Based On The Finite Element Model Of The Quadriceps Muscle With Tui-na Kneading Method In Biomechanical Parameters Research

Objective:The parameter measuring system of ZTC-I intelligent traditional Chinese massage technique is used that gathered the mechanical parameters of kneading. MRI and finite element software is used that established quadriceps three-dimensional finite element model. The quadriceps three-dimensional finite element model is used as carrier to simulate the stresses?strains and displacement of kneading method. It is used to analyze the mechanical parameter of different faction's kneading method. Then providing reference for standardized research of kneading method and then provides new ideas for massage technique.Method:1.The data collection and analysis of mechanical parameters in massage technique:the parameters measuring system of ZTC-I intelligent traditional Chinese massage technique is used that gathered Luo Caigui's?He Hongyang 'sand Peng Qusi's mechanical parameters of thumb kneading method?major thenar kneading method and palm kneading method. And analyzed the difference of the parameter of frequency?time period and the maximum pressing the minimum pressure of three directions.(Z:Vertical?X:Horizontal of left and righ?Y:Horizontal of front and back)2, the establishment and verification of quadriceps three-dimensional model:GE Discovery MR 7503.0T MRI scanner is used that gained the quadriceps MRI image of health volunteers. It used Mimics?Geomagic studio?Netfabb studio?Visual studio?MATLAB finite element software, etc to combine biomechanical mechanical parameters of each component of quadriceps, and to establish the three-dimensional model of quadriceps. It be given 2N to 40N and 2 step-lengths' stress separately on model, to analyze the result in order to verify finite element calculation program. Compare the quadriceps finite element model stress and displacement result with biomechanical in vitro experiment under the same load and boundary in order to verify the validity of model3, the study of quadriceps model of stress and strain in kneading:we analyzed and arranged three teachers' practical mechanics data of kneading; Computer data is used to pro grammatically simulate and turned it into the mechanical functions data in computer. The center is patella edge on 5cm and medial patella inward 2cm (nearly close to the place of Xuehai). The direction is perpendicular to the reaction sites. Time period is 60 seconds. The area of action is according to the actual contacting area of each teacher's palm. Particular examples are as the follow-up:the range of professor Luo Caigui's?Hongyang's and Peng Qusi's thumb kneading method? major thenar kneading method and palm kneading method respectively is 2×2cm? 2×<4ccm?3×6cm;2×2cm?2×4cm?3×6cm; 1.5×1.5cm?2×3cm?2.5×5cm. The Xuehai is used as the viewpoint to observe the stress and displacement of the point in the scene throughout the whole kneading simulation.Results:1?1.1Mr Luo's thumb kneading method:frequency:165times/minute; time period:0.36±0.00seconds; Z peak value:0.00±0.00; Z valley value:0.00±0.00; X peak value:0.37±0.02; X valley value:-0.30±0.05; Y peak value:0.37±0.02; Y valley value:-0.71±0.02; Mr Luo's major thenar kneading method:frequency: 165 times/minute; time period:0.34±0.00seconds; Z peak value (unit:Kg): 0.00±0.00; Z valley value:0.00±0.00; X peak value:0.37±0.02; X valley value:-0.30±0.05; Y peak value:0.37±0.02; Y valley value:-0.71±0.02; Mr Luo's palm kneading method:frequency:175times/minute; time period:0.34±0.01 seconds; Z peak value:0.00±0.00; Z valley value:0.00±0.00; X peak value:0.37±0.02; X valley value:-0.44±0.02; Y peak value:0.64±0.02; Y valley value:-0.89±0.14; Mr Luo's frequency of three kneading methods are similar. The time that finish a kneading is average (wave is stable), the difference is insignificance in statistics; the stress of Z in three kneading method is nearly zero; peak value' and valley value' stress ofX and Y are obviously different.1.2Mr He's thumb kneading method:frequency:112 times/minute; time period:0.52±0.01 seconds; Z peak value:0.17±0.01; Z valley value:0.00±0.00; X peak value:0.16±0.02; X valley value:-0.09±0.03; Y peak value:0.10±0.02; Y valley value:-0.16±0.01; Mr He's major the nar kneading method:frequency: 115 times/minute; time period:0.53±0.01 seconds; Z peak value:1.12±0.09; Z