中国组织工程研究 ›› 2023, Vol. 27 ›› Issue (23): 3721-3727.doi: 10.12307/2023.516

• 肌肉肌腱韧带组织构建 tissue construction of the muscle, tendon and ligament • 上一篇    下一篇

短期低频脉冲磁场诱导经典瞬时感受器电位通道1对局部肌肉肌力提升后的保持与衰减变化轨迹

厉中山1,2,白  石3,4,刘  洁5,杨铁黎6,邹宇琪3,孔维签3,李  伟3,张秦阳3,陈  松1,车同同7,李志远8,关荣鑫1,王春露9   

  1. 1东北大学体育部,辽宁省沈阳市  110819;2福建师范大学体育科学学院,福建省福州市  350117;3沈阳工业大学信息科学与工程学院,辽宁省沈阳市  111003;4辽宁省磁医学检测与治疗专业技术创新中心,辽宁省沈阳市  110034;5中国医科大学科学实验研究中心,辽宁省沈阳市  110122;6首都体育学院,北京市  100191;7清华大学体育部,北京市100084;8浙江大学公共体育与艺术部,浙江省杭州市  310058;9北京体育大学冰上运动学院,北京市  100084
  • 收稿日期:2022-08-02 接受日期:2022-08-16 出版日期:2023-08-18 发布日期:2023-01-16
  • 通讯作者: 白石,沈阳工业大学信息科学与工程学院,辽宁省沈阳市 111003;辽宁省磁医学检测与治疗专业技术创新中心,辽宁省沈阳市 110034 王春露,北京体育大学冰上运动学院,北京市 100084
  • 作者简介:厉中山,体育教育训练学在读博士。
  • 基金资助:
    国家自然科学基金青年项目(62001313),项目负责人:白石;中国大学生体育协会一般项目(L202103003),项目负责人:厉中山;辽宁省科学技术计划项目(2021JH2/10300134,2020-MS-211),项目负责人:白石;2021年辽宁省教育厅基本科研项目(LJKZ0133),项目负责人:白石

Maintenance and attenuation trajectory of increased muscle strength after exposure to short-term low-frequency pulsed magnetic field via activation of classical transient receptor potential vanilloid-1

Li Zhongshan1, 2, Bai Shi3, 4, Liu Jie5, Yang Tieli6, Zou Yuqi3, Kong Weiqian3, Li Wei3, Zhang Qinyang3, Chen Song1, Che Tongtong7, Li Zhiyuan8, Guan Rongxin1, Wang Chunlu9   

  1. 1Department of Physical Education, Northeastern University, Shenyang 110819, Liaoning Province, China; 2School of Sports Science, Fujian Normal University, Fuzhou 350117, Fujian Province, China; 3School of Information Science and Engineering, Shenyang University of Technology, Shenyang 111003, Liaoning Province, China; 4Liaoning Provincial Technology Innovation Center for Magnetic Medicine Detection and Treatment, Shenyang 110034, Liaoning Province, China; 5Scientific Experiment Research Center of China Medical University, Shenyang 110122, Liaoning Province, China; 6Capital University of Physical Education and Sports, Beijing 100191, China; 7Department of Physical Education, Tsinghua University, Beijing 100084, China; 8Department of Public Sports and Arts, Zhejiang University, Hangzhou 310058, Zhejiang Province, China; 9School of Ice Sports, Beijing Sport University, Beijing 100084, China
  • Received:2022-08-02 Accepted:2022-08-16 Online:2023-08-18 Published:2023-01-16
  • Contact: Bai Shi, School of Information Science and Engineering, Shenyang University of Technology, Shenyang 111003, Liaoning Province, China; Liaoning Provincial Technology Innovation Center for Magnetic Medicine Detection and Treatment, Shenyang 110034, Liaoning Province, China Wang Chunlu, School of Ice Sports, Beijing Sport University, Beijing 100084, China
  • About author:Li Zhongshan, PhD candidate, Department of Physical Education, Northeastern University, Shenyang 110819, Liaoning Province, China; School of Sports Science, Fujian Normal University, Fuzhou 350117, Fujian Province, China
  • Supported by:
    National Natural Science Foundation of China (Youth Project), No. 62001313 (to BS); General Project of China University Sports Association, No. L202103003 (to LZS); Science and Technology Projects of Liaoning Province, Nos. 2021JH2/10300134, 2020-MS-211 (to BS); 2021 Basic Research Project of Education Department of Liaoning Province, No. LJKZ0133 (to BS)

