokinetic knee torque/power generating capacity were previously suggested to contribute or to be correlated to the vertical countermovement jump (CMJ) performance. The aim of this study was to investigate the effect of the passive ankle joint dorsi flexion (θPDF) and the knee muscle’s isokinetic torque and power on the CMJ in adolescent female volleyball players. The θPDF at a knee extension angle of 140 degrees were measured for 37 female post-pubertal volleyball players. Then, the players were assigned to either the flexible (n = 10) or inflexible (n = 14) groups according to earlier recommended criteria. Testing included the CMJ with and without an arm swing, and maximal knee extensions and flexions in 3 angular velocities on an isokinetic dynamometer. CMJ height performed with or without an arm swing (r(22) = 0.563, p = 0.040 and r(22) = 0.518, p = 0.009, respectively) and relative power (r(22) = 0.517, p = 0.010 and r(22) = 0.446, p = 0.030, respectively) were positively correlated with the extensors’ torque at 180°/s and were negatively correlated with the flexibility level of the dominant side ankle (r(22) = −0.529, p = 0.008 and r(22) = −0.576, p = 0.030, respectively). A moderate positive correlation was also revealed between the CMJ height with and without an arm swing and the power of the non-dominant knee extensors (r(22) = 0.458, p = 0.024 and r(22) = 0.402, p = 0.049, respectively) and flexors (r(22) = 0.484, p = 0.016 and r(22) = 0.477, p = 0.018, respectively). Results of the 2 × 2 repeated ANOVA measurements revealed that flexible players jumped significantly (p < 0.05) higher during the CMJs, whilst there was a group effect only on the isokinetic knee extensor muscles’ torque. In conclusion, a more flexible ankle joint and a higher isokinetic knee extensor’s torque generating capacity resulted in higher CMJ performance. Therefore, ankle flexibility should be emphasized in training and is suggested to be included in preseason screening tests of youth female volleyball players.

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Section: Introductionmentioning

confidence: 77%

Countermovement Jump Performance Is Related to Ankle Flexibility and Knee Extensors Torque in Female Adolescent Volleyball Athletes

Panoutsakopoulos

Bassa

2023

JFMK

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“…Passing, setting, spiking, blocking, and serving the ball are basic movements in the game of volleyball that require the implementation of various vertical or horizontal jumps, as well as speed actions (Agopyan et al, 2018). The vertical high jump is considered an important criterion that influences the overall performance of volleyball players (Akalan et al, 2022;Bartol et al, 2022). As a libero, horizontal jumps are predominantly used to hunt or chase an opponent's attack ball, which can slide in an uncertain direction.The libero must have excellent ball-receiving skills.…”

Section: Figure 3 Vertical Jump Testmentioning

confidence: 99%

Analysis of the Dominant Aspects of Libero’s Basic Skills

Hidayat,

Siantoro,

Wicahyani

2024

IJMRA

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The physical fitness parameters of players in the libero position need to be measured to maintain performance with training that is appropriate to the needs of supporting movement performance as a libero. The aim of this research is to analyze the basic skills of Libero players. This is quantitative research that uses skill tests as a research instrument. The test instruments used include grip strength tests, sit-and-reach, running, push-up, sit-up, back-up, and vertical jumps. The research population is volleyball players in the position of libero in the Volleyball Student Activity Unit at Surabaya State University. The sampling technique used was a total sampling of 12 students. The data was analyzed descriptively and quantitatively to determine the average skill characteristics of Libero players. The research results show that the average sit and reach test measurement result for male players is 37.93 and for female players is 40.70. The average left-hand grip strength test result for men is 39.43 and for women is 26.8. The average right-hand grip strength test result for men is 41.29 and for women is 28.40. The average result of the push-up test for men is 34.29, and for women, it is 38.80. The average result of the sit-up test for male players is 44.14, and for females, it is 54.00. The average back-up test result for male players is 76.00, and for women, it is 76.00. The average running test result for men is 9.81 and for women is 9.64. The average result of the vertical jump test for men is 55.14 cm, and for women, it is 48.80 cm. The results of this research are useful for trainers as a consideration in preparing special physical training programs that suit the characteristics of liberos.

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“…Therefore, it is critical to instill self-confidence in students, one of which is in volleyball learning courses that require students to practice teaching, especially there are students who become students and teachers, (Macdonald et al, 2023) (Bartol et al, 2022). In this case, student confidence is essential.…”

Section: Introductionmentioning

confidence: 99%

Self-Confidence Conceptual Model Development in Volleyball Learning Courses

Astuti,

Zulbahri,

Lawanis

et al. 2023

Retos

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The research was motivated by the problem of students in the Physical Education, Health and Recreation Study Program not exhibiting optimal self-confidence, particularly the confidence to speak in front of the class during lecture activities. Self-confidence is an aspect of the human psyche that must be nurtured and developed. Self-confidence denotes the ability to do something confidently and without fear of failure. Confidence is also part of the subconscious and is unaffected by emotions and feelings. Therefore, it requires a method that can be accomplished by controlling emotions, feelings, and imagery. The volleyball learning course necessitates good psychological conditions for students to be confident when practicing in small groups and later when conducting teaching practice at school. In this course students are equipped with basic techniques in playing volleyball and how to construct volleyball learning tools, then students are able to practice teaching in small groups. This study employs a qualitative approach with a classroom action research design that follows the lecture schedule. The research procedure is divided into two cycles, with each cycle consisting of five stages: planning, action, observation, evaluation, and reflection. This research was conducted in two cycles and the time required was 5 weeks for each cycle so that the total time required was 10 weeks with two cycles. The research subjects were 50 students who took the volleyball learning course. Data collection methods include observations and interviews. The results of the study show that in an effort to increase student self-confidence, the strategy chosen is role-playing which provides broad opportunities for students to explore themselves in order to be able to demonstrate their quality in front of other friends to become teachers in the teaching practice of the material chosen by each student. In this study, the role-playing technique was seen to be successful in increasing the self-confidence of the students. Keyword: self-confidence, Role-playing, Learning, Volleyball

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Influence of the sport specific training background on the symmetry of the single legged vertical counter movement jump among female ballet dancers and volleyball players

Cited by 5 publications

References 35 publications

Countermovement Jump Performance Is Related to Ankle Flexibility and Knee Extensors Torque in Female Adolescent Volleyball Athletes

Countermovement Jump Performance Is Related to Ankle Flexibility and Knee Extensors Torque in Female Adolescent Volleyball Athletes

Analysis of the Dominant Aspects of Libero’s Basic Skills

Self-Confidence Conceptual Model Development in Volleyball Learning Courses

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