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Tong TH, Wang GW. Anthropometric and physical fitness indicators in the combine draft between the finalist and the eliminated player in the national basketball association all-star slam dunk contest. PLoS One 2024; 19:e0299262. [PMID: 38427631 PMCID: PMC10906826 DOI: 10.1371/journal.pone.0299262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 02/07/2024] [Indexed: 03/03/2024] Open
Abstract
Little is known about the difference of anthropometry and physical fitness between the finalist and eliminated player in the NBA all star slam dunk contest. This study aimed to compare the difference on anthropometric and physical fitness indicator in the combine draft between finalist and eliminated player in the national basketball association all star slam dunk contest. Draft data of 32 basketball players (N = 32, age in draft year: 20.69±2.28 years old, height without shoes: 196.75±8.68 cm, weight: 96.85±10 kg, body fat percentage: 6.07±1.23%) participating in the 2000-2015 draft and 2003-2023 slam dunk contest was selected from national basketball association database. It was classified into finals group (FG) (N = 16) and elimination group (EG) (N = 16). Independent sample t-test with cohen's d was adopted for evaluating the statistical significance of intergroup difference and its effect size. The result indicates that Finalist group was significant less than elimination group on height without shoes (FG vs EG: 193.43±9.47 cm vs 200.06±6.52 cm, P<0.05), standing reach (FG vs EG: 257.66±12.32 cm vs 268.29±10.03 cm, P<0.05) and weight (FG vs EG: 93.38±7.37 kg vs 100.33±11.25 kg, P<0.05). Conversely, compared to elimination group,finalist group has significant better performance on three quarter court sprint (FG vs EG: 3.15±0.1 s vs 3.26±0.12 s, P<0.05), standing vertical jump (FG vs EG: 84.88±5.13 cm vs 78.83±4.9 cm, P<0.05) and max vertical jump (FG vs EG: 102.39±6.47 cm vs 94.79±8.34 cm, P<0.05). However, effect size analysis indicated that height without shoes,standing reach,weight (cohen's d = 0.73-0.959, 0.7≤cohen's d<1.3, moderate) from the anthropometric indicator and three quarter court sprint, standing vertical jump, and max vertical jump (cohen's d = 0.97-1.21, 0.7≤cohen's d<1.3, moderate) from physical fitness indicator has moderate effect size, whereas effect size of body fat percentage, wingspan and lane agility time (cohen's d = 0.31-0.67, 0.3≤cohen's d<0.7, small) was small. To conclude, specific anthropometric and physical fitness indicator shows clear difference between finals group and elimination group. Height without shoes, standing reach,weight in anthropometry and three quarter court sprint, standing vertical jump, and max vertical jump in physical fitness are key indicator to slam dunk performance. In line with the result in the study, NBA staff can select suitable rookies for slam dunk contest. Similiarly, coach from NBA or other basketball league, who want to improve the player's slam dunk performance, should use specific training programs to develop the slam dunk-related indicator.
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Affiliation(s)
- Tse-hau Tong
- Department of Astronautical Science and Mechanics, Harbin Institute of Technology, Harbin, Heilongjiang, China
| | - Guo-wei Wang
- Strength and Conditioning and Sport Performance Lab, Institute of Physical Education, Zhengzhou University, Zhengzhou, Henan, China
- Institute of Physical Education, Zhengzhou University, Zhengzhou, Henan, China
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Tooth C, Schwartz C, Gofflot A, Bornheim S, Croisier JL, Forthomme B. Preseason shoulder screening in volleyball players: is there any change during season? JSES Int 2023; 7:662-667. [PMID: 37426908 PMCID: PMC10328776 DOI: 10.1016/j.jseint.2023.03.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2023] Open
Abstract
Background Volleyball players sollicit their shoulder with high velocity and high ranges of motion. Musculoskeletal adaptations have been described after some years of practice but have not been explored after some months of practice. The objective of this study was to analyze the short-term evolution of shoulder clinical measures and functional performance in youth competitive volleyball players. Methods Sixty-one volleyball players were assessed twice, at preseason and at midseason. Shoulder internal and external rotation range of motion as well as forward shoulder posture and scapular upward rotation were measured in all players. Two functional tests were also performed: the upper quarter Y-balance test and the Single-arm medicine ball throw. The results obtained at midseason were compared to those measured at preseason. Results Compared to preseason, an increase in absolute value of shoulder external rotation, total rotation range of motion and forward shoulder posture were observed at midseason (P < .001). An increase in side-to-side difference for shoulder internal rotation range of motion was also observed during the season. As for scapular kinematics, scapular upward rotation was significantly decreased at 45° and increased at 120° of abduction at midseason. Concerning functional tests, an increase in throwing distance in the single-arm medicine ball throw was observed at midseason while no change was noted for the upper quarter Y-balance test. Conclusion Significant changes in clinical measures and functional performance were observed after some months of practice. Since some variables have been suggested to be correlated to a higher risk of shoulder injuries, the current study emphasizes the importance of regular screening in order to highlight injury risk profiles throughout the season.
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Affiliation(s)
- Camille Tooth
- Laboratory of Human Motion Analysis, University of Liège, Liège, Belgium
- Department of Physical Medicine and Rehabilitation, University of Liège, Liège, Belgium
| | - Cédric Schwartz
- Laboratory of Human Motion Analysis, University of Liège, Liège, Belgium
| | - Amandine Gofflot
- Department of Physical Medicine and Rehabilitation, University of Liège, Liège, Belgium
| | - Stephen Bornheim
- Department of Physical Medicine and Rehabilitation, University of Liège, Liège, Belgium
| | - Jean-Louis Croisier
- Laboratory of Human Motion Analysis, University of Liège, Liège, Belgium
- Department of Physical Medicine and Rehabilitation, University of Liège, Liège, Belgium
| | - Bénédicte Forthomme
- Laboratory of Human Motion Analysis, University of Liège, Liège, Belgium
- Department of Physical Medicine and Rehabilitation, University of Liège, Liège, Belgium
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Nikolaidou ME, Sotiropoulos K, Barzouka K. Postural balance ability and vertical jumping performance in female veteran volleyball athletes and non-athletes. Front Sports Act Living 2023; 5:1109488. [PMID: 37252427 PMCID: PMC10213918 DOI: 10.3389/fspor.2023.1109488] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Accepted: 04/25/2023] [Indexed: 05/31/2023] Open
Abstract
Lifetime participation in sports is associated with improved components of physical conditioning. The main purpose was to cross-sectionally investigate postural balance and vertical jumping performance in athletes with different histories of sports participation and secondarily to examine the restriction of vision on balance ability. A final aim was to investigate possible associations between balance and jumping performance. We hypothesized higher balance and jumping performance in active veteran volleyball athletes compared to retired athletes and non-athletes, suggesting a positive effect of continuous systematic training in active veteran athletes. We also hypothesized greater negative effect of vision removal on balance in the veteran compared to non-athletes due to athletes' stronger reliance on visual information. Eighty-one healthy middle-aged women (mean (standard deviation) 50 (5) years) were assigned to three experimental groups, a retired (n = 39, recreationally active former athletes), an active (n = 27, training 2days/week x 1.5 h/session) veteran volleyball athletes' and a control group (n = 15, sedentary participants). Participants completed an assessment of single-legged quiet stance trials with either left or right leg with eyes open while standing barefoot on a force plate and two-legged trials with both eyes open or closed. They also executed a protocol of countermovement jumps. Statistical analyses included univariate and full factorial ANOVAs with group and vision as fixed and repeated-measures factors and simple linear regression analysis. In the single-legged balance task, solely the mediolateral sway range was greater for the active (p < 0.001) and retired athletes (p < 0.001) compared to non-athletes, whereas in the two-legged stance, no differences among groups were found (p > 0.05). Restriction of vision deteriorated balance performance similarly in the three groups as a significant vision effect was found for path length (p < 0.001), anteroposterior (p < 0.001) and mediolateral sway (p < 0.05). The active and retired athletes had significantly (p < 0.001) greater height, mean and maximal power in countermovement jump compared to non-athletes. Results showed weak associations (average R2 = 9.5%) of balance with jumping performance only in the veteran volleyball athletes' group. Overall, the findings showed that retired volleyball athletes exhibited similar balance ability and vertical jumping performance as the active ones, suggesting a positive impact of prior experience in systematic training.
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García-de-Alcaraz A, Díez-Fernández DM, Baena-Raya A. Physical-Performance Changes Over the Season: Are They Related to Game-Performance Indicators in Elite Men Volleyball Players? Int J Sports Physiol Perform 2023:1-8. [PMID: 37100426 DOI: 10.1123/ijspp.2022-0458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 03/14/2023] [Accepted: 03/28/2023] [Indexed: 04/28/2023]
Abstract
BACKGROUND The development and influence of physical capabilities and game action performance over the course of the season are a big challenge for coaches and players. PURPOSE The aims of the present study were to examine (1) the seasonal changes in the physical capabilities (mechanical and kinematic) and game-performance indicators in top-level men volleyball players and (2) the relationship between these physical capabilities and game-performance indicators in official matches. METHODS Eleven top-level players participated. Players were physically tested 3 times during the season. Before each test, players' match performance (11 sets) was analyzed according to the level of opposition and match location. The percentage of change, statistical differences over the season (Friedman and Wilcoxon tests), and associations between variables (Spearman r) were calculated (P < .05) among mechanical (force-velocity profile during vertical jump and bench press), kinematic (jump height and spike ball speed), and game action performance features (coefficient, efficacy, and percentage of errors in serve, attack, and block). RESULTS The theoretical maximal force and velocity during vertical jump and bench press, respectively; the peak spike ball speed; and the serve efficacy significantly increased over the season. Moreover, there was a significant reduction in serve errors as the jump height increased (r = -.44; P = .026), as well as a significant increase in serve errors as the peak spike ball speed increased (r = -.62; P = .001). CONCLUSION These findings reveal how the physical and game action performance variables evolve and interact during the season. This may help coaches and trainers to monitor and analyze the most relevant volleyball performance factors.
