Ukulimala kwamazinyo kuvamile ekukhuphukeni kwamadwala, okuyinto enengqondo enikezwe ukucindezeleka lo msebenzi ubeka kumadijithi ngenkathi uhamba ngezindawo ezingalingani futhi usekela isisindo somzimba wakho wonke. Kodwa-ke, ukulimala okwenzekayo kungaba okungavamile, hhayi nje ukugaxa komunwe noma ukuhlukaniswa kwamalungu.
Esinye sezilimala ezingavamile okwenzekayo, futhi kubonakala cishe kuphela ekukhuphukeni kwamadwala, kubizwa ngokuthi ukuphuka kwe-pulley digital.
Isizathu esenza lokhu kubangelwa umshini wezintambo namagatsha omunwe kanye nendawo ethize iminwe ibanjwe ngenkathi kukhwela idwala.
Omunye umsebenzi wezemidlalo okwenziwe lokhu kulimala kunama-pitchers e-baseball. Amandla asebenza ngomunwe ngokusobala ahluke kakhulu nalezi zinto ezimbili, kodwa bobabili babeka ukucindezeleka okukhulu emipuleni yomunwe.
Amapulisi Amanwe
Wonke umuntu unezakhiwo eminwe yakhe ebizwa ngokuthi ama-digital pulleys (odokotela bavame ukusebenzisa amagama "amanani" kanye "nomunwe" ngokushintshana). Lezi zindwangu zedijithali ziyizinhlaka ezikhethekile ezibamba amathenda emathanjeni eminwe. Ngaphandle kwalezi zindwangu eminwe, inkinga ebizwa ngokuthi i-bowstringing ye-tendon izokwenzeka.
Ama-tendons yizinhlaka ezihlanganisa imisipha emathanjeni. Uma izivumelwano zesikhumba, zidonsa i-tendon, ehogela ithambo. Emkhawulweni ophezulu, imisipha ye-contract forearm, idonsa ama-flexor tendon of iminwe, okwenza iminwe yenkontileka ibe yintonga.
Ngaphandle kwama-pulleys endaweni ephethe amathenda phezu kwethambo, ama-tendon ayodonsela phansi entendeni yesandla, angasivumeli ukuba sakhe isibhakela. Lo msebenzi ufana nomsebenzi we-pulley we-crane ophakamisa into enzima.
Umunwe ngamunye unama-pulleys ayisishiyagalombili, kodwa nje kuphela amabili kubo abonakala bebaluleke kakhulu ekuvimbeleni ukuqhutshwa kwezintambo zomunwe.
Uma umuntu ephuca i-pulley, angase asekele izinhlobo ezihlukahlukene zokulimala kusuka kumzila olula we-pulley ukuphuka kwama-pulleys amaningi kudijithi eyodwa.
Ezimweni ezimbi kunazo zonke, lapho izintambo zikhona, i-tendon ingase isuse emunwe lapho yenza inkinobho.
Izimpawu zokukhishwa kwamathambo
Izibonakaliso ezivame kakhulu zokulimala kwamanxeba zihlanganisa:
- Ubuhlungu ehlangothini lwesandla somunwe nangomusa ngesineke
- Ukuvuvukala komunwe
- Ukubunzima ukwakha isibhamu
- Ukuzwa "i-pop" ngesikhathi sokulimala
Kubalulekile ukusola ukulimala kwe-pulley digital ehlolwe ngumchwepheshe esikhathini esiseduze (ezinsukwini ezimbalwa kuya kwesonto) ngemuva kokulimala. Nakuba ukwelashwa okuphuthumayo ngokuvamile akudingeki, ukwelashwa okuphuzile (amasonto noma izinyanga kamuva) kungaholela emiphumeleni engaphumelelanga. Isici esibaluleke kunazo zonke ekuhloleni komtholampilo ukucacisa ukuthi kukhona yini ukukhishwa kwamathenda ngenxa yokulimala kwe-pulley. Uma kungenjalo, ukwelashwa kuvame ukuvikelwa okulula kuze kube yilapho ukuvuvukala nobuhlungu beyeke.
Ngokuvamile, idijithali eliphakathi noma indeli ingumunwe olimele. Amapulangwe amabili asemqoka eminwe abhekwa i-A2 kanye nama-pulsay A4. Ebalimeni bezintaba, noma kokubili kulawo makhupha angalimala.
Ngokuvamile kuma-pitchers e-baseball, ukulimala kuhlangene ne-A4 pulley.
Izivivinyo ezikhethekile zokuzicabangela zingenziwa kuzo kokubili ukusizwa nokuxilongwa nokuhlela ukwelashwa. I-x-ray ingaba usizo ukukhipha ezinye izimbangela zobuhlungu bomunwe kufaka phakathi ama- sprains kanye nokwahlukana komunwe . Ukuhlolwa kwe- MRI kuyasiza futhi, ikakhulukazi uma indawo noma ubunzima bokulimala akucaci. Ngesinye isikhathi i-MRI izokwenziwa ngomunwe okhethwe ngokuqondile, bese ugobile, ukubona ukuthi kukhona yini i-bowsteringing ye-tendon.
Ukwelapha
Uma kunezintambo, ukuphathwa ngokucophelela kokulimala kudinga ukuthi kwenzeke.
Lokhu akusho ukuthi ukuhlinzeka njalo kuyadingeka, kodwa kunezici ezikhethekile zokwelapha ezingavumela ukuthi amapulisi aphuluke kahle. Kulezi zimo lapho kune-pulley eminingi ephuka noma uma kukhona ukwelashwa okulibalekile kufanele kwenziwe ukuhlinzwa.
Ngokuphathelene nokubuyela emisebenzini, lokhu kuhluka kakhulu ngobukhulu bokulimala. Ngemibala emincane ye-pulley, umsebenzi ogcwele ungabuyekezwa ngokushesha nje lapho ukuvuvukala nobuhlungu beyeke. Ukuphuka okugcwele okuphathwayo ngaphandle kokuhlinzwa, isikhathi sokwelashwa ngokuvamile phakathi kwezinyanga ezintathu noma ezintathu. Kubantu abadinga ukwakhiwa kabusha kokulimala kwe-pulley, kungase kube nemingcele kuze kube yonyaka kusukela ngesikhathi sokuhlinzwa.
> Imithombo:
> Goldfarb CA, Puri SK, Carlson MG "Ukuxilongwa, Ukwelapha, Nokubuyela Emidlalweni Yokulimala Okuyisine Yezemidlalo Zesandla Nekhono" J Am Acad Orthop Surg. I-2016 Dec; 24 (12): 853-862.