不同運(yùn)動(dòng)形式下足底受力與肌電特征分析
[Abstract]:Objective: Different sports form, different weight bearing, wearing different shoe movement have different impact on the foot and ankle joint. In this paper, three-dimensional force-measuring platform, telemeter and high-speed camera are used in this paper. The correlation between the anterior tibial muscle and the pertalus and the different shoes. In order to make rational use of the type of movement in the course of life and training, which shoe is more beneficial to the protection of the anterior tibial muscle and the posterior segment of the tibia. Methods: Six students of physical education in Xi 'an Institute of Physical Education were selected, and then 5 Km/ h, 7 Km/ h, 5 Km/ h span and 5 Km/ h steps were carried out in turn. The second was 5Kg, 10Kg, 15Kg and 20Kg, respectively. The experiment tests were carried out in four kinds of motion forms including stride and upper and lower steps. At last, the experiment tests were carried out in four kinds of athletic forms, such as running shoes, climbing shoes, loading 5Kg, 10Kg, 15Kg, 20Kg, running, stride, and up and down steps. The surface reaction force is measured by a three-dimensional force measuring platform, and the electric parameters of the anterior muscle and the lateral wall of the tibia are measured by the telemeter electrometer, and the three-dimensional measuring instrument is utilized to synchronize the three three. Result: 1. Foot contact time: In the case of bare feet, go 0. 8s, run 0. 5s, stride 0. 5s, upper and lower steps 0. 68s; in the case of wearing sports shoes, go 0. 85s, run 0. 55s, stride 0. 53s, upper and lower steps 0. 77s; in case of climbing shoes, go 0. 93s, run 0. 61s, stride 0. 6s, up and down steps 0. 89s. 2. Peak reaction force on foot ground: In case of bare feet, go 1217N, run 1504N, stride 2150N, upper and lower steps 1595N; in case of running shoes, go 1252N, run 1595N, step 1769N, up and down steps 1514N. In the case of climbing shoes, walk 12345N, run 1584N, step 1878N, up and down steps 1516N.3. Under different gait, with the increase of weight, the peak-to-ground reaction force, IEMG and RMS also increased. The normalized values of IEMG in the anterior tibial muscle were: bare feet, 4. 2%, 4. 15%, stride 6. 3%, up and down steps 6. 3%; in the case of sports shoes, 4. 85%, 4. 65%, stride 4. 53%, up and down steps 3. 6%; in the case of climbing shoes, 4. 3%, 3. 98%, stride 4. 48%, Up and down steps 3.47%. in that case of bare foot, 4. 7%, 6. 1%, stride 7. 2%, up and down step 5. 3%; in the case of sports shoes, 9. 8%, 6%, 6. 1%, up and down step 8%; in the case of climbing shoes, walk 6. 2%, run 5. 1%, stride 5. 1%, Up and down steps 6.5%. 5. The RMS normalized values of the anterior tibial muscle were 7. 25%, 6. 33%, 7. 53%, 5.37%, respectively. In the case of climbing shoes, 6. 3%, 5. 9%, stride 6%, and upper and lower steps 5.17% were taken. The RMS normalized values were: 4%, 2. 9%, stride 2.93%, upper and lower steps 5. 6%, climbing shoes, 8%, 8. 05%, stride 8%, up and down steps 1.2%. Conclusion: 1. Walk, run, stride, up and down steps four kinds of motion form (similar speed), wear the same pair of shoes (bare feet, sports shoes, mountaineering shoes) foot contact time size relationship is: go to the lower step to run stride. 2. Walk, run, stride, upper and lower steps four gait (similar speed), wear the same pair of shoes (bare feet, sports shoes, mountaineering shoes) under the condition that the foot ground peak reaction force magnitude relation is: stride the upper and lower steps; and go, run up and down steps, Cross-step foot ground peak counterforce is about 1.5 times the body weight, about 2 times, about 2 times, about 3 times. The peak-to-ground reaction force on the foot of the foot increased, and the normalized values of the anterior and inferior tibial muscles of the tibia showed an irregular increase or decrease. In other words, the relationship between the peak pressure of the sole and the normalized value of IEMG in the anterior tibial muscle and the tibial muscle was irregular. In the case of wearing shoes (sports shoes, hiking shoes), walking, running, stride, up and down steps (similar in speed), wearing hiking shoes is more conducive to protecting the anterior muscle of the tibia than wearing sports shoes, while the sport of wearing sports shoes is more beneficial to protecting the tibia than wearing the mountaineering shoes.
【學(xué)位授予單位】:西安體育學(xué)院
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類號(hào)】:G804.6
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