scholarly journals Effect of Handedness and Footedness on Some Motoric Characteristics in Amateur Soccer Players

2019 ◽  
Vol 7 (12) ◽  
pp. 13
Author(s):  
Deniz Özge Yüceloğlu Keskin ◽  
Osman İmamoğlu ◽  
Menderes Kabadayı
Keyword(s):  
Reaction Time ◽  
Reaction Times ◽  
Hand Preference ◽  
Individual Characteristics ◽  
Soccer Players ◽  
Time Asymmetry ◽  
Left Hand ◽  
Significant Difference ◽  
The Right ◽  
Hands And Feet

The present study aims to compare the strength of right and left legs and reaction times of soccer players depending on their hand and foot preferences. The study included 92 volunteers chosen from amateur soccer players. The measurements conducted on the subjects were anthropometric characteristics, foot reaction times (sound, light) and right and left foot squat parameters. The t-test was used for statistical procedures. Among the amateur soccer players who participated in this study, it was found that 19.57% used left hand and 67.39% used right hand as preferred. Soccer players using both hands equally were found with a rate of 13.4%. In terms of foot preference, it was found that 22.83% of the participants used left foot and 43.48% of the participants used right foot as preferred. The soccer players using both feet equally was found as 33.70%. No significant difference was found between right handers and left handers in reaction time measurements when the soccer players were grouped by hand preference. When compared with left footed players (0.29 sec), only the right foot sound reaction time of right footed players was significantly shorter (0.21 sec) at p<. 05 level. Statistically significant correlation was found between soccer players’ hand and foot preference at a level of p< 0.01. Left footed players had significantly higher left leg mean squat (37.19 kg) when compared with right footed players (32.27 kg). No significant difference was found between right footed (35.36 kg) and left footed (33.98) subjects in terms of mean of right leg squat. Conclusion: According to the hand preference, the proportion of those who use equally two feet increased. Reaction times and force's squat of the dominant hands and feet were better. Training programs for soccer players planned according to individual characteristics including footedness may result in performance increase and decrease in injury as a result of reduced strength and reaction time asymmetry between legs and arms.

scholarly journals Effects of Congruency on Bereitschaftspotential While Performing a Bimanual Motor Task

2018 ◽  
Vol 9 (1) ◽  
pp. 63-79
Author(s):  
Meghan McGowan ◽  
Camille Hémond-Hill ◽  
Justine Nakazawa
Keyword(s):  
Reaction Time ◽  
Primary Motor Cortex ◽  
Brain Activity ◽  
Sensory Modality ◽  
Motor Task ◽  
Left Hand ◽  
Grand Average ◽  
Bimanual Task ◽  
Significant Difference ◽  
The Right

 The bereitschaftspotential (BP)—also known as the readiness potential—is a measure of brain activity that precedes voluntary movement by approximately one second in the supplementary motor area and the contralateral primary motor cortex. Motor task reaction time for bimanual task performance is affected by both the individual and the environment; however, it is unclear whether motor task reaction time (as measured via the BP) is significantly affected by congruency. A congruent motor task is an ipsilateral stimulus (e.g., a stimulus on the right is responded to by the right hand), and an incongruent task is a contralateral stimulus (e.g., a stimulus on the right is responded to by the left hand). Congruency is re-emerging as an important topic in motor learning as it may require different levels of cortical processing. The purpose of this study was to examine the effect of congruency on the BP. Participants were asked to complete the computer task, Keyboard Hero, where they pressed keys with both their left and right hands in response to discrete congruent and incongruent stimuli. A MUSE™  apparatus recorded brain activity 1000 ms prior to, and 1000 ms after each stimulus. Results from every participant for the incongruent and congruent trials were averaged and compared using a grand average waveform. Means of accuracy (how often participants pressed the key correctly) and BP for each condition were averaged and compared using a 95% Confidence Interval (CI). Across congruent and incongruent conditions, a non-significant difference (p > 0.05 ) was found in BP (p > 0.59 ), accuracy (p > 0.64 ), and BP within −200  ms to 200 ms (p > 0.31 ). BP and mean accuracy scores were not significantly different between congruent and incongruent conditions, which may be due to only minute differences in brain activity or due to the study’s design. Further research should analyze individual variations of the present study, such as stimulus location, differences in the responding limb, correctness of responses, and the sensory modality being tested

scholarly journals Does Performance of Speed-Accuracy Movements Depend on Gender and the Left or the Right Hand?

