COMPARISON OF UPPER LIMB REACTION SPEED BETWEEN YOUNG TABLE TENNIS AND BADMINTON ATHLETES USING THE LYMMIC ELECTRONIC SYSTEM

The aim of the present study was to compare the upper limb reaction time between young athletes (boys) of table tennis and badminton. Two groups of 14 table tennis and badminton athletes (a total of 28 athletes) with a mean age of 14±1.65 and mean involvement in these sports of 5±1.32 were the sample of the study. The visual stimulus tests used to record reaction times were as follows: a) left hand simple reaction time test, b) right hand simple reaction time test, c) left hand choice reaction time test, d) right hand choice reaction time test. The tools used for the measurements were a special light sensor and other technological means. ANOVA and Duncan’s multiple range test (p<0.05) were applied for statistical data processing. The analysis of the results showed no statistically significant differences in any of the 4 tests of the athletes. The findings and the way of measuring reaction speed could be used by the athletes’ coaches to enrich and improve the training process.  Article visualizations

Differences in Simple and Complex Reaction Time Test Score Amont College Rodeo Athletes

Various sports rely heavily on reaction time (RT) to produce high levels of performance, and as expected, difference in RT are present within and between sporting activities. The sport of rodeo is a high velocity/intensity sport that require athletes to reaction quickly to the movement(s) of uncooperative livestock. However, no previous studies have investigated the RT profile of rodeo athletes and the differences in RT between rodeo events. PURPOSE: The purpose of this investigation was to establish simply and complex RT norms for rodeo athletes and secondly, identify RT difference between rodeo events. METHODS: College rodeo athletes (n = 39) from a mid-sized university in the southwest region volunteered as participates in this study. The athletes were categorized according to their rodeo event: Steer Wrestling (n = 3), Roping (n = 15), Goat Tying (n = 6), Barrel Racing (n = 10), or Rough Stock (n = 5). All rodeo athletes completed two RT tests, simple RT test (sRT) and complex RT test (cRT), which yielded RT measures for average sRT response, average cRT response, total sRT, and total cRT. These RT metrics were utilized to establish rodeo RT norms and describe differences among rodeo events. Basic descriptive statistics were calculated to establish rodeo RT norms and secondly, a MANOVA was utilized to differentiate reaction time scores between rodeo events. RESULTS: There were no significant difference between Steer Wrestling (sRT Ave. Total 30.52±2.95; cRT Ave. Total 34.21±2.70), Ropers (sRT Ave. Total 32.29±4.25; cRT Ave. Total 35.70±4.56), Goat Tying (sRT Ave. Total 32.42±1.74l; cRT Ave. Total 38.3±5.47), Barrel Racing (sRT Ave. Total 32.77±3.45; cRT Ave. Total 35.29±2.46), and Rough Stock (sRT Ave. Total 32.12±3.45; cRT Ave. Total 35.32±4.14) for all reaction time measures. CONCLUSION: The results of the investigation indicated RT performance were similar among all rodeo events. These results additionally provide newly established RT norms for rodeo athletes that could be utilized as baseline target metrics for RT training

IMPULSE moment-by-moment test:An implicit measure of affective responses to audiovisual televised or digital advertisements

IMPULSE is a novel method for detecting affective responses to dynamic audiovisual content. It is an implicit reaction time test that is carried out while an audiovisual clip (e.g., a television commercial) plays in the background and measures feelings that are congruent or incongruent with the content of the clip. The results of three experiments illustrate the following four advantages of IMPULSE over self-reported and biometric methods: (1) being less susceptible to typical confounds associated with explicit measures, (2) being easier to measure deep-seated and often nonconscious emotions, (3) being better able to detect a broad range of emotions and feelings, and (4) being more efficient to implement as an online method.Published versio

