Correlation Study Between Electromyography And Anaerobic Power In Wingate Experiment

Purpose:The human body in the great strength, strenuous exercise for a short period of time in the process, the body is under the larger load. With the increase of exercise time, exercise load and energy consumption of materials, the athletes’ ability to do work. In this process, the body in order to maintain the exercise intensity, the nervous system of the muscle fibers to raise state will change too. By wingate anaerobic power test system, and this study ME6000-16 t myoelectricity telemetry system, anaerobic power will be collected experiment of the proceeds of the 30 s and electrical related data to study the changes of analysis, and then to exercise the body in the process of anaerobic metabolism capacity and through analyzing the relationship between the electrical changes.Method:With 10 project athletes sanda specialty as the subjects, adopts Monark843 power cycling, ME6000-16 t myoelectricity telemeter, TM- 6710 cl test instruments, such as high-speed photography system through the study of the 30 s of the subjects of wingate power cycling test. In the process of experimental subjects in Monark843 power bicycle to warm up and length of 30 s formal testing; Before the formal testing myoelectricity tester will ME6000-16 t telemeter of myoelectricity paste on the muscles of the test, and in the experimental testing process using ME6000-16 t myoelectricity telemeter record electrical data; Set up formal test after the start of the tester TM- 6710 cl high-speed photography system experiment. Experiments in the process of test record subjects in cadence cycling in the process of PP, AP, FI, i EMG, RMS, MP, MPF and anaerobic power and electrical related data. This study will first experiment collection of the proceeds of the 30 s anaerobic power and electrical related data on the overall analysis of the changes of anaerobic power and electrical data will then be divided into 5 s a stage piecewise analysis. Analysis and comparison in different time, load athletes under anaerobic power changes with the same time the correlation and differences between electrical changes.Result:(1)subjects were 30 s Wingate anaerobic ability test average indicators are: 677.1 + /- 122.33 W maximum power(PP); The relative maximum power 10.10 + /- 1.57 W/KG; Average power(AP) 522.80 + /- 76.63 W; The relative average power 7.82 + /- 0.88 W/KG; Power decline rate(FI) 41.70 + /- 5.95%.(2)Test in the process of i EMG value was 463.4 + /- 145.05 u Vs quadriceps, 314.9 + 118.21 u Vs for the biceps femoris muscle and gastrocnemius 301.3 + /-99.24 u Vs; The RMS values for quadriceps biceps femoris muscle in his 595.3 + /-190.60 u V, 405.7 + /- 158.67 u V, gastrocnemius 406.7 + /- 131.61 u V. In the process of test, lower limb cadence power bicycle riding.(3)test in the process of MP numerical flesh to 159.3 + /- 42.93 Hz, 114.2 + /-18.71 Hz, the biceps femoris muscle in his quadriceps 110.7 + /- 12.59 Hz; Test in the process of MPF values of gastrocnemius 190.39 + /- 39.63 Hz, 143.1 + /- 22.62 Hz, the biceps femoris muscle in his quadriceps 134.1 + /- 13.63 Hz. With the increasing fatigue, raise stimulation of the gastrocnemius muscle fibers reduced ability and potential activity, need of the biceps femoris muscle in his quadriceps and can raise more slow-twitch muscle fibers in the sports fatigue stages involved in the movement. At this stage, slow-twitch muscle fibers are more stimulus to raise to participate in sports activities, and give priority to with low discharge.Conclusion:(1)comprehensive paper experiments of anaerobic data to carry on the analysis of this study is to test the test of the subjects in the process of movement under the anaerobic condition explosive force and sustaining high power output ability is very general. In the process of sports training, in order to improve their ability of anaerobic need for higher strength training.(2)in the process of test, integral electromyography(i EMG) gradually increased with the increase of load weight. With the increase of time, exercise load also gradually improve, the movement will raise more muscle fibers to participate in sports, in this phase, muscle fiber low frequency electrical discharge cause integral value. So that in the process of movement with the change of the movement time and load, the stimulation, raise of different muscle fibers is different. So in sports training, the training time the length of the need to consider the consumption of fast muscle fibers and fatigue degree, avoid the decrease of motor unit. In the process of test, the RMS gradually increased with the increase of load weight and movement began to push to the fastest lap, the faster the shrinkage, the higher the RMS.In 10 to 15 s phase RMS values began to decline, that has important effects on the muscle fatigue of muscle coordination. So, in the process of movement to control time, reduce the coordination of muscle fiber drop caused by the lower power capability.(3)Muscle MP, MPF and anaerobic metabolism capacity significantly related. In the process of movement, muscle fiber MP, MPF with the increase of load weight gradually decline. After 10 to 15 s phase in the process of the experiment, all the muscle fibers of the MP, MPF numerical showed a trend of decline. With the accumulation of fatigue, muscle discharge situation of change, more is given priority to with slow-twitch muscle fibers low-frequency discharge. After 10 to 15 s phase, gastrocnemius MP, MPF biggest drop in, and of the biceps femoris muscle in his quadriceps, MP, MPF, less volatile, explain the quadriceps become the main force of muscle. At the same time MP of muscle fiber, MPF descent also illustrates the strength of muscle fibers. Therefore, the movement in the late in order to keep the strength you need to mobilize the participation of more fast muscle fibers.(4)In the process of test, the athletes’ anaerobic power curve and the curve of i EMG is most similar to that of integral electromyography(i EMG) gradually increased with the increase of load weight. Because of the difference of muscle fiber types, different types of muscle fibers in the process of movement to raise change is different. So different test i EMG of muscle fibers changes. Anaerobic power curve and the curve of RMS is more similar, but the RMS drop is very small, that muscle fibers in the late movement coordination, the synchronicity between higher, helps maintain muscle strength. The athletes’ anaerobic power curve and MP, MPF curve is large, especially around 15 s. Instructions in the testing process, the athletes’ anaerobic power correlation with i EMG is bigger.