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Wu R, Yang Q, Cui W, Gao D, Luo Y, Wang D. Relationship between visual ability assessment and punch performance in competition in male amateur boxers. Front Physiol 2024; 15:1429554. [PMID: 39081778 PMCID: PMC11286555 DOI: 10.3389/fphys.2024.1429554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Accepted: 06/26/2024] [Indexed: 08/02/2024] Open
Abstract
Sport visual ability plays an important role in the performance of elite athletes in competition. However, its relationship with boxers' performance has not been fully understood. This study investigated the relationship between sports visual abilities and in-competition punching performance in 26 highly trained male amateur boxers. Ten visual abilities of the boxers were tested using the Senaptec Sensory Station (Senaptec, Beaverton, OR, United States), including Visual Clarity (VC), Contrast Sensitivity (CS), Depth Perception (DP), Near Far Quickness (NFQ), Target Capture (TC), Perception Span (PS), Multiple Object Tracking (MOT), Eye-Hand Coordination (EHC), Go/No Go (GNG), and Reaction Time (RT). Performance analyses were conducted on national boxing championships conducted by the boxers to analyze their punching accuracy. Correlation and regression analyses showed that punch performance %Hit was very strong correlated with DP, EHC, GNG, and RT, and showed a strong correlation with VC, CS, and PS. %Hit was moderate correlated with MOT, while there was no correlation with NFQ and TC. In addition, RT, EHC, and DP are important visual ability variables for boxers. The results of this study indicate that there is an overall relationship between sports visual ability and boxing performance, but there is also a specific relationship between variables in visual ability and boxing performance, especially faster reaction times, better processing of visual information, and decision-making abilities, and the ability to accurately recognize the distance and position of an opponent and their punches are essential for enhancing boxing performance. Further studies are needed to investigate the relationship between sport visual ability and more comprehensive performance in boxers, and the possibility of enhancing performance through specific visual training.
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Affiliation(s)
- Rui Wu
- School of Athletic Performance, Shanghai University of Sport, Shanghai, China
- Shanghai Key Lab of Human Performance, Shanghai University of Sport, Shanghai, China
| | - Qingyuan Yang
- Xinjiang Research Institute of Sports Science, Urumqi, China
| | - Weijia Cui
- School of Athletic Performance, Shanghai University of Sport, Shanghai, China
| | - Dongxu Gao
- School of Athletic Performance, Shanghai University of Sport, Shanghai, China
| | - Yifei Luo
- School of Athletic Performance, Shanghai University of Sport, Shanghai, China
| | - Dexin Wang
- School of Athletic Performance, Shanghai University of Sport, Shanghai, China
- Shanghai Key Lab of Human Performance, Shanghai University of Sport, Shanghai, China
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2
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Quevedo-Junyent L, Argilés M. Influence of trajectory and contrast on dynamic visual acuity in elite team sports players. Perception 2024; 53:437-449. [PMID: 38646722 DOI: 10.1177/03010066241248077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Abstract
Dynamic visual acuity (DVA) is considered an essential component for studying the visual function, especially in challenging environments like team sports. Beyond frequent comparative studies, much information is still lacking about the mechanisms underlying DVA and possible differences in stimulus presentation. It is crucial to understand the performance of DVA under different conditions of contrast and trajectories to achieve more specific data and better ecological validity of measurements. Fifty-five top professional male Spanish athletes, including 23 soccer, 14 basketball, and 18 water polo players were selected. Static visual acuity (SVA) was evaluated at 5 m. DVA was determined at 2 m under combined conditions of velocity (52°/s), three trajectories (horizontal, diagonal 45° and 135°) and two contrasts (99.7% and 13%). Significant differences in most DVA conditions measurements show that the best scores correspond to horizontal, over diagonal trajectories, and high contrast. The correlation between SVA and DVA showed a different relationship depending on the contrast conditions. Professional soccer, basketball, and water polo players have similar characteristics with reference to all the DVA evaluated conditions.
