Laterality of handgrip strength: age- and physical training–related changes in Lithuanian schoolchildren and conscripts
Article first published online: 22 MAY 2013
© 2013 New York Academy of Sciences.
Annals of the New York Academy of Sciences
Volume 1288, The Evolution of Human Handedness pages 124–134, June 2013
How to Cite
Tutkuviene, J. and Schiefenhövel, W. (2013), Laterality of handgrip strength: age- and physical training–related changes in Lithuanian schoolchildren and conscripts. Annals of the New York Academy of Sciences, 1288: 124–134. doi: 10.1111/nyas.12126
- Issue published online: 6 JUN 2013
- Article first published online: 22 MAY 2013
- handgrip strength;
- laterality and asymmetry;
- age changes;
- physical training
Laterality in handgrip strength was assessed by analyzing dynamometric data of the right and left hand in three samples of Lithuanian boys and girls aged 7–20 years. In addition, the influence of general physical training on the laterality of handgrip strength was explored in a sample of conscripts. A negative secular trend in handgrip strength of schoolchildren has been detected since 1965, and with increasing age, right-handedness has become more pronounced. Children that were ambidextrous (by grip strength) showed negative deviations in physical status more often than their right- or left-handed peers. During one year of physical training, the conscripts had a larger increase in grip strength of the left than in the right hand, and a marked shift in handgrip laterality toward left-handed and ambidextrous individuals was observed. The different impact of schooling and physical training on handgrip strength laterality might partly explain variations in the prevalence of handedness in different societies with divergent cultures and lifestyles (e.g., more or less sedentary).