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"Medicina Sportiva" No.14 - 2008 The 15-th Sports Medicine Balkan Congress
SPORTS MEDICINE REHABILITATION SECTION


NEW APPROACHES IN MOVEMENT BIOMECHANICS –ACQUISITION AND ANALYSIS   SYSTEMS APPLYED IN SPORT AND REHABILITATION

Elena-Taina Avramescu, Lucian Gheorghe Gruionu, Ilona Ilinca
University of Craiova, Faculty of Physical Education and Sports, Romania
 
Introduction.  Physiopathological aspects related to growth, aging process and osteoarticular pathology, corelated with  the overtraining process in sport, are of most interest  for the health care. Awareness of these problems can help the developpment of new methods of evaluation  and  rehabilitation in human movement, with  clinical applications,  leading  to limitations of  social and economical costs in healthcare but also with impact in increasing performance in sport activities. At the present time, different methods in  approaching and evaluation  of movement  are presented in the literature, but the choices are unilateral, without  a common  approach based on interdisciplinary researches which would  help in  obtaining of better and quicker results.  For this reason, the present paper intends to present a new and  complex system of aquisition and  analysis of  motion data  with direct applications in sport and rehabilitation,  utilised within the  research programme  CEEX-M-C2-2358/2006 entitled “Individualized management of mobility recovery of patients with neurological and orthopedic pathology using new  methodologies for interdisciplinary research – MANMOBREC”  coordinated by the University of Craiova.
Material and methods. The present study  wishes  to present the use and interpretation of plantar pressure measurement using  the RSscan footscan systems.  For this purpose we will  briefly present the characteristics of this system, as a new and recent  method in sport and rehabilitation. A metaanalysis of present studies  regarding the relationships between gait biomechanics and prospective studies of trauma risk factors for the lower limb will be followed by presentation of our own results in using this device. We involved 20 patients (age range 5-10 years) suffering different neurological pathologies  (PF group) and a control group of 10 healthy persons (same age) with no complaints and
no pathology during examination (C group). The diagnosis of neurological pathologies  was made by history and physical examination. Measurements were made  on a 0,5 m footscan plate and calculations were made using the gait scientific software. Examinees were asked to walk  barefoot at a self-selected speed along a 8 m walkway. A Footscan pressure plate (RSscan International, Belgium, 0,5 m x 0,4 m) was mounted in the middle of the walkway. Distribution of pressure between the medial and lateral part of the forefoot was evaluated. Balance between the medial and lateral part of the forefoot was calculated using formula ((M1+M2)-(M3+M4+M5)). M is pressure under metatarsal joint 1 to 5.  The mean value of stance phase and balance for both groups were calculated. Measurement  were carried before and after rehabilitation or surgical treatment.
Results. This is a pilot study and it is planned to evaluate the treatment effect on walking in neurological pathologies by using the data measured by RSscan platform as an evaluation method of the progress.  Also the study contributes in gaining datas for this new method, as many universities work for that issue, available data in the literature being  still a few. Extension of  the research results were  made by elaboration a data base available for all potential users. Correction in some cases will be made by using the Foot Advisor software.
Conclusions. As walking Is a complex movement, the purpose of our  study was to evaluate the lower limb biomechanics  providing  a reliable and representative reference dataset  for plantar pressures  measured at a 350 Hz  frequenty  of data acquisition  underneath  weight-bearing anatomical areas  for  barefoot walking, offering a systematic method of collecting the information. We conclude that we attained this goal by  using a semi-automat procedure, baised on the geometry of the food and a qualitative interpretation of pressure distribution on the footprint, which allows a reliable and repeatable matching of sub-areas underneath the sole to anatomical structures of the foot.
Key words: motion analysis, Rsscan presure platform.





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