Relationship Between Power Output and Speed-Related Performance in Brazilian Wheelchair Basketball Players

2020 ◽  
Vol 37 (4) ◽  
pp. 508-517
Author(s):  
Irineu Loturco ◽  
Michael R. McGuigan ◽  
Valter P. Reis ◽  
Sileno Santos ◽  
Javier Yanci ◽  
...  
Keyword(s):  
Bench Press ◽  
Load Test ◽  
Wheelchair Basketball ◽  
Basketball Players ◽  
Significance Level ◽  
Testing Procedures ◽  
National Team ◽  
Power Load ◽  
The Mean ◽  
Regular Training

This study aimed to investigate the association between the optimum power load in the bench press (BP), shoulder press (SP), and prone bench pull (PBP) exercises and acceleration (ACC) and speed performances in 11 National Team wheelchair basketball (WB) players with similar levels of disability. All athletes were previously familiarized with the testing procedures that were performed on the same day during the competitive period of the season. First, athletes performed a wheelchair 20-m sprint assessment and, subsequently, a maximum power load test to determine the mean propulsive power (MPP) in the BP, SP, and PBP. A Pearson product–moment correlation was used to examine the relationships between sprint velocity (VEL), ACC, and the MPP in the three exercises. The significance level was set as p < .05. Large to very large significant associations were observed between VEL and ACC and the MPP in the BP, SP, and PBP exercises (r varying from .60 to .77; p < .05). The results reveal that WB players who produce more power in these three exercises are also able to accelerate faster and achieve higher speeds over short distances. Given the key importance of high and successive ACCs during wheelchair game-related maneuvers, it is recommended that coaches frequently assess the optimum power load in BP, SP, and PBP in WB players, even during their regular training sessions.

scholarly journals Correlation between sleep and psychological mood states in female wheelchair basketball players on a Japanese national team

2017 ◽  
Vol 29 (9) ◽  
pp. 1497-1501 ◽  
Author(s):  
Kenji Tsunoda ◽  
Hirotaka Mutsuzaki ◽  
Kazushi Hotta ◽  
Yukiyo Shimizu ◽  
Naruki Kitano ◽  
...  
Keyword(s):  
Mood States ◽  
Wheelchair Basketball ◽  
Basketball Players ◽  
National Team ◽  
Psychological Mood

scholarly journals Influence of Functional Classification on Skill Tests in Elite Female Wheelchair Basketball Athletes

Medicina ◽  
2019 ◽  
Vol 55 (11) ◽  
pp. 740 ◽  
Author(s):  
Kaori Tachibana ◽  
Hirotaka Mutsuzaki ◽  
Yukiyo Shimizu ◽  
Takashi Doi ◽  
Kazushi Hotta ◽  
...  
Keyword(s):  
Point Of View ◽  
Functional Classification ◽  
Wheelchair Basketball ◽  
Basketball Players ◽  
National Team ◽  
Test Items ◽  
Skill Test ◽  
Functional Classes ◽  
Kinematic Point ◽  
Ball Test

Background and objectives: Wheelchair basketball players are classified into four functional classes according to the player’s “volume of action”, characterized by trunk movement and stability. As this classification is based on a kinematic point of view, test items might be differentially affected by the functional classification level. We aimed to clarify field-based skill test items closely related to the functional classification level. Materials and Methods: Twenty-six female wheelchair basketball athletes (Japan National Team candidates) completed seven field-based skill tests (20 m sprint, agility T-test, figure-eight with a ball test, the Yo-Yo 10 m recovery test, and three types of maximal passes), and anthropometric measurements were applied. Results: Significant differences among the classification levels were found for one-hand maximal passes (baseball and hook passes) and the figure-eight with a ball test. Furthermore, performance in the 20 m sprint and 10 m Yo-Yo recovery tests significantly differed between classes 1 and 4. Conclusions: The test items most influenced by the classification levels were one-hand passes, which require trunk stability and balance not only in the horizontal plane, but also in the sagittal and frontal planes. Coaches should consider which test items are strongly affected by the functional classification level when assessing a player’s performance.

scholarly journals A new physical performance classification system for elite handball players: cluster analysis

2016 ◽  
Vol 51 (1) ◽  
pp. 131-142 ◽  
Author(s):  
Iker J. Bautista ◽  
Ignacio J. Chirosa ◽  
Joseph E. Robinson ◽  
Roland van der Tillaar ◽  
Luis J. Chirosa ◽  
...  
Keyword(s):  
Physical Performance ◽  
Peak Power ◽  
Bench Press ◽  
National Level ◽  
Test Results ◽  
Countermovement Jump ◽  
Mean Power ◽  
Squat Jump ◽  
Power Load ◽  
The Mean

Abstract The aim of the present study was to identify different cluster groups of handball players according to their physical performance level assessed in a series of physical assessments, which could then be used to design a training program based on individual strengths and weaknesses, and to determine which of these variables best identified elite performance in a group of under-19 [U19] national level handball players. Players of the U19 National Handball team (n=16) performed a set of tests to determine: 10 m (ST10) and 20 m (ST20) sprint time, ball release velocity (BRv), countermovement jump (CMJ) height and squat jump (SJ) height. All players also performed an incremental-load bench press test to determine the 1 repetition maximum (1RMest), the load corresponding to maximum mean power (LoadMP), the mean propulsive phase power at LoadMP (PMPPMP) and the peak power at LoadMP (PPEAKMP). Cluster analyses of the test results generated four groupings of players. The variables best able to discriminate physical performance were BRv, ST20, 1RMest, PPEAKMP and PMPPMP. These variables could help coaches identify talent or monitor the physical performance of athletes in their team. Each cluster of players has a particular weakness related to physical performance and therefore, the cluster results can be applied to a specific training programmed based on individual needs.

Velocity and Power–Load Association of Bench-Press Exercise in Wheelchair Basketball Players and their Relationships With Field-Test Performance

2019 ◽  
Vol 14 (7) ◽  
pp. 880-886 ◽  
Author(s):  
Aitor Iturricastillo ◽  
Cristina Granados ◽  
Raúl Reina ◽  
José Manuel Sarabia ◽  
Ander Romarate ◽  
...  
Keyword(s):  
Inverse Relationship ◽  
Bench Press ◽  
Wheelchair Basketball ◽  
Basketball Players ◽  
Ability Test ◽  
Change Of Direction ◽  
Repeated Sprint Ability ◽  
Repeated Sprint ◽  
The Relationship ◽  
Sprint Ability

Purpose: To analyze the relationship between mean propulsive velocity (MPV) of the bar and relative load (percentage of the 1-repetition maximum [%1RM]) in the bench-press (BP) exercise and to determine the relationship of power variables (ie, mean concentric power [MP], mean propulsive power [MPP], and peak power [PP]) in change-of-direction ability, linear sprint, and repeated-sprint ability. Methods: A total of 9 Spanish First Division wheelchair basketball players participated in the study. All participants performed an isoinertial BP test in free execution mode, a 505 change-of-direction ability test, linear sprint test (20 m), and repeated-sprint ability test. Results: A nearly perfect and inverse relationship was observed for the BP exercise between the %1RM and MPV (r = −.97, R2 = .945, P < .001). The maximum loads for MP, MPP, and PP were obtained between 48.1% and 59.4% of the 1RM. However, no significant correlations were observed between strength and wheelchair performance. Conclusions: Wheelchair basketball players with different functional impairments showed a nearly perfect and inverse relationship for the BP exercise between the %1RM and MPV; thus the MPV could be used to estimate the %1RM. This finding has important practical applications for velocity-based resistance training in that coaches would be able to prescribe and monitor training load. Conversely, the absence of association between BP performance and field tests might be due to other factors such as the wheelchair–user interface, trunk-muscle activity, or propulsion technique, apart from strength variables.

