I-latissimus dorsi muscle iyinhlanzi enkulu, ephindwe kathathu ephindaphindiwe ekusizeni ukwenza izinto ezifana nokudonsa, ukubhukuda nokuphefumula. Ama-lats asendaweni ephezulu, okusho ukuthi kubonakala ngokucacile (uma isikhumba sisusiwe).
Ukuze ukhulume ngenye indlela, akudingeki ukuba ususe amaqabunga emisipha ukuze uthole ama-lats. Futhi sinenhlanhla ngenxa yokuthi thina singabasebenzi bezokwelapha, (uma sibheka abantu abanezinhlanzi ezithuthukile kahle) akudingeki ukuba ususe isikhumba ukuba ubone izakhi; esikhundleni salokho, ungabona lo muscle obalulekile emuva ngokuma kwawo.
I-latissimus dorsi muscle ivame ukubizwa ngokuthi "ama-lats" noma i-latissimus emfushane.
Latissimus Dorsi Indawo
Ngokuvamile, nakuba kungenjalo ngaso sonke isikhathi, ukuphela komfutho kunamathemba. Lezi zindawo zokunamathiselwe ziyaziwa njengemvelaphi nokufakwa kwesisipha.
Uma kuziwa kumaLats, imvelaphi inzima, kodwa ukufaka kulula.
Ngaphezulu, umsila we-lats uvela e-vertebrae engezansi eyisithupha kanye nezimbambo ezintathu noma ezine zokugcina. Ingxenye yemvelaphi ihlanganisa ne- thoracolumbar fascia ezingeni le-vertibrae ye-lumbar ne- sacral , kanye nengxenye yesithathu yangaphandle yengxenye yangaphandle yesifuba sakho se-hip. Futhi ekugcineni, umsuka wamathambo uhlanganisa kancane kancane kancane kwe-angle engezansi yehlombe lakho.
Njengoba izingxube zezinhlanzi zamangqamuzana zikhula kusukela emvelaphi kuya endaweni yokufaka (ukufakwa kwamathambo kufakwe engxenyeni yangaphakathi yethanga lakho elingenhla, ngezansi kwehlangothini lwehlombe) bafaka iphuzu.
Lo mvelaphi omude ube yizinhlobo ezifakiwe zokufakelwa kwe-muscle, isimo se-triangular-like.
Umsebenzi we-Latissimus Dorsi
Ama-"lats" anamandla akusiza ukuthi usebenzise izingalo zakho ukudonsa umzimba wakho isisindo. Izibonelo ezinhle zemisebenzi esebenzisa amathangi kakhulu afaka ukwenza ama-chin-ups, ukukhuphuka kwamadwala, nokubhukuda.
Amathangi nawo asiza ngenqubo yokuphefumula.
Babizwa ngokuthi "imisipha yokuphefumula," okusho ukuthi bathuthukisa ukunyakaza kwe-trunk ngesikhathi sokuphuza nokuphumula. Benza lokhu ngokuphakamisa (ukwandisa) umjikelezo wezintambo zomhlanga uma uvula, okungase kwandise umthamo womoya ongena emaphashini akho. Ngesikhathi sokuphefumula, imisipha ye-latissimus dorsi isiza ukunciphisa umjikelezo we-trunk, okungaba nomthelela wokucindezela umoya ngaphezulu.
Njengoba isiqu sakho sihleli, ama-lats aphendulela ingalo yakho, ayisondeza emzimbeni womzimba wakho futhi adlulisela isandla sakho sehlombe emuva (okufana nokubuyisela ingalo yakho). Bangakwazi ukwenza lezi zintuthuko ngokwehlukana noma ngokubambisana omunye nomunye.
Ezinye izinto i-latissimus dorsi yenza ukuletha ibhande lonke lehlombe (elibizwa ngokuthi ukucindezeleka), kanye nokusiza esenzweni sokuguqa eceleni (okuthiwa i-lateral flexion). Uma zombili izilwane zisebenzisana ngesikhathi esifanayo zisiza ngokugubha umgogodla (obizwa ngokuthi i- hyperextension ) futhi ngokugubha isikhumba sangaphakathi .
Izinkinga ze-Latissimus Dorsi
I-muscle ebuthakathaka ebuthakathaka ingaphazamisa ukuletha ingalo yakho emzimbeni wakho noma emzimbeni wakho engalweni yakho. Ukuntula amandla kungase kuphazamise ikhono lakho lokushintsha isikhala sakho ngokuhamba kwesikhathi.
Uma ama-lats akho eqinile noma afushane, kuyoba nzima ukuthatha ingalo yakho phambi kwakho, noma ngaphandle. I-short latissimus dorsi muscle ijwayele ukugcina ibhande lakho libheke phansi futhi liqhubeke.
Uma une-curliosis (i-curve C), uhlangothi olulodwa lwamathambo akho lwama-lats cishe luzoba nzima kunezinye. Uma une-kyphosis, ingxenye yangaphambili yamathambo akho cishe uyoqina.
> Imithombo:
UKendall, uFlorence Peterson, uMcCreary, u-Elizabeth Kendall, no-Provance, uPatricia Geise. Imisipha Ukuhlola nokusebenza nge-Posture and Pain. Yesithathu. Baltimore, Maryland: Williams & Wilkins, ngo-1983.
Latissimus Dorsi. I-GP Notebook iwebhusayithi.