Sports Vision Research Articles

スパイクレシーブにおけるスポーツビジョン向上を目的とした没入型3D-VR訓練システムの開発

スパイクレシーブにおけるスポーツビジョン向上を目的とした没入型3D-VR訓練システムの開発

Development of a Peripheral Vision Training System Integrating Sports Vision and Motor System

Development of a Peripheral Vision Training System Integrating Sports Vision and Motor System

Effect of sports vision exercise on visual perception and reading performance in 7- to 10-year-old developmental dyslexic children.

The presented study was aimed at identifying for the first time the influence of sports vision exercises on fundamental motor skills and cognitive skills of 7- to 10-year-old developmental dyslexic Persian children. A pretest-posttest quasi-experimental study was conducted. The statistical population of this study was 7- to 10-year-old dyslexic children referring to two centres of learning disorder in the city of Isfahan. Twenty two of these children were selected using available and purposive sampling from the statistical population and were randomly assigned into two groups of experimental and control. The former (experimental group) participated in sports vision exercise courses for 12 weeks (3 one hr sessions per week) and the latter (control group) continued their routine daily activities during the exercise. Before the beginning and at the end of the exercise, Gardner’s test of visual perception test - revised and Dehkhoda’s reading skills test was administered to both groups. The results showed that the sports vision exercises increases motor skills, visual perceptual skills and reading skills in developmental dyslexic children. Based on the results of the presented study it was concluded that sports vision exercises can be used for fundamental and cognitive skills of developmental dyslexic children.

The myth of clean sport and its unintended consequences

Anti-doping has long been premised on the myth of clean sport, a consistent vision that has survived changes in the social and cultural environment. This article starts with a discussion of the meaning of clean sport focusing on the gap between this idealisation and practice. It then traces the historical emergence of this myth, briefly explaining its cultural foundations, and its influence on in-competition drug testing development in the 1960s. It is argued that clean sport only made sense when the focus was on in-competition use of stimulants. The emergence of drugs such as steroids, used out of competitions, created a conflict between the reality of doping practices and the mythical past and future idealisation of sport as clean. Nonetheless anti-doping leaders maintained their public position that testing systems could defeat doping practices. Due to the continuity of ethical ideas, the construction of health fears, and public scandals, the World Anti-Doping Agency pressed on with, and was empowered by, the absolutist clean sport vision leading to the conceptually flawed, contradictory, draconian and problematic policy environment we face today.

The Effects of Sports Vision Training on Sensorimotor Abilities in Collegiate Softball Athletes

The Effects of Sports Vision Training on Sensorimotor Abilities in Collegiate Softball Athletes

Vision Examination Protocol for Archery Athletes Along With an Introduction to Sports Vision.

Introduction:Visual skills are one of the main pillars of intangible faculties of athletes that can influence their performance. Great number of vision tests used to assess the visual skills and it will be irrational to perform all vision tests for every sport.Objectives:The purpose of this protocol article is to present a relatively comprehensive battery of tests and assessments on static and dynamic aspects of sight which seems relevant to sports vision and introduce the most useful ones for archery.Materials and Methods:Through extensive review of the literature, visual skills and respective tests were listed; such as ‘visual acuity, ‘contrast sensitivity’, ‘stereo-acuity’, ‘ocular alignment’, and ‘eye dominance’. Athletes were defined as “elite” and “non-elite” category based on their past performance. Dominance was considered for eye and hand; binocular or monocular aiming was planned to be recorded. Illumination condition was defined as to simulate the real archery condition to the extent possible. The full cycle of examinations and their order for each athlete was sketched (and estimated to take 40 minutes). Protocol was piloted in an eye hospital. Female and male archers aged 18 - 38 years who practiced compound and recurve archery with a history of more than 6 months were included.Conclusions:We managed to select and design a customized examination protocol for archery (a sight-intensive and aiming type of sports), serving skill assessment and research purposes. Our definition for elite and non-elite athletes can help to define sports talent and devise skill development methods as we compare the performance of these two groups. In our pilot, we identified 8 “archery figures” (by hand dominance, eye dominance and binocularity) and highlighted the concept “congruence” (dominant hand and eye in the same side) in archery performance.

