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How locomotor parameters adapt to gravity and body structure changes during gait development in children


, : How locomotor parameters adapt to gravity and body structure changes during gait development in children. Motor Control 3(2): 186-204

The principles of direct dynamics and oscillating systems have been used to study the development of gait parameters in children, with respect to their kinetic consequences on the oscillations of body center of mass (CM). In particular the equations established (a) a natural body frequency (NBF), a body parameter specific to oscillating movements which is invariant for adults and decreases with age for children, and (b) the amplitude ratio of CM to center-of-foot pressure (CP) oscillations as a parametric function of the step frequency, whose parameter is the NBF. This function was used to analyze the development of gait locomotors with respect to their kinetic effects on balance in the frontal plane. Five children were examined longitudinally during their first 5 years of independent walking (IW), and two cross-sectional groups between 5 and 7 years of IW were also considered. The results showed a shift toward the low end of step frequency bands as the NBF decreased along with invariances in the amplitudes of CM oscillation in both the frontal and sagittal planes, regardless of age and gait velocity. The biomechanical meaning of the NBF, of its decrease and of postural invariances associated with the decrease of the frequency, are discussed as well as how the programming of locomotor parameters adapts to changes in body structure during gait development.

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PMID: 10198149


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Goldman, S.M.; Barabino, G.A., 2016: Spatial Engineering of Osteochondral Tissue Constructs Through Microfluidically Directed Differentiation of Mesenchymal Stem Cells. The development of tissue engineered osteochondral units has been slowed by a number of technical hurdles associated with recapitulating their heterogeneous nature ex vivo. Subsequently, numerous approaches with respect to cell sourcing, scaffoldi...

Gondzik, M.; Sokal, Z., 1975: Malignant neoplasms of the urogenital system in patients with tuberculosis. Polski Przeglad Chirurgiczny 47(2a): 243-246

Schill, S.; Thabe, H., 2004: Differential therapy for the rheumatoid thumb. The thumb frequently is involved in rheumatoid arthritis and often is a source of significant functional loss, pain, and deformity. Surgical intervention in patients with rheumatoid arthritis of the thumb should be based on the degree of radiologi...

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Balaban A.T., 1988: Modelling of chemical structures by graphs and modelling of the latter by topological indexes. After a brief review of the chemical structure theory which models substances by their formulas, one shows that constitutional formulae of organic compounds correspond to graphs or multigraphs. A few simple graph invariants are defined ; it is sho...

Porot, M.; Girard, J., 1970: Use of amitriptyline in syrup form in the treatment of enuresis amitriptyline in children. Annales Medico-Psychologiques 128(5): 781-787

Gromala, T.; Oyelowo, T., 1990: An historical overview of foreign students in chiropractic: 1900-1988. Chiropractic History 10(1): 31-34

Weiss, R.A., 1990: Human immunodeficiency viruses. Bailliere's Clinical Haematology 3(1): 207-213

Breger Irving Arthur, 1955: Studies of carbonaceous materials by vacuum differential thermal analysis. Economic Geology and the Bulletin of the Society of Economic Geologists 50(1): 105

Ren, F.; Tang, R.; Zhang, X.; Madushi, W.Mihiranganee.; Luo, D.; Dang, Y.; Li, Z.; Wei, K.; Chen, G., 2016: Overexpression of MMP Family Members Functions as Prognostic Biomarker for Breast Cancer Patients: A Systematic Review and Meta-Analysis. Matrix metalloproteinases (MMPs) are regarded to be relevant to the prognosis of breast cancer. Numerous studies have confirmed the association between MMPs and tumor growth, invasion and metastasis in breast cancer. However, their prognostic valu...