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1 Zeszyty Naukowe Katedry Mechaniki Stosowanej / Politechnika Śląska

1 2006

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Influence of stretching exercises on viscoelastic charactenstics in control of stable standing posture

Bacik B., Plewa M., Sulicz E., Sobota G.

Zeszyty Naukowe Katedry Mechaniki Stosowanej / Politechnika Śląska

2006

z. 26

25-28

The model of control of body sway movements in quiet standing proposed by Winter (1998) predicts the role of passive control resulting from stiffness of ankle joint muscles. The objective of the present study was to evaluate if exercises of muscle contract-stretch type performed in particular joints of lower extremities and lumbo-pelvic-hip region would result in change of postural stiffness and of the remaining characteristics of viscoelastic model in control of quiet standing. The study group consisted of 14 men. The subjects were performing stretching exercises affecting the muscles of ankle, knee and hip joints as well as lumbo-pelvic-hip complex. Exercise sessions were preceded by 10-second stabilographic measurements in quiet standing with eyes closed. Out of all evaluated parameters only postural stiffness changed considerably and only after the stretching of lumbo-pelvic-hip complex.