Effect of circulatory system response to motor control in one-sided contractions
Effect of circulatory system response to motor control in one-sided contractions
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DOI：
10.1007/s00421-018-3907-y
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发表时间：
2018-09-01
影响因子：
3
通讯作者：
Onodera, Sho
中科院分区：
文献类型：
--
作者：
Takahara, Terumasa;Yamaguchi, Hidetaka;Onodera, Sho
本研究的目的是阐明单侧骨骼肌收缩对循环系统、脊髓α运动神经元兴奋性和体感系统诱发电位的影响。9名健康男性在右手静态抓握时保持最大随意收缩的10%、20%和30%的张力。在抓握过程中记录心率、高频（HF）、血压（BP）、F波和体感诱发电位（SEP）。从左手记录BP、F波和SEP收缩强度对心率有显著的主效应（0%：68.2 ± 6.8 bpm，10%：67.6 ± 7.4 bpm，20%：69.7 ± 8.5 bpm，30%：73.7 ± 9.3 bpm，F（3.24）=9.18，P < 0.01），收缩压（0%：127.7 ± 15 mmHg，10%：136.2 ± 13.5 mmHg，20%：136.2 ± 13.5 mmHg，30%：140.0 ± 17.1 mmHg，F（3.24）=23.93，P < 0.01），舒张压（0%：69.3 +/- 8.5 mmHg，10%：76.9 +/- 11.1 mmHg，20%：79.9 +/- 12.5 mmHg，30%：86.2 +/- 14 mmHg，F（3.24）=17.09，P < 0.01）和F波出现率（0%：29.7 ± 15.6%，10%：39.3 ± 20.5%，20%：47.5 ± 22.9%，30%：55.2 ± 21.8%，F（3.24）=14.04，P < 0.01）。对于ln HF（0%：5.9 ± 0.6，10%：6.3 ± 0.9，20%：6.3 ± 1.3，30%：6.0 ± 1.0，F（3.24）=2.43，P = 0.08），F波潜伏期（0%：29.6 ± 1.7 ms，10%：26.9 ± 2.1 ms，20%：26.5 ± 3.6 ms，30%：26.9 ± 2.3 ms，F-3.24=0.11，P = 0.96），F波振幅（0%：2.0 ± 0.9%，10%：2.2 ± 0.9%，20%：2.3 ± 0.7%，30%：2.8 ± 1.1%，F（3.24）=2.80，P = 0.06）和N20振幅（0%：3.9 +/- 1.7 A mu V，10%：3.7 +/- 1.7 A mu V，20%：3.9 +/- 1.7 A mu V，30%：3.9 +/- 1.8 A mu V，F（3.24）=0.61，P = 0.62）。我们的结论是，循环系统和运动系统的调节对感觉输入的影响有限。
The purpose of this study was to clarify the effect one-sided skeletal muscle contraction has on the circulatory system, spinal alpha-motoneuron excitability, and somatosensory-system-evoked potential.Nine healthy males maintained tension at 10, 20, and 30% of maximal voluntary contraction in static gripping in right hand. Heart rate, ln high frequency (HF), blood pressure (BP), F-wave, and somatosensory-evoked potential (SEP) were recorded during gripping task. BP, F-wave and SEP were recorded from left hand (contralateral side from contracting side).There were significant main effects of contractions strength on heart rate (0%: 68.2 +/- 6.8 bpm, 10%: 67.6 +/- 7.4 bpm, 20%: 69.7 +/- 8.5 bpm, 30%: 73.7 +/- 9.3 bpm, F (3.24)=9.18, P < 0.01), systolic BP (0%: 127.7 +/- 15 mmHg, 10%: 136.2 +/- 13.5 mmHg, 20%: 136.2 +/- 13.5 mmHg, 30%: 140.0 +/- 17.1 mmHg, F (3.24)=23.93, P < 0.01), diastolic BP (0%: 69.3 +/- 8.5 mmHg, 10%: 76.9 +/- 11.1 mmHg, 20%: 79.9 +/- 12.5 mmHg, 30%: 86.2 +/- 14 mmHg, F (3.24)=17.09, P < 0.01), and F-wave appearance rate (0%: 29.7 +/- 15.6%, 10%: 39.3 +/- 20.5%, 20%: 47.5 +/- 22.9%, 30%: 55.2 +/- 21.8%, F (3.24)=14.04, P < 0.01). For the ln HF (0%: 5.9 +/- 0.6, 10%: 6.3 +/- 0.9, 20%: 6.3 +/- 1.3, 30%: 6.0 +/- 1.0, F (3.24)=2.43, P = 0.08), F-wave latency (0%: 29.6 +/- 1.7 ms, 10%: 26.9 +/- 2.1 ms, 20%: 26.5 +/- 3.6 ms, 30%: 26.9 +/- 2.3 ms, F-3.24=0.11, P = 0.96), F-wave amplitude (0%: 2.0 +/- 0.9%, 10%: 2.2 +/- 0.9%, 20%: 2.3 +/- 0.7%, 30%: 2.8 +/- 1.1%, F (3.24)=2.80, P = 0.06), and N20 amplitude (0%: 3.9 +/- 1.7 A mu V, 10%: 3.7 +/- 1.7 A mu V, 20%: 3.9 +/- 1.7 A mu V, 30%: 3.9 +/- 1.8 A mu V, F (3.24)=0.61, P = 0.62), between the conditions. We conclude that regulation of the circulatory system and motor system has a limited effect on sensory input.