PERBANDINGAN WHOLE BODY REACTION TIME DAN ANTICIPATION REACTION TIME ANTARA ATLET KATA DAN KUMITE CABANG OLAHRAGA KARATE

Karate merupakan olahraga prestasi yang sangat terkenal, terbagi oleh dua kelas kata dan kumite. Whole body reaction time test dan anticipation reaction time adalah kebutuhan dasar reaksi yang harus dimiliki seorang atlet karate, peneliti ingin membuktikan whole body reaction dan anticipation reaction time atlet kumite lebih baik dari atlet kata tersebut benar adanya atau tidak, dikarenakan berpengaruh terhadap program latihan yang diberikan kepada atlet. Tujuan penelitian ini untuk mengetahui perbandingan whole body reaction time dan anticipation reaction time atlet kumite lebih baik dari atlet kata. Metode penelitian yang digunakan adalah deskriptif komparatif. Sample penelitian berjumlah 10 atlet karate kata dan 10 atlet karate kumite dengan teknik pengambilan sampling menggunakan teknik sampling jenuh. Hasil penelitian ini dianalisis dengan bantuan spss ver.21 menunjukkan data whole body reaction time nilai f = 4,508 dan sig. 0,059 > 0,05 maka H0 diterima dan dapat disimpulkan tidak terdapat perbedaan hasil kecepatan whole body reaction time test dengan atlet kata dan kumite cabang olahraga karate, sedangkan data anticipation reaction time nilai f = 1,787 dan sig. 0,198 > 0,05 maka H0 diterima dan dapat disimpulkan tidak terdapat perbedaan hasil kecepatan anticipation reaction time test dengan atlet kata dan kumite cabang olahraga karate. ----------- Karate is a famous sport, which is divided into two classes, kata and kumite. Whole body reaction time test and anticipation reaction time are the basic reactions requirement, which should be possessed by a karate athlete. Regarding this, the researcher wants to prove whether it is true that the whole body reaction and anticipation reaction time of kumite athlete are better than kata athlete because those two reactions will affect the exercise program, given to the athlete. This research aims at finding out whether the comparison of whole body reaction time and anticipation reaction time of kumite athletes are better than kata athletes. The research method employed in this research was descriptive comparative. The samples involved in this research were 10 kata karate athletes and 10 kumite karate athletes. Meanwhile, the sampling technique used in this research was total population sampling. The result of this research was analyzed by using spss ver.21, which showed that the f value of whole body reaction time = ,508 and sig. 0,059 > 0,05. This result indicated that H0 was accepted and it could be concluded that there were no speed differences in anticipation reaction time test between kata and kumite athletes in karate. The f value of Anticipation reaction time f = 1,787 and sig. 0,198 > 0,05. This result indicated that H0 was accepted and it could be concluded that there were no speed differences in Anticipation Reaction Time test between kata and kumite athletes in karat

Reaction Time under Different Stimulus Conditions

For military purposes it was desired to know the relation between two types of reaction time tests. These tests were: (1) a simple reaction time test of the usual type, (2) a clock reaction time test in which the subject attempted to stop the moving hand of a clock at a certain predesignated point on the face, by pressing a standard telegraph key. Seashore, Buxton, and McCollom (1940) have reported that certain factors corresponding to motor skills have been isolated in terms of qualitative similarity in the pattern of action, including perceptual activity, involved in various tests rather than to anatomical units such as the dominant sense-field, or even the musculature employed. Seashore, Starmann, Kendall, and Helmick (1941) found that both simple and discriminative reaction times for visual and auditory stimuli are included in a group factor of speeds of single reactions. The same authors, however, warn against extending this factor to include other kinds of reaction time without experimental verification

Using the Five-Choice Serial Reaction Time Test (5CSRTT) to Assess the Behavioral Impact of Chronic SERCA Activation in Mice

Calcium (Ca2+) is a critical ionic messenger implicated in a wide variety of cellular processes including gene transcription, muscle contraction, and neurotransmitter release. A Ca2+-handling player of particular interest is the sarco-endoplasmic reticulum Ca2+ ATPase (SERCA), an intracellular regulator of Ca2+ homeostasis that functions by sequestering Ca2+ into the endoplasmic reticulum (ER). Indeed, previous research has implicated dysfunction of SERCA regulation as a contributor to neurodegenerative diseases such as Alzheimer’s disease and neurodevelopmental disorders including Autism-spectrum disorder (ASD). In the current study, we sought to investigate how chronic pharmacological activation of SERCA may affect executive functioning in mice. Mice of both sexes were chronically administered the small allosteric SERCA activator CDN1163 and were then subjected to behavioral testing by use of the five-choice serial reaction time test (5CSRTT), a learned task that can be used to assess behaviors including attention and impulsivity. The results of this study contribute to our ongoing investigations into the behavioral and neurobiological mechanisms implicating SERCA in the underlying mechanisms of complex neurodegenerative and neurodevelopmental disorders.https://ecommons.udayton.edu/stander_posters/4051/thumbnail.jp

