Hair Whorl Direction: The Association with Handedness, Footedness, and Eyedness

Çetkin, Murat; Bayko, Selin; Kutoğlu, Tunç

doi:10.1080/87565641.2019.1700419

Cited by 5 publications

(4 citation statements)

References 56 publications

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“…The distribution of handedness classification in our group was close to that found in other regional studies. In studies from Turkey (a Muslim-majority country), right-handedness ranged from 79.15% to 93.3% [ 3 , 5 , 22 ]. Little research has been performed on handedness distribution in Saudi Arabia, and one survey aimed at identifying left-handedness in dental trainees found the left-handed frequency to be 6.6%, not far from, the frequency found here using a validated scale [ 23 ].…”

Section: Discussionmentioning

confidence: 99%

Assessing the Relationship Between Religious Beliefs and Ethnicity and Handedness and Footedness

Muayqil,

Alhaluli,

Alzamil

et al. 2023

Cureus

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Objectives The objective of the study is to explore the correlation between handedness and footedness and various demographic factors, including sex, age, faith, ethnicity, and perceived social pressures on limb use, among Muslims and non-Muslims. Methods This is an analytical cross-sectional study conducted in Saudi Arabia from September 2020 to February 2021. This research involved healthy community members aged 18 and above. An electronic survey was administered to collect demographic information on age, sex, faith, ethnicity, and the perceived degree of social pressure favoring the use of the right hand. The Waterloo handedness questionnaire (WHQ-Ar) and Waterloo footedness questionnaire (WFQ-Ar) were utilized for the assessments. Results A total of 728 respondents completed the survey. The mean (SD) age was 34.54 (11.53). Among them, 454 (62.4%) were ethnically Arab, and 507 (69.64%) identified as Muslims. The mean (SD) WHQ-Ar and WFQ-Ar scores were 42 (31.6) and 10.51 (8.1), respectively, with higher scores indicating “right” preference. Older age was associated with higher scores (p = 0.01) and men with lower handedness scores (p = 0.003). Participants who did not perceive social pressure had significantly lower scores (p < 0.001). Footedness was associated with slightly lower scores in Muslims (p = 0.001). Conclusion The degree of pressure perceived to use a particular hand has a major influence on handedness scores in Muslims and non-Muslims alike; this was true even when comparing populations with different levels of permissiveness to specific hand use due to varying religious or cultural backgrounds. Social pressure, regardless of routine religious practices, is more likely to influence handedness scores. Age and sex influence the scores similar to international reports, and footedness appears less likely to fall under the influence of cultural pressures.

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Section: Discussionmentioning

confidence: 99%

Assessing the Relationship Between Religious Beliefs and Ethnicity and Handedness and Footedness

Muayqil,

Alhaluli,

Alzamil

et al. 2023

Cureus

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“…Footedness, which in the context of the foot is comparable to handedness [2], is most usually associated with a preference for one foot over another when participating in foot-related sports. Footedness, handedness, eariness, and eyedness laterality preferences have been linked in studies on motor behavior and neuropsychology [3][4][5]. Earlier studies have shown a correlation between hand or foot preferences and various brain asymmetries, including linguistic organization, affective perception, and visuospatial abilities [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Cross-Cultural Adaptation of the Arabic Version of the Waterloo Footedness Questionnaire-Revised to Assess Footedness in Arabic-Speaking Adults

Aldaihan

2023

Cureus

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Purpose: The goal of this research is to translate and analyze the psychometric properties of the Arabic version of the Waterloo Footedness Questionnaire-Revised (WFQ-R). Materials and methods: Two native Arabic speakers created separate forward translations, which were then merged. Two different multilingual translators were used to translate it back into English from the synthetic version. Experts were gathered for a discussion on how to improve the localization and adaptation processes. A group of specialists was convened to analyze the localization and modification procedures. We now have the Arabic version of the WFQ-R which is "WFQ-R-Ar". Two hundred and ninety Arabic-speaking adults over the age of 18 were surveyed to evaluate the WHQ-R-Ar's characteristics (internal consistency, test-retest reliability, and construct validity). Results: The WFQ-R-Ar had no collisions with the ground or the sky. The factor analysis showed that the construct validity of the WFQ-R-Ar was dependent on a single factor. The WFQ-R-Ar also has excellent internal consistency, with a Cronbach's alpha of 0.93. The reliability of the examinations was examined, and it was found to have an intraclass correlation value of 0.94. Conclusion: The WFQ-R-Ar may be relied on to provide accurate results when used to evaluate footedness in Arabic-speaking society.

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“…Motor lateralization was also related to neural control, explained by a theory called “dynamic dominance of motor lateralization.” According to this theory, the left hemisphere/right arm is specialized for coordination while the right hemisphere/left arm specialized in the stabilization of the movement [ 19 ]. This specification may be also valid for the legs as there was a significant association between handedness and footedness dominance [ 20 – 22 ]. As stated above, motor lateralization should play an important role in soccer as the dominant leg performs most of the skills more accurately and powerful than the nondominant one [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

Participation of Soccer Training Improves Lower Limb Coordination and Decreases Motor Lateralization

Akpinar

2022

BioMed Research International

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Athletes, who display less lateralization, are considered to be more successful in their sports. Therefore, it is important to test the lateralization profiles of the athletes to determine future prospects. Soccer is one of the sports where lateralization plays an important role because performing the passes and kicks with either foot may increase the success rate. Improved lower limb coordination is also very essential to perform the soccer skills more efficiently. Thus, the purpose of this study was to investigate the motor lateralization profiles of youth soccer players and to compare the same lateralization to non-athletes. A total of 28 healthy youth (14 soccer players) aged between 14 and 16 years voluntarily participated in this study. All participants were right-footed and were asked to hit the targets with their either foot maintaining accuracy in a custom-made virtual reality interface. Final position error (FPE) and foot path deviation from linearity (FPDL) were calculated to test motor lateralization for each foot and group. Two-way Mixed Model ANOVA was conducted for each dependent variable. Results indicated significant differences for FPDL between groups, while there were no significant differences between groups and within feet for FPE. Nonathletes had significantly higher FPDL with their nondominant foot compared to their dominant foot, which was not observed among soccer players. Overall, nonathletes’ movements were more curvature path compared to soccer players, thus, can be considered as less coordinated. As soccer players did not show a difference between their feet on FPDL and performed better than nonathletes, soccer participation can improve lower limb coordination as well as alter motor performance and lateralization.

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Hair Whorl Direction: The Association with Handedness, Footedness, and Eyedness

Cited by 5 publications

References 56 publications

Assessing the Relationship Between Religious Beliefs and Ethnicity and Handedness and Footedness

Assessing the Relationship Between Religious Beliefs and Ethnicity and Handedness and Footedness

Cross-Cultural Adaptation of the Arabic Version of the Waterloo Footedness Questionnaire-Revised to Assess Footedness in Arabic-Speaking Adults

Participation of Soccer Training Improves Lower Limb Coordination and Decreases Motor Lateralization

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