Relation of Handedness with Season of Birth of Professional Baseball Players Revisited

Abel, Ernest L.; Krüger, Michael

doi:10.2466/pms.98.1.44-46

Cited by 13 publications

(12 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In other studies, more left-handers were found among children born in March-July (29,30,51), but in other studies in winter (49,50,52). In yet other studies, no effect of season was detected (31,(53)(54)(55). In the UK biobank, we observed that birthweight varied with season, with a pattern that was similar in males and females: the highest average birthweight was in September-October and lowest in February ( Figure S6 ) (56).…”

Section: Environmental Effectssupporting

confidence: 43%

“…Among the early life factors that have been studied for associations with hand preference are the month of birth (29)(30)(31), being part of a multiple birth (32)(33)(34)(35), birthweight (11,15,36), breastfeeding (37), and maternal smoking (38,39). Effects of birthweight and multiple birth seem generally consistent throughout the literature; for example a recent study of two datasets of triplets, each numbering roughly 1000 participants, showed that lower birthweight was associated with non-right handedness (35).…”

Section: Introductionmentioning

confidence: 88%

“…Among the early life factors that have been studied for associations with hand preference are the month of birth (Abel and Kruger, 2004;Martin and Jones, 1999;Rogerson, 1994), being part of a multiple birth (Davis and Annett, 1994;Ellis et al, 1988;Heikkila et al, 2015), birthweight (Hay and Howie, 1980;Medland et al, 2009;Searleman et al, 1989), breastfeeding (Denny, 2012), and maternal smoking (Dragovic et al, 2013;Olsen, 1995). While small effects of birthweight and multiple birth seem generally consistent throughout the literature (lower birthweight and twinning associated with non-right handedness), other effects remain equivocal.…”

Section: Introductionmentioning

confidence: 96%

See 2 more Smart Citations

A large-scale population study of early life factors influencing left-handedness

Kovel

Carrión-Castillo

Francks

2018

Preprint

View full text Add to dashboard Cite

Running Title: Handedness and early life factors in the UK Biobank AbstractHand preference is a conspicuous variation in human behaviour, with a worldwide proportion of around 90% of people preferring to use the right hand for many tasks, and 10% the left hand. As the developmental foundations of hand preference occur in utero, with further establishment within the first two years of life, prenatal and early-life factors are likely to play a role. Various, often related, factors have been studied in the past, but often in small samples, or samples with biased selection schemes. We used the large, general population cohort of the UK biobank (~500,000 participants) to study possible relations between early life factors and adult hand preference. The probability of being left-handed was affected by the year and location of birth, birthweight, being part of a multiple birth, season of birth, breastfeeding, as well as sex, with each effect remaining significant after accounting for all others. Maternal smoking showed no association with handedness. Analysis of genome-wide polymorphism data indicated a tentative genetic correlation between handedness and birth-weight, which was opposite to their overall phenotypic correlation. However, the total effect on handedness of all these factors was very small. Therefore other, unknown effects must be involved, including possible environmental factors, and/or random developmental variation with respect to the left-right formation of the embryonic brain.

show abstract

Section: Environmental Effectssupporting

confidence: 43%

Section: Introductionmentioning

confidence: 88%

Section: Introductionmentioning

confidence: 96%

See 1 more Smart Citation

A large-scale population study of early life factors influencing left-handedness

Kovel

Carrión-Castillo

Francks

2018

Preprint

View full text Add to dashboard Cite

show abstract

“…Lateralization is correlated with high performance in some sports branches in which require high competition such as handball, fencing, ice hockey, baseball and tennis (Harris, 2010;Puterman et al, 2010;Loffing et al, 2010). Depending on the sports and position in the game, hand preference may provide advantage or disadvantage in the competition in some sports branches (Abel and Kruger, 2004). In some fast and quick sports such as handball, tennis and fencing where making quick decisions is important, the players who use their left hands while playing are advantageous (Lawler and Lawler, 2011) because the habit of left-handed players' predicting the move of their opponents is higher than right-handed players (Loffing et al, 2012b).…”

Section: Introductionmentioning

confidence: 99%

2D: 4D, Lateralization and Strength in Handball Players

Eler¹,

Eler²

2018

JETS

View full text Add to dashboard Cite

Lateralization, which is also known as hand preference, and 2D:4D finger ratio is a sign of prenatal testosterone and known to be associated with strength. The aim of this study is to investigate the relationship between 2D: 4D, lateralization and hand grip strength in relation to hand and forearm that are thought to be effective in handball in elite handball players. 67 female and 67 male elite players participated in this study. The height, weight, body-mass index and hand preference of these athletes have been identified and 2D: 4D finger measurements and hand grip strength tests were performed. When identifying the preferences regarding lateralization, the hand distribution preference was determined by the Oldfield questionnaire and evaluated using the Geschwind score. After photocopy images of the two hands of the athletes were taken, their finger lengths were measured Hand grip strength was determined by a Jamar hydraulic dynamometer. Strong correlation was found especially between 2D: 4D and dominant hand grip strength in male and female elite handball players. The ratio of left-handedness due to the positions of players during the game among male and female athletes has been found to be higher than that of the general population. With regard to gender, 2D: 4D was found to be lower in males than females but hand grip was found to be higher in males than females. Besides, a significant correlation between height and BMI with 2D:4D, sport age, height, body weight and hand grip strength was found. This study emphasizes the importance of 2D: 4D, handgrip strength and hand preference in handball.

show abstract

“…[ 25 , 37 ]). By contrast, quite a few studies [ 38 - 40 ], including some that have re-examined previously published results (e.g. [ 41 ]), failed to confirm the pathogenic effect of season of birth on atypical hand dominance.…”

Section: Discussionmentioning

confidence: 94%

Season of birth and handedness in Serbian high school students

et al. 2008

View full text Add to dashboard Cite

BackgroundAlthough behavioural dominance of the right hand in humans is likely to be under genetic control, departures from this population norm, i.e. left- or non-right-handedness, are believed to be influenced by environmental factors. Among many such environmental factors including, for example, low birth weight, testosterone level, and maternal age at birth, season of birth has occasionally been investigated. The overall empirical evidence for the season of birth effect is mixed.MethodsWe have investigated the effect of season of birth in an epidemiologically robust sample of randomly selected young people (n = 977), all born in the same year. A Kolmogorov-Smirnov type statistical test was used to determine season of birth.ResultsNeither the right-handed nor the non-right-handed groups demonstrated birth asymmetry relative to the normal population birth distribution. There was no between-group difference in the seasonal distribution of birth when comparing the right-handed to the non-right-handed groups.ConclusionThe present study failed to provide support for a season of birth effect on atypical lateralisation of handedness in humans.

show abstract

Relation of Handedness with Season of Birth of Professional Baseball Players Revisited

Cited by 13 publications

References 4 publications

A large-scale population study of early life factors influencing left-handedness

A large-scale population study of early life factors influencing left-handedness

2D: 4D, Lateralization and Strength in Handball Players

Season of birth and handedness in Serbian high school students

Contact Info

Product

Resources

About