Baatlelete bohle ba nang le phihlelo ba tseba melemo ea ho futhumala hamonate pele ba qala ho ikoetlisa ka matla. Empa ke tsela e molemo ka ho fetisisa ea ho futhumala? Hona joale bolelele kapa matla a mofuthu-a ama karolo ea lipapali joang?
Mesebetsi le boiketlo ba ho futhumala pele ho boikoetliso li 'nile tsa phehisana khang ka litsebi le baatlelete ka lilemo, empa hoo e batlang e le litsebi tsohle li lumellana hore mofuthu oa pele oa ho ikoetlisa o hlile o ntlafatsa tshebetso ea lipapali mme o ka fokotsa kotsi ea kotsi nakong ea matla boikoetliso.
Empa potso e ntse e le - tsela e molemo ka ho fetisisa ea hore moatlelete a futhