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Previous research suggests the existence of an expert anticipatory advantage, whereby skilled sportspeople are able to predict an upcoming action by utilizing cues contained in their opponent's body kinematics. This ability is often inferred from "occlusion" experiments: information is systematically removed from first-person videos of an opponent, for example, by stopping a tennis video at the point of racket-ball contact, yet performance, such as discrimination of shot direction, remains above chance. In this study, we assessed the expert anticipatory advantage for tennis ground strokes via a modified approach, known as "bubbles," in which information is randomly removed from videos in each trial. The bubbles profile is then weighted by trial outcome (i.e., a correct vs. incorrect discrimination) and combined across trials into a classification array, revealing the potential cues informing the decision. In two experiments (both with = 34 skilled tennis players) we utilized either temporal or spatial bubbles, applying them to videos running from 0.8 to 0 s before the point of racket-ball contact (cf. Jalali et al., 2018). Results from the spatial experiment were somewhat suggestive of accrual from the torso region of the body, but were not compelling. Results from the temporal experiment, on the other hand, were clear: information was accrued mainly during the period immediately prior to racket-ball contact. This result is broadly consistent with prior work using nonstochastic approaches to video manipulation, and cannot be an artifact of temporal smear from information accrued after racket-ball contact, because no such information was present.
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http://dx.doi.org/10.3389/fpsyg.2019.01969 | DOI Listing |
Int J Sports Physiol Perform
November 2024
Amsterdam Rehabilitation Research Center | Reade, Amsterdam, the Netherlands.
Purpose: To investigate the effect of a newly developed hand rim in wheelchair tennis players from a lab and field perspective.
Methods: Nine wheelchair tennis players performed a set of field and lab tests with the new rim (NR) and regular rim on the racket side. Each player had a 60- to 120-minute regular training session with the NR.
Ann Med
December 2024
Virginia Concussion Intiative, George Mason University, Manassas, VA, USA.
Background/objective: Headgear designed to protect girls' lacrosse athletes is widely available and permitted for voluntary use; however, it remains unknown how policies mandating headgear use may change the sport and, particularly regarding impacts during game-play. Therefore, this study compares the impact rates and game play characteristics of girls' high school lacrosse in Florida which mandates headgear use (HM), with states having no headgear mandate (NHM).
Materials And Methods: Video from 189 randomly-selected games (HM: 64, NHM: 125) were analyzed.
Sci Rep
May 2024
College of Physical Education and Health Sciences, Zhejiang Normal University, Jinhua, China.
During fatigued conditions, badminton players may experience adverse effects on their ankle joints during smash landings. In addition, the risk of ankle injury may vary with different landing strategies. This study aimed to investigate the influence of sport-specific fatigue factors and two backhand smash actions on ankle biomechanical indices.
View Article and Find Full Text PDFNeuroscience
May 2024
School of Psychology, Shanghai University of Sport, No. 650, Qingyuanhuan Road, Yangpu District, Shanghai 201620, People's Republic of China; Key Laboratory of Motor Cognitive Assessment and Regulation, Shanghai University of Sport, No. 650, Qingyuanhuan Road, Yangpu District, Shanghai 201620, People's Republic of China. Electronic address:
An exceptional ability to accurately anticipate an opponent's action is paramount for competitive athletes and highlights their experiential mastery. Despite conventional associations of action observation with specific brain regions, neuroimaging discrepancies persist. To explore the brain regions and neural mechanisms undergirding action anticipation, we compared distinct brain activation patterns involved in table tennis serve anticipation of expert table tennis athletes vs.
View Article and Find Full Text PDFHum Mov Sci
June 2024
College of Physical Education and Sports, Beijing Normal University, Beijing, China. Electronic address:
The jump smash is badminton's most aggressive technical manoeuvre, which is often the key to winning a match. This paper aims to explore the neuromuscular control strategies of advanced and beginner players when jumping smash in different ways. Collecting sEMG and kinematic data from 18 subjects with different motor experiences when jumping smash.
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