2018 ◽  
Vol 2 (77) ◽  
Author(s):  
Kristina Motiejūnaitė ◽  
Dalia Mickevičienė ◽  
Albertas Skurvydas ◽  
Diana Karanauskienė ◽  
Mantas Mickevičius
Keyword(s):  
Reaction Time ◽  
Movement Speed ◽  
Movement Trajectory ◽  
Dynamic Parameters ◽  
Left Hand ◽  
Right Hand ◽  
Significant Difference ◽  
Males And Females ◽  
The Right ◽  
Speed Accuracy

The aim of the study was to establish the differences in men and women’s performance of speed-accuracy movements with their left (LH) and right (RH) hands. The research participants were 24 healthy right-handed subjects: 12 males (aged 20.8 ± 1.1 years) and 12 females (aged 21.4 ± 1.0 years). The research was carried out in the Laboratory of Human Motor Control at the Lithuanian Academy of Physical Education (LAPE) applying the analyzer of dynamic parameters of human leg and arm movement (DPA-1; Patent No. 5251; 2005 08 25), which is used for the qualitative estimation of the dynamic parameters of one arm and leg target movement, two arms and legs coordinated and independent target movements, when the resistance power and target are coded with different programmable parameters. The task was performed with the right and then with the left hand (50 repetitions with each hand). The subjects had two tasks: a) to react as quickly as possible (simple task); b) to react as quickly as possible and to hit the target on a computer screen quickly and accurately (complicated task). We registered the maximal and mean movement speed, reaction time, movement trajectory and intraindividual variability of the right and the left hands. Conclusions. There was no significant difference in accuracy between female and male subjects, thought female subjects performed speed-accuracy task more slowly than men. Both males and females performed the speed-accuracy task with their right hand faster and more accurately than with their left hand. Performing movements with different hands the indices of reaction time did not differ significantly. Both males and females performed movements with their right and left hands with the same intraindividual variability.Keywords: movement control, reaction time, speed-accuracy task, right and left hand, gender. 

Effects of Certainty and Uncertainty of Stimulus-Response Correspondence on Auditory Reaction Times

1977 ◽  
Vol 45 (1) ◽  
pp. 311-316 ◽  
Author(s):  
Joseph S. Puleo ◽  
Paul E. Sheldon
Keyword(s):  
College Students ◽  
Reaction Time ◽  
Reaction Times ◽  
Complex Reaction ◽  
Left Hand ◽  
Stimulus Response ◽  
Auditory Cue ◽  
Male College ◽  
Initial Tendency ◽  
The Right

Complex reaction time (RT) was measured for a task in which a discriminative auditory cue designated whether the right or left hand was to be used in responding. Facilitation of monaural RT compared to binaural RT occurred on trials in which both (1) the ear stimulated corresponded to the hand specified for response and (2) each of 20 male college students had received a prior signal signifying that stimulus-response correspondence would occur on the trial. RT was slower for monaural than binaural input when the monaural stimulus was applied to the ear contralateral to the hand designated by the tonal cue regardless of a prior signal signifying that stimulus-response noncorrespondence would occur on the trial. These slower RTs were attributed to an inability of subjects to inhibit their initial tendency to react toward the source of stimulation.

Reaction Time of the Fingers with Responses Measured on a Typewriter Keyboard

1978 ◽  
Vol 47 (3) ◽  
pp. 863-867 ◽  
Author(s):  
V. Hayes ◽  
Gerald Halpin
Keyword(s):  
Reaction Time ◽  
Repeated Measures ◽  
Rank Order ◽  
Reaction Times ◽  
Left Hand ◽  
Repeated Measures Analysis ◽  
The Mean ◽  
The Right ◽  
Mechanical Timer ◽  
Mean Reaction Time

Reaction times on each of the eight fingers were obtained for 24 skilled typists using an electric typewriter and a mechanical timer. Repeated-measures analysis of variance indicated significant differences among the mean reaction times of the eight fingers. Scheffé's multiple-comparison procedure indicated that the mean reaction time of each finger differed from that of every other finger and that the mean reaction time of the fingers on the left hand was significantly slower than the mean reaction time of fingers on the right hand. The average inter-class correlation coefficient among the fingers was .92 which indicated rank-order of reaction times to be similar across fingers.

scholarly journals The Development a New Device to Measure of Audial and Visual Reaction Time in Hand and Foot (Validity and Reliability Study)

2019 ◽  
Vol 12 (4) ◽  
pp. 165
Author(s):  
Ozturk AGIRBAS ◽  
Eser AGGON ◽  
Recep OZ
Keyword(s):  
Reaction Time ◽  
Reaction Times ◽  
Repeated Measurements ◽  
T Test ◽  
Measurement Tool ◽  
Validity And Reliability ◽  
New Device ◽  
Significant Difference ◽  
Visual Reaction ◽  
Hands And Feet