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Lochhead L, Feng J, Laby DM, Appelbaum LG. Visual Performance and Sports: A Scoping Review. JOURNAL OF SPORT & EXERCISE PSYCHOLOGY 2024:1-13. [PMID: 38815973 DOI: 10.1123/jsep.2023-0267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 02/08/2024] [Accepted: 04/03/2024] [Indexed: 06/01/2024]
Abstract
Vision is central to success in nearly all sports, and there is an emerging body of research investigating the links between visual abilities and athletic performance. This preregistered scoping review seeks to clarify the topics of study, methodologies used, populations under investigation, researchers, and disciplines driving this field. Systematic searches of English-language articles were conducted in PubMed and Web of Science, with additional literature identified through bibliographic searches. Six hundred sixty-seven articles published between 1976 and 2023 were identified with 547 empirical studies, 58 review articles, 20 commentaries, and 4 meta-analyses, among others. Among the empirical papers, 411 reported on visual assessments and 98 on vision training interventions. The most represented sports included baseball, soccer, basketball, and cricket, with over 150 articles reporting on professional, elite, or Olympic athletes. This scoping review describes the breadth of this emerging field, identifies its strengths and weaknesses, and provides recommendations for future improvement.
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Affiliation(s)
| | - Jiren Feng
- University of California, San Diego, CA, USA
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Strainchamps P, Ostermann M, Mierau A, Hülsdünker T. Stroboscopic Eyewear Applied During Warm-Up Does Not Provide Additional Benefits to the Sport-Specific Reaction Speed in Highly Trained Table Tennis Athletes. Int J Sports Physiol Perform 2023; 18:1126-1131. [PMID: 37321564 DOI: 10.1123/ijspp.2022-0426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 04/07/2023] [Accepted: 05/15/2023] [Indexed: 06/17/2023]
Abstract
PURPOSE While long-term training with stroboscopic eyewear suggests performance-enhancing effects on visuomotor abilities, it remains unclear whether a short-term application, for example, during a warm-up, results in immediate performance gains. This study evaluated potential performance-enhancing effects of stroboscopic eyewear applied during warm-up on reaction speed that may provide athletes an edge in visuomotor-demanding sports. METHODS Twenty-eight international-level table tennis athletes participated in this study. Participants performed their individual 10-minute table-tennis-specific warm-up under normal visual conditions and with stroboscopic eyewear. Prior to and after the warm-up, visuomotor reaction time was assessed in a sport-specific reaction test where athletes had to return 30 table tennis balls played by a ball machine at high speed to their backhand side. Reaction time was determined as the interval between ball output and movement onset as triggered by a mechanical switch. Furthermore, the time between ball-table contact and ball-racket contact (hit time) was analyzed as an indicator of how early the athletes intercepted the ball. RESULTS Reaction time significantly improved following the warm-up (P < .001, ηp2=.393). However, there was no additional benefit of the stroboscopic eyewear (P = .338, ηp2=.034). No changes after the warm-up were observed for hit time (P = .246, ηp2=.055). CONCLUSIONS The results indicate that warm-up facilitated visuomotor reaction speed; however, stroboscopic eyewear did not provide additional positive effects when compared to a warm-up under normal visual conditions. While shutter glasses may be useful for training over longer periods, short-term positive effects were not supported in this study.
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Affiliation(s)
- Paul Strainchamps
- Department of Exercise and Sport Science, LUNEX International University of Health, Exercise and Sports, Differdange,Luxembourg
| | | | - Andreas Mierau
- Department of Exercise and Sport Science, LUNEX International University of Health, Exercise and Sports, Differdange,Luxembourg
- Luxembourg Health & Sport Sciences Research Institute (LHSSRI), Differdange,Luxembourg
- Institute of Movement and Neurosciences, German Sport University Cologne, Cologne,Germany
| | - Thorben Hülsdünker
- Department of Exercise and Sport Science, LUNEX International University of Health, Exercise and Sports, Differdange,Luxembourg
- Luxembourg Health & Sport Sciences Research Institute (LHSSRI), Differdange,Luxembourg
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Teymoori H, Amiri E, Tahmasebi W, Hoseini R, Grospretre S, Machado DGDS. Effect of tDCS targeting the M1 or left DLPFC on physical performance, psychophysiological responses, and cognitive function in repeated all-out cycling: a randomized controlled trial. J Neuroeng Rehabil 2023; 20:97. [PMID: 37496055 PMCID: PMC10373277 DOI: 10.1186/s12984-023-01221-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 07/19/2023] [Indexed: 07/28/2023] Open
Abstract
