2004-2005 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

Hu, YH

Shi, J

Zheng, YP

2004-2005 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishedVoR allowe

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????????Journal of Biomedical Engineering Research　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　????:胡跃辉(1970-), 男 ,中国科学技术大学生物医学工程专业博士 ,合肥工业大学光电技术研究院讲师 , 目前主要从事生物医学信号处理与分析方面的研究。?????????????胡跃辉1 ,施俊2 ,郑永平3(1.合肥工业大学光电技术研究院 ,合肥 230009;2.上海大学通信与信息工程学院 , 上海 200072;3.香港理工大学康复工程中心 ,香港)??:通过自行开发研制的超声运动与测量系统 ,连续 、同步获取了肱二头肌等长收缩活动时的 B超图像力矩 、肌电信号 ,并将超声扫描骨骼肌得到的有关骨骼肌结构的空间形态变化信息定义为“声肌图(son-omyography ,SMG)。通过采集到的信号研究并讨论了肌肉厚度变化率 SMG 和表面肌电信号 、力矩之间的关系 ,并给出了经验公式 ,它对了解骨骼肌功能 、对骨骼肌建模以及对康复设备的研发等有重要的作用和意义。???:骨骼肌;等长收缩;声肌图;肌电信号;力矩?????:R318　　?????:A　　????:1672-6278(2005)03-0168-04The Measurement of Skeletal Musclewith Multi-parameters by SonographyHU Yao-hui1 , SHI Jun2 , ZHENG Yong-ping3(1.Academy of Optoelectronic Technology , Hefei University of Technology , Hefei , 230009 China;2.School of Communication and Information Engineering , Shanghai University , Shanghai , 200072 China;3.Jockey Club Rehabilitation Engineering Centre , the Hong Kong Polytechnic University , Hong Kong , China)Abstract:The ultrasound signals , electromyography(EMG)signals and torquewere synchronously and continuously acquired by a custom-de-veloped ultrasonic measurement of motion and elasticity(UMME)system , and the dimensional architectural change of muscle continuously ex-tracted from ultrasound images was defined as “ sonomyography(SMG)”.The relationship between the SMG of muscle thickness changes ratio ,surface electromyography and torque from the biceps brachial under an isometric contraction were researched , and then the experiential expres-sions through experiments was given.It can help us to understand the skeletal muscle function ,modeling the skeletal muscle model and developthe rehabilitation equipments.Key words:Skeletal muscle;Isometric contraction;Sonomyography(SMG);Electromyography(EMG);Torque1　??????? 、?????????????????????(electromyography , EMG)?????[ 1 ,2] 。???? ,???????????????? ,?? ,??????? 、????????????????????? ,?????????? 、?? ,??????????????????????????? ,???????????。?????(surface EMG ,SEMG)??????????????????? ,????????????? ,????????????? ,?????????????? ,????????????? ,????????????????。?? ,?? ,???????? B??????????? ,??????????????? 、????????? 、???? 、???????????????????????[ 3-5] 。??[ 6 , 7]??????????????????????? 。?????????????? 、??? 、???????? ,??????????????????? ,?????????????? ,?????????????????? 。???? 、??????????????????????????? 、???? ,??????????????? ,??????????????????? ,????????????????? B ??? 、????????????? ,???? 、??? 、???? ,??????????????????????。?? ,?????“???(sonomyography ,SMG)”???[ 8]????????????????????????????? ,? SMG ??????????????????????????????????????。2　??????????????????? ,???????? ,????????? 。????????????????? ,????????。???????? 1 , B ??? 、??? 、SEMG????????????????????????????? PC??????????????? ,?????????????????????????? ,???????????????? 。? 1　?????????????Fig 1　The diagram of ultrasonic measurementof motion and elasticity system??? ,???????????? 。??????? ,????????????????????????????? 。???????????????? ,????? 90°????? ,????????????? ,????????。?????? 7???? ,??? 24 ～ 30? ,?? 59～ 72kg ,?????????????。??????????????? 2 ,??? ,????????????????????????? ,?????????? ,????????? 。? 2　??????????????Fig 2　The position of EMG electrode and ultrasound probe?? B????????????????????? ,????????????? B????? ,???????????????????????? ,??????????? ,??????????????。?????? B ????????? ,??????????????????? B ??? , ???????????20mm ,???????????? ,?? 2。SEMG???????????? 、??????????????????? 。?????????????????? ,???? ,???????????? ,??????? ,?????????? 。???????? 3??? ,?? 2min ,??????? ,?? 5?。????????????????????? ,???????????????(maximal voluntarycontraction , MVC)???。3　??????????