Bénéfices de l’Activité Physique Adaptée couplée à des Interventions Psychologiques ciblées pour les personnes souffrant de Sclérose en Plaques (SEP)

As part of a collaboration between the Centre Sport et Santé of The University of Lausanne and the sports psychologist Mattia Piffaretti, a physical activity program has been adapted for 29 patients suffering from multiple sclerosis. The 29 patients were divided into three research groups. The first group EX (n=5, age=50.6±9.8) followed a bi-weekly physical activity intervention program for a total of 12 weeks in addition to their usual medical treatment. The second group MOT (n=8, age=46.8±8.7) followed a program combining a bi-weekly physical activity intervention (the same as group EX) and bi-monthly exercise psychology sessions for 12 weeks, in addition to their usual medical treatment. The third group Control (n=16, age=47.0±5.4) followed their usual medical treatment. We received 13 patients of the study in the Centre Sport et Santé of The University of Lausanne to give them a specific and adapted physical activity program. This program was divided into shifts “work” and “collective work”. The main objectives of this training were the work of balance (postural control), the work of coordination, building muscle and finally, stretching and joints mobilization. Group work gave the participants a different vision of team sports and allowed them to strengthen relational ties between the group. The global objective of the study, conducted by Mr. Piffaretti, was to determine how much of group physical activity programs, combined or not with targeted psychological interventions inspired by sports psychology, can improve the well-being of patients with Multiple Sclerosis and who have the ability to walk independently.

The Effects of Sports Vision Training on Binocular Vision Function in Female University Athletes.

Binocular vision is the most important visual cue for spatial orientation in many sports. In this study, we investigated how binocular vision was influenced by an eye training program that may be used to improve individual's oculomotor function. The experiment involved twenty-four female student athletes from team ball sports (soccer, basketball, handball). After an initial testing session, 12 participants were randomly allocated to the experimental group. Optometric investigation which included synoptophore testing and a test of dissociated horizontal phoria based on the Maddox method was performed three times: before the experiment, after eight weeks of eye training (3 times a week for 20 minutes), and four weeks after the experiment was terminated. Eye exercise methodology was based on orthoptic, sport and psychological aspects of performance. The phoria screening examination showed that exophoria was the most frequent disorder of binocular vision. Low fusional vergence range was also observed. Following the training period, 3 of the 6 oculomotor variables improved. The greatest effect was observed in near dissociated phoria (χ2 =14.56, p=0.001 for the right eye; χ2 =14.757, p=0.001 for the left eye) and fusional convergence (χ2 =8.522, p=0.014). The results of the retention test conducted four weeks after the experiment confirmed the effectiveness of the vision training program. The results of the study suggest that binocular functions are trainable and can be improved by means of appropriate visual training.

Contributions of Visuo-oculomotor Abilities to Interceptive Skills in Sports.