The determining the reaction time is a widely used as an indicator in sportive performance and field of exercise physiology. The purpose of this study is to develop a new reaction times device (NRTD) to determine both hand and foot visual and auditory reaction times, which is practical and economical. In the developed system to be obtained are kept in a database which is all necessary the intervals between stimuli for the reaction variable and all records. The system consists of software loaded on a computer and buttons specially prepared for hands and feet. The buttons are designed for precise measurement. The software of the program is written with Visual Basic program. The program can be recorded different features separately for each subject in the database except the reaction times. Also the system metrics can be presentedas a report to the user. While comparisons were made with the Newtest 1000 reaction device to determine the validity of the tool we developed, repeated measurements were made on the same group each week to determine its reliability. Measurements were carried out on 52 male students studying in Erzincan University's School of Physical Education and Sports. The resulting data were examined in SPSS 22.0 statistical package program for Windows. Independent Student T-test was used to compare two devices; Paired Sample T-test was used to compare repeated measurements of NRTD. No significant difference was detected statistically between neither right nor left-hand visual reaction times conducted with the device we have developed and Newtest 1000, or the repeated measurement results which were conducted each week with NRTD. It was concluded that NRTD is valid and reliable to measure reaction time and is an ideal measurement tool to measure both hand and foot reaction times.

Examination of the Effects of Autogenic Training on the Reaction Time Performance of the National Badminton Athletes

2021 ◽  
Vol 15 (11) ◽  
pp. 3181-3184
Author(s):  
Dondu Ugurlu ◽  
Ismail Ilbak ◽  
Mehmet Akarsu
Keyword(s):  
Reaction Time ◽  
Reaction Times ◽  
Autogenic Training ◽  
Control Group ◽  
Left Hand ◽  
Auditory Reaction Time ◽  
The Mean ◽  
The Right ◽  
And Control ◽  
Experimental Group

Background: Although there is a consensus among researchers that autogenic training has positive effects on the psychological state of athletes, there have not been enough studies on its effects on physical performance yet. Therefore, the effects of autogenic training on physical performance is an important question that remains to be clarified. The fact that there is no research examining the effects of autogenic training on reaction time performance constitutes the original value of the study. Aim: The aim of the study is to examine the effects of autogenic training applied during 8 weeks on the visual and auditory reaction time performances of national badminton athletes. Methods: 15 male (experimental group=8 and control group=7) national badminton player between the ages of 18-23 residing in the province of Malatya participated in the study voluntarily. In addition to the training program, autogenic training was applied to the experimental group for 8 weeks, 3 days a week, after warming up. The control group continued their regular training. In order to determine the effects of the training, the pre-test and post-test was applied to the participants. SPSS 23 Package Program was used for the analysis of the data. The data were evaluated with the Mann-Whitney U test, one of the Non-Parametric tests. The significance level was taken as p<.05. Results: The mean age of the experimental group (N=8) was 19.88±1.81, the mean height was 173.75±4.10, and the mean body weight was 68.13±5.52. The mean age of the control group (N=7) was 19.72±1.80, the mean height was 175.72±7.87, and the mean body weight was 67.58±6.61.It was observed that there was no statistically significant difference between the right and left hand visual reaction times and the right and left hand auditory reaction times of the experimental and control groups (p>.05). Conclusion: As a result, autogenic training does not have a statistically significant effect on the visual and auditory reaction time of national badminton athletes. Keywords: Autogenic training, badminton, reaction time

scholarly journals Hand Preference and Performance in Basketball Tasks

2019 ◽  
Vol 16 (22) ◽  
pp. 4336 ◽  
Author(s):  
Emanuela Gualdi-Russo ◽  
Natascia Rinaldo ◽  
Alba Pasini ◽  
Luciana Zaccagni
Keyword(s):  
Professional Training ◽  
Factor Model ◽  
Hand Preference ◽  
Control Group ◽  
Basketball Players ◽  
Confirmatory Factor Analyses ◽  
Left Hand ◽  
Confirmatory Factor ◽  
And Performance ◽  
The Right

The aims of this study were to develop and validate an instrument to quantitatively assess the handedness of basketballers in basketball tasks (Basketball Handedness Inventory, BaHI) and to compare it with their handedness in daily activities by the Edinburgh Handedness Inventory (EHI). The participants were 111 basketballers and 40 controls. All subjects completed the EHI and only basketballers filled in the BaHI. To validate the BaHI, a voluntary subsample of basketballers repeated the BaHI. Exploratory and confirmatory factor analyses supported a two-factor model. Our results show that: (i) Handedness score (R) in daily actions did not differ between basketball players (R by EHI = 69.3 ± 44.6) and the control group (R by EHI = 64.5 ± 58.6); (ii) basketballers more frequently favored performing certain sport tasks with the left hand or mixed hands (as highlighted by R by BaHI = 50.1 ± 47.1), although their choice was primarily the right hand in everyday gestures; and (iii) this preference was especially true for athletes at the highest levels of performance (R by BaHI of A1 league = 38.6 ± 58.3) and for those playing in selected roles (point guard’s R = 29.4 ± 67.4). Our findings suggest that professional training induces handedness changes in basketball tasks. The BaHI provides a valid and reliable measure of the skilled hand in basketball. This will allow coaches to assess mastery of the ball according to the hand used by the athlete in the different tasks and roles.

