Kuwedzera kwemashure mushure ndeimwe yezvikamu zviviri zvakanyanya zvepelinus extensor muscle. (Imwe yakagadzirirwa ndeyemukati.) Inonzi Extrinsic uye inongova mushure mutsva yakagadzirwa maererano nenzvimbo yavo, uye basa ravo.
Zvose zviri mukati uye zvinyama zvemashure kumashure zvakakosha pamutsipa wepelinha nokuti vazhinji vehutano hwedu zviri pamberi pedu. Pasina mishonga yakasimba iri kumashure, tingangodaro takagumburwa nekugadzikana uye kufamba kwecheki zvishoma nguva yakawanda.
Izvo zvisikwa zvemashure zvakabuda zviri kune kunze kwemuviri. Izvo, zvakare, dzakakamurwa kuva mapoka maviri - izvo zvisingaiti zvachose zvimiso zvemashure uye zvinyorwa zvepakati zvinoputika shure.
Ichi chinyorwa chinotsanangura kusara kwepamusoro kwemashure ekudzoka kumashure.
Kunyange zvazvo zvakasikwa, zvisikwa zvakasununguka kumashure zvinobatsira kudzora ruoko nekufema uye kutamba basa mukufema, chinonyanya kukosha chekunyanya kwepamusoro ndiyo mafambiro emaoko. (Kufuridza kunonyanya kunetswa nechepakati pekunze.)
Misungo ye Superficial Extrinsic Group
Izvo zvisingaiti zvekare mushure mutsva boka rinoumbwa nemisungo mina: The trapezius, latissimus dorsi, levator scapula uye rhomboid.
Trapezius Muscle
Chimwe chezvinhu zvinonyanya kuzivikanwa pamutsipa wetrapezius ndiyo maitiro ayo. Iti trapezius (inonzi "misungo" yenguva pfupi) ndeye mutsara mukuru wakagadzikana katatu uri pakati nepasi kumusoro, uye pamutsipa nemapfudzi.
Iyi misumbu ine mabasa akawanda, kwete zvishoma zvayo zvinosanganisira kutamisa mapepa (aya ndiwo matsipa-uyewo maitiro matatu-mapfupa-anogara pamushure pebibcage.) Mimwe miitiro ye trapezius inosanganisira kugovera kumusoro nemutsipa kunyorera nekubatsira nekufema.
Tsvina yetrapezius ine zvikamu zvitatu: Ipamusoro, pakati nepasi.
Dzidza zvimwe ruzivo rwakananga pamusoro pezvikamu zvekubatanidza uye mabasa etrapezius muscle .
Latissimus Dorsi
Imwe mutsara wakagadzikana katatu, i-latissimus dorsi, ndiyo inokosha kana iwe ukashandisa maoko ako kuti ubvise muviri wako. Nokuda kwechikonzero ichi, inowanzotumidzwa se "mushambi wekushambira." (I- latissimus dorsi inonziwo "lats" kwenguva pfupi.) Masikati anobatsira nokufema, zvakare.
Mhuka idzi dzinotora nzvimbo yakawanda yepasi munzvimbo yakaderera uye pakati pekupedzisira. Dzinotanga pazasi ye thoracic musana uye nenyundo, thoracolumbar fascia uye chikamu chemukoko wako. Ivo vanobva vagova nepfungwa yakanaka iyo inowedzera mukati memusoro wepamusoro wesimbi.
Levator Scapula
Mufambisi wepapula musimba unotanga pamutsipa uye unofamba uchienda kunonamatira pamakambani epepanhau kumusoro kwemafudzi epafudzi. Basa rayo nderekusimudza mapepa kusvika kumakanzwa. Izvi zvinosuruvarisa nguva dzose "pamusoro" kwevakawanda vedu, izvo zvingaguma nehuwandu hwemutsipa nemutsipa.
Rhomboids
Tsvina ye rhomboid mapurisa maviri akafanana nemararamiro (kurudyi uye kuruboshwe) anowedzera kubva pakati pepakati pepamusoro kusvika kumuganhu wemukati we scapula (bandaupa bone bone).
Rhomboid imwe neimwe inosanganisira chikamu chakakura uye chiduku, chinonzi, pamwe chete rhomboid chikuru uye rhomboid duku.
Kunyange zvazvo zvivako zvakasiyana zvakasiyana, zvikuru uye zviduku zvinogadzira chimiro chega chega uye kuita sendima yekudzikisa mapepa epafudzi pamwe chete.
Nokuda kwechiito chayo (chekudzikisa mapepa mapepa pamwe chete), kutarisa rhomboid yekusimudzira kupedza muviri kunogona kuva pfungwa yakanaka. Chiito chekukanda mapepa akabatana pamwe (kuenda kumutsana) kunogona kubatsira kubvisa migumisiro yekugara pamakombiyuta uye / kana mamwe maitiro ekugadziriswa kwemashure. Kutaura zvazviri, kune chimiro chepamusoro chekuita muviri iwe unogona kuedza iye zvino.
Sources:
Kendall, F., McCreary, E. Zvokudya, P. Misungo: Kuedzwa nekushanda. 4th edition. Williams & Wilkins. Baltimore, MD. 1993.
Moore, K., Dalley, A. Chipatara Chakatungamirirwa Anatomy. Cheshanu. Muparidzi. Lippincott, Williams & Wilkins. 2006. Baltimore. Philadelphia, PA.