Sprint Performance of Elite Wheelchair Basketball Players: Applicability of a Laser System for Describing the Velocity Curve

2016 ◽  
Vol 33 (4) ◽  
pp. 358-373 ◽  
Author(s):  
Amelia Ferro ◽  
Jorge Villacieros ◽  
Javier Pérez-Tejero
Keyword(s):  
Laser System ◽  
Sprint Performance ◽  
Velocity Curve ◽  
Functional Classification ◽  
Wheelchair Basketball ◽  
Training Context ◽  
Immediate Feedback ◽  
Basketball Players ◽  
Performance Variables ◽  
National Team

The purpose of this study was to develop a methodology to accurately analyze sprint performance of elite wheelchair basketball (WB) players in their own training context using a laser system and to analyze the velocity curve performed by the players regarding their functional classification and their playing position. Twelve WB players, from the Spanish men’s national team, took part in an oncourt 20-m-sprint test. BioLaserSport® was used to obtain time, mean velocities (Vm), maximum velocities (Vmax), and distances at 90%, 95%, and 98% of their Vmax. Vm and Vmax reached high values in Classes II and III and in the guard playing position. The protocol developed with the laser system makes it possible to obtain a precise velocity curve in short sprints and allows easy analysis of decisive kinematic performance variables in WB players, showing immediate feedback to coaches and players. The normalized data allow an interpretation of how much, where, and when Vmax occurs along the test.

scholarly journals Investigation of the Female Athlete Triad in Japanese Elite Wheelchair Basketball Players

Medicina ◽  
2019 ◽  
Vol 56 (1) ◽  
pp. 10 ◽  
Author(s):  
Yukiyo Shimizu ◽  
Hirotaka Mutsuzaki ◽  
Kaori Tachibana ◽  
Kazushi Hotta ◽  
Yasuyoshi Wadano
Keyword(s):  
Total Energy ◽  
Female Athlete ◽  
Stress Fractures ◽  
Female Athlete Triad ◽  
Wheelchair Basketball ◽  
Basketball Players ◽  
Spinal Disorders ◽  
Menstrual Flow ◽  
The Mean ◽  
Skeletal Disorders

Background and objectives: Para-sports have become increasingly competitive, necessitating greater physical activity; secondary disorder prevention is therefore crucial. Among secondary disorders, the female athlete triad (FAT) is defined as low energy availability (EA), menstrual dysfunction, and low bone mineral density (BMD); although studied in able-bodied athletes, reports on female para-athletes are scarce. We retrospectively investigated the FAT in wheelchair basketball players in the Japanese national team. Materials and Methods: Thirteen female wheelchair basketball players (mean age: 28.9 ± 8.1 years) were enrolled. The medical history (underlying diseases, gynecological disorders, and stress fractures), athletic and sport-specific parameters (wheelchair basketball classification, and wheelchair usage conditions), hematological status (hemoglobin, iron, estradiol, progesterone, total P1NP, and TRACP-5b levels), nutritional status (total energy, protein, calcium, and iron intake), body composition (BMD and lean body mass (LBM)), and EA were assessed. Results: Two (15.4%) had pertinent gynecological histories and six (46.2%) had menstrual cycle disorders. Three (23.1%) experienced excessive menstrual flow and nine (69.2%) had menstrual pain. No stress fractures were reported. All laboratory data were within normal limits. Total energy and iron intakes based on age-specific requirements were 99.8% and 59.8%, respectively. Iron and hemoglobin levels correlated with menstrual flow (ρ = −0.63, p = 0.019 and ρ = −0.56, p = 0.046, respectively). The mean total BMD was 109.2%, and the mean EA (41.4 kcal/kg LBM) was lower than recommended levels. The leg BMD in spinal disorders was significantly lower than that in skeletal disorders (p = 0.003). The arm LBM was higher (150.6%) than that of age-matched controls. Conclusion: Among female wheelchair basketball players with FAT, the total BMD was comparable to that of age-matched controls; however, leg BMD in spinal disorders was significantly lower than that in skeletal disorders. Players with heavy menstrual flow had lower hemoglobin and iron levels. Further research is needed on the FAT to optimize health and sports performance among para-athletes.

