本文選題：非穩(wěn)定　切入點：肌電　出處：《中國體育科技》2017年02期 　論文類型：期刊論文

【摘要】：目的:為了探討穩(wěn)定與非穩(wěn)定條件下不同負重對人體肌群RMS的影響。方法:運用實驗法、測試法及肌電分析等方法,對12名田徑運動員在穩(wěn)定與非穩(wěn)定條件下不同負重(0%RM、30%RM及60%RM)的保加利亞深蹲有關肌群(11塊)進行了肌電測試與分析。結果:1)通過方差分析發(fā)現(xiàn),負重因素影響肌肉的數(shù)量最多(P0.05,P0.001),且貢獻值也均大于其他因素;2)不考慮負重因素時,穩(wěn)定與非穩(wěn)定條件下產(chǎn)生的總體效果相差不大,但是,肌群的用力模式組合存在差異,非穩(wěn)定條件突出了后部肌群(豎脊肌、股二頭肌、腓腸肌),而穩(wěn)定條件突出了腿前部的股四頭肌(股直肌、股內(nèi)側肌、股外側肌),在考慮負重因素時,僅在0%RM時,非穩(wěn)定較穩(wěn)定刺激了更多的肌肉;3)隨著負重的提升,穩(wěn)定與非穩(wěn)定條件下的大部分肌肉活性均顯著性提高;4)0%RM時,非穩(wěn)定條件產(chǎn)生的效果優(yōu)于穩(wěn)定條件(P0.05),而當負重達到30%RM時,則表現(xiàn)為穩(wěn)定條件更優(yōu)(P0.05),當負重提高到60%RM時,兩者沒有太大差異(P0.05)。結論:1)不同條件的自由負重練習不僅要關注參與肌肉活性的改變,也應考慮用力模式的不同;2)隨著負荷的增加,負重成為影響人體肌肉訓練效果的主要因素;3)穩(wěn)定-非穩(wěn)定條件、負重與人體肌肉RMS存在一種交叉曲線關系,但它們并非對立,預示著非穩(wěn)定練習應是一種有效輔助手段。
[Abstract]:Objective: to study the effect of different load on RMS of human muscle group under stable and unstable conditions. Methods: the methods of experiment, test and electromyography were used. The electromyography tests and analyses of 12 track and field athletes with different weights bearing different weights under stable and unstable conditions, including RM30RM and 60 RMs, were carried out in Bulgaria. The maximum number of muscles affected by weight loading was P0.05G / P0.001g, and the contribution value was higher than that of other factors.) when the load factor was not taken into account, the overall effect under stable and unstable conditions had little difference. However, there was a difference in the strength pattern combination of muscle group. Unstable conditions highlight the posterior muscle group (vertical spinal muscle, biceps femoris, gastrocnemius muscle), while stable conditions highlight the quadriceps femoris (rectus femoris, medial femoris, lateral femoral muscle) in the front of the leg. With the increase of load, the muscle activity of most of the muscles increased significantly under stable and unstable conditions. The effect of unsteady condition was better than that of P0.05 when the load reached 30RM, but when the weight load reached 30RM, the effect of unsteady condition was better than that of P0.05N, when the load reached 30RM, the effect of unsteady condition was better than that of stable condition (P 0.05). When the load is increased to 60 RM, there is no significant difference between the two. Conclusion the free weight loading exercises under different conditions should not only pay attention to the change of muscle activity. We should also consider the difference of exertion mode (2) with the increase of load, load is the main factor that affects the effect of human muscle training. (3) the condition of stability and unstability. There is a kind of cross curve relation between load and RMS of human muscle, but they are not opposite. This indicates that unstable exercises should be an effective auxiliary means.
【作者單位】： 吉林大學;
【基金】：國家體育總局奧運攻關項目(2015HT032)
【分類號】：G804.6

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