Displacement of center of pressure on the support and changes of the joint angles of the lower extremity at squatting
Khorievin VI, Horkovenko AV, Vereshchaka IV.
О.О. Bogomoletz Institute of Physiology, the NationalAcademy of Sciences of Ukraine, Kyiv, Ukraine
DOI: https://doi.org/10.15407/fz58.03.032
![](/images/cite.png)
Abstract
The relationship between movements and their postural adjustments was studied on the basis of the relation between the displacement of center of pressure (CoP) on grand force platform in the anterior-posterior direction and angular changes in the ankle and hip joints during squat in six healthy individuals. It was shown that during the fxation of the joint angles at the squatting the ankle joint more fexed than the hip joint when the CoP shifted forward, while the back displacement of the CoP resulted in more prominent changing of angular joint at the hip joint than at the ankle joint. A linear relationship between the displacement of CoP and the fexion angles more frequently observed at the ankle joint than at the hip, which may indicate that during squatting at the locked position of the joint angles the fexion of the ankle joint was determined mainly by the biomechanics of the skeleton,while in the hip joint biomechanical factors could largely combined with the central processes controlling posture.
Keywords:
biomechanics, lower extremity, joint angles,stabilography.
References
- Gurfinkel V.S., Kotz Y. M., Shik M. L. Regulation of human posture. M .: Nauka, 1965 . 256 p.
- Skvortsov D.V. Diagnosis of motor pathology by instrumental methods: gait analysis, stalometry. M .: MBN. 2007. 640 c.
- Shapkov Yu.T., Anisimova N.P., Gerasimenko Yu.P., Romanov S.P. Regulation of tracking movements. Leningrad: Science. 1988 .-- 276 p.
- Sinelnikov R. D. Atlas of human anatomy. M .: State. publishing house honey. literature. Volume 1. 1963. 477 p.
- Babinski J. De I'asynergie cerebelleuse. Rev. Neurol. Paris. 1899. 7. 806816. tsit. za Frank J.S., Earl M. Coordination of posture and movement.Phys. Therap. 1990. 70, N 12. P. 855-863.
CrossRef
PubMed
- Blaszczyk J.W., Hansen P.D., Lowe D.L. Evaluation of the postural stability in man: movement and posture interaction.Acta. Neurobiol. Exp. (Wars). 1993. 53, N 1. R.155-160.
- Dionisio V.C., Almeida G.L., Duarte M., Hirata R.P. Kinematic, kinetic and EMG patterns during downward squatting.J. Electromyogr. Kinesiol. 2008. 18, N 1. P. 134-143.
CrossRef
PubMed
- Doorenbosch C.A., Harlaar J., Roebroeck M.E., Lankhorst G.J. Two strategies of transferring from sit-to-stand; the activation of monoarticular and biarticular muscles.J. Biomech. 1994. 27, N 11. P. 1299-1307.
CrossRef
- Frank J.S., Earl M. Coordination of posture and movement.Phys. Therap. 1990. 70, N 12. P. 855-863.
CrossRef
PubMed
- Goodworth A.D., Peterka R.J. Infuence of stance width on frontal plane postural dynamics and coordination in human balance control.J. Neurophysiol. 2010. 104, N 2. P.1103-1118.
CrossRef
PubMed PubMedCentral
- Hase K., Sako M., Ushiba J., Chino N. Motor strategies for initiating downward-oriented movements during standing in adults.Exp. Brain Res. 2004. 158, N 1. P. 18-27.
CrossRef
PubMed
- Hess W.R. Teleokinetisches und ereismatisches Kraftesystem in Biomotorik.Helv. Physiol. Pharm. Acta 1943. 1.- C.62-.63.
- Blaszczyk J.W., Hansen P.D., Lowe D.L. Evaluation of the postural stability in man: movement and posture interaction.Acta. Neurobiol. Exp. (Wars). 1993. 53, N 1. R.155-160.
- Horak F.B., Nashner L.M. Central programming of postural movements: adaptation to altered support-surface confgurations. J. Neurophysiol. 1986. 55, N 6. P.1369-1381.
CrossRef
PubMed
- Hwang S., Kim Y., Kim Y. Lower extremity joint kinetics and lumbar curvature during squat and stoop lifting.BMC Musculoskelet. Disord. 2009. 10. 15 r.
CrossRef
PubMed PubMedCentral
- Morasso P. G., Schieppati M. Can muscle stiffness alone stabilize upright standing?.J. Neurophysiol. 1999. 82, N 3. P. 1622-1626.
CrossRef
PubMed
- Runge C.F., Shupert C.L., Horak F.B., Zajac F.E. Ankle and hip postural strategies defned by joint torque.Gait Posture.- 1999. 10, N 2. P. 161-170.
CrossRef
- Schoenfeld B. J. Squatting kinematics and kinetics and their application to exercise performance.J. Strength. Cond. Res. 2010. 24, N 12. P. 3497-3506.
CrossRef
PubMed
- Winter D. A., Patla A. E., Rietdyk S. Ishac, M. Ankle muscle stiffness in the control of balance during quiet standing.J. Neurophysiol. 2001. 85, N 3. R. 2630-2633.
CrossRef
PubMed
|