valley value:0.91±0.05; X peak value:0.22±0.02; X valley value:-0.24±0.19; Y peak value:0.30±0.02; Y valley value:-0.24±0.19; Mr He's palm kneading method:frequency:114 times/minute; time period:0.53±0.01 seconds; Z peak value:2.09±0.07; Z valley value:1.58±0.07; X peak value:0.15±0.02; X valley value:-0.28±0.06; Y peak value:0.47±0.05; Y valley value:-0.87±0.03; Mr He' s frequency of three kneading methods are similar. The time that finish a kneading is average (wave is stable), the difference is insignificance in statistics; peak value'and valley value' stress of X?Y and Z in three kneading methods are obviously different.1.3Mr Peng's thumb kneading method:frequency:55 times/minute; time period:1.09±0.01 seconds; Z peak value:0.98±0.02; Z valley value:0.05±0.02; X peak value:0.22±0.02; X valley value:-0.30±0.02; Y peak value:0.21±0.10; Y valley value:-0.85±0.05; Mr Peng's major thenar kneading method:frequency: 53 times/minute; time period:1.13±0.01 seconds; Z peak value:2.58±0.10; Z valley value:1.10±0.08; X peak value:1.35±0.02; X valley value:-0.37±0.02; Y peak value:1.37±0.04; Y valley value:-1.76±0.03; Mr Peng's palm kneading method: frequency:52 times/minute; time period:1.15±0.01 seconds; Z peak value: 3.08±0.12; Z valley value:1.18±0.11; X peak value:1.15±0.02; X valley value:-0.16±0.02; Y peak value:0.95±0.12; Y valley value:-1.51±0.02; Mr Peng's frequency of three kneading methods are similar. The time that finish a kneading is average (wave is stable), the difference is insignificance in statistics; peak value'and valley value' stress of X?Y and Z in three kneading methods are obviously different.The comparative differences among three teacher's mechanical parameters is extremely significantly(P<0.01), but each of their kneading frequency?time period and pressure values are all relatively stable.2?The model of the normal people's quadriceps three-dimensional finite element was established in this study which include includes 13291 spots?39867 sides?6578 triangles and one shell. The volume is 881.7707 cubic centimeter. The area is 680.2908 square centimeter. With the same stress, the compression-displacement curve and stress-strain curve is consistent with biomechanical experimental results in relative literature.3?3.1 Professor Luo Caigui's thumb kneading model of maximum stress(unit: KPa):76.67±7.46; Maximum strain:0.80±0.01; Professor Luo Caigui's major thenar kneading model of maximum stress:70.00±6.30; Maximum strain:0.70±0.02; Professor Luo Caigui's palm kneading model of maximum stress:97.33±5.94; Maximum strain:0.98±0.13. The contrasts of three kneading methods are obviously different.3.2 Professor He Hongyang's thumb kneading model of maximum stress:19.97±1.15; Maximum strain:0.37±0.02; Professor He Hongyang's major thenar kneading model of maximum stress:145.15±2.13; Maximum strain:1.00±0.11; Professor He Hongyang's palm kneading model of maximum stress: Maximum strain 230.00±4.70; Maximum strain:1.98±0.13.The contrasts of three kneading methods are obviously different.3.3 Doctor Peng Qusi's thumb kneading model of maximum stress:106.87±4.46; Maximum strain:0.85±0.03; Doctor Peng Qusi' smajor thenar kneading model of maximum stress:288.68±5.69; Maximum strain:2.48±0.14; Doctor Peng Qusi' spalm kneading model of maximum stress:337.23±4.76; Maximum strain:3.48±0.19?The contrasts of three kneading methods are obviously different.The contrast of maximum stress and strain among the kneading method of three schools is obviously different.Conclusion:1?The different faction of frequency stabilization and pressure value of three doctors'kneading methods are different. It reflected their each clinical massage features.2?The normal people's quadriceps three-dimensional finite element model reflects anatomic shape and biomechanical characteristics of quadriceps in this study. The finite element model has validity. It can apply to biomechanical parameters study of different kneading in different faction.3?The stress-strain and load of the quadriceps finite element kneading among the three schools is proportionality to some extent. It verified the characteristics of mechanical parameters among the three schools of kneading methods. It can provide a powerful basis for the inheritance?teaching and standard of special massage method. It provides a better idea and method for basic study of massage.