ECSS Paris 2023: CP-AP02
INTRODUCTION: In the team sport of basketball, passing decisions significantly influence cumulative scoring and achieving victory. Ball handlers determine their following action based on the positions of teammates and defenders. The outcomes of these decisions are often reflected in the defenders performance. Performance indicators in the notational analysis of sports usually refer to successful actions or outcomes. This study aims to investigate ball handlers decision-making performance indicators through notational analysis. METHODS: Six group-stage matches from the FIBA 3x3 U23 World Cup womens division, featuring the top six and bottom six teams, were analyzed. The Simi Scout notational analysis software was used to record the outcomes of defensive actions following ball handlers decision-making (steals, effective defensive positioning, or defensive failure). Intra-observer reliability was tested using Cohen’s Kappa. Statistical analyses were performed using Jamovi 2.3.28.0. One-tailed independent samples t-tests were conducted to compare the quantity and proportion of defensive outcomes between the top and bottom six teams. RESULTS: Intra-observer reliability was found to range from 0.798 to 0.978. Regarding the number of defensive outcomes, the top six teams demonstrated a significantly higher number of defensive failures by opponents than the bottom six teams (p = 0.028). However, no significant differences were observed in the other two defensive outcomes. Regarding proportions, the top six teams exhibited a significantly higher proportion of defensive failures by opponents (p = 0.043) and a significantly lower proportion of steals by opponents (p = 0.026) compared to the bottom six teams. CONCLUSION: Using basketball’s defensive outcomes as performance indicators of ball handlers decision-making, it was found that ball handlers from top-performing teams generated more open opportunities due to defensive failures and experienced fewer turnovers from steals. Opponents defensive actions can also be used as performance indicators of ball handlers decision-making. Beyond team-based comparisons, this method could also assess changes in athletes decision-making abilities before and after training.
Read CV Chi-Yun ChenECSS Paris 2023: CP-AP02
INTRODUCTION: In the last years, the Swedish world class Team Ahmann / Hellvig (AH) reinvented beach volleyball by introducing the so-called “Swedish Jumpset”. On the second ball contact, they create two Second Ball Options (SBO) either a) by attacking the second ball or b) by faking an attack on the second ball and playing a fast jumpset to the teammate. This style causes massive temporal pressure on the opponent block player in moving to the correct blocking position. This study focusses on seven research questions including i) how of-ten and in which situations do AH create SBO, ii) which factors influence the decision second ball attack vs. jumpset, iii) is setting quality reduced in SBO?, iv) is block quality reduced in SBO, v) how do AH attack in SBO, vi) how effective is attack in SBO, vii) are opponents able to adapt to this playing style? METHODS: In order to answer these research question, we analyzed 34 matches on world tour 2021-2023 (19 won, 15 lost). The sample includes pairs of matches against the same team (ear-ly match, second match around one year later). Notational analysis based on video re-cordings uses a compressive observational system including performance variables as-sociated with SBO, such as position of contacts, quality of reception, setting, block and at-tack as well as direction of the attack and temporal variables. RESULTS: Results show a surprisingly high ratio of situations with SBO (50,5%). Against power serve on Ahman, SBO rate is decreased (50.7% vs. 59.3%) Both players chose the attack-ing option on contact 2 more often (66%) than playing a jump set (34%). There are nor hints towards setting problems when using jump set. Block quality against attack on con-tact 2 is quite low (only 35% in time). On optimal receptions, kill rate ion SBO is increased by ~12% compared to non SBO situations. Opponents were less successful in blocking against AH in the second match. CONCLUSION: AH used the “Swedish Jumpset” very often. By doing this, they reduced bock quality without introducing inaccurate setting. This leads to an increased attacking success com-pared to non SBO situations. Most opponents were no able to create countermeasures in the second match. Attacking success suggest that AH, were only able to establish them-selves under the world top teams, because the take use of this tactical-technical mean.
Read CV Daniel LinkECSS Paris 2023: CP-AP02
INTRODUCTION: With lacrosses return to the Olympics in 2028, this study aims to examine the physical and performance characteristics of elite Czech womens lacrosse players and compare them with previously published results for their NCAA Division I and III counterparts in the US. The goal is to identify areas for improvement and align with the performance standards set by advanced lacrosse programs such as those in the United States. METHODS: The study included Czech national team players (N=24) and club players (N=41), measuring metrics such as body weight, height, skeletal muscle percentage, body fat percentage, and performance tests including shooting speed. Performance evaluations also involved countermovement jumps without added weight and with 20 kg and 40 kg weights, as well as static jumps with a 40 kg load. Our findings were compared with existing NCAA data to identify training gaps and standardize training practices. RESULTS: There were significant physical and performance disparities between Czech players and their NCAA counterparts. Specifically, the shooting speed for Czech national players was recorded at 87.84 km/h (±12.63 km/h), considerably lower than the 129.02 km/h (±16.42 km/h) observed for NCAA Division I athletes. Additionally, the countermovement jump for Czech players was 29.1 cm (±4.2 cm) compared to 44 cm (±6.2 cm) for NCAA Division I. Somatic differences were also notable with Czech players averaging a height of 169.3 cm (±6.2 cm), weight of 67.42 kg (±11.1 kg), and body fat percentage of 23.2% (±5.3%), which contrasts with their NCAA Division I and III counterparts. These findings underscore the need for targeted training improvements to reach competitive standards set by top-tier U.S. programs. CONCLUSION: The findings indicate significant disparities in physical characteristics and performance outputs between Czech womens lacrosse players and their NCAA counterparts. This knowledge is crucial for optimizing the preparation of Czech players for the 2028 Olympics
Read CV Tomas CASRIECSS Paris 2023: CP-AP02