本文選題：急性低氧 + 抗阻練習(xí)　； 參考：《北京體育大學(xué)》2017年碩士論文

【摘要】：目的:通過觀察一次急性常氧高強(qiáng)度抗阻練習(xí)、低氧高強(qiáng)度抗阻練習(xí)以及低氧低強(qiáng)度抗阻練習(xí)對(duì)激活后增強(qiáng)效應(yīng)(PAP)和肌肉募集的影響,探索低氧抗阻練習(xí)對(duì)于神經(jīng)肌肉募集以對(duì)PAP影響的機(jī)制。方法:研究一:12名受試者間隔一周分別完成常氧高強(qiáng)度抗阻練習(xí)(90%1RM,3個(gè)/組,共3組,間歇90秒),低氧(海拔高度)高強(qiáng)度抗阻練習(xí)(同常氧)和低氧低強(qiáng)度抗阻練習(xí)(45%1RM,6個(gè)/組,共3組,間歇90秒),在練習(xí)的前后測(cè)試下蹲跳(CMJ)高度,最大等長(zhǎng)收縮時(shí)的積分肌電。研究二:7名受試者間隔一周進(jìn)行同研究一的三種抗阻練習(xí),在練習(xí)的前后測(cè)試CMJ高度,最大等長(zhǎng)收縮測(cè)試伸膝峰力矩同時(shí)記錄雙腿股直肌、股外側(cè)肌和股內(nèi)側(cè)肌的肌電,分析力量發(fā)展速率(RFD)、電機(jī)械延遲(EMD)。結(jié)果:研究一:受試者在常氧高強(qiáng)度抗阻練習(xí)、低氧高強(qiáng)度抗阻練習(xí)以及低氧低強(qiáng)度抗阻練習(xí)后下蹲跳測(cè)試高度上都出現(xiàn)了激活后增強(qiáng)效應(yīng)(PAP)。從下蹲跳測(cè)試高度上來看,低氧低強(qiáng)度抗阻練習(xí)后即刻的高度(56.1±4.4cm,p0.05)顯著高于低氧高強(qiáng)度抗阻練習(xí)后即刻的CMJ高度(52.6±4.8cm,p0.05)和常氧高強(qiáng)度抗阻練習(xí)后CMJ高度(53.1±4.8cm,p0.05);低氧低強(qiáng)度抗阻練習(xí)后8分鐘的CMJ高度(58.4±5.5cm,p0.05)顯著高于常氧高強(qiáng)度抗阻練習(xí)后8分鐘CMJ的高度(55.9±5.8cm,p0.05)。積分肌電結(jié)果顯示,左腿股直肌在下蹲跳測(cè)試時(shí)的肌肉募集程度在低氧低強(qiáng)度抗阻練習(xí)后4分鐘(2983.2±1489.3,p0.05)和12分鐘(3447.8±1894.7,p0.05)分別顯著高于低氧高強(qiáng)度抗阻練習(xí)后4分鐘(1959.7±445.7,p0.05)和12分鐘(2131.8±761.7,p0.05)。研究二:等長(zhǎng)肌力測(cè)試的力矩?cái)?shù)據(jù)顯示只有在低氧低強(qiáng)度抗阻練習(xí)后產(chǎn)生了激活后增強(qiáng)效應(yīng)。電機(jī)械延遲(EMD)結(jié)果來看,低氧低強(qiáng)度抗阻練習(xí)后12分鐘的EMD值(73.14±4.15ms,p0.05)顯著低于常氧高強(qiáng)度練習(xí)后12分鐘EMD的值(98.14±10.19ms,p0.05)。結(jié)論:常氧高強(qiáng)度抗阻練習(xí)、低氧高強(qiáng)度抗阻練習(xí)和低氧低強(qiáng)度抗阻練習(xí)后均可以產(chǎn)生激活后增強(qiáng)效應(yīng)(PAP);低氧低強(qiáng)度抗阻練習(xí)效果更好。
[Abstract]:Objective: to observe the effects of an acute normoxic high intensity resistance exercise, hypoxic high intensity resistance exercise and low oxygen low intensity resistance exercise on PAPs and muscle recruitment after activation. To explore the mechanism of hypoxic resistance exercise on neuromuscular recruitment to PAP. Methods: a total of 12 subjects were enrolled in the study. They completed the normoxic high intensity resistance exercises 901RM, 3 / group, interval 90 seconds, hypoxia (altitude), high intensity resistance exercises (same oxygen) and hypoxia low intensity resistance exercises 451RM, 6 / group, respectively. In three groups, the integral myoelectric activity of CMJ was measured before and after the exercise, and the maximum isometric contraction. Study 2: 7 subjects performed three kinds of resistance exercises at intervals of one week. The CMJ height was measured before and after the exercise, and the maximal equal-length contraction test, the peak moment of extension knee, recorded the myoelectric activity of the rectus femoris muscle, lateral femoral muscle and medial femoris muscle at the same time. The rate of force development is analyzed, and the electromechanical delay (EMD) is obtained. Results: first, the subjects had the activation enhancement effect on the test height of squatting jump after normoxic high intensity resistance exercise, hypoxic high intensity resistance exercise and low oxygen low intensity resistance exercise. From the height of the squat jump test, The height of CMJ immediately after hypoxic low strength resistance exercise (56.1 鹵4.4 cm / p 0.05) was significantly higher than that of hypoxic high intensity resistance exercise (52.6 鹵4.8 cm / p 0.05) and the CMJ height of 53.1 鹵4.8 cm / min after hypoxic and high intensity resistance exercise. The CMJ height was 58.4 鹵5.5 cm / min after hypoxic and low intensity resistance exercise. The height of CMJ was 55.9 鹵5.8cm ~ (-1) cm ~ (-1) (P = 0.05), which was significantly higher than that of normal oxygen and high strength resistance exercises 8 minutes later. The results of integral electromyography showed that the muscle recruitment of the left leg rectus femoris muscle in the squat jump test was significantly higher than that in the 4 minutes after hypoxic and low intensity resistance exercises (2983.2 鹵1489.3p0.05) and in the 12-minute exercise (3447.8 鹵1894.7p0.05), respectively, compared with 4 minutes after hypoxic high intensity resistance exercise (1959.7 鹵445.7p0.05) and 12 minutes after hypoxia high intensity resistance exercise (2131.8 鹵761.7p0.05p0.05). Study 2: the torque data of isometric muscle strength test showed that only after hypoxic and low intensity resistance exercises did the enhancement effect after activation. The EMD value of 12 minutes after hypoxic and low intensity resistance exercise was 73.14 鹵4.15 Ms / p 0.05), which was significantly lower than that of 12 min EMD value of 98.14 鹵10.19 Ms / min after normoxic high intensity exercise. Conclusion: normal oxygen high strength resistance exercise, hypoxia high intensity resistance exercise and low oxygen low strength resistance exercise can all produce the enhancement effect after activation, and hypoxia and low intensity resistance exercises have better effect.
【學(xué)位授予單位】：北京體育大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：G804.2

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