Abstract
Using a simple cumulative model of heredity plus environment, based on intrapair differences observed in monozygous (MZ) and dizygous (DZ) twins, the relative contribution of heredity to the interindividual variance in several neuromuscular parameters was determined with 15 pairs of male (8 MZ and 7 DZ) and 14 pairs of female (7 MZ and 7 DZ) twins ranging in age from 10 to 14 years. The data disclosed that in boys the variability in maximal mechanical (anaerobic) power was 99.2% genetically determined under the environmental conditions of the study. The corresponding heritability estimate values for the patellar reflex time and reaction time were 97.5% and 85.7%, respectively. In girls the heritability estimates could not be computed, because the MZ twins seemed to show almost as much diversity as the DZ twins in all of the variables studied. On the basis of the obtained data it is suggested that the variation observed in maximal mechanical power, patellar reflex time and reaction time may be more susceptible to environmental modifications in girls than in boys.
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References
Giblett, E. R.: Genetic markers in human blood. Oxford: Blackwell 1969.
Hodes, R., Lanabee, M. G., German, W. U.: Human electromyogram in response to nerve stimulation and conduction velocity of motor axons; studies on normal and on injured peripheral nerves. Arch. Neurol. Psychiat (Chic.)60, 340–365 (1948).
Holzinger, K. J.: The relative effect of nature and nurture influences on twin differences. J. Educ. Psychol.54, 231–237 (1929).
Klissouras, V.: Heritability of adaptive variation. J. appl. Physiol.31 (3), 338–341 (1971).
Komi, P. V.: Measurement of the force-velocity relationship in human muscle under concentric and eccentric contractions. IIIrd Int. Seminar on Biomechanics, Rome, September 21–October 1, 1971.
Komi, P. V., Buskirk, E. R.: Reproducibility of electromyographic measurements with inserted wire electrodes and surface electrodes. Electromyography10 (4), 351–367 (1970).
Kroll, W.: Patellar reflex time and reflex latency under jendrassik and crossed extensor facilitation. Amer. J. phys. Med.41 (6), 292–301 (1968).
Margaria, R., Aghemo, P., Rovelli, E.: Measurement of muscular power (anaerobic) in man. J. appl. Physiol.21 (5), 1661–1664 (1966).
Partanen, J., Bruun, K., Markkanen, T.: Inheritance of drinking behaviour, Publ. No. 14, The Finnish Foundation for Alcohol Studies, Helsinki 1966, 159 pp.
Race, R. R., Sanger, R.: Blood groups in man, 5th ed., Oxford: Blackwell 1968.
Rusko, H., Karvinen, E.: Effect of age on measurement of aerobic power. Satellite Symposium of the XXV Congress of Physiological Sciences, Prague, August 3 to 5, 1971.
Siegel, S.: Nonparametric statistics for the behavioral sciences. New York-Toronto-London: McGraw-Hill 1956.
Simonson, E.: Physiology of work capacity and fatigue, p. 402. Springfield/Illinois: Charles Thomas 1971.
Tipton, C. M., Karpovich, P. V.: Exercise and the patellar reflex. J. appl. Physiol.21 (1), 15–18 (1966).
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This study was supported by research grants from the Ministery of Education of Finland (8551/79/70) and the Medical Research Council of Canada (MA-3905).
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Komi, P.V., Klissouras, V. & Karvinen, E. Genetic variation in neuromuscular performance. Int. Z. Angew. Physiol. Einschl. Arbeitsphysiol. 31, 289–304 (1973). https://doi.org/10.1007/BF00693714
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DOI: https://doi.org/10.1007/BF00693714