scholarly journals Lateralization of attention in adults with ADHD: Evidence of pseudoneglect

2020 ◽  
Vol 63 (1) ◽  
Author(s):  
Bartosz Helfer ◽  
Stefanos Maltezos ◽  
Elizabeth Liddle ◽  
Jonna Kuntsi ◽  
Philip Asherson
Keyword(s):  
Reaction Time ◽  
Visual Field ◽  
Reaction Times ◽  
Study Participant ◽  
Reaction Time Task ◽  
Right Visual Field ◽  
Time Variability ◽  
Incentive Condition ◽  
Reaction Time Variability ◽  
The Right

Abstract Background. We investigated whether adults with attention-deficit/hyperactivity disorder (ADHD) show pseudoneglect—preferential allocation of attention to the left visual field (LVF) and a resulting slowing of mean reaction times (MRTs) in the right visual field (RVF), characteristic of neurotypical (NT) individuals —and whether lateralization of attention is modulated by presentation speed and incentives. Method. Fast Task, a four-choice reaction-time task where stimuli were presented in LVF or RVF, was used to investigate differences in MRT and reaction time variability (RTV) in adults with ADHD (n = 43) and NT adults (n = 46) between a slow/no-incentive and fast/incentive condition. In the lateralization analyses, pseudoneglect was assessed based on MRT, which was calculated separately for the LVF and RVF for each condition and each study participant. Results. Adults with ADHD had overall slower MRT and increased RTV relative to NT. MRT and RTV improved under the fast/incentive condition. Both groups showed RVF-slowing with no between-group or between-conditions differences in RVF-slowing. Conclusion. Adults with ADHD exhibited pseudoneglect, a NT pattern of lateralization of attention, which was not attenuated by presentation speed and incentives.

scholarly journals Hand Preference and Creativity of Papua University Student

2022 ◽  
Vol 8 (1) ◽  
pp. 257-262
Author(s):  
Vionita Putri ◽  
Elda Irma Jeanne Joice Kawulur ◽  
Febriza Dwiranti ◽  
Sabarita Sinuraya ◽  
Sita Ratnawati
Keyword(s):  
Hand Preference ◽  
University Student ◽  
Creative People ◽  
Left Hand ◽  
Adjective Check List ◽  
Left Handed ◽  
Males And Females ◽  
Papua Barat ◽  
The Right ◽  
Descriptive Method

Human has a preference to use their hands for various manual activities. Left-handed preference is people who tend to use their left hand to perform various manual activities, while right-handed people tend to use right-handed. Any researches show that the left-handed preference for more creativity was influenced by the dominant use of the right brain and bigger corpus callosum. The research aims to determine the percentage of left-handed preference and their creativity in Universitas Papua, Manokwari Papua Barat. The method used in this research is the descriptive method. Data collection used a questionnaire to evaluate individual hand preference using Handedness Questionnaire and to determine individual creativity using Adjective Check List. The percentage of left-handed people in UNIPA were 9.3% or lower than right-handed and higher than ambidextrous. Our study supports the statement about selection in handedness in the traditional society which showed a higher percentage of left-hander as advantages related to using hand intensively.  The percentage of left-handed males and females was almost equal and strongly left-handed was higher in females. The percentage of creative people was higher in left-handed, especially in males

Foot Performance of Right- and Left-Handers: A Question of Environmental Influence

1995 ◽  
Vol 80 (2) ◽  
pp. 671-674 ◽  
Author(s):  
Carl Gabbard ◽  
Susan Hart
Keyword(s):  
Environmental Influence ◽  
Hand Preference ◽  
Adequate Explanation ◽  
Driving Experience ◽  
Left Hand ◽  
Left Handed ◽  
Right Hand ◽  
Theoretical Perspectives ◽  
The Difference ◽  
The Right

Prior research has shown that right-handed adults perform better on a speed-tapping task with the right hand and right foot, while left-handers execute more rapidly with the left hand and right foot. Speculation is that environmental influence, most likely driving experience, may account for the right-foot bias. To examine this hypothesis further, 48 young right- and left-handed children were tested on a similar protocol. Analyses indicated no significant differences in foot performance within hand-preference groups. Since these findings do not complement reports for adults, factors such as experience or maturation might contribute to the difference. Were patterns similar, the effect of environmental influence would be assumed to be small. However, much more evidence is needed before an adequate explanation can be developed. The issue of possible environmental influence is discussed from various theoretical perspectives.

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