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Affiliation(s)
- Antonio García-de-Alcaraz
- Department of Education, Faculty of Education Sciences, University of Almería, Almería,Spain
- SPORT Research Group (CTS-1024), CERNEP Research Center, University of Almería, Almería,Spain
| | - David M Díez-Fernández
- Department of Education, Faculty of Education Sciences, University of Almería, Almería,Spain
- SPORT Research Group (CTS-1024), CERNEP Research Center, University of Almería, Almería,Spain
| | - Andrés Baena-Raya
- Department of Education, Faculty of Education Sciences, University of Almería, Almería,Spain
- SPORT Research Group (CTS-1024), CERNEP Research Center, University of Almería, Almería,Spain
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Is Asymmetry Different Depending on How It Is Calculated? Symmetry (Basel) 2022. [DOI: 10.3390/sym14102195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
This study aimed to (1) determine the magnitude and direction of asymmetry in volleyball players, (2) establish asymmetry thresholds, and (3) explore differences depending on the test used and the players’ category. Twenty-nine junior and senior male volleyball players were assessed through a muscle asymmetry battery test: active knee extension test (AKE), single-leg countermovement jump (SL-CMJ), single-leg squat jump (SL-SJ), triple hop test for distance (THTD), modified 20-yard shuttle run, Y-balance test, single-leg one-repetition maximum in leg press test (1RM-SL), and lateral symmetry in radial muscle belly displacement through Tensiomyography in the biceps femoris and rectus femoris. A two-way ANOVA alongside an individual analysis of asymmetry thresholds was used to analyze the test and categorize the influence on the magnitude and the direction of asymmetry. The 1RM-SL, SL-SJ, and the lateral symmetry in radial muscle belly displacement showed a clear asymmetry towards the non-dominant side, while the AKE, SL-CMJ, and THTD showed an asymmetry towards the dominant side. The magnitude of the asymmetry was highly variable between tests (1.46–30.26%). The individualized asymmetry thresholds revealed that the percentage of asymmetrical players varied depending on the type of test used. In conclusion, the type of test used determines the magnitude and direction of asymmetry in well-trained volleyball players.
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Pawlik D, Mroczek D. Fatigue and Training Load Factors in Volleyball. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph191811149. [PMID: 36141425 PMCID: PMC9517593 DOI: 10.3390/ijerph191811149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 09/02/2022] [Accepted: 09/02/2022] [Indexed: 05/14/2023]
Abstract
The purpose of this article was to determine the internal and external loads experienced by volleyball players in a weekly cycle during the competitive season. Using accelerometers, as well as subjective rating perceived exertion (RPE) and total quality recovery scale (TQR) questionnaires, eleven female athletes were monitored during five days of training sessions over the course of the 2021 season. The data were evaluated for trends during the start period in preparation for the championship tournament. Analysis of the accelerometer data revealed a relationship between RPE and session rating perceived exertion (s-RPE), as well as the number of total accelerations. It was reported that on the training days of the same well-being level, the jump number values were significantly different. The results suggest that monitoring athletes for the number of accelerations can be used to understand the needs of volleyball players and to improve the design of training and recovery days to optimize athletes' well-being.
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7
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Garcia S, Delattre N, Berton E, Divrechy G, Rao G. Comparison of landing kinematics and kinetics between experienced and novice volleyball players during block and spike jumps. BMC Sports Sci Med Rehabil 2022; 14:105. [PMID: 35690791 PMCID: PMC9188216 DOI: 10.1186/s13102-022-00496-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 06/01/2022] [Indexed: 11/10/2022]
Abstract
BACKGROUND The practice of volleyball requires many jumps. During landing, anterior cruciate ligament injuries may occur with high-risk lower limb kinematics and kinetics. Differences in landing strategies between experienced and novice volleyball players have not been fully explored. The purpose of the study was to compare lower limb kinematics and kinetics in experienced and novice volleyball players when performing volleyball specific jumps. METHODS A total of 30 healthy males, 15 experienced and 15 novice volleyball players, participated in the study. Participants performed block and spike jumps at a controlled jump height. Hip, knee and ankle joints angles at initial ground contact and ranges of motion in the sagittal plane, knee joint angles and moments in the frontal plane, vertical ground reaction force peak and loading rate were analyzed to investigate the expertise effect. RESULTS Experienced volleyball players landed with larger ankle dorsiflexion range of motion compared to novices. For the spike jump, experienced players landed with larger ankle plantarflexion angles at initial contact and larger ankle dorsiflexion ranges of motion, and for the block jump, they landed with larger knee flexion ranges of motion. Experienced players jumped significantly higher than novices. No difference was found in vertical ground reaction force peaks and loading rates. CONCLUSIONS Although the experienced group jumped higher than the novice group, no difference was found in ground reaction force parameters. These findings highlight that the experience of volleyball players acquired during regular trainings and competitions may play an important role in landing kinematics and kinetics to reduce the injury risk.
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Affiliation(s)
- Sébastien Garcia
- Movement Sciences Department, Decathlon SportsLab, 59000, Lille, France. .,CNRS, Insitute of Movement Sciences, Aix-Marseille University, 13007, Marseille, France.
| | - N Delattre
- Movement Sciences Department, Decathlon SportsLab, 59000, Lille, France
| | - E Berton
- CNRS, Insitute of Movement Sciences, Aix-Marseille University, 13007, Marseille, France
| | - G Divrechy
- Movement Sciences Department, Decathlon SportsLab, 59000, Lille, France
| | - G Rao
- CNRS, Insitute of Movement Sciences, Aix-Marseille University, 13007, Marseille, France
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Iglesias-Caamaño M, Álvarez-Yates T, Carballo-López J, Cuba-Dorado A, García-García O. Interday Reliability of a Testing Battery to Assess Lateral Symmetry and Performance in Well-Trained Volleyball Players. J Strength Cond Res 2022; 36:895-901. [PMID: 35318998 DOI: 10.1519/jsc.0000000000003630] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
ABSTRACT Iglesias-Caamaño, M, Álvarez-Yates, T, Carballo-López, J, Cuba-Dorado, A, and García-García, O. Interday reliability of a testing battery to assess lateral symmetry and performance in well-trained volleyball players. J Strength Cond Res 36(4): 895-901, 2022-This study aimed to determine the relative and absolute interday reliability of a testing battery for lateral asymmetry detection and performance in well-trained volleyball players and to determine whether retaining for analysis the best or the average value of 3 attempts would modulate the interday reliability and the magnitude of asymmetry. Thirteen Superleague-2 male volleyball players performed on 3 different days a 5-test battery composed of 4 tests for assessing muscle asymmetries: active knee extension, Y-balance test (YBT), modified 20-yard shuttle run (M-20Y), and single-leg countermovement jump; and one for volleyball sports performance: attack jump (AJ). The intraclass correlation index and coefficient of variation (CV) together with the standard error of measurement (SEM, %SEM) and the minimum detectable change (MDC, %MDC) were taken to calculate relative and absolute reliability. Two-way repeated-measures analysis of variance was used to establish the differences between the best value and the average value in each session. The low %MDC (<10%) suggests that all the tests that make up the testing battery would have good sensitivity to detect possible asymmetries. All tests have shown an excellent interday absolute reliability (CV <4.5%; %SEM < 5%), both when retaining the best value and the average value of the 3 attempts. In addition, AJ and YBT (on both legs) obtained a good-excellent relative reliability, whereas the M-20Y test seems to show a lower relative reliability. Retaining the best value or the average value to determine the magnitude and direction of asymmetry seems to be equally reliable with no differences between both values.
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Affiliation(s)
- Mario Iglesias-Caamaño
- Laboratory of Sports Performance, Physical Condition and Wellness, Faculty of Education and Sport Sciences, University of Vigo, Pontevedra, Spain
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Volleyball Competition on Consecutive Days Modifies Jump Kinetics but Not Height. Int J Sports Physiol Perform 2022; 17:711-719. [PMID: 35193111 DOI: 10.1123/ijspp.2021-0275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 08/31/2021] [Accepted: 10/14/2021] [Indexed: 11/18/2022]
Abstract
PURPOSE In volleyball, jump execution is critical for the match outcome. Game-play-related neuromuscular impairments may manifest as decreased jump height (JH) or increased jump total duration, both of which are pivotal for performance. To investigate changes in JH and kinetics with game play, the authors conducted a prospective exploratory analysis using minimal-effect testing (MET) and equivalence testing with the 2 one-sided tests procedure, univariate, and bivariate functional principal component analysis, respectively. METHODS Twelve male varsity athletes completed 3-set matches on 2 consecutive days. Countermovement jumps were performed on a force platform immediately prematch and postmatch on days 1 and 2 and once on days 3 and 4. RESULTS Across sessions, JH was equivalent (P < .022, equivalence test), while total duration reported inconclusive changes (P > .227). After match 2, MET indicated that relative force at zero velocity (P = .036) decreased, while braking duration (P = .040) and time to peak force (P = .048) increased compared with baseline. With the first and second functional principal components, these alterations, together with decreased relative braking rate of force development (P = .092), were already evident after match 1. On day 4, MET indicated that relative peak force (P = .049), relative force at zero velocity (P = .023), and relative braking rate of force development (P = .021) decreased, whereas braking duration (P = .025) increased from baseline. CONCLUSIONS Impairments in jump kinetics were evident from variables related to the countermovement-jump braking phase, while JH was equivalent. In addition to these experimental findings, the present research provides information for the choice of sample size and smallest effect size of interest when using MET and 1- and 2-dimensional analyses for countermovement-jump height and kinetics.
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Pleša J, Kozinc Ž, Smajla D, Šarabon N. The association between reactive strength index and reactive strength index modified with approach jump performance. PLoS One 2022; 17:e0264144. [PMID: 35176119 PMCID: PMC8853549 DOI: 10.1371/journal.pone.0264144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Accepted: 02/03/2022] [Indexed: 12/04/2022] Open
Abstract
Jumping performance is one of the key components of volleyball game, thus evaluating jumping ability through different biomechanical variables offers opportunity for performance optimization. The aim of this study was to assess the associations between reactive strength index (RSI), reactive strength index modified (RSImod) and approach jump performance in male volleyball players. Forty volleyball players performed drop jump (DJ) form 40 cm high box, bilateral and unilateral countermovement jumps (CMJ) and approach jump. RSI in DJ was calculated as the ratio between jump height and ground contact time, while the RSI in CMJ tasks (RSImod) was calculated as ratio between jump height and jump time. Our results indicate that the relationships among different RSI variants and approach jump in volleyball players are moderate to strong (r = 0.42–0.73), with the highest correlations being observed for RSImod from bilateral CMJ (r = 0.676–0.727). Those observations are in line with the principle of movement specificity, which suggests that the best performance indicator should be the task that best resembles the demands of the sport-specific movements. Further research is needed to reveal more about the potential of implementing these findings for training optimization through monitoring RSI and RSImod values.
