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2 Acta of Bioengineering and Biomechanics

2 2010

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Evaluation of muscular stabilization ability during a static workout

Staniszewski M., Urbaniak C., Staniszewski T.

Acta of Bioengineering and Biomechanics

2010

Vol. 12, no. 1

35-40

The aim of this research was to determine the moving and stabilizing functions of selected groups of muscles during the process of static workout. 15 students of the Academy of Physical Education were tested in non-competitive training. Muscular torques achieved during flexing and extending big limb joints were used as the determinant of force. Comparative analysis of torque values achieved in passive stabilization (with support) and muscular stabilization (without support) in elbow and knee joints was carried out. The value of the force applied to the passively stabilizing element in a given measurement during the flexion of elbow and the extension of knee joint was tested. The results of these tests allowed us to learn the value of muscular torques and – after statistical analysis – the relationship between them in particular functions.

Contralateral effects after power training of isolated muscles in women

Mastalerz A., Woźniak A., Urbaniak C., Lutosławska G.

Acta of Bioengineering and Biomechanics

2010

Vol. 12, no. 2

65-71

The purpose of that study was to determine the effect of training of one side of the body on changing the value of the muscle torques on trained and untrained sides. Twenty female students from the Warsaw University of Physical Education were subject to a four-week knee joint power training regimen on the specially designed stand. The same load but different rest time between lapses (120 vs. 30 seconds) were applied to both groups. The load was applied in a form of bending moment equal to 30% of MVC. Bilateral knee force was measured on the Biodex System 3 Pro under isometric conditions. Extension of the rest time between lapses resulted in a higher increase of the strength build-up. Power training causes a similar increase of force generating capacity in both groups for untrained leg. Therefore we have to conclude that there is no influence on homogeneous force improvement for untrained leg after power training.