BACKGROUND Despite reporting the positive effects of transcranial direct current stimulation (tDCS) on endurance performance, very few studies have investigated its efficacy in anaerobic short all-out activities. Moreover, there is still no consensus on which brain areas could provide the most favorable effects on different performance modalities. Accordingly, this study aimed to investigate the effects of anodal tDCS (a-tDCS) targeting the primary motor cortex (M1) or left dorsolateral prefrontal cortex (DLPFC) on physical performance, psychophysiological responses, and cognitive function in repeated all-out cycling. METHODS In this randomized, crossover, and double-blind study, 15 healthy physically active men underwent a-tDCS targeting M1 or the left DLPFC or sham tDCS in separate days before performing three bouts of all-out 30s cycling anaerobic test. a-tDCS was applied using 2 mA for 20 min. Peak power, mean power, fatigue index, and EMG of the quadriceps muscles were measured during each bout. Heart rate, perceived exertion, affective valence, and arousal were recorded two minutes after each bout. Color-word Stroop test and choice reaction time were measured at baseline and after the whole anaerobic test. RESULTS Neither tDCS montage significantly changed peak power, mean power, fatigue index, heart rate, affective valence, arousal, and choice reaction time (p> 0.05). a-tDCS over DLPFC significantly lowered RPE of the first bout (compared to sham; p=0.048, Δ=-12.5%) and third bout compared to the M1 (p=0.047, Δ=-12.38%) and sham (p=0.003, Δ=-10.5%), increased EMG of the Vastus Lateralis muscle during the second (p=0.016, Δ= +40.3%) and third bout (p=0.016, Δ= +42.1%) compared to sham, and improved the score of color-word Stroop test after the repeated all-out task (p=0.04, Δ= +147%). The qualitative affective response (valence and arousal) was also higher under the M1 and DLPFC compared to the sham. CONCLUSION We concluded that tDCS targeting M1 or DLPFC does not improve repeated anaerobic performance. However, the positive effect of DLPFC montage on RPE, EMG, qualitative affective responses, and cognitive function is promising and paves the path for future research using different tDCS montages to see any possible effects on anaerobic performance. TRIAL REGISTRATION This study was approved by the Ethics Committee of Razi University (IR.RAZI.REC.1400.023) and registered in the Iranian Registry of Clinical Trials (IRCT id: IRCT20210617051606N5; Registration Date: 04/02/2022).
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Affiliation(s)
- Hafez Teymoori
- Exercise Metabolism and Performance Lab (EMPL), Department of Exercise Physiology, Faculty of Sport Sciences, Razi University, Kermanshah, Iran
| | - Ehsan Amiri
- Exercise Metabolism and Performance Lab (EMPL), Department of Exercise Physiology, Faculty of Sport Sciences, Razi University, Kermanshah, Iran.
| | - Worya Tahmasebi
- Exercise Metabolism and Performance Lab (EMPL), Department of Exercise Physiology, Faculty of Sport Sciences, Razi University, Kermanshah, Iran
| | - Rastegar Hoseini
- Exercise Metabolism and Performance Lab (EMPL), Department of Exercise Physiology, Faculty of Sport Sciences, Razi University, Kermanshah, Iran
| | - Sidney Grospretre
- EA4660-C3S Laboratory - Culture, Sports, Health and Society, University Bourgogne France- Comte, Besancon, France
| | - Daniel Gomes da Silva Machado
- Research Group in Neuroscience of the Human Movement (NeuroMove), Department of Physical Education, Federal University of Rio Grande do Norte, Natal, RN, Brazil
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Oliveira TACD, Davids K, Denardi RA, Zalla S, Corrêa UC. Interpersonal coordination tendencies and perception of visual information for decision-making in futsal. PSYCHOLOGY OF SPORT AND EXERCISE 2023; 66:102403. [PMID: 37665865 DOI: 10.1016/j.psychsport.2023.102403] [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: 08/02/2022] [Revised: 02/05/2023] [Accepted: 02/06/2023] [Indexed: 09/06/2023]
Abstract
This study investigated how futsal players visually perceived information on angular interpersonal coordination relations, between available sources such as nearest defender, goalkeeper position and ball, when deciding to shoot at goal. Experienced players (n = 180) participated in eighteen, video-recorded futsal matches, during which 32 participants wore an eye tracking device. Forty-five sequences of play were selected and edited from the moment a teammate passed the ball to the shooter, until the moment a shot was undertaken. Independent variables included the angle connecting the shooter to their closest defender and goalkeeper, and it's rate of change (velocity and variability) during performance. Then eye tracking system (TOBII PRO) was used to examine gaze patterns of shooters during task performance. Findings revealed that: (i) futsal players adapted their gaze patterns differently between key information sources when shooting confirmed as: their closest defender, goalkeeper, ball, and court floor; and (ii), the ball was the information source which was most fixated on, regardless of the characteristics of interpersonal coordination tendencies that emerged when shooting. These findings can be interpreted as evidence of functional perceptual behaviours used to regulate actions needed to ensure precise contact with the ball when shooting at goal. Further, adaptations of fixation patterns, varied between marking defender, goalkeeper, and ball, may provide functional postural orientation to facilitate a successful shot at goal.