Monitoring and intercepting a fast approaching object is a critical skill for many sports. Athletes might be distinguished from nonathletes based on their ability to access various visual abilities to accomplish interceptive actions. Here, we examined whether interceptive visuomotor skills of athletes and nonathletes are differently correlated to a hierarchy of visuo-oculomotor abilities related to the perception of motion in depth. Eighty-six athletes in interceptive sports, as well as 60 nonathletes, were recruited based on their sport performance and prior experiences. Their basic visual abilities (dominant eye acuity, contrast sensitivity, visual span, and visual memory) and complex visuo-oculomotor abilities (dynamic acuity, accommodative facility, near point of convergence, and near/far phoria) were analyzed in relation to critical visuomotor skills (manual interception, visually guided locomotion, and depth judgment). Discriminant analysis revealed that athletes and nonathletes can be accurately differentiated based on measured visuomotor skills (91.3% accuracy, p < 0.0001). Near point of convergence, accommodative facility, and dynamic acuity were moderately effective in identifying athletes (71.3%, p = 0.002) and in predicting the three visuomotor skills (all r(2) ≥ 0.096, all p ≤ 0.022). Dominant eye acuity and contrast sensitivity also identified athletes (61.4%, p = 0.021) and contributed to complex visuo-oculomotor abilities (all r(2) ≥ 0.046, all p ≤ 0.039). The correlations among measured abilities were more significant for athletes than nonathletes. Athletes in interceptive sports are superior to nonathletes in their visuomotor skills. They also have broader access to various visual and complex visuo-oculomotor abilities than nonathletes. This likely allows athletes to more effectively coordinate visual and oculomotor abilities under demanding conditions when some visual cues are degraded. The present findings are consistent with a pyramid of sports vision and suggest a top-down process for athlete screening and training.

Quantification of color vision using a tablet display.

Accurate color vision is essential for optimal performance in aviation and space environments using nonredundant color coding to convey critical information. Most color tests detect color vision deficiency (CVD) but fail to diagnose type or severity of CVD, which are important to link performance to occupational demands. The computer-based Cone Contrast Test (CCT) diagnoses type and severity of CVD. It is displayed on a netbook computer for clinical application, but a more portable version may prove useful for deployments, space and aviation cockpits, as well as accident and sports medicine settings. Our purpose was to determine if the CCT can be conducted on a tablet display (Windows 8, Microsoft, Seattle, WA) using touch-screen response input. The CCT presents colored letters visible only to red (R), green (G), and blue (B) sensitive retinal cones to determine the lowest R, G, and B cone contrast visible to the observer. The CCT was measured in 16 color vision normals (CVN) and 16 CVDs using the standard netbook computer and a Windows 8 tablet display calibrated to produce equal color contrasts. Both displays showed 100% specificity for confirming CVN and 100% sensitivity for detecting CVD. In CVNs there was no difference between scores on netbook vs. tablet displays. G cone CVDs showed slightly lower G cone CCT scores on the tablet. CVD can be diagnosed with a tablet display. Ease-of-use, portability, and complete computer capabilities make tablets ideal for multiple settings, including aviation, space, military deployments, accidents and rescue missions, and sports vision. Chacon A, Rabin J, Yu D, Johnston S, Bradshaw T. Quantification of color vision using a tablet display.

Potential of Visual Sensory Screening, Diagnostic Evaluation, and Training for Treatment of Postconcussive Symptoms and Performance Enhancement for Special Forces Qualified Personnel.

Mild traumatic brain injury (mTBI) or concussive injuries remain a challenge for both athletes and clinicians, given high incidence rates and heterogeneous clinical trajectories. Moreover, exposure to blast in combat is compounded by chronic, frequent exposure to a variety of subclinical impacts and overpressure, in some cases annually over many years. Subsequent injuries are often more severe than the original and lead to higher incidence of chronic symptoms in combat units, particularly Special Operations Forces (SOF), which is compounded by a propensity to underreport or avoid Army medical systems altogether. The unique nature and psychological makeup of SOF Soldiers suggest that new guidelines for progressive return-to-activity and return-to-duty decision-making within the traditional medical setting may not be generalizable to this population. Further, the traditional criteria for return to duty and return to play in sport may be insensitive to persistent deficits, resulting in premature return. There is presidential and Department of Defense mandates for continued research in the areas of diagnostics, treatment, and assessments for return to duty. With recent shift toward understanding clinical trajectories, particularly visual and vestibular trajectories, promising new technology from the field of sports vision may prove useful toward that endeavor. Since the advent of performance programs within SOF units, these Soldiers build trust with performance personnel, which include rehabilitative personnel, through consistent and regular shared experience. Implementation of comprehensive vision and visual performance screening in conjunction with the study of sports vision technology within the performance setting, in conjunction with unit medical personnel, may yield important findings for diagnosis and treatment of mTBI; to include the chronically symptomatic postconcussive Soldiers. Last, with a wealth of literature supporting visual skills training for athlete populations, to include competitive shooters, the implementation of visual skills training will likely be a useful adjunct to performance training of SOF personnel.

