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- 검색키워드
- 주제어 : Sternohyoid muscle (검색결과 5 건)
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복장목뿔근에 대한 수동신장운동이 폐 기능에 미치는 영향
한동욱 대한심장호흡물리치료학회 2023 대한심장호흡물리치료학회지 Vol.11 No.1
Purpose: This study aimed to investigate the effects of passive stretching exercise for the sternohyoid muscle, widely known as the accessory respiratory muscle, on pulmonary function. Methods: A total of 24 female university students without neurological, musculoskeletal, or cardiopulmonary dysfunction were included in this study. The subjects were randomly assigned to experimental (n=14) and control groups (n=10). Pulmonary function was assessed before and after passive stretching exercises using a spirometer (Pony FX, COSMED Inc., Rome, Italy). The experimental group performed 10 sets of three repetitions of passive stretching exercises for the sternohyoid muscle. The control group did not perform any exercise. Results: No significant changes in forced vital capacity and forced expiratory volume in one second were observed in both groups. However, a significant improvement in tidal volume, inspiratory capacity, and vital capacity (VC) was observed in the experimental group after passive stretching exercises, whereas no change was observed in the control group. Additionally, a significant improvement in maximal voluntary ventilation (MVV) was observed in the experimental group, whereas no change was observed in the control group. The changes in VC and MVV were higher in the experimental group than in the control group. Conclusion: Passive stretching exercises for the sternohyoid muscle can improve pulmonary function. In particular, they are effective in improving VC and MVV.
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경부 굴곡변화 및 경부근이 pitch 조절에 미치는 영향
홍기환,김영중,정경호,김영기 대한후두음성언어의학회 1994 대한후두음성언어의학회지 Vol.5 No.1
The vocal pitch is controlled by the tension, mass, and length of the vocal fold. It is well known that cricothyroid approximation raises the vocal pitch by simulating the contraction of the cricothyroid muscle, and there were so many reports that have noted a relationship between cricothyroid distance and pitch control, but there does not seem to be any single generally accepted theory to account for this connection. It is generally known that the strap muscles are active during low and falling Fo, and the suprahyoid muscles are active during high and raising Fo. These findings can be related to a general picture of the motion of the larynx during changes in Fo, the cricothyroid joint would tend to lengthen the vocal folds, as the larynx moves up and forward, and relax them as it moves back and down. In this study, we suggest that the relationship between anterior cricothyroid distance and fundamental frequency of the larynx was so complex according to the level of larynx and vertebral curvature. The higher the level of larynx, the wider the cricothyoid distance, but there is more greater fundamental frequency even though more wide cricothyroid distance. This phono-menon seems to be due to the multifactors, especially the vertical tension of the conus elasticus or the change of cricothyroid articulation. It is generally known that the crocothyoid and vocal is muscles are very closely related to pitch elevation, but sternohyoid muscle seems to be more closely related to pitch lowering. By this electromyographic studies, the sternohyoid muscle have dual activity to pitch control, increased activity during the low fundamental frequency and falling pitch, but also increased activity during the higher fundamental frequency and raising pitch at least in this study.
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민혜정,봉정표 대한의용생체공학회 1996 의공학회지 Vol.17 No.2
We have been studying an implant type EMG-controlled electrolarynx. First of all, we propose the sternohyoid muscle(SH) as a control source of the electrolarynx. The purpose of this study is to investigate the possibility that subjects control voluntarily the constriction of their SH, and produce the control signals of electrolarynx. For this pwnan, we carried out four experiments regarding the control of the electrolarynx. At the results, we found that subjects can control the start/stop of constriction and the amplitude of EMG of their SH. Also, we ascertained the possibility that the start/stop of contraction of SH controls OW/OFF of sound source of the electrolarynx and the amplitude of UG of SH controls the pitch frequency of the electrolarynx.
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기관을 침범한 유두상 갑상선 암 환자에서 흉설골근을 통한 기관재건술 1예
우희원(Hee Won Wu),김연수(Yeon Soo Kim),신유섭(YooSeob Shin),김철호(Chul-Ho Kim) 대한두경부종양학회 2014 대한두경부 종양학회지 Vol.30 No.2
Papillary thyroid carcinoma is known as its relatively high cure rate after surgical treatment. But invasion of the trachea by thyroid carcinoma is poor prognostic factor and the best management is en bloc surgical resection of the tumor invading the trachea. A 55-year-old man was diagnosed as papillary thyroid cancer with tracheal in-vasion. We treated the patient by total thyroidectomy with window resection of invading trachea followed by im- mediate reconstruction with sternohyoid muscle flap and tracheostomy. At 48 days after surgery, tracheostoma was closed and the patient had no functional complication by the surgical process. Until 10 months after surgery, there was no sign of recurrence and the patient led social life without any discomfort. We present this case with a review of the related literatures.
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민혜정,최홍식,윤형로,봉정표 대한후두음성언어의학회 1997 대한후두음성언어의학회지 Vol.8 No.1
In this Paper, we developed an electrolarynx controlled by the EMG(electromyography) of the sternohyoid muscle, and rested the property of the new electrolarynx while normal persons with his own larynx use it. for the examination of property of the developed electrolarynx, our researchers performed three different experiments. The first experiment was tested whether that on/off control of the vibrator of the electrolarynx is synchronized with the activity of the sternohyoid EMG. In the second experiment, it was tested when the lower amplitude of the sternohyoid EMG is produced, whether the higher pitch of the electrolarynx is produced, and vice versa. The third experiment was tested the probability that the electrolarynx can produce the voiceless sound. As the results, we found that the developed electrolarynx had the good produce of the on/off vibrator control and the pitch control of the electrolarynx. Also, we ascertained the possibility that it can produce the voiceless sound.
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