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Affiliation(s)
| | - Keith Davids
- Centre for Sports Engineering Research, Sheffield Hallam University, Sheffield, UK
| | | | | | - Umberto Cesar Corrêa
- Escola de Educação Física e Esporte, Universidade de São Paulo, São Paulo, Brazil
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Das J, Morris R, Barry G, Celik Y, Godfrey A, McDonald C, Walker R, Vitorio R, Stuart S. Technological solution for the assessment and rehabilitation of visuo-cognition in Parkinson's disease. Expert Rev Med Devices 2023; 20:253-257. [PMID: 36927272 DOI: 10.1080/17434440.2023.2192869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Affiliation(s)
- Julia Das
- Department of Sport, Exercise and Rehabilitation, Northumbria University, Newcastle, UK
- Northumbria Healthcare NHS Foundation Trust, North Shields, UK
| | - Rosie Morris
- Department of Sport, Exercise and Rehabilitation, Northumbria University, Newcastle, UK
- Northumbria Healthcare NHS Foundation Trust, North Shields, UK
| | - Gill Barry
- Department of Sport, Exercise and Rehabilitation, Northumbria University, Newcastle, UK
| | - Yunus Celik
- Department of Computer and Inf006Frmation Science, Northumbria University, Newcastle upon Tyne, UK
| | - Alan Godfrey
- Department of Computer and Inf006Frmation Science, Northumbria University, Newcastle upon Tyne, UK
| | | | - Richard Walker
- Northumbria Healthcare NHS Foundation Trust, North Shields, UK
| | - Rodrigo Vitorio
- Department of Sport, Exercise and Rehabilitation, Northumbria University, Newcastle, UK
| | - Samuel Stuart
- Department of Sport, Exercise and Rehabilitation, Northumbria University, Newcastle, UK
- Northumbria Healthcare NHS Foundation Trust, North Shields, UK
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Sánchez-Tena MÁ, Rodríguez-Alonso X, Martinez-Perez C, Tornero-Aguilera JF, Clemente-Suárez VJ, Sanchez-Ramos C, Alvarez-Peregrina C. Comparison of Visual Skills between Federated and Non-Federated Athletes. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:1047. [PMID: 36673806 PMCID: PMC9859395 DOI: 10.3390/ijerph20021047] [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: 11/10/2022] [Revised: 12/30/2022] [Accepted: 01/02/2023] [Indexed: 06/17/2023]
Abstract
Background: To perform motor tasks, athletes must gather a considerable amount of visual information quickly. Evidence shows that visual skills vary between athletes and non-athletes, and impact athletic performance. However, there is no scientific evidence suggesting that there are any differences between the visual skills of federated and non-federated athletes. As such, the objective of this paper was to compare how visual skills influence the sports performance of federated and non-federated athletes, respectively. Methods: A visual examination has been conducted on a total of 52 athletes between 18 and 37 years of age. The COI-Sport Vision system screen (International Optometry Center, Madrid, Spain) was used to examine static visual acuity, dynamic visual acuity, contrast sensitivity, stereopsis, fixation disparity, visual memory, identification, anticipation time, peripheral awareness, and hand-eye coordination. Results: On average, federated athletes train more hours per day than non-federated athletes (1.4 ± 0.8) (p = 0.046). A significant correlation was observed between the average time of visual memory (β = −0.0683, p < 0.001), the average time of anticipation (β = 0.006, p = 0.009), the average time of peripheral awareness (β = 0.026, p = 0.002), hand-eye coordination (β = 0.028, p = 0.004), dynamic visual acuity (β = 0.055, p < 0.001), and the number of training hours. Conclusion: Results suggest that federated athletes are more concerned about their ocular health. Nonetheless, no differences were found in the oculomotor skills of both groups. Further investigation is required to consider each sport discipline individually.