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Affiliation(s)
- Jernej Pleša
- Faculty of Health Sciences, University of Primorska, Izola, Slovenia
| | - Žiga Kozinc
- Faculty of Health Sciences, University of Primorska, Izola, Slovenia
- Andrej Marušič Institute, University of Primorska, Koper, Slovenia
| | - Darjan Smajla
- Faculty of Health Sciences, University of Primorska, Izola, Slovenia
- InnoRenew CoE, Human Health Department, Izola, Slovenia
| | - Nejc Šarabon
- Faculty of Health Sciences, University of Primorska, Izola, Slovenia
- InnoRenew CoE, Human Health Department, Izola, Slovenia
- S2P, Science to Practice, Ltd., Laboratory for Motor Control and Motor Behavior, Ljubljana, Slovenia
- * E-mail:
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Patellar Tendon Force Differs Depending on Jump-Landing Tasks and Estimation Methods. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12010488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Patellar tendinopathy is a chronic overuse injury of the patellar tendon which is prevalent in jump-landing activities. Sports activities can require jumping not only with a vertical component but also in a forward direction. It is yet unknown how jumping in the forward direction may affect patellar tendon forces. The main purpose of this study was to compare PTF between landings preceded by a vertical jump and a forward jump in volleyball players. The second purpose was to compare two different estimation methods of the patellar tendon force. Fifteen male volleyball players performed vertical and forward jump-landing tasks at a controlled jump height, while kinetics and kinematics were recorded. Patellar tendon forces were calculated through two estimation methods based on inverse dynamic and static optimization procedures, using a musculoskeletal model. Results showed that forward jump-landing generated higher patellar tendon forces compared to vertical jump-landing for both estimation methods. Surprisingly, although the static optimization method considered muscle co-contraction, the inverse kinematic method provided statistically significant higher patellar tendon force values. These findings highlight that limiting the forward velocity component of the aerial phase appears to reduce the load on the patellar tendon during landing and may help to prevent patellar tendinopathy.
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Berriel GP, Schons P, Costa RR, Oses VHS, Fischer G, Pantoja PD, Kruel LFM, Peyré-Tartaruga LA. Correlations Between Jump Performance in Block and Attack and the Performance in Official Games, Squat Jumps, and Countermovement Jumps of Professional Volleyball Players. J Strength Cond Res 2021; 35:S64-S69. [PMID: 33337704 DOI: 10.1519/jsc.0000000000003858] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
ABSTRACT Berriel, GP, Schons, P, Costa, RR, Oses, VHS, Fischer, G, Pantoja, PD, Kruel, LFM, and Peyré-Tartaruga, LA. Correlations between jump performance in block and attack and the performance in official games, squat jumps, and countermovement jumps of professional volleyball players. J Strength Cond Res 35(12S): S64-S69, 2021-The jump used in performance tests must be chosen according to the specificity. The aims of the present study were to analyze the correlations between height and reach of block and attack jumps and the effectiveness of such actions in official games and also the relationship between height and reach of attack and block jumps and the height achieved in squat jump (SJ), countermovement jump (CMJ), and CMJ with an arms swing (CMJA). Thirteen, male, professional volleyball players who competed in the Brazilian Volleyball Super League participated in this study. Evaluations of height and reach of attack and block jumps and height of SJ, CMJ, and CMJA were performed. Attack and block effectiveness were evaluated in 8 official games. Pearson's product-moment correlation coefficient was used, and the significance level was set at α ≤ 0.05. Attack jump height correlated with attack effectiveness in the games (r = 0.57; p = 0.05). Block jump height presented a very large correlation with SJ height (r = 0.82; p < 0.01), and attack jump height presented a very large correlation with CMJ height (r = 0.86; p < 0.01). Success in attack actions is directly associated with the athlete's ability to perform a vertical jump. Moreover, SJ, CMJ, and CMJA tests provided information of great applicability for the volleyball players' needs. Because of the relevance of the results, these tests should be included in the assessment routine of professional volleyball players.
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Affiliation(s)
| | - Pedro Schons
- Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | | | | | - Gabriela Fischer
- Federal University of Santa Catarina, Florianópolis, Brazil; and
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Slovák L, Zahradník D, Farana R, Svoboda Z, Alaei F, Sarvestan J. Kinetic analysis of volleyball spike jump among young female volleyball players. INT J PERF ANAL SPOR 2021. [DOI: 10.1080/24748668.2021.1996906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Lukáš Slovák
- Human Motion Diagnostic Center, University of Ostrava, Ostrava, Czechia
| | - David Zahradník
- Human Motion Diagnostic Center, University of Ostrava, Ostrava, Czechia
| | - Roman Farana
- Human Motion Diagnostic Center, University of Ostrava, Ostrava, Czechia
| | - Zdeněk Svoboda
- Department of Natural Sciences in Kinanthropology, Faculty of Physical Culture, Palacky University Olomouc, Olomouc, Czech Republic
| | - Fatemeh Alaei
- Department of Natural Sciences in Kinanthropology, Faculty of Physical Culture, Palacky University Olomouc, Olomouc, Czech Republic
| | - Javad Sarvestan
- Department of Natural Sciences in Kinanthropology, Faculty of Physical Culture, Palacky University Olomouc, Olomouc, Czech Republic
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Unilateral versus Bilateral Landing after Spike Jumps in Male and Female Volleyball: A Systematic Review. Symmetry (Basel) 2021. [DOI: 10.3390/sym13081505] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Background: The spike is a key action in volleyball, and the landing technique and its asymmetries are commonly associated with an increased risk of injury. Objectives: The aim of this systematic review was to assess how male and female volleyball players land (i.e., unilaterally, or bilaterally) after spike jumps in matches and analytical settings (field or laboratory). Methods: The Preferred Reporting Items for Systematic Reviews and Meta-Analyses 2020 guidelines were followed, with eligibility criteria defined according to participants, interventions, comparators, study design (PICOS): (p) healthy indoor volleyball players of any sex, age group, or competitive level; (i) exposure to landing after spike actions during official matches AND/OR simulated 6 vs. 6 games AND/OR analytical training conditions AND/OR laboratorial experiments; (c) not mandatory; (o) data on landing mechanics after spike actions, including reporting of whether the landing was unilateral or bilateral; (s) no restrictions imposed on study design. Searches were performed in seven electronic databases (Cochrane Library, EBSCO, PubMed, Scielo, Scopus, SPORTDiscus, and Web of Science) on 23 April 2021. Results: Automated searches provided 420 results. Removal of 119 duplicates resulted in 301 records being screened for titles and abstracts. A total of 25 studies were eligible for full-text analysis. Of these, eight studies were deemed eligible for inclusion in the review. Studies showed that (i) attackers landed asymmetrically 68% of the times (61% left leg, 7% right leg); (ii) bilateral asymmetries were observed for the hip, knee, and ankle joints; (iii) bilateral asymmetries were observed even when players were instructed to land evenly on two feet; (iv) landing contact of the leg opposite to the hitting arm preceded the contact of the homolateral leg. One match analysis study showed that men landed more often on the left (31.5%) or right foot (8.5%) than women (23.7% and 1.6%). Conclusions: Studies analyzing spike landing showed a prevalence of unilateral landings (mostly the left leg first, for right-handed players) in men and women but more prevalently in men. Registration INPLASY202140104, DOI: 10.37766/inplasy2021.4.0104.
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15
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Carvalho CAM, Guirelli AR, Maria Dos Santos J, Felicio LR. Reliability of 2D kinematics during landing of volleyball athletes after exhaustion. J Bodyw Mov Ther 2021; 27:579-583. [PMID: 34391290 DOI: 10.1016/j.jbmt.2021.05.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 04/17/2021] [Accepted: 05/13/2021] [Indexed: 11/28/2022]
Abstract
INTRODUCTION It is possible to quantify changes in movement patterns through kinematic analysis of landing, especially to quantify changes in pre and post exhaustion situations, however the reliability of this post exhaustion analysis is not known. OBJECTIVE To verify the inter and intra-examiner reliability of two-dimensional kinematic analysis during the landing of a vertical jump of volleyball athletes, pre and post exhaustion protocol. EXPERIMENTAL Thirty volleyball athletes were recruited, and kinematic analysis was performed during landing, pre and post exhaustion protocol. The angular measurements analyzed were: 1) frontal plane: knee valgus and 2) sagittal plane: anterior trunk inclination, knee flexion and tibiotarsal angle, performed by two examiners. The reliability calculation used the intraclass correlation coefficient (ICC), in addition to the error of measurement (SEM), the coefficient of variation (CV) and the minimum detectable difference (MDD). RESULTS Regarding reliability: ICC = 0.95-0.98 (pre) and ICC = 0.83-0.98 (post exhaustion). The CV presented heterogeneous values for the knee valgus and the inclination of the trunk, both pre and post protocol. The SEM from all angles presented values that varied from 0.74°-2.33° and the MDD ranged from 2.55°-5.54° pre protocol and 2.05°-6.45° post protocol. CONCLUSION 2D kinematic evaluation can be used during landing, before and after the application of an exhaustion protocol, but professionals should pay attention to the angles of the knee valgus and the inclination of the trunk, as they have a large CV.
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Affiliation(s)
- Caio Augusto M Carvalho
- Student at the Post-Graduate Program in Physiotherapy UFTM/ UFU, Federal University of Uberlândia, Minas Gerais, Brazil
| | - Agnes R Guirelli
- Student at the Post-Graduate Program in Physiotherapy UFTM/ UFU, Federal University of Uberlândia, Minas Gerais, Brazil
| | - Júlia Maria Dos Santos
- Professor at the Physiotherapy Course - UFU, Federal University of Uberlândia, Minas Gerais, Brazil
| | - Lilian Ramiro Felicio
- Professor at the Physiotherapy Course - UFU, Federal University of Uberlândia, Minas Gerais, Brazil; Professor at the Post-Graduate Program in Physiotherapy UFTM/ UFU, Federal University of Uberlândia, Minas Gerais, Brazil.