Pre-pandemic cognitive function and COVID-19 mortality:Prospective cohort study

Poorer performance on standard tests of pre-morbid cognitive function is related to an elevated risk of death from lower respiratory tract infections but the link with coronavirus (COVID‑19) mortality is untested. Participants in UK Biobank, aged 40 to 69 years at study induction (2006–10), were administered a reaction time test, an indicator of information processing speed, and also had their verbal-numeric reasoning assessed. Between April 1st and September 23rd 2020 there were 388 registry-confirmed deaths (138 women) ascribed to COVID-19 in 494,932 individuals (269,602 women) with a reaction time test result, and 125 such deaths (38 women) in the subgroup of 180,198 people (97,794 women) with data on verbal-numeric reasoning. In analyses adjusted for age, sex, and ethnicity, a one standard deviation slower reaction time was related to a higher rate of death from COVID-19 (hazard ratio; 95% confidence interval: 1.18; 1.09, 1.28), as was a one standard deviation disadvantage on the verbal-numeric reasoning test (1.32; 1.09, 1.59). While there was some attenuation in these relationships after adjustment for additional covariates which included socio-economic status and lifestyle factors, the two pre-pandemic indicators of cognitive function continued to be related to COVID-19 mortality

The Effects Of Cognitively Engaging Physical Activity On The Executive Function Of Sixth Graders

This purpose of this study was to examine the effects of cognitively engaging exercise, aerobic exercise, and resting conditions on the executive function of 6th graders. Four conditions were tested: cognitively engaging exercise, repetitive aerobic exercise, cognitively engaging rest, and rest. Executive function was measured by pre and post Stroop tests, which is a test of reaction time and inhibition. Results showed no significant differences between conditions in the choice reaction time test, however the cognitively engaging exercise was significantly different from all other conditions on the Stroop test

Evaluation of Reaction Time on Karate Athletes UKM Syiah Kuala University

The  purpose  of  the study. Reaction time is a determining factor in sports, especially in martial arts. The purpose of this study is to evaluate the reaction time of UKM Karate athletes at Syiah Kuala University. Materials and methods. The approach in this study uses a quantitative approach. The sampling technique used purposive sampling, which means this technique is used to achieve certain goals. The samples in this study were athletes from UKM karate at Syiah Kuala University. The data collection technique was carried out by using the whole body reaction test to measure the reaction time of the athlete's arms and legs. Results. results of the research in the form of a whole body reaction test, the results using the formula for the average value and the total percentage can be concluded: (1) The arm reaction time test with the total average value for male athletes is 0.169 seconds and female athletes are 0.173, and the highest percentage is in the very good category, amounting to 87% for male and female athletes, 75% in the very good category and (2) the limb reaction time test has an average value of 0.269 seconds for male athletes and female athletes of 0.361 seconds, with the highest percentage value amounted to 100% in the good category for male athletes and for female athletes it was in the sufficient category with a percentage of 50%. Conclusions. the analysis show that most athletes have been able to maintain and increase reaction time well, to be able to improve and maintain it, regular and continuous training is neede

Physical and performance correlates of agility in tennis players

The purpose of this study was to evaluate the relationships of body mass index (BMI), years of sport-specific training, power, and reaction time with simple agility measured in tennis players. Thirty participants were recruited from local tennis teams and clubs in Ithaca, NY. Participants performed an Agility T-Test, a 505 Agility Test, a Vertical Jump Test and a Reaction Time Test in the Biomechanics Lab at Ithaca College. Multiple regression analysis revealed that BMI, years of training, PPO and reaction time best predicted agility time for both the 505 Agility Test (R2 = 0.48) and Agility T-Test (R2 = 0.64)