Die uitwerking van emosionele toestand op die aanleer van visuele vaardighede

The findings of the present study suggest that anxiety, to some extent, influences the learning of focusing, tracking and vergence. Curiosity, on the other hand, did not influence the learning of any of the visual skills under investigation in the present study. Good visual skills are essential components in achieving educational, economic and social success, and independence. A need has been identified to determine whether the visual skills of students can be improved through sports vision exercises, and whether the potential benefits derived from these sports vision exercises could be influenced by emotional states such as anxiety and curiosity. Since little research has been conducted on the relationship between the learning of visual skills and the presence of these two emotional states, one needs to determine the extent to which anxiety and curiosity affect the learning of visual skills. For the purposes of this study, a quantitative research methodology was used. A quasi-experimental approach was employed to collect data on visual skills and the effects of sports vision exercises on these visual skills. The sample consisted of second-year physiology students (n = 204) and included students of genders, various ethnicities, and ages ranging from 18 to 27 years of age. Anxiety and curiosity were measured by using the State-Trait Personality Inventory (STPI), whilst the visual skills of the participants were measured by using a battery of visual skills tests. The results proved that sports vision exercises can improve some visual skills. It should, however, be noted that anxiety levels must be controlled when administering this training. The findings of the present study suggest that anxiety, to some extent, negatively influences the learning of focusing, tracking and vergence. Curiosity on the other hand did not influence the learning of any of the visual skills under investigation in the present study.

Sport and the neo-liberal world order

Abstract Sport is a huge global enterprise worth nearly $150 billion annually. As a result international federations and other stakeholders are keen to maintain the veneer of integrity and morality in an idealized vision of sport. The value of sport and what it means to the operation of global sports federations and associated enterprises, most notably the International Olympic Committee (IOC); The International Federation of Football Associations (FIFA); and the World Anti-Doping Agency (WADA), is discussed. In this short viewpoint article I analyse the political economy underpinning the ‘war’ on athletes being waged at present in the name of ‘pure sport’. I argue that ‘pure sport’ and ‘level playing field’ are ideologies used to maintain the power position of major international sporting federations rather than an actual goal of these federations.

Effect of Vision Training On Serving Skill of Volley Ball Players

For the purpose of this study the investigator randomly selected thirty two volleyball players (N=32) from School of Physical Education and Sports Science, Kannur University and B S E Volley ball club Aleppey who were equally divided into experimental group and control group (n=16). Their age ranged from 20 to 25years. The experimental group got sports vision training according to training programme and each training session was for one hour and the total duration of the training programme was for six week. During this period, the control group was let off without any training. The effect of vision training on the serving ability was tested. The pre-test was conducted on the experimental and control group. After six weeks of training post-test was conducted. „T?test was used to analyse the data. From the statistical analysis it is evident that in serving test item significant changes were noticed after training.

Sport, health and the genesis of a physical activity policy in the Netherlands

Sport and physical activity have become prominent tools in governmental health policy in the Netherlands. This paper focuses on developments in dominant understandings of sport and physical activity in relation to notions of health in the field of sport policy since the 1950s. We show that ‘sport is good for health’ arguments were emphasized and mitigated by different stakeholders with diverging purposes at different moments in time, to stimulate or legitimize interference of the national government in the field of sport. By studying changes in the power balances between the state, the private sport sector and other stakeholders, we explain how, gradually, public health became a, and at times the, major legitimization for this interference. Furthermore, we demonstrate how these developments coincided with a narrowing of the vision of sport, as frequency and intensity became more important than what was actually practised. In this process, sport became blurred with other terms like physical activity and recreation, and new interest groups entered the field of sport and health. However, these developments had real consequences for the sport sector. This paper clearly illustrates the unintended and complex outcomes of a policy process with interdependent power relations and interests. Over the past decades, health-related aims gained dominance in Dutch sport policy, but certainly not in a straightforward way.