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16
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Influence de la vitesse sur la détente verticale lors de l’exécution du smash en volley-ball. Sci Sports 2021. [DOI: 10.1016/j.scispo.2020.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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17
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Fílter A, Olivares Jabalera J, Molina-Molina A, Suárez-Arrones L, Robles-Rodríguez J, Dos’Santos T, Loturco I, Requena B, Santalla A. Effect of ball inclusion on jump performance in soccer players: a biomechanical approach. SCI MED FOOTBALL 2021; 6:241-247. [DOI: 10.1080/24733938.2021.1915495] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Alberto Fílter
- FSI Sport Research Lab, Granada, Spain
- Research Group Physical Activity, Health and Sport CTS-948, Pablo De Olavide University, Seville, Spain
| | - Jesús Olivares Jabalera
- FSI Sport Research Lab, Granada, Spain
- Sport and Health University Research Institute (iMUDS), Department of Physical and Sports Education, University of Granada, Granada, Spain
| | - Alejandro Molina-Molina
- Sport and Health University Research Institute (iMUDS), Department of Physical and Sports Education, University of Granada, Granada, Spain
- San Jorge University, Campus Universitario, Villanueva de Gállego, Zaragoza, Spain
| | - Luis Suárez-Arrones
- FSI Sport Research Lab, Granada, Spain
- Research Group Physical Activity, Health and Sport CTS-948, Pablo De Olavide University, Seville, Spain
- San Jorge University, Campus Universitario, Villanueva de Gállego, Zaragoza, Spain
| | | | - Thomas Dos’Santos
- FSI Sport Research Lab, Granada, Spain
- Faculty of Psychology and Sport, University of Huelva, Huelva, Spain
| | - Irineu Loturco
- FSI Sport Research Lab, Granada, Spain
- Department of Exercise and Sport Science, Musculoskeletal Science and sports medicine Research Centre, Manchester Metropolitan University, Manchester, United Kingdom
- NAR – Nucleus of High Performance in Sport, Sao Paulo, Brazil
- University of South Wales, Pontypridd Wales, UK
- Department of Human Movement Sciences, Federal University of São Paulo, Santos, Brazil
| | | | - Alfredo Santalla
- FSI Sport Research Lab, Granada, Spain
- Research Group Physical Activity, Health and Sport CTS-948, Pablo De Olavide University, Seville, Spain
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18
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Baena-Raya A, Soriano-Maldonado A, Rodríguez-Pérez MA, García-de-Alcaraz A, Ortega-Becerra M, Jiménez-Reyes P, García-Ramos A. The force-velocity profile as determinant of spike and serve ball speed in top-level male volleyball players. PLoS One 2021; 16:e0249612. [PMID: 33798256 PMCID: PMC8018657 DOI: 10.1371/journal.pone.0249612] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 03/19/2021] [Indexed: 11/19/2022] Open
Abstract
Understanding the relationship between mechanical variables derived from actions such as jumping, sprinting, or ballistic bench press throwing and sport-specific performance moves is of scientific and practical interest for strength and conditioning coaches for improving training programs. We examined the association between mechanical variables derived from the force-velocity (FV) profiles of the aforementioned actions and spike and serve ball speeds in elite volleyball players. Twenty-two male elite volleyball players (age: 24.3 ± 4.5 years; height: 1.89 ± 0.06 m; body mass: 86.3 ± 8.6 kg) were tested in two sessions. Squatting, sprinting, and bench press throwing FV profiles were determined in the first session, while spike and serve ball speeds were assessed in the second session. The theoretical maximal force (F0) of vertical jumping, the theoretical maximal velocity of sprinting, and the F0 of bench press throwing in ascending order, were strongly associated (rs range 0.53-0.84; p<0.05) with spike and serve ball speeds. These mechanical variables explained 20%-36% of the variability in spike and serve ball speeds, with a greater influence on the serve speed. These results suggest that assessing jumping, sprinting, and bench press throwing force-velocity profiles might help provide player-specific training programs and optimize performance in these technical-tactical actions in male elite volleyball players.
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Affiliation(s)
- Andrés Baena-Raya
- Department of Education, Faculty of Education Sciences, University of Almería, Almería, Spain
- SPORT Research Group (CTS-1024), CERNEP Research Center, University of Almería, Almería, Spain
| | - Alberto Soriano-Maldonado
- Department of Education, Faculty of Education Sciences, University of Almería, Almería, Spain
- SPORT Research Group (CTS-1024), CERNEP Research Center, University of Almería, Almería, Spain
| | - Manuel A. Rodríguez-Pérez
- Department of Education, Faculty of Education Sciences, University of Almería, Almería, Spain
- SPORT Research Group (CTS-1024), CERNEP Research Center, University of Almería, Almería, Spain
- * E-mail:
| | - Antonio García-de-Alcaraz
- Department of Education, Faculty of Education Sciences, University of Almería, Almería, Spain
- SPORT Research Group (CTS-1024), CERNEP Research Center, University of Almería, Almería, Spain
| | - Manuel Ortega-Becerra
- Physical Performance & Sports Research Center, Pablo de Olavide University, Seville, Spain
| | | | - Amador García-Ramos
- Department of Physical Education and Sport, Faculty of Sport Science, University of Granada, Granada, Spain
- Department of Sports Sciences and Physical Conditioning, Faculty of Education, Universidad Católica de la Santísima Concepción, Concepción, Chile
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19
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Dynamic Characteristics of Approach Spike Jump Tasks in Male Volleyball Players. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11062710] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The approach running spike-jump (RSJ) is a crucial technique in the sport of volleyball. Two types of RSJs are commonly used for the volleyball spike attack: (1) RSJ with one leg (RSJ-1L) and (2) RSJ with two legs (RSJ-2L). The purposes of the current study were to compare the kinematic and kinetic differences between the RSJ-1L and RSJ-2L. Ten male college volleyball players performed spike jumps by striking a stationary ball at maximal jump height. Data were collected by six infrared Qualisys motion-capture cameras (180 Hz), two AMTI force platforms (1800 Hz), and recorded by Qualisys Track Manager software. The RSJ-1L demonstrated the faster three-step approach running velocity, greater vertical GRF, and ankle, knee, and hip joint moment, but less jump height, shorter last step length and push-off time, smaller knee and hip joint flexion angles at the initial foot-contact, and knee range of motion compared to the RSJ-2L. The current study contributed to the understanding of biomechanical differences of the volleyball spike jumps and can be used to adapt to the volleyball training.
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20
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Gupta D, Jensen JL, Abraham LD. Biomechanics of hang-time in volleyball spike jumps. J Biomech 2021; 121:110380. [PMID: 33813214 DOI: 10.1016/j.jbiomech.2021.110380] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 02/19/2021] [Accepted: 03/03/2021] [Indexed: 10/21/2022]
Abstract
OBJECTIVE This study examined whether "hang", an extended period of greatly reduced or zero vertical velocity of the head and trunk created by inter-segmental interactions, would be seen during skilled volleyball player spike jumps. METHOD Fifteen skilled volleyball hitters (eight men and seven women, age 23.26 ± 3.22 years, height 1.86 ± 0.08 m, mass 77.53 ± 10.45 kg) performed spike jumps in two hitting conditions, flexing their knees during flight as much as possible and not flexing their knees during flight. We analyzed the effect of knee flexion on the vertical and temporal components of the trajectories of the head, trunk, legs and wrist of the hitting arm to study the existence of "hang" and its underlying mechanisms. RESULTS With knee flexion, unlike no knee flexion, the head and trunk (HT) demonstrated "hang", characterized by a longer time of near-zero vertical velocity of the head and trunk near mid-flight (p < 0.001). Analysis of the influence of the timing and extent of knee flexion on the HT center of mass trajectory revealed significant effects (p < 0.001).Women demonstrated longer "hang" during flight than men. Athletes in this study hit the ball later in flight in the "hang" condition (p < 0.001). CONCLUSION An extended period of reduced vertical velocity of the head and trunk near mid-flight resulted from knee flexion and then extension. This additional time at the peak of the jump could be useful to adjust to ball trajectory and to decide where, when and how to hit the ball.
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Affiliation(s)
- Dhruv Gupta
- Department of Kinesiology and Health Education, The University of Texas at Austin, Austin, TX, USA.
| | - Jody L Jensen
- Department of Kinesiology and Health Education, The University of Texas at Austin, Austin, TX, USA.
| | - Lawrence D Abraham
- Department of Kinesiology and Health Education, The University of Texas at Austin, Austin, TX, USA.
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21
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Ramirez-Campillo R, García-de-Alcaraz A, Chaabene H, Moran J, Negra Y, Granacher U. Effects of Plyometric Jump Training on Physical Fitness in Amateur and Professional Volleyball: A Meta-Analysis. Front Physiol 2021; 12:636140. [PMID: 33716784 PMCID: PMC7952872 DOI: 10.3389/fphys.2021.636140] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 01/21/2021] [Indexed: 12/13/2022] Open
Abstract
We aimed to examine the effects of plyometric jump training (PJT) on measures of physical fitness in amateur and professional volleyball players. A systematic electronic literature search was carried out in the databases PubMed, MEDLINE, Web of Science, and SCOPUS. Controlled studies including pre-to-post intervention tests of physical fitness and involving healthy volleyball players regardless of age and sex were considered. A random-effects model was used to calculate effect sizes (ES) between intervention and control groups. Moderator analyses considered programme duration, training frequency, total number of training sessions and jumps, participants' sex, age, and expertise level. The Physiotherapy Evidence Database scale was used to assess the methodological quality of the included studies. Eighteen moderate-to-high quality (median of 5 PEDro points) studies were eligible, comprising a total of 746 athletes. None of the included studies reported injuries related to the PJT intervention. The main findings showed small-to-moderate effects (p < 0.05) of PJT on linear sprint speed (ES = 0.70), squat jump (ES = 0.56), countermovement jump (CMJ) (ES = 0.80), CMJ with arm swing (ES = 0.63), drop jump (ES = 0.81), and spike jump height (ES = 0.84). Sub-analyses of moderator factors included 48 data sets. Only age had a significant effect on CMJ performance. Participants aged ≥16 years achieved greater improvements in CMJ performance compared to <16 years old (ES = 1.28 and 0.38, respectively; p = 0.022). No significant differences (p = 0.422) were identified between amateur (ES = 0.62) and professional volleyball players (ES = 1.01). In conclusion, PJT seems safe and is effective in improving measures of physical fitness in amateur and professional volleyball players, considering studies performed in both male and female.
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Affiliation(s)
- Rodrigo Ramirez-Campillo
- Human Performance Laboratory, Department of Physical Activity Sciences, Universidad de Los Lagos, Osorno, Chile.,Facultad de Ciencias, Centro de Investigación en Fisiología del Ejercicio, Universidad Mayor, Santiago, Chile
| | - Antonio García-de-Alcaraz
- Faculty of Educational Sciences, University of Almeria, Almería, Spain.,LFE Research Group, Universidad Politécnica de Madrid, Madrid, Spain
| | - Helmi Chaabene
- Division of Training and Movement Sciences, University of Potsdam, Potsdam, Germany.,High Institute of Sports and Physical Education, Kef, University of Jendouba, Jendouba, Tunisia
| | - Jason Moran
- School of Sport, Rehabilitation and Exercise Sciences, University of Essex, Colchester, United Kingdom
| | - Yassine Negra
- Research Unit (UR17JS01) ≪Sport Performance, Health & Society≫, Higher Institute of Sport and Physical Education of Ksar Saîd, University of "La Manouba", Manouba, Tunisia
| | - Urs Granacher
- Division of Training and Movement Sciences, University of Potsdam, Potsdam, Germany
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22
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Sarvestan J, Svoboda Z, Alaei F, Mulloy F. Analysis of Whole-Body Coordination Patterning in Successful and Faulty Spikes Using Self-Organising Map-Based Cluster Analysis: A Secondary Analysis. SENSORS 2021; 21:s21041345. [PMID: 33672802 PMCID: PMC7917820 DOI: 10.3390/s21041345] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 02/10/2021] [Accepted: 02/11/2021] [Indexed: 11/16/2022]
Abstract
This study investigated the whole-body coordination patterning in successful and faulty spikes using self-organising map-based cluster analysis. Ten young, elite volleyball players (aged 15.5 ± 0.7 years) performed 60 volleyball spikes in a real-game environment. Adopting the cluster analysis, based on a self-organising map, whole-body coordination patterning was explored between successful and faulty spikes of individual players. The self-organising maps (SOMs) portrayed whole body, lower and upper limb coordination dissimilarities during the jump phase and the ball impact phases between the successful and faulty spikes. The cluster analysis illustrated that the whole body, upper limb and lower limb coordination patterning of each individual’s successful spikes were similar to their faulty spikes. Range of motion patterning also demonstrated no differences in kinematics between spike outcomes. Further, the upper limb angular velocity patterning of the players’ successful/faulty spikes were similar. The SPM analysis portrayed significant differences between the normalized upper limb angular velocities from 35% to 45% and from 76% to 100% of the spike movement. Although the lower limb angular velocities are vital for achieving higher jumps in volleyball spikes, the results of this study portrayed that the upper limb angular velocities distinguish the differences between successful and faulty spikes among the attackers. This confirms the fact that volleyball coaches should shift their focus toward the upper limb velocity and coordination training for higher success rates in spiking for volleyball attackers.
