| ObjectiveWe have used a technique of the telemetering electromyography and the miniature pressure sensor to evaluate the clinical biomechanics test of the human walking brace(HWB) that we tested it creatively in our experiment. Try to run about a mechanism from the muscle dynamics and the human walking pressure to estimate the function and result of HWB.MethodsThis topic is a research report about HWB that we develop it by our independent innovation. Aim at this special subject: 1. Make use of all-powerful experiment machine of the WDT—10KN tiny machine control electronics to carry the pull-stretch mechanics experiment towards HWB, measure the effectively flexible scope that the elasticity strap take. 2. Dispend advanced biomechanics telemetering electromyography data analyze system to discuss the biomechanics function mechanism of using HWB. 3. Using the miniature pressure sensor that we developed by ourself and plantar pressure dynamic picture analysis system to pass the treatment effect of HWB.Results1. HWB is a double layer elasticity strap that gone to the foot from the waist. It establishes the assistance wreath form that is divided into a top and bottom two parts in the lap to take fixedly. It has belt ferrule ,foot ferrule , adjust wreath and link to constitute.2. The inner part of HWB is made by the two kinds of different materials. At the flexible stage of rubber bands (0~2.61±0.19kg) , the relationship of the load and the transformation is changed by direct proportion variety and its flexible mold is 0.53±0.04Mpa. So it is the clinical work stage of the elasticity strap. At the flexiblestage of the cotton textiles (2.6l±0.19kg~49.15± 1.82kg), the relationship of the load and the transformation is changed by the line variety. It is also the stage that the strength synthesis of the elasticity strap. HWB is such a pair of layers structure that can acquire twice valid motivity.3.The research result by our telemetering electromyography show, during the period of walking normally, the Rectus femoris of test-receiver is 32.34±2.49nV, HWB is 35.27±2.66nV, increasing 9%;the Vastus medialis of test-receiver is 94.08±2.91|iV, HWB is 109.58±2.47nV, increasing 16%;the Vastus lateralis of test-receiver is 77.74±2.21nV, HWB is 79.70±2.56nV, increasing 2%;the Biceps femoris of test-receiver is 72.76±2.15|iV, HWB is 93.49±3.87nV, increasing 29%;the Semitentinosus of test-receiver is 175.01±3.63(iV, HWB is 223.75±8.27nV, increasing 28%.During the period of walking normally, the Tibialis anterior of test-receiver islO2.8±O.93(iV, HWB is 138.95±4.99|iV, increasing 35%;the Peroneus longus of test-receiver is 103.46±2.02nV, HWB is 128.09±4.36nV, increasing 24%;the Gastrocnemius of test-receiver is I9.58±1.15|iV, HWB is 25.05±2.51nV, increasing 31%.4.The research result of normal test-receiver by our plantar pressure experiment show, The first Metarsal head is 13.08±5.18kg, the 2,3 Metarsal head is 7.97± 1.45kg, the 4,5 Metarsal head is 8.87± 1.65kg, the load of forefoot is 29.92kg, the account for 49% of weight.The load on midial bow of foot is 1.31±0.66kg, the load on lateral bow of foot is 3.87±0.9lkg, among them, the load on medial bow of foot is less than the latter, the load on the middle of foot is 5.18kg, is equal to 7% of weight.The load on heel is 26.81±4.12kg,is equal to 44% of weight, The load on the middle of foot and heel is 51%.The result of our test show, during the period of walking normally in the test-receiver ,the load on forefoot is 49% of weight, the load on the middle of foot and heel is 51% ,the result is closed by other scholars'.5.The load on forefoot is rised from 19.4 kg to 24.15kg between wearing HWB, increasing 26%;the load on medium foot is rise from 9.9 kg to 13.5 kg, increasing 35%;the load on heel is declined from 27.5 kg to 35.5 kg, decreasing 23%.The load on forefoot of patient who suffered from foot droop is declined from 22.46kg to 21.88kg between wearing HWB, decreasing 3%;the load on medium foot is rise from 6.78kg to the 8.05kg, increasing 4%;the load on heel is rised from 5.98kg to 8.75kg, increasing 46%.The load on forefoot of patient who suffered from fracture of Vertebrae thoracicae accompanied by paralysis is declined from 28.05kg to 27.35kg between wearing HWB, decreasing 3%;the load on medium foot is rise from 7.43kg to8.47kg, increasing 14%;the load on heel is rised from 8.62kg to 12.21kg, increasing 42%.Conclusion1. HWB is a double layer elasticity strap that gone to the foot from the waist. It establishes the assistance wreath form that is divided into a top and bottom two parts in the lap to take fixedly. It has belt ferrule ,foot ferrule , adjust wreath and link to constitute.2. The inner part of HWB is made by the two kinds of different materials. At the flexible stage of rubber bands, the relationship of the load and the transformation is changed by direct proportion variety. So it is the clinical work stage of the elasticity strap. At the flexible stage of the cotton textiles, the relationship of the load and the transformation is changed by the line variety. It is also the stage that the strength synthesis of the elasticity strap. HWB is such a pair of layers structure that can acquire twice valid motivity.3. HWB is the tool that we have developed as the assistance for walking aids, in regard to its biomechanics effect, the knee upper part of HWB help to strengthen the muscle electricity of thigh muscles at walking swing phase, the knee lower part of HWB help to strengthen the muscle electricity of calf muscles at walking stance phase.4.We have applied the miniature pressure sensor that we independence to develop it by ourself. Constructed them in the shoe to carry on a test that the normal test-receivers and the clinical patients were measured in a dynamic loading state. During the period of walking in the test-receivers , the load on forefoot, medium foot and heal bears a weight together.5. HWB can strengthen the muscles such as Vastus medialis to stretch the knee joint activity, the dual result that the treadle function of tibialis anterior and peroneus longus. It is applicable extensively to some orthopedics diseases such as gait disorder and walking difficulty, HWB have the effect of gait correcting and walking assistance. |
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