期刊名称：Research in Physical Education, Sport and Health
印刷版ISSN：1857-8152
出版年度：2018
卷号：7
期号：2
页码：1-6
出版社：Faculty of Physical Culture, Skopje
摘要：The explosive power of the lower extremities is a very important feature in many sports activities that
require the usage of maximum muscle strength, and is most often manifested in vertical jumps. During the
performance of vertical jumps, leg muscles, the so-called extensors, are activated, and play a role in
maintaining the proper arch of the foot. In this regard, the aim of this study is to determine the differences
in the explosive leg power among the young school-age male children, with or without flat feet condition.
The sample consisted of 48 students with an average age of 11. The following tests are used for the
evaluation of explosive leg power: squat-jumps, squat-jumps with preparation, squat-jumps with
preparation and arm swing. The plantography was used to evaluate the collapse of the arch, with the
interpretation of the plantographic patterns using the method devised by Russian authors. The applied Ttest
results have shown that, statistically, students with flat feet have significantly lower results on all three
tests; in other words, they scored lower values for the explosive power of the leg muscles. Considering the
results of various studies that support the confirmation and the rejection of the claims according to which
a normal arched foot has an impact on explosive leg power, it could be concluded that new research needs
to be conducted in which the participants should be equalized in certain morphological parameters such
as height and body weight. In addition, participants should be equalized in active participation in sports
as one of the possible factors affecting the activation, as well as muscle strength, when performing tests for
the assessment of explosive leg power.