(1)????????? ρ:ρ=d-d0d0×100% (1)?? d0 ??????? , d ???????。??? SEMG ?? ,??????(RMS)?。???????? 、RMS????????SMG?????。169? 3?　　　　　　　　　　　　　　　　　　??? ,?.?????????????　　　　　　　　　　　　　　　　　　d0 ? d?????????????????? B????????? ,?????:(1)?????? B?????????????????? ,??????????? ,???????????????????????(??3),?? 1????????????????????? d0 ;? 3　??????????????Fig 3　Tracking blocks added on the ultrasoundimage of cross-sectional view of the biceps brachiimuscle for measuring the muscle deformation(2)?? 1???????????????????1???2 ,?? 2??????????????????? ,???????? ,??????????????????????????d ;(3)?????????????????????????????? ,?????????? ,???????????????? d ,?????? B??? 。??SEMG ?? ,??????(RMS)? 。?????? 、RMS???????? SMG ???????4 ～ 6。? 4　?????? 、RMS??????????Fig 4　The curves of normalized torque ,normalized RMS and the change rate of muscle thickness?? 4? ,??????? —???? ,?????????? ,????????????? ,???????????? 。?? ,????? ,????????????? ,???? ,???? ,???????????? ,??????? ,??????????????? 。?? ,?? —??????????????[ 6] ,??????????????????????。??????RMS?????????????? ,?????? ,?????????? 。? 5　???????????? RMS???Fig 5　The plot of the change rateof muscle thickness versus normalized RMS? 6　?????????????????Fig 6　The plot of the normalized torque versusthe change rate of muscle thickness? 5???????? SMG ? SEMG ? RMS?????? ,?? x ???MVC ? RMS???? RMS? , y ????????? SMG。??????? ,???????(2)??????? ,???????????????????? 。?? y???????? SMG , x ?? MVC ? RMS ???? RMS? 。y=a(1-e-bx) (2)? 6???????? ∑MΓ???????????? 。??????(3),?????????????????????????? ,??ξ???????? ∑MΓ, Χ?? MζX???????????。y =ax2 +bx (3)4　??????????????????(2)、(3)?????? ,??????? ,???????????? ,170　　　　　　　　　　　　　　　　　　　　　　　　? ?? ?? ?? ?　　　　　　　　　　　　　　　　　　　　　? 24???????????? 、???????????????3????? ,??7??? ,???15??? ,?????????? 1。? 1??(2)、(3)??????Table 1　The stati stic result of expressions(2)and(3)???? ???????(???)?????????(???)?????????(???)??????? SMG? RMS???????(?? 2)0.93±0.043(0.84±0.029)0.91±0.34(1.51±0.40)0.14±0.063(0.27±0.085)??????? SMG?????????????(?? 3)0.96±0.013(0.94±0.008)7.32±1.27(8.61±1.89)0.11±0.024(0.13±0.016)　　?????? ,????????????SMG 、?? 、SEMG?????;?????????????? ,????? ,SEMG??????????? 、?? ,?? SEMG??????????????;SMG????????????????? ,????????????(3)????? ,?????????????????? ,?? ,?????????????????????????? 。??????????????????????? ,???????????? 、????????? 、SEMG 、???????????? ,???????????????? , ???? SMG 、SEMG???????????? 。???? ,???????????????????????????? ,??????????????????????????????。????:[ 1] Zecca M , Micera S , Carrozza MC , Dario P.Control of multifunctional pros-thetic hands by processing the electromyography signal [ J] .Crit RevBiomed Eng ,2002 , 30(4-6):459-485.[ 2] ??,??? ,??? ,?.??????????[ J] .????????, 2004 , 28(4):271-276.[ 3]Misuri G ,Colagrande S , Gorini M , et al.In vivo ultrasound assessment ofrespi ratory function of abdominal muscles in normal subjects[ J] .Eur Re-spir , 1997 , 10:2861-2867.[ 4]Masamitsu Ito ,Yasuo Kawakami , Yoshiho Ichinose.Nonisometric behaviorof fascicles during isometric contractions of a human muscle[ J] .Journal ofApplied Physiology , 1998 , 85:1230-1235.[ 5] Roy RR , Bodine-Fowler SC , Kim J , et al.Architectural and f iber typedistribution properties of selected rhesus leg muscles:feasibility of multi-ple independent biopsies[ J] .Acta Anatomica (Basel), 1991 , 140:350-356.[ 6] Hodges PW , Pengel LHM , Herbert RD.Measurement of muscle contractionwith ultrasound imaging[ J] .Muscle and Nerve , 2003 ,27(6):682-692.[ 7]McMeeken JM , Beith ID ,Newham DJ.The relationship between EMG andchange in thickness of transversus abdominis[ J] .Clinical Biomechanics ,2004 , 19(4):337-342.[ 8]?? ,??? , ????.???(SMG)?????[ J] .???? ,2005 , 24(1):29-33.(????:2005-05-10)171? 3?　　　　　　　　　　　　　　　　　　??? ,?.?????????????　　　　　　　　　　　　　　　　　　

The measurement of skeletal muscle with multi-parameters by sonography

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