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Affiliation(s)
- Miguel Ángel Sánchez-Tena
- Department of Optometry and Vision, Faculty of Optics and Optometry, Universidad Complutense de Madrid, 28037 Madrid, Spain
- ISEC LISBOA—Instituto Superior de Educação e Ciências, 1750-179 Lisbon, Portugal
| | - Xabier Rodríguez-Alonso
- Department of Optometry and Vision, Faculty of Optics and Optometry, Universidad Complutense de Madrid, 28037 Madrid, Spain
| | - Clara Martinez-Perez
- ISEC LISBOA—Instituto Superior de Educação e Ciências, 1750-179 Lisbon, Portugal
| | - José Francisco Tornero-Aguilera
- Faculty of Sports Sciences, Universidad Europea de Madrid, 28670 Madrid, Spain
- Studies Centre in Applied Combat (CESCA), 45007 Toledo, Spain
| | - Vicente J. Clemente-Suárez
- Faculty of Sports Sciences, Universidad Europea de Madrid, 28670 Madrid, Spain
- Studies Centre in Applied Combat (CESCA), 45007 Toledo, Spain
- Grupo de Investigación en Cultura, Educación y Sociedad, Universidad de la Costa, Barranquilla 00928-1345, Colombia
| | - Celia Sanchez-Ramos
- Department of Optometry and Vision, Faculty of Optics and Optometry, Universidad Complutense de Madrid, 28037 Madrid, Spain
- Grupo de Investigación en Visión y Oftalmología, Universidad Complutense de Madrid, Avda, Arcos de Jalón 118, 28037 Madrid, Spain
| | - Cristina Alvarez-Peregrina
- Department of Optometry and Vision, Faculty of Optics and Optometry, Universidad Complutense de Madrid, 28037 Madrid, Spain
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Hülsdünker T, Fontaine G, Mierau A. Stroboscopic vision prolongs visual motion perception in the central nervous system. Scand J Med Sci Sports 2023; 33:47-54. [PMID: 36111383 DOI: 10.1111/sms.14239] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 08/29/2022] [Accepted: 09/08/2022] [Indexed: 12/13/2022]
Abstract
Stroboscopic training has repeatedly been shown to improve visual and visuomotor performance in sports. Although recent research suggests that stroboscopic vision puts a training stimulus to the central nervous system, the underlying mechanism how it affects motion perception and processing in the brain is still unknown. Twenty-six participants performed a computer-based simple reaction test in response to a visual motion stimulus under normal (baseline) and stroboscopic conditions (5 Hz frequency, 40% duty cycle) (stroboscopic). A third condition under normal vision intermittently stopped the motion stimulus at the same frequency and duty cycle as in the stroboscopic condition. This condition controlled for the amount of visual motion information independent of the shutter glasses (screen shutter) and provided information about the effect of luminance changes induced by the stroboscopic eyewear. A 64-channel EEG was recorded to determine the amplitude and latency of the N2 component as a correlate of visual motion perception in the motion-sensitive visual area MT. Reaction time under stroboscopic conditions was significantly delayed when compared to both the baseline (p < 0.001) and screen shutter (p < 0.001) conditions. This was accompanied by a significantly prolonged N2 latency (p < 0.001) and lower N2 amplitude (p < 0.001) with the shutter glasses. There was no difference in reaction time or N2 amplitude/latency between the baseline and screen shutter condition (p ≥ 0.176). Stroboscopic eyewear delays the speed of visual motion perception and processing in the central nervous system and reduces the visuomotor reaction speed. This may form the neurophysiological basis for performance gains following stroboscopic training.
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Affiliation(s)
- Thorben Hülsdünker
- Department of Exercise and Sport Science, LUNEX International University of Health, Exercise and Sports, Differdange, Luxembourg.,Luxembourg Health & Sport Sciences Research Institute A.s.b.l., Differdange, Luxembourg
| | - Gaetan Fontaine
- Department of Exercise and Sport Science, LUNEX International University of Health, Exercise and Sports, Differdange, Luxembourg
| | - Andreas Mierau
- Department of Exercise and Sport Science, LUNEX International University of Health, Exercise and Sports, Differdange, Luxembourg.,Luxembourg Health & Sport Sciences Research Institute A.s.b.l., Differdange, Luxembourg.,German Sport University Cologne, Institute of Movement and Neurosciences, Cologne, Germany
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Ong J, Tavakkoli A, Strangman G, Zaman N, Kamran SA, Zhang Q, Ivkovic V, Lee AG. Neuro-ophthalmic Imaging and Visual Assessment Technology for Spaceflight Associated Neuro-ocular Syndrome (SANS). Surv Ophthalmol 2022; 67:1443-1466. [DOI: 10.1016/j.survophthal.2022.04.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 04/15/2022] [Accepted: 04/18/2022] [Indexed: 12/11/2022]
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Guest Editorial: Visual Function and Sports Performance. Optom Vis Sci 2021; 98:669-671. [PMID: 34328448 DOI: 10.1097/opx.0000000000001717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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