The role of visual perception measures used in sports vision programmes in predicting actual game performance in Division I collegiate hockey players

In the growing field of sports vision little is still known about unique attributes of visual processing in ice hockey and what role visual processing plays in the overall athlete’s performance. In the present study we evaluated whether visual, perceptual and cognitive/motor variables collected using the Nike SPARQ Sensory Training Station have significant relevance to the real game statistics of 38 Division I collegiate male and female hockey players. The results demonstrated that 69% of variance in the goals made by forwards in 2011–2013 could be predicted by their faster reaction time to a visual stimulus, better visual memory, better visual discrimination and a faster ability to shift focus between near and far objects. Approximately 33% of variance in game points was significantly related to better discrimination among competing visual stimuli. In addition, reaction time to a visual stimulus as well as stereoptic quickness significantly accounted for 24% of variance in the mean duration of the player’s penalty time. This is one of the first studies to show that some of the visual skills that state-of-the-art generalised sports vision programmes are purported to target may indeed be important for hockey players’ actual performance on the ice.

Codification of refereeing Vision of competitive sports shows

There will be presentations for the purpose of competition and subject to arbitration, in order to enrich the area of sports and the introduction of an element of seriousness and concern of the designers of creativity and upgrading in the field of sports. That is why it has become the world countries compete periodically in the field of sports and for adults and children and the elderly and those with special needs, under the name of gymnastics.

The Effect of Sports Vision Training on Performance of Table Tennis Amateurs

The Effect of Sports Vision Training on Performance of Table Tennis Amateurs

A Study on Posture Correction Based on Computer Vision

During basketball sport, the movement of a joint is quite complex. And if move fast, it is difficult to constrain by fix algorithm the subtle angle changes between joints. Traditional sports vision modeling method is unable to describe the moving changes of the small areas which causes the unsatisfactory measuring effect of subtle posture in motion. This paper proposes a measurement method for three-dimensional motion posture of basketball athletes. It converts the constrained optimization problem for motion parameters as a nonlinear minimization problem by optimizing human motion parameters; uses L-M motion constraints parameter to provide fast convergent regularization method, in order to seek motion and structural parameters matrix of non-rigid basketball sport and complete three-dimensional measurement for motion parameters. The simulation results show that the method can accurately measure the 3D movement parameters of the athletes.

Determining Eye–Hand Coordination Using the Sport Vision Trainer: An Evaluation of Test–Retest Reliability

The purpose of this investigation was to assess the number of test–retest trials required to familiarize participants in order to provide acceptable reliability for the measurement of an eye–hand coordination task using the Sport Vision Trainer (SVT). Two schedules were conducted (S1 and S2). For S1, 64 participants (male n = 51, age 20.8 ± 4.9 years; female n = 13, age 20.1 ± 2.1 years) attended four sessions each 1 week apart, and undertook four trials using the SVT. For S2, 60 participants (male n = 46, age 20.8 ± 4.9 years; female n = 14, age 20.1 ± 2.1 years) attended one 20-minute schedule consisting of four consecutive trials using the SVT. Limits of agreement (LoA) analyses showed that absolute reliability was increased in both studies. The LoA for S2 indicate that error decreased between trial 1–2, 2–3, and 3–4; ± 0.95 (CI, −1.16, +2.56sec), ± 0.97 (CI, −1.66, +2.14sec), ± 0.69 (CI, −1.08, +1.62sec). It was concluded that reliable measurements of eye–hand coordination can be obtained using the SVT in one session.