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Affiliation(s)
- Javad Sarvestan
- Department of Natural Sciences in Kinanthropology, Faculty of Physical Culture, Palacky University Olomouc, 779 00 Olomouc, Czech Republic; (Z.S.); (F.A.)
- Correspondence: ; Tel.: +420-7768-97540
| | - Zdeněk Svoboda
- Department of Natural Sciences in Kinanthropology, Faculty of Physical Culture, Palacky University Olomouc, 779 00 Olomouc, Czech Republic; (Z.S.); (F.A.)
| | - Fatemeh Alaei
- Department of Natural Sciences in Kinanthropology, Faculty of Physical Culture, Palacky University Olomouc, 779 00 Olomouc, Czech Republic; (Z.S.); (F.A.)
| | - Franky Mulloy
- School of Sport and Exercise Science, University of Lincoln, Lincolnshire LN6 7TS, UK;
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Panoutsakopoulos V, Kotzamanidou MC, Papaiakovou G, Kollias IA. The Ankle Joint Range of Motion and Its Effect on Squat Jump Performance with and without Arm Swing in Adolescent Female Volleyball Players. J Funct Morphol Kinesiol 2021; 6:jfmk6010014. [PMID: 33546291 PMCID: PMC7931004 DOI: 10.3390/jfmk6010014] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Revised: 01/30/2021] [Accepted: 01/31/2021] [Indexed: 11/16/2022] Open
Abstract
A flexible ankle joint is suggested to be a contributing factor for vertical squat jump (SQJ) performance. The purpose of the study was to investigate the effect of the active (ACT) and passive (PAS) ankle joint range of motion (ROM) on SQJ performed by adolescent female volleyball players. ACT and PAS ankle ROM at knee extension angles of 90, 140, and 180 degrees (180 degrees: full extension) were measured with a video analysis method for 35 female post-pubertal volleyball players (16.3 ± 1.1 yrs, 1.80 ± 0.04 m, 68.8 ± 6.8 kg). Additionally, the players fulfilling previously recommended criteria were assigned to the flexible (n = 10) and inflexible (n = 8) groups and executed SQJ with and without an arm swing on a force-plate. Results of the 2 × 2 × 3 MANOVA revealed a significant (p < 0.05) flexibility type and knee angle effect, as ankle ROM was larger in PAS compared to ACT and as the knee joint progressed from 90 to 180 degrees extension. The 2 × 2 ANOVA revealed a significant (p < 0.05) group effect, as flexible players jumped higher in the arm swing SQJ, along with a significant arm swing effect on key SQJ kinetic parameters. In conclusion, a more flexible ankle joint result in improved SQJ performance. Therefore, ankle flexibility training should be implemented in youth volleyball players.
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Affiliation(s)
- Vassilios Panoutsakopoulos
- Biomechanics Laboratory, Department of Physical Education and Sports Sciences at Thessaloniki, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (G.P.); (I.A.K.)
- Correspondence:
| | - Mariana C. Kotzamanidou
- Faculty of Health Sciences, Metropolitan College of Thessaloniki, 54624 Thessaloniki, Greece;
| | - Georgios Papaiakovou
- Biomechanics Laboratory, Department of Physical Education and Sports Sciences at Thessaloniki, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (G.P.); (I.A.K.)
| | - Iraklis A. Kollias
- Biomechanics Laboratory, Department of Physical Education and Sports Sciences at Thessaloniki, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (G.P.); (I.A.K.)
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24
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Ben Ayed K, Ben Saad H, Ali Hammami M, Latiri I. Relationships of the 5-Jump Test (5JT) Performance of Youth Players With Volleyball Specific' Laboratory Tests for Explosive Power. Am J Mens Health 2020; 14:1557988320977686. [PMID: 33300390 PMCID: PMC7734521 DOI: 10.1177/1557988320977686] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Volleyball involves movements with and/or without horizontal approaches (i.e., spike jumps, jump setting, blocking). The 5-jump test (5JT) was suggested to assess lower limb explosive power of athletes competing in some disciplines (e.g., soccer, judo, running). It appears that no previous study has investigated the 5JT performance components in volleyball players. This study aimed to test the relationship between 5JT performance and two specific laboratory tests for explosive power (i.e., countermovement jump [CMJ] and squat jump [SJ]). Forty volleyball players (boys, mean age: 12.4 ± 0.8 years) were tested for 5JT, CMJ, and SJ tests. 5JT performance was expressed in absolute terms (m), and relative to leg length (5JTLL) and body mass (5JTBM). The SJ and CMJ tests were evaluated using the optojump photoelectric cells and the following data were collected: peak power (Pp) of jump (W, W.kg-0.67), peak jumping force (Fpeak, N), peak jumping velocity (Vpeak, m/s), peak heights of CMJ and SJ (CMJH and SJH, respectively, cm). Only significant (p < .05) Pearson product-moment correlations (r) > 0.30 were considered. 5JT performance was significantly correlated with SJ, Vpeak (r = 0.90), SJH (r = 0.88), Pp [W.kg-0.67 (r = 0.86), W (r = 0.72)], Fpeak (r = 0.45); and CMJ, Vpeak (r = 0.82), CMJH (r = 0.80), Pp [W.kg-0.67 (r = 0.89), W (r = 0.85)], Fpeak (r = 0.73). 5JTLL values were significantly related to SJ, Pp [W (r = 0.81), W.kg-0.67 (r = 0.74)], Vpeak (r = 0.82); and CMJ, Pp [W (r = 0.73), W.kg-0.67 (r = 0.84)], Vpeak (r = 0.75), Fpeak (r = 0.67)]. 5JTBM values were significantly related to SJ, Pp (W, r = −0.43). To conclude, in youth volleyball players, the 5JT may be viewed as an explosive strength diagnostic instrument under field circumstances.
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Affiliation(s)
- Karim Ben Ayed
- High Institute of Sport and Physical Education. Kef. University of Jendouba, El Kef, Tunisia.,Sport Sciences, Health and Movement (2SHM) Laboratory, Tunisia
| | - Helmi Ben Saad
- Heart Failure (LR12SP09) Research Laboratory, Farhat Hached University Hospital, Sousse, Tunisia.,Université de Sousse, Faculté de Médicine de Sousse, Laboratoire de Physiologie, Sousse, Tunisie.,Department of Physiology and Functional Exploration, Farhat Hached University Hospital, Sousse, Tunisia
| | - Mohamed Ali Hammami
- High Institute of Sport and Physical Education. Kef. University of Jendouba, El Kef, Tunisia.,Sport Sciences, Health and Movement (2SHM) Laboratory, Tunisia
| | - Imed Latiri
- Heart Failure (LR12SP09) Research Laboratory, Farhat Hached University Hospital, Sousse, Tunisia.,Université de Sousse, Faculté de Médicine de Sousse, Laboratoire de Physiologie, Sousse, Tunisie
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25
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Sebastia-Amat S, Ardigò LP, Jimenez-Olmedo JM, Pueo B, Penichet-Tomas A. The Effect of Balance and Sand Training on Postural Control in Elite Beach Volleyball Players. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E8981. [PMID: 33276623 PMCID: PMC7730922 DOI: 10.3390/ijerph17238981] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 11/29/2020] [Accepted: 12/01/2020] [Indexed: 11/27/2022]
Abstract
The aim of this work was to evaluate the effectiveness of a 12-week-long balance training program on the postural control of elite male beach volleyball players and the effect on balance when swapping to specific sports training in the sand in the following 12 weeks. Six elite players were tested before and after the balance training program and also 12 weeks after the balance training had finished. To this aim, a pressure platform was used to collect the following center of pressure parameters: path length, speed, mean position, and root-mean-square amplitude in the medial-lateral and anteroposterior planes. Romberg quotients for the center of pressure parameters were also calculated. The results of the present study showed better static postural control after specific balance training: smaller path length and speed under open eyes condition in dominant (p = 0.015; p = 0.009, respectively) and non-dominant monopedal stances (p = 0.005; p = 0.004, respectively). Contrastingly, 12 weeks after the balance training program, the path length and speed values under open eyes condition in bipedal stance increased significantly (p = 0.045; p = 0.004, respectively) for sand training. According to our results, balance training is effective to achieve positive balance test scores. It is speculated, and yet to be proven, that sand training could be effective to improve dynamic and open eyes postural control during beach volleyball practice. In beach volleyball players, a balance training program is effective to develop static balance but the effect of ecological sand training on dynamic performance deserves specific investigation.
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Affiliation(s)
- Sergio Sebastia-Amat
- Physical Education and Sport Sciences, Faculty of Education, University of Alicante, 03690 Alicante, Spain; (S.S.-A.); (J.M.J.-O.); (A.P.-T.)
| | - Luca Paolo Ardigò
- Department of Neurosciences, Biomedicine and Movement Sciences, School of Exercise and Sport Science, University of Verona, 37131 Verona, Italy;
| | - Jose Manuel Jimenez-Olmedo
- Physical Education and Sport Sciences, Faculty of Education, University of Alicante, 03690 Alicante, Spain; (S.S.-A.); (J.M.J.-O.); (A.P.-T.)
| | - Basilio Pueo
- Physical Education and Sport Sciences, Faculty of Education, University of Alicante, 03690 Alicante, Spain; (S.S.-A.); (J.M.J.-O.); (A.P.-T.)
| | - Alfonso Penichet-Tomas
- Physical Education and Sport Sciences, Faculty of Education, University of Alicante, 03690 Alicante, Spain; (S.S.-A.); (J.M.J.-O.); (A.P.-T.)
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Force-time curve variables of countermovement jump as predictors of volleyball spike jump height. GERMAN JOURNAL OF EXERCISE AND SPORT RESEARCH 2020. [DOI: 10.1007/s12662-020-00676-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Sarvestan J, Svoboda Z, Baeyens JP, Serrien B. Whole body coordination patterning in volleyball spikes under various task constraints: exploratory cluster analysis based on self-organising maps. Sports Biomech 2020:1-15. [PMID: 32744139 DOI: 10.1080/14763141.2020.1788132] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Task and environment-related constraints can influence spike performance in volleyball players. This study was designated to investigate the impact of awareness of the presence or absence of a defensive block by the opponents on the performance and coordination pattern of spikes in elite volleyball attackers. Simulating a real-game scenario, 10 elite youth attackers (aged 15.5 ± 0.7 years) executed six spikes each with prior notification about the presence/absence of defences and six spikes without any notification. In each condition, they were blocked by two opponents in three trials. The coordination patterning of the attackers was explored using cluster analysis based on a Self-Organising Map (SOM). The SOMs and the cluster analysis showed that the coordination pattern of the spike execution was very individual-specific; however, in the third layer of the cluster analysis, it was revealed that the movement pattern of spike execution had similarities in the scenario wherein the players had prior awareness of the defences. Providing the attackers with information on the opponents' condition or performance could shift the attackers' focus from a game-oriented condition to the rivals' behaviour, which consequently resulted in deterioration of their spike performance.
