The relationship between jumping performance, isokinetic strength and dynamic postural control in elite youth soccer players

Śliwowski, Robert; Grygorowicz, Monika; Wieczorek, Andrzej; Jadczak, Łukasz

doi:10.23736/s0022-4707.17.07289-9

Cited by 18 publications

(12 citation statements)

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“…The second study found also shows a correlation between the isokinetic torque of concentric knee extensors and maximum countermovement jump height [ 17 ]. However, like most studies on this field, this study used bilateral jumps, limiting possible comparisons with our findings.…”

Section: Discussionmentioning

confidence: 99%

“…Another study measuring knee extension torque and bilateral countermovement jump data after a period of Nordic exercise training showed that both isokinetic parameters and bilateral countermovement jump maximum height improved in a similar, but proportional, degree [ 24 ]. Another similar study using Pearson’s correlation tests indicated that there was a significant positive relationship between vertical jumping height and knee extension movements [ 17 ]. A multiple regression analysis indicated that linear combinations of isokinetic torques accounted for 38% and 42% of the countermovement and squat jumping height variance, respectively.…”

Section: Discussionmentioning

confidence: 99%

“…The participant sample size followed the example of 20–30 subjects used in a similar study with isokinetic and unilateral countermovement jump comparisons [ 17 ]. To reduce heterogenicity we limited our sample to players from the same soccer team with similar training regimes and nutritional intake.…”

Section: Methodsmentioning

confidence: 99%

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Association between Concentric and Eccentric Isokinetic Torque and Unilateral Countermovement Jump Variables in Professional Soccer Players

Alves

Scoz

Burigo

et al. 2022

JFMK

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Isokinetic tests have been highly valuable to athletic analysis, but their cost and technical operation turn them inaccessible. The purpose of this study was to verify the correlation between unilateral countermovement jump variables and isokinetic data. Thirty-two male professional soccer players were subjected to the isokinetic testing of both knee extensors and flexors in concentric and eccentric muscle contractions. They also executed unilateral countermovement vertical jumps (UCMJ) to compare maximum height, ground reaction force, and impulse power with isokinetic peak torque. Data analysis was conducted through Pearson correlation and linear regression. A high correlation was found between dominant unilateral extensor concentric peak torque and the UCMJ maximum height of the dominant leg. The non-dominant leg jump showed a moderate correlation. No other variable showed statistical significance. Linear regression allowed the generation of two formulae to estimate the peak torque from UCMJ for dominant and non-dominant legs. Although few studies were found to compare our results, leading to more studies being needed, a better understanding of the unilateral countermovement jump may be used in the future as a substitute to the expensive and technically demanding isokinetic testing when it is unavailable, allowing the assessment of lower limb physical asymmetries in athletic or rehabilitation environments.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Association between Concentric and Eccentric Isokinetic Torque and Unilateral Countermovement Jump Variables in Professional Soccer Players

Alves

Scoz

Burigo

et al. 2022

JFMK

View full text Add to dashboard Cite

show abstract

“…Considering that the number of studies investigating the athletic performance (particularly jumping) levels of deaf athletes is limited, it is assumed that it will be a correct method to evaluate the physiological adaptation in the body when interpreting the performance outputs of these athletes. In their studies, Vuillerme et al (2002) and Śliwowski et al (2018) emphasized that the best performance of a sportive movement depended on having appropriate postural coordination in the body. In this direction, Trecroci et al (2015) stated that a jump-based training practice such as “jumping rope” performed in addition to standard football training improves balance and motor performance.…”

Section: Discussionmentioning

confidence: 99%

Bilateral counter movement jump, squat, and drop jump performances in deaf and normal-hearing volleyball players: a comparative study

Makaracı¹,

Özer²,

Soslu³

et al. 2021

J Exerc Rehabil

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Since deaf athletes do not have any physical deficiencies, it is known that they can easily participate in sports competitions if their communication problems are resolved. This study aimed to compare the performances of olympic deaf and elite normal-hearing volleyball players in different jumping test protocols. A total of 26 male volleyball players participated in the study, comprised of 12 olympic level deaf and 14 elite level normal-hearing. Following anthropometric measurements, athletes performed bilateral counter movement, squat and drop jump tests on a force plate. Each test was performed 3 times with maximal effort separated by 45 seconds of passive recovery and the mean of the three trials was selected for analysis. Independent Samples t-test was used to compare the differences in mean values of jumping test parameters between the groups. Normal-hearing athletes are observed to have significantly better scores than deaf athletes in all test protocols. Considering that the number of studies on athletic performance in deaf athletes is limited, it can be said that our study will contribute to researchers and coaches in respect of detecting a key ability in volleyball, such as jumping, in different jump protocols.

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“…Muscle training specific to strength development requires training adapted programs, typical of the game of football-tennis that must be based on in-depth knowledge of the skeletal muscle structure of the lower limbs (gluteal muscles, thigh muscles, tailor, femoral quadriceps, femoral biceps, thigh adductors), leg muscles (gastrocnemius, pronators and supinator of the leg, flexors and extensors), and plantar muscles (extensors of the toes and soles)), the type of voluntary muscle contractions, how to select and activate muscular fibres, and complex mechanisms specific to muscle contraction [11][12][13][14][15]. The balanced development of the muscles of the lower limbs of the football-tennis players represents an important condition for the optimization of the technical and physical performances [16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Optimizing the Explosive Force of the Elite Level Football-Tennis Players through Plyometric and Specific Exercises

Gherghel

Bădău

et al. 2021

IJERPH

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The aim of the research was to implement an athletic program to improve the explosive force in order to optimize physical fitness at the level of elite football-tennis players and evaluate the progress made through specific tests using the Opto Jump. The research included 10 elite European and world-class players, on whom an experimental program was applied in order to improve the explosive force of the limbs in conditions of speed, endurance, and dynamic balance. Study tests: five vertical jumps on the spot, on the left/right leg; five back and forth jumps on the left/right leg; five left/right side jumps on the left/right leg; vertical jumps on both legs 60 s; BFS vertical jumps. For each test, the following parameters specific to the explosive force were statistically analyzed: contact time (s); flight time (s); jump height (cm), jump power (w/kg); RSI—Reactive Strength Index, defined as Height (m/s). In the study, the average value of the parameters specific to the jumps performed in each test was taken into account. During the study, the tests were performed and processed on the Opto Jump device and software. In all tests of the experiment monitored through Opto Jump, significant progress was made in the final test compared to the initial one, which demonstrates the efficiency of the physical training program implemented for the development of explosive force, with an impact on the sports performance of elite players. The most relevant results obtained for the left leg regarding the improvement of the explosive force of the lower limbs materialized in the jump height parameter was in the test of five vertical jumps on one leg on the spot, and for the right leg in the tests of: five back and forth jumps and five left/right side jumps. The most significant advances in the study were in the tests, in descending order of their weight: 60 s vertical jumps on both legs; five back-and-forth jumps and five left/right side jumps, five vertical jumps on one leg standing, and BFS vertical jumps.

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The relationship between jumping performance, isokinetic strength and dynamic postural control in elite youth soccer players

Cited by 18 publications

References 0 publications

Association between Concentric and Eccentric Isokinetic Torque and Unilateral Countermovement Jump Variables in Professional Soccer Players

Association between Concentric and Eccentric Isokinetic Torque and Unilateral Countermovement Jump Variables in Professional Soccer Players

Bilateral counter movement jump, squat, and drop jump performances in deaf and normal-hearing volleyball players: a comparative study

Optimizing the Explosive Force of the Elite Level Football-Tennis Players through Plyometric and Specific Exercises

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