摘要:

文题释义:

经典瞬时受体电位通道:是一类主要透Ca2+的非选择性阳离子通道,参与细胞内Ca2+的调节,在细胞的生理功能的调节中发挥了重要的作用。
脉冲磁:该研究使用特殊构建的具有特定频率与强度的低强度脉冲磁场作为磁干预手段。

背景:短暂的低频脉冲磁场刺激可诱导和激活经典瞬时感受器电位通道1,并可提升人体局部肌肉(如肱二头肌)的最大自主收缩力与力量耐力。
目的:通过可激活经典瞬时感受器电位通道1的特定低频脉冲磁场作为肌力提升手段,并观察短期刺激对人体肱二头肌最大自主收缩力与力量耐力提升后的变化衰减过程。
方法:选取普通成年健康受试者27例,随机等分为训练组、照射组、训练+照射组。训练+照射组每次接受10 min低频脉冲磁场刺激后即刻进行抗阻训练,照射组只进行10 min低频脉冲磁场刺激,训练组采用抗阻训练,试验时间为8周,在正式试验的第1-12天进行短期肌力提升方案及力量水平后测,随后6周观察各组最大自主收缩力与力量耐力的衰减变化过程。

结果与结论:①所有被试者随着试验时间的不断推进,最大自主收缩力值变化显著(P < 0.01),时间交互效应明显,组间无交互效应,时间与分组交互效应不显著。②与初测值相比,照射组肌力衰减最大自主收缩力跟踪的第1,2,3,4周均显著高于初测值;训练组肌力衰减最大自主收缩力跟踪的第1,4周均显著高于初测值;与后测值相比,照射组最大自主收缩力值肌力衰减跟踪的第5,6周显著低于后测值;训练组最大自主收缩力肌力衰减跟踪的第5,6周显著低于后测值;训练+照射组肌力衰减最大自主收缩力跟踪的第1,5,6周显著低于后测值。③通过对3组最大自主收缩力变化曲线进行相关性分析可以看出,照射组整体最大自主收缩力肌力变化与训练组及训练+照射组最大自主收缩力变化趋势高度正相关,变化趋势高度一致。与照射组相比,训练组与训练+照射组最大自主收缩力具有更强的正相关性。④各组被试随着时间的推进,中值频率值均发生显著性变化(P < 0.01),时间交互效应明显,时间点和分组交互作用对中值频率值变化具有显著性影响(P < 0.05)。⑤与初测值相比,照射组肌力衰减中值频率值跟踪的第2周显著高于初测值;训练+照射组所有肌力衰减中值频率值跟踪的第2周显著高于初测值;与后测值相比,照射组肌力衰减中值频率值跟踪均与后测无显著性差异;训练组肌力衰减中值频率值跟踪的第1,4周显著低于后测值;训练+照射组肌力衰减中值频率值跟踪的第1,2周显著低于后测值。⑥3组受试者力量耐力中值频率值变化曲线进行相关性分析可以看出,照射组与训练组和训练+照射组之间具备较低的正相关性,与训练组相比,训练+照射组与照射组之间的相关程度略高。⑦结果显示,在强度1.5 mT、频率3 300 Hz的脉冲磁场短期刺激方案使肌力增强后,最大自主收缩力衰减到初测值的周期为6周,与该试验抗阻训练的衰减周期及提升后的衰减速度一致,在衰减过程中相比进行抗阻训练的2组变化波动较小,无疲劳累积的影响,肌力保持水平较佳。力量耐力提升后至少可保持6周。相比抗阻训练的力量耐力变化,低频脉冲磁场刺激可免于疲劳累积的影响,抗疲劳能力持续增长与保持水平较好,抗阻训练结合脉冲磁场可观察到对耐力水平带来一定影响与增益效果,减少衰减过程的波动,利于耐力水平的保持。

https://orcid.org/0000-0002-9010-609X(厉中山)