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Affiliation(s)
- Javad Sarvestan
- Department of Natural Sciences in Kinanthropology. Faculty of Physical Culture, Palacky University Olomouc, Olomouc, Czech Republic
| | - Zdenek Svoboda
- Department of Natural Sciences in Kinanthropology. Faculty of Physical Culture, Palacky University Olomouc, Olomouc, Czech Republic
| | - Jean-Pierre Baeyens
- Experimental Anatomy Research Group, Faculty of Physical Education and Physiotherapy, Free University of Brussels, Brussel, Belgium.,Department of Electronics, Faculty of Applied Engineering, University of Antwerp, Antwerp, Belgium.,Thim Van Der Laan University College Physiotherapy, Landquart, Switzerland
| | - Ben Serrien
- Experimental Anatomy Research Group, Faculty of Physical Education and Physiotherapy, Free University of Brussels, Brussel, Belgium
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Fuchs PX, Fusco A, Bell JW, von Duvillard SP, Cortis C, Wagner H. Effect of Differential Training on Female Volleyball Spike-Jump Technique and Performance. Int J Sports Physiol Perform 2020; 15:1019-1025. [PMID: 32534447 DOI: 10.1123/ijspp.2019-0488] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 09/27/2019] [Accepted: 10/29/2019] [Indexed: 11/18/2022]
Abstract
PURPOSE To determine the effect of in-season differential training on volleyball spike-jump technique and performance in elite-level female players. METHODS During the season, spike jumps of 12 elite female players (Austrian Volleyball League Women) were recorded by 13 Qualisys Oqus cameras (250 Hz) and an AMTI force plate (1000 Hz). First measurement was made at the beginning of the investigation. Two identical measurements were repeated after a first and a second interval. The first interval served as control phase. The second interval was comparable in length and regular program but included differential training (6 wk, 8 sessions of 15-20 min) as a modified warm-up. It addressed specific performance determinants. Analyses of variances were calculated for the 3 measurements and for the development during control and intervention phase. RESULTS Initial jump height (0.44 [0.09] m) changed by -4.5% during the control phase and +11.9% during the intervention (P < .001, ηp2=.70). All approach variables, arm backswing, and velocity-conversion strategy improved compared with the control phase (Δ%: 6.1-51.2%, P < .05, ηp2=.40-.80). Joint angles, countermovement depth, maximal angular velocities, and torso incline were not affected (Δ%: -2.9-9.1%, P = .066-.969, ηp2=.00-.27). CONCLUSIONS In-season differential training led to technical adaptations and increased spike-jump height in elite female players. The differential training program allowed players to experience a range of adaptability and to adjust toward an individual optimum in technical components of performance determinants. Coaches are encouraged to apply technical differential training to elite athletes and to target biomechanical performance factors specifically.
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Sarvestan J, Ataabadi PA, Svoboda Z, Kovačikova Z, Needle AR. The effect of ankle Kinesio™ taping on ankle joint biomechanics during unilateral balance status among collegiate athletes with chronic ankle sprain. Phys Ther Sport 2020; 45:161-167. [PMID: 32781269 DOI: 10.1016/j.ptsp.2020.06.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 06/08/2020] [Accepted: 06/09/2020] [Indexed: 12/22/2022]
Abstract
OBJECTIVES To determine the effects of ankle Kinesio-taping (KT) on postural sway, lower limb ROM, and muscle activity during a unilateral balance tasks. DESIGN Case control study design. SETTING Data were collected at the human movement analysis laboratory. PARTICIPANTS 30 collegiate athletes with chronic ankle sprain (11 females and 19 males, 23.91 ± 2.58 years). MAIN OUTCOME MEASURE Hip, knee and ankle joints ranges of motion (ROMs); postural sway area and velocities in both anteroposterior and mediolateral directions; and muscular activity amplitudes (% peak) of lateral and medial gastrocnemius, tibialis anterior and peroneus longus in a 20s single leg balance test in two non-taped (control) and KT (intervention) conditions. RESULTS Significant decrease observed in ankle lateral ROM (p = 0.048, d = 0.52), mediolateral postural sway velocity (p = 0.029, d = 1.25), and peroneus longus activity amplitudes (p = 0.042, d = 0.55) after KT application. CONCLUSION Acute application of KT among athletes with chronic ankle instability could provide lateral mechanical support to the ankle, potentially decreasing the velocity of frontal plane sway, and decreasing the magnitude of muscle activation. These data suggest that KT may be beneficial for improving static joint stability among individuals with chronic ankle sprain, and thus could be considered an option to allow safe return-to-activity.
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Affiliation(s)
- Javad Sarvestan
- Department of Kinanthropology, Faculty of Physical Culture, Palacky University Olomouc, Olomouc, Czech Republic.
| | - Peyman Aghaie Ataabadi
- Department of Biomechanics and Sports Injuries, Faculty of Physical Education and Sports Sciences, Kharazmi University, Tehran, Iran
| | - Zdeněk Svoboda
- Department of Kinanthropology, Faculty of Physical Culture, Palacky University Olomouc, Olomouc, Czech Republic
| | - Zuzana Kovačikova
- Department of Kinanthropology, Faculty of Physical Culture, Palacky University Olomouc, Olomouc, Czech Republic
| | - Alan R Needle
- Department of Health and Exercise Science, Appalachian State University, ASU Box 32071, Boone, NC, 28608, USA
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Sarvestan J, Svoboda Z, Linduška P. Kinematic differences between successful and faulty spikes in young volleyball players. J Sports Sci 2020; 38:2314-2320. [DOI: 10.1080/02640414.2020.1782008] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Javad Sarvestan
- Department of Natural Sciences in Kinanthropology, Faculty of Physical Culture, Palacky University Olomouc, Olomouc, Czech Republic
| | - Zdeněk Svoboda
- Department of Natural Sciences in Kinanthropology, Faculty of Physical Culture, Palacky University Olomouc, Olomouc, Czech Republic
| | - Petr Linduška
- Department of Natural Sciences in Kinanthropology, Faculty of Physical Culture, Palacky University Olomouc, Olomouc, Czech Republic
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Kinematic and Kinetic Analyses of the Vertical Jump with and without Header as Performed by Para-Footballers with Cerebral Palsy. Sports (Basel) 2019; 7:sports7090209. [PMID: 31547248 PMCID: PMC6784039 DOI: 10.3390/sports7090209] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 09/08/2019] [Accepted: 09/10/2019] [Indexed: 11/17/2022] Open
Abstract
Vertical jump is a relevant variable in the classification of football for individuals with cerebral palsy. In this regard, the literature is limited. There are no studies assessing vertical jumping ability through kinematic methods and in more specific football game situations, such as jumps with a header. The goals of the present study were to assess how the modification of jumping conditions (without and with a header) might affect the kinematic and kinetic parameters of counter movement jumping, and whether the functional profiles of the players constrain their ability to jump vertically, both with and without a header. Thirteen male football players with cerebral palsy (27.7 ± 5.7 years old) and different functional profiles participated in this study. All the players performed ten counter movement jumps with arms swing, five headed a ball and five did not. The kinematic parameters were recorded with a 3D motion analysis system, and the kinetic parameters using a force platform. Significantly smaller angles of the hips (dg = 0.75-0.79; p < 0.01) and knees (dg = 1.04-1.15; p < 0.05), as well as greater ankle extension (dg = -0.71; p < 0.05), were observed during the eccentric phase of the jumps with a header. There were also asymmetries between legs in ankle extension during jumps with a header (dg = -1.06; p < 0.05), which could be an adjustment element for the precision of the jumps (i.e., header action). It should be mentioned that the jumping pattern could be partially affected by the functional profile of football players with cerebral palsy.
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Fuchs PX, Menzel HJK, Guidotti F, Bell J, von Duvillard SP, Wagner H. Spike jump biomechanics in male versus female elite volleyball players. J Sports Sci 2019; 37:2411-2419. [PMID: 31280702 DOI: 10.1080/02640414.2019.1639437] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
There are well-known biological differences between women and men, especially in technical-coordinative variations that contribute to sex differences in performance of complex movements like the most important offensive action in volleyball, the spike jump. The aim of this study was to investigate sex-dependent performance and biomechanical characteristics in the volleyball spike jump. Thirty female and male sub-elite volleyball players were analysed while striking a stationary ball with maximal spike jump height. Twelve MX13 Vicon cameras with a cluster marker set, two AMTI force plates, surface EMG, and a Full-Body 3D model in Visual3D were used. Main findings include sex differences (P< .05) in jump height (pη2 = .73), approach [speed (pη2 = .61), step length], transition strategy [plant angle, neuromuscular activation (pη2 = .91), horizontal force maxima and impulses], acceleration distances [centre of mass displacement (pη2 = .21), minimal knee and hip angles], use of torso and arms [incline, angular velocity (pη2 = .23)]. Correlations support that the results cannot be explained fully by strength and power differences between sexes but represent the product of technical-coordinative variations. Their relevance is acknowledged for both sexes and numerous performance determinants displayed sex differences. The integration of such attributes into sex-specific training seems promising but its effect requires further investigation.
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Affiliation(s)
- Philip X Fuchs
- Department of Sport Science and Kinesiology, University of Salzburg , Salzburg , Austria.,Department of Human Sciences, Society and Health, University of Cassino and Lazio Meridionale , Cassino , Italy
| | | | - Flavia Guidotti
- Department of Movement, Human and Health Sciences, University of Rome Foro Italico , Rome , Italy
| | - Jeffrey Bell
- Science Department, Southwest Minnesota State University , Marshall , MN , USA
| | - Serge P von Duvillard
- Department of Sport Science and Kinesiology, University of Salzburg , Salzburg , Austria
| | - Herbert Wagner
- Department of Sport Science and Kinesiology, University of Salzburg , Salzburg , Austria
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Movement characteristics of volleyball spike jump performance in females. J Sci Med Sport 2019; 22:833-837. [DOI: 10.1016/j.jsams.2019.01.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 12/10/2018] [Accepted: 01/01/2019] [Indexed: 11/29/2022]
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Wagner H, Sperl B, Bell JW, von Duvillard SP. Testing Specific Physical Performance in Male Team Handball Players and the Relationship to General Tests in Team Sports. J Strength Cond Res 2019; 33:1056-1064. [DOI: 10.1519/jsc.0000000000003026] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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35
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Wagner H, Fuchs P, Fusco A, Fuchs P, Bell JW, von Duvillard SP. Physical Performance in Elite Male and Female Team-Handball Players. Int J Sports Physiol Perform 2019; 14:60-67. [PMID: 29893597 DOI: 10.1123/ijspp.2018-0014] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 04/30/2018] [Accepted: 05/27/2018] [Indexed: 11/18/2022]
Abstract
PURPOSE Biological differences between men and women are well known; however, literature addressing knowledge about the influence of sex on specific and general performance in team handball is almost nonexistent. Consequently, the aim of the study was to assess and compare specific and general physical performance in male and female elite team-handball players, to determine if the differences are consequential for general compared with specific physical performance characteristics and the relationship between general and specific physical performance. METHODS Twelve male and 10 female elite team-handball players performed a game-based performance test, upper- and lower-body strength and power tests, a sprinting test, and an incremental treadmill running test. RESULTS Significant differences (P < .05) between male and female players were found for peak oxygen uptake and total running time during the treadmill test, 30-m sprinting time, leg-extension strength, trunk- and shoulder-rotation torque, and countermovement-jump height, as well as offense and defense time, ball velocity, and jump height in the game-based performance test. An interaction (sex × test) was found for time and oxygen uptake, and except shoulder-rotation torque and ball velocity in women, the authors found only a low relationship between specific and general physical performance. CONCLUSION The results of the study revealed that male players are heavier, taller, faster, and stronger; jump higher; and have better aerobic performance. However, female players performed relatively better in the team-handball-specific tests than in the general tests. The findings also suggest that female players should focus more on strength training.
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36
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Ahmed MA, Hafez (Waly) EA, Abdelazeim FH, Ghani HA. Severity of equinus gait deviation on centre of mass trajectory in children with bilateral spastic cerebral palsy. INTERNATIONAL JOURNAL OF THERAPY AND REHABILITATION 2018. [DOI: 10.12968/ijtr.2018.25.9.453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Background/Aims: To study the impact of severity of equinus gait on the vertical displacement of centre of mass and spatiotemporal parameters in children with bilateral spastic cerebral palsy. Methods: A total of 23 ambulant children with bilateral spastic cerebral palsy who had equinus gait and 16 typically developing children (controls) participated in this study. Children with cerebral palsy were categorised according to severity of equinus into two subgroups: children with peak dorsiflexion above 0° (positive group, n=11) and children with peak dorsiflexion below 0° (negative group, n=12). Three-dimensional gait analysis was conducted to measure the vertical displacement of centre of mass and spatiotemporal parameters of all participants. Results: There was a significantly greater increase in vertical displacement of centre of mass in equinus gait groups compared to the control group (P=0.007 for the positive group and P=0.011 for the negative group). Speed and step length were significantly reduced in the positive and negative groups compared to the control group, while cadence was non-significantly increased. No significant difference was found between the positive group and negative groups in any variables tested. Conclusions: Vertical centre of mass was significantly more displaced in children with bilateral spastic cerebral palsy with equinus compared to body mass index-matched typically developing children, regardless of the severity of equinus. The smooth transition of centre of mass and energy consumption might not be closely related to the degree of equinus.
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Affiliation(s)
- Mai A Ahmed
- Assistant lecturer, Physical Therapy Department for Woman and Child Health, Beni-Suef University, Beni-Suef, Egypt
| | - Ehab A Hafez (Waly)
- Lecturer, Physical Therapy Department for Paediatrics, Cairo University, Giza, Egypt
| | - Faten H Abdelazeim
- Professor, Physical Therapy Department for Paediatrics, Cairo University, Giza, Egypt
| | - Hisham A Ghani
- Professor of Paediatric Orthopaedics, Cairo University, Giza, Egypt
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Wagner H, Gierlinger M, Adzamija N, Ajayi S, Bacharach DW, von Duvillard SP. Specific Physical Training in Elite Male Team Handball. J Strength Cond Res 2018; 31:3083-3093. [PMID: 28968288 DOI: 10.1519/jsc.0000000000002094] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Wagner, H, Gierlinger, M, Adzamija, N, Ajayi, S, Bacharach, DW, and von Duvillard, SP. Specific physical training in elite male team handball. J Strength Cond Res 31(11): 3083-3093, 2017-Specific physical training in elite team handball is essential for optimal player's performance; however, scientific knowledge is generally based on temporary training studies with subelite athletes. Therefore, the aim of the study was to analyze the effects of specific physical training in an elite male handball team over the entire season. Twelve players of a male handball team from the First Austrian Handball League conducted a 1-year specific physical training program in addition to their normal (team handball techniques and tactics) weekly training. Performance was measured with 5 general and 4 specific tests as well as game statistics during competition. Repeated measures analysis of variances and paired sample t-test were used to analyze differences in performance during training. We found a significant increase in oxygen uptake, offense time, defense time, fast break time, and jump height in the specific tests. Game performance statistics revealed a lower throwing percentage in the hosting team (59%) compared with the rival teams (63%). Our results indicated that specific endurance and agility are an acceptable modality in elite male team handball. However, performance in competition is strongly influenced by specific techniques and tactics. We recommend to strength and conditioning professionals that they tailor strength and power training, coordination and endurance as specific as possible, using free weights, agility exercises that include change in direction and jumps as well as short (10-15 seconds) high-intensity intervals.
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Affiliation(s)
- Herbert Wagner
- 1Department of Sport Science and Kinesiology, University of Salzburg, Salzburg, Austria; 2Team Handball Club HC Linz AG, Linz, Austria; and 3Department of Kinesiology, Human Performance Laboratory, St. Cloud State University, St. Cloud, Minnesota
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Ikeda Y, Sasaki Y, Hamano R. Factors Influencing Spike Jump Height in Female College Volleyball Players. J Strength Cond Res 2017; 32:267-273. [PMID: 28902117 DOI: 10.1519/jsc.0000000000002191] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Ikeda, Y, Sasaki, Y, and Hamano, R. Factors influencing spike jump height in female college volleyball players. J Strength Cond Res 32(1): 267-273, 2018-The purpose of this study was to examine factors influencing spike jump (SPJ) performance by female competitive volleyball players through comparisons of the kinematic data of SPJ with those of the standing long jump (SLJ) and vertical jump (VJ). Seventeen female competitive volleyball players were asked to perform SPJ, SLJ, and VJ. Motion data of SPJ including the approach phase were recorded. Regarding SLJ and VJ, jumping motion and ground reaction force were recorded during each performance. The results obtained showed that SPJ height correlated with vertical velocity at take-off, horizontal velocity at third step contact, and the deceleration of horizontal velocity from third step contact to take-off. Regarding the relationship among SPJ, SLJ, and VJ, the relationship between SPJ and SLJ was stronger than that with VJ. The contributions of the hip, knee, and ankle muscles to the propulsive phase of SLJ were 39.7%, 21.1%, and 39.2%, respectively, whereas their contributions to VJ were 36.2%, 30.2%, and 33.6%, respectively. The vertical velocity of SPJ at take-off correlated with hip work and ankle peak power in SLJ and knee peak power in VJ. These results suggest the importance of enhancing horizontal and vertical jumping abilities separately to improve the height of SPJ because the primary generator for power production seems to depend on jump direction.
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Affiliation(s)
- Yusuke Ikeda
- Department of Health and Sports, Niigata University of Health and Welfare, Niigata, Japan
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Zahálka F, Malý T, Malá L, Ejem M, Zawartka M. Kinematic Analysis of Volleyball Attack in the Net Center with Various Types of Take-Off. J Hum Kinet 2017; 58:261-271. [PMID: 28828096 PMCID: PMC5548173 DOI: 10.1515/hukin-2017-0115] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The aim of the study was to describe and compare kinematics in two types of execution of attack hit, the goofy approach and regular approach. The research group consisted of players from the Czech Republic’s top league (n = 12, age 28.0 ± 4.3 years, body height 196.6 ± 5.6 cm, body mass 89.7 ± 6.7 kg) divided into two groups according to the individual type of approach in the attack. Analysis of movement was performed by 3D kinematics video analysis, space coordinates were calculated by the DLT (Direct Linear Transformation) method together with interpretation software TEMA Bio 2.3 (Image Systems AB, Sweden). The players started their run-up from a distance of about 4 – 4.5 m from the net with similar maximal vertical velocity (2.91 – 2.96 m⋅s-1). The trajectory of players with goofy approach seemed to be convenient for the rotation of shoulders and hips in the moment of ball contact. Differences between both groups were observed. Players with a goofy approach had a longer flight phase compared to regularly approaching players.
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Affiliation(s)
- František Zahálka
- Faculty of Physical Education and Sports, Sports Research Centre, Charles University, Prague, Czech Republic
| | - Tomáš Malý
- Faculty of Physical Education and Sports, Sports Research Centre, Charles University, Prague, Czech Republic
| | - Lucia Malá
- Faculty of Physical Education and Sports, Sports Research Centre, Charles University, Prague, Czech Republic
| | - Miloslav Ejem
- Faculty of Physical Education and Sports, Sports Research Centre, Charles University, Prague, Czech Republic
| | - Marek Zawartka
- Faculty of Internal Security, J. Kukuczka Academy of Physical Education in Katowice. Katowice, Poland
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Park JY, Kim KH, Kuh SU, Chin DK, Kim KS, Cho YE. Joint kinematics of surgeons during lumbar pedicle screw placement. Int J Med Robot 2015; 12:701-709. [PMID: 26443712 DOI: 10.1002/rcs.1708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Revised: 06/25/2015] [Accepted: 08/21/2015] [Indexed: 11/09/2022]
Abstract
BACKGROUND A surgical robot for spine surgery has recently been developed. The objective is to assess the joint kinematics of the surgeon during spine surgery. METHODS We enrolled 18 spine surgeons, who each performed pedicle screw placement, and used an optoelectronic motion analysis system. Using three-dimensional (3D) motion images, distance changes in five joints and angle changes in six joints were calculated during surgery. RESULTS Distance fluctuations increased gradually from the proximal to the distal joint. Angle fluctuations were largest at the distal point but did not gradually increase, and the elbow showed the second largest fluctuation. Changes along the X axis were larger than those of the Y and Z axes. CONCLUSION The distances gradually increased from proximal portions of the body to the hand. In angle changes, the elbow was most dynamic during pedicle screw placement. The surgeons' whole joints carry out a harmonic role during lumbar pedicle screw placement. Copyright © 2015 John Wiley & Sons, Ltd.