Correlates of shoulder pain in wheelchair basketball players from the Japanese national team: A cross-sectional study

2016 ◽  
Vol 29 (4) ◽  
pp. 795-800 ◽  
Author(s):  
Kenji Tsunoda ◽  
Hirotaka Mutsuzaki ◽  
Kazushi Hotta ◽  
Kaori Tachibana ◽  
Yukiyo Shimizu ◽  
...  
Keyword(s):  
Shoulder Pain ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Wheelchair Basketball ◽  
Basketball Players ◽  
Cross Sectional ◽  
National Team

scholarly journals ‘Save the queen’: female national wheelchair basketball players in gender-segregated and gender-mixed competitive sport

2021 ◽  
Author(s):  
Steffen Greve ◽  
Jessica Süßenbach
Keyword(s):  
Gender Discrimination ◽  
The Other ◽  
Competitive Sport ◽  
Wheelchair Basketball ◽  
Basketball Players ◽  
Men And Women ◽  
National Team ◽  
Playing Field ◽  
The Difference ◽  
And Gender

AbstractIn the German National Wheelchair Basketball League, men and women play together. On the national teams, on the other hand, they play separately according to gender. In addition, people without disabilities can also participate in wheelchair basketball. The differences in terms of disability and gender are to be classified and, if possible, eliminated in the competition with a classification system. The intersectional analysis of 12 biographical interviews with current national team players shows a clear reproduction of a traditional gender order. The women report various hierarchical relationships on the playing field that are obviously based on gender. Men play in more important positions and are considered more efficient. Yet these phenomena are mostly taken for granted and hardly questioned. Likewise, certain characteristics are attributed and certain roles are assigned to female players based on their gender. The men interviewed do not see these phenomena or do not reflect on them critically. The difference category of disability also has an influence on the competition setting and the gender discrimination.

scholarly journals Wheelchair Basketball World Championships 2018 –player survey on training environment and health complaints

2021 ◽  
Vol 72 (2) ◽  
pp. 61-67
Author(s):  
S Kluge ◽  
A Zech ◽  
P Richarz ◽  
H Riepenhof ◽  
A Junge ◽  
...  
Keyword(s):  
Injury Prevention ◽  
Sports Injury ◽  
High Rate ◽  
Surveillance Systems ◽  
Health Complaints ◽  
Wheelchair Basketball ◽  
Training Environment ◽  
Basketball Players ◽  
National Team ◽  
Environment And Health

Problem: Little is known about health complaints and their prevention in elite wheelchair basketball. The study aimed to survey training environment and health complaints of elite wheelchair basketball players in the 12 months prior to the Wheelchair Basketball World Championships 2018 (WBWC). Methods: Players answered an anonymous retrospective questionnaire on match and training exposure, daily training environment, injury prevention as well as health problems and their implications in the 12 months before the WBWC. Results: In the 12 months prior the WBWC, 46.2% of athletes struggled at least sometimes with physical complaints, and 15.9% played often/always with pain or health complaints. Half of the players (50.8%) did not modify the volume of their training when having health complaints. Sixty percent of the athletes reported that injury prevention exercises were often or always part of their training. The overall training environment and national team support was rated as good or very good by 89.7% and 69.1% of players, respectively. Discussion: Prior to the world championships, wheelchair basketball players reported a high rate of pre-competition health complaints despite good training environment and the use of preventive strategies. Most players indicated they continued to play with pain and health complaints. Frequently playing with health complaints is known from other Olympic sports or pedestrian basketball. Prospective surveillance systems are needed to identify health complaints early and to examine efficiency of preventive measures in order to improve health and probably performance of wheelchair basketball players. Key Words: Paralympic Sports, Sports Injury, Injury Prevention, Trainings Conditions, Elite Athletes

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