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松;组织工程

关键词: 脉冲磁场, 经典瞬时感受器电位通道1, TRPC1, 力量素质, 肌力衰减, 短期效应, 耐力, 肱二头肌, 收缩, 肌力

Abstract: BACKGROUND: Exposure to transient low-frequency pulsed magnetic field can induce and activate classical transient receptor potential channel 1, and enhance the maximal voluntary contraction force and strength endurance of local muscles, such as biceps brachii.
OBJECTIVE: To use a specific low-frequency pulsed magnetic field that can activate classical transient receptor potential channel 1 as a means of improving muscle strength and to observe the attenuation process of the maximal voluntary contraction force and strength endurance of human biceps brachii after short-term stimulation.
METHODS: A total of 27 normal adult healthy subjects were selected and randomly divided into training group, exposure group, and training+exposure group. The training+exposure group received resistance training immediately after 10-minute exposure to low-frequency pulsed magnetic field; the exposure group was only exposed to low-frequency pulsed magnetic field for 10 minutes; and the training group only received resistance training. The trial duration was 8 weeks. At 1-12 days of the trial, short-term muscle strength enhancement scheme was performed and post-test muscle strength was measured. The attenuation process of maximum voluntary contraction force and strength endurance was then observed in the following 6 weeks.
RESULTS AND CONCLUSION: (1) The maximum voluntary contraction force value of all subjects changed significantly over time (P < 0.01), with obvious time-dependent interaction effect but no interaction effect between groups, and there was no significant difference between time- and grouping-dependent interaction effects. (2) In the 1st, 2nd, 3rd, and 4th weeks, the maximum voluntary contraction force values for strength attenuation in the exposure group were significantly higher than the initial value. In the 1st and 4th weeks, the maximum voluntary contraction force values for strength attenuation in the training group were significantly higher than the initial value. In the 5th and 6th weeks, the maximum voluntary contraction force values for strength attenuation in the exposure group and training group were significantly lower than the post-test value. In the 1st, 5th, and 6th weeks, the maximum voluntary contraction force values for strength attenuation in the training+exposure group were significantly lower than the post-test value. (3) The correlation analysis of the maximal voluntary contraction force curves in the three groups indicated that the overall changes in the maximal voluntary contraction force in the exposure group were highly positively correlated with the variation trend of maximum voluntary contraction force in the training group and training+exposure group. Their variation trend was highly consistent. Compared with the exposure group, the training group showed stronger positive correlation with the training+exposure group in terms of the maximum voluntary contraction force. (4) The median frequency value of the subjects in each group changed significantly with time (P < 0.01), and there was significant time-dependent interaction effect. Time- and grouping-dependent interactions led to significant changes in the median frequency values (P < 0.01). (5) In the 2nd week, the median frequency values of muscle strength attenuation in the exposure group and training+exposure group was significantly higher than the initial value. However, compared with the post-test value, the median frequency values of muscle strength attenuation showed no significant changes in the exposure group. In the 1st and 4nd weeks, the median frequency values of muscle strength attenuation in the training group were significantly lower than the post-test value. In the 1st and 2th weeks, the median frequency values of muscle strength attenuation in the training+exposure group were significantly lower than the post-test value. (6) The correlation analysis of the median frequency change curves in the three groups indicated that the training+exposure group showed a lower positive correlation with the training group and exposure group. However, compared with the training group, the exposure group had a higher correlation with the training+exposure group. (7) After exposure to the short-term pulsed magnetic field with the intensity of 1.5 mT and the frequency of 3 300 Hz, the maximum voluntary contraction force value of muscle strength attenuates to the initial value within 6 weeks, consistent with the attenuation period of resistance training and attenuation speed after enhancement of muscle strength. During the attenuation process, there is less fluctuation in the two resistance training groups, without fatigue accumulation, in which muscle strength can be better maintained. Improved strength endurance can be maintained for at least 6 weeks. Compared with the resistance training, low-frequency pulsed magnetic field stimulation can avoid fatigue accumulation, and the anti-fatigue ability continues to increase and maintain at a better level. Resistance training combined with pulsed magnetic field has a certain benefit for endurance level. To reduce the fluctuation during the attenuation process is beneficial to the maintenance of the endurance level.

Key words: pulsed magnetic field, classical transient receptor potential channel 1, TRPC1, strength quality, muscle strength attenuation, short-term effect, endurance, biceps brachii, contraction, muscle strength

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