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Physical Capacity in Twins

Published online by Cambridge University Press:  01 August 2014

Lars-Magnus Engström  and
Siv Fischbein
Lars-Magnus Engström
Affiliation:
Department of Educational Research, School of Education, Stockholm, Sweden
Siv Fischbein*
Affiliation:
Department of Educational Research, School of Education, Stockholm, Sweden
*
Department of Educational and Psychological Research, School of Education, S-100 26 Stockholm, Sweden

Abstract

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A comparison of physical capacity, (measured by vital capacity, muscular strength and physical work capacity) in twin boys and controls failed to indicate significant differences. Intrapair correlations showed the MZ twins to be much more similar than the DZ twins in all the capacity measures. The correlations were lower, however, for both MZ and DZ twins for physical work capacity than for the other two capacity variables. When amount of physical exercise during leisure time is kept under control, the DZ twins tend to be more similar for physical work capacity or muscular strength, and the correlations tend to be of the same magnitude for MZ twins. Physical work capacity therefore appears, in this study, to be a more environmentally influenced variable than either vital capacity or muscular strength.

Type
Research Article
Information
Acta geneticae medicae et gemellologiae: twin research , Volume 26 , Issue 2 , April 1977 , pp. 159 - 165
Copyright
Copyright © The International Society for Twin Studies 1977

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