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Affiliation(s)
- Jeong-Yoon Park
- Department of Neurosurgery, Gangnam Severance Hospital, Spine and Spinal Cord Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - Kyung-Hyun Kim
- Department of Neurosurgery, Gangnam Severance Hospital, Spine and Spinal Cord Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - Sung-Uk Kuh
- Department of Neurosurgery, Gangnam Severance Hospital, Spine and Spinal Cord Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - Dong-Kyu Chin
- Department of Neurosurgery, Gangnam Severance Hospital, Spine and Spinal Cord Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - Keun-Su Kim
- Department of Neurosurgery, Gangnam Severance Hospital, Spine and Spinal Cord Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - Yong-Eun Cho
- Department of Neurosurgery, Gangnam Severance Hospital, Spine and Spinal Cord Institute, Yonsei University College of Medicine, Seoul, South Korea
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Sattler T, Sekulic D, Esco MR, Mahmutovic I, Hadzic V. Analysis of the association between isokinetic knee strength with offensive and defensive jumping capacity in high-level female volleyball athletes. J Sci Med Sport 2015; 18:613-8. [DOI: 10.1016/j.jsams.2014.08.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Revised: 07/31/2014] [Accepted: 08/02/2014] [Indexed: 10/24/2022]
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Effect of Leg Dominance on The Center-of-Mass Kinematics During an Inside-of-the-Foot Kick in Amateur Soccer Players. J Hum Kinet 2014; 42:51-61. [PMID: 25414739 PMCID: PMC4234770 DOI: 10.2478/hukin-2014-0060] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Soccer kicking kinematics has received wide interest in literature. However, while the instep-kick has been broadly studied, only few researchers investigated the inside-of-the-foot kick, which is one of the most frequently performed techniques during games. In particular, little knowledge is available about differences in kinematics when kicking with the preferred and non-preferred leg. A motion analysis system recorded the three-dimensional coordinates of reflective markers placed upon the body of nine amateur soccer players (23.0 ± 2.1 years, BMI 22.2 ± 2.6 kg/m2), who performed 30 pass-kicks each, 15 with the preferred and 15 with the non-preferred leg. We investigated skill kinematics while maintaining a perspective on the complete picture of movement, looking for laterality related differences. The main focus was laid on: anatomical angles, contribution of upper limbs in kick biomechanics, kinematics of the body Center of Mass (CoM), which describes the whole body movement and is related to balance and stability. When kicking with the preferred leg, CoM displacement during the ground-support phase was 13% higher (p<0.001), normalized CoM height was 1.3% lower (p<0.001) and CoM velocity 10% higher (p<0.01); foot and shank velocities were about 5% higher (p<0.01); arms were more abducted (p<0.01); shoulders were rotated more towards the target (p<0.01, 6° mean orientation difference). We concluded that differences in motor control between preferred and non-preferred leg kicks exist, particularly in the movement velocity and upper body kinematics. Coaches can use these results to provide effective instructions to players in the learning process, moving their focus on kicking speed and upper body behavior.
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Mapelli A, Zago M, Fusini L, Galante D, Colombo A, Sforza C. Validation of a protocol for the estimation of three-dimensional body center of mass kinematics in sport. Gait Posture 2013; 39:460-5. [PMID: 24054347 DOI: 10.1016/j.gaitpost.2013.08.025] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2013] [Revised: 07/22/2013] [Accepted: 08/25/2013] [Indexed: 02/02/2023]
Abstract
Since strictly related to balance and stability control, body center of mass (CoM) kinematics is a relevant quantity in sport surveys. Many methods have been proposed to estimate CoM displacement. Among them, segmental method appears to be suitable to investigate CoM kinematics in sport: human body is assumed as a system of rigid bodies, hence the whole-body CoM is calculated as the weighted average of the CoM of each segment. The number of landmarks represents a crucial choice in the protocol design process: one have to find the proper compromise between accuracy and invasivity. In this study, using a motion analysis system, a protocol based upon the segmental method is validated, adopting an anatomical model comprising 14 landmarks. Two sets of experiments were conducted. Firstly, our protocol was compared to the ground reaction force method (GRF), accounted as a standard in CoM estimation. In the second experiment, we investigated the aerial phase typical of many disciplines, comparing our protocol with: (1) an absolute reference, the parabolic regression of the vertical CoM trajectory during the time of flight; (2) two common approaches to estimate CoM kinematics in gait, known as sacrum and reconstructed pelvis methods. Recognized accuracy indexes proved that the results obtained were comparable to the GRF; what is more, during the aerial phases our protocol showed to be significantly more accurate than the two other methods. The protocol assessed can therefore be adopted as a reliable tool for CoM kinematics estimation in further sport researches.
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Affiliation(s)
- Andrea Mapelli
- Laboratory of Movement Analysis, Dipartimento di Scienze Biomediche per la Salute, Facoltà di Medicina e Chirurgia, Università degli Studi di Milano, Milano, Italy; Department of Ophthalmology, Otorhinolaryngology, and Head and Neck Surgery, School of Medicine, University of Sao Paulo, Ribeirao Preto, Brazil.
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Abstract
Background: The shoulder is the third-most commonly injured body part in volleyball, with the majority of shoulder problems resulting from chronic overuse. Hypothesis: Significant kinetic differences exist among specific types of volleyball serves and spikes. Study Design: Controlled laboratory study. Methods: Fourteen healthy female collegiate volleyball players performed 5 successful trials of 4 skills: 2 directional spikes, an off-speed roll shot, and the float serve. Volunteers who were competent in jump serves (n, 5) performed 5 trials of that skill. A 240-Hz 3-dimensional automatic digitizing system captured each trial. Multivariate analysis of variance and post hoc paired t tests were used to compare kinetic parameters for the shoulder and elbow across all the skills (except the jump serve). A similar statistical analysis was performed for upper extremity kinematics. Results: Forces, torques, and angular velocities at the shoulder and elbow were lowest for the roll shot and second-lowest for the float serve. No differences were detected between the cross-body and straight-ahead spikes. Although there was an insufficient number of participants to statistically analyze the jump serve, the data for it appear similar to those of the cross-body and straight-ahead spikes. Shoulder abduction at the instant of ball contact was approximately 130° for all skills, which is substantially greater than that previously reported for female athletes performing tennis serves or baseball pitches. Conclusion: Because shoulder kinetics were greatest during spiking, the volleyball player with symptoms of shoulder overuse may wish to reduce the number of repetitions performed during practice. Limiting the number of jump serves may also reduce the athlete’s risk of overuse-related shoulder dysfunction. Clinical Relevance: Volleyball-specific overhead skills, such as the spike and serve, produce considerable upper extremity force and torque, which may contribute to the risk of shoulder injury.
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Affiliation(s)
| | - Glenn S. Fleisig
- American Sports Medicine Institute, Birmingham, Alabama
- Address correspondence to Glenn S. Fleisig, PhD, American Sports Medicine Institute, Saint Vincents Drive, Suite 100, Birmingham, AL 35205 (e-mail: )
| | - Becky Bolt
- American Sports Medicine Institute, Birmingham, Alabama
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Wagner H, Pfusterschmied J, Tilp M, Landlinger J, von Duvillard SP, Müller E. Upper-body kinematics in team-handball throw, tennis serve, and volleyball spike. Scand J Med Sci Sports 2012; 24:345-54. [DOI: 10.1111/j.1600-0838.2012.01503.x] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/15/2012] [Indexed: 12/01/2022]
Affiliation(s)
- H. Wagner
- Department of Sport Science and Kinesiology; University of Salzburg; Rif Salzburg Austria
| | - J. Pfusterschmied
- Department of Sport Science and Kinesiology; University of Salzburg; Rif Salzburg Austria
| | - M. Tilp
- Institute of Sport Science; University of Graz; Graz Styria Austria
| | - J. Landlinger
- Department of Sport Science and Kinesiology; University of Salzburg; Rif Salzburg Austria
| | - S. P. von Duvillard
- Department of Physical Performance; Norwegian School of Sport Sciences; Oslo Norway
| | - E. Müller
- Department of Sport Science and Kinesiology; University of Salzburg; Rif Salzburg Austria
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Pau M, Loi A, Pezzotta MC. Does sensorimotor training improve the static balance of young volleyball players? Sports Biomech 2012; 11:97-107. [DOI: 10.1080/14763141.2011.637126] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Dancers with achilles tendinopathy demonstrate altered lower extremity takeoff kinematics. J Orthop Sports Phys Ther 2011; 41:606-13. [PMID: 21765222 DOI: 10.2519/jospt.2011.3580] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
STUDY DESIGN Controlled laboratory study using a cross-sectional design. OBJECTIVES To analyze lower extremity kinematics during takeoff of a "saut de chat" (leap) in dancers with and without a history of Achilles tendinopathy (AT). We hypothesized that dancers with AT would demonstrate different kinematic strategies compared to dancers without pathology, and that these differences would be prominent in the transverse and frontal planes. BACKGROUND AT is a common injury experienced by dancers. Dance leaps such as the saut de chat place a large demand on the Achilles tendon. METHODS Sixteen female dancers with and without a history of AT (mean ± SD age, 18.8 ± 1.2 years) participated. Three-dimensional kinematics at the hip, knee, and ankle were quantified for the takeoff of the saut de chat, using a motion analysis system. A force platform was used to determine braking and push-off phases of takeoff. Peak sagittal, frontal, and transverse plane joint positions during the braking and push-off phases of the takeoff were examined statistically. Independent samples t tests were used to evaluate group differences (α = .05). RESULTS The dancers in the tendinopathy group demonstrated significantly higher peak hip adduction during the braking phase of takeoff (mean ± SD, 13.5° ± 6.1° versus 7.7° ± 4.2°; P = .046). During the push-off phase, dancers with AT demonstrated significantly more internal rotation at the knee (13.2° ± 5.2° versus 6.9° ± 4.9°; P = .024). CONCLUSION Dancers with AT demonstrate increased peak transverse and frontal plane kinematics when performing the takeoff of a saut de chat. These larger displacements may be either causative or compensatory factors in the development of AT.
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Kinematic Comparison of Team Handball Throwing With Two Different Arm Positions. Int J Sports Physiol Perform 2010; 5:469-83. [DOI: 10.1123/ijspp.5.4.469] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Purpose:The aims of the present study were: (1) to compare the differences in the ball release speed and throwing accuracy between the ABOVE and SIDE throw; (2) to analyze kinematic differences of these two throwing techniques; and (3) to give practical applications to team handball coaches and players.Methods:Ball release speed, throwing accuracy, and kinematics were measured via the Vicon MX 13 (Vicon Peak, Oxford, UK) from 12 male elite right-handed team handball players.Results:Results of our study suggest that the two throwing techniques differ significantly (P < .0073) in the angles and/or angular velocities of the trunk (flexion, left tilt and rotation) and shoulder (flexion and abduction) of the throwing arm that result in a significantly different ball release speed (1.4 ± 0.8 m/s; P < .001) and that throwing accuracy was not significantly different.Conclusion:Our results indicated that the different position of the hand at ball release of the ABOVE and SIDE throws is primarily caused by different trunk flexion and tilt angles that lead to differences in ball release speed but not in throwing accuracy, and that the participants try to move their throwing arm similarly in both throwing techniques.
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