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Open Access research with a European policy impact...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by Strathclyde researchers, including by researchers from the European Policies Research Centre (EPRC).

EPRC is a leading institute in Europe for comparative research on public policy, with a particular focus on regional development policies. Spanning 30 European countries, EPRC research programmes have a strong emphasis on applied research and knowledge exchange, including the provision of policy advice to EU institutions and national and sub-national government authorities throughout Europe.

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Is the coactivation of biceps femoris during isometric knee extension affected by adiposity in healthy young humans?

De Vito, G. and McHugh, D. and Macaluso, A. and Riches, P.E. (2003) Is the coactivation of biceps femoris during isometric knee extension affected by adiposity in healthy young humans? Journal of Electro - myography and Kinesiology, 13 (5). pp. 425-431. ISSN 1050-6411

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This study aimed to verify if the level of biceps femoris antagonist activity measured during isometric knee extension was affected by the individual degree of adiposity in 14 young healthy subjects of both genders aged between 18 and 24. Surface EMG signals were recorded from the biceps femoris muscle of the dominant leg during isometric knee extension at three levels of voluntary contraction: maximum (MVC), 80% MVC and 200 N, respectively. In addition, whole-body percentage of fat, volume of the thigh and skinfold thickness below the electrodes were achieved. Biceps femoris coactivation values were: 28.5±17.9%, 30.9±17.7% and 25.3±17.5% for MVC, 80% MVC and 200N trials, respectively (NS). Neither the whole-body percentage of fat nor the skinfold thickness influenced percentage coactivation, irrespective of the intensity of contraction. However, an increase in the whole-body percentage of fat showed a tendency to augment the biceps femoris coactivation (PI=0.079; PII=0.575). No differences in coactivation were observed between genders. In addition, the duration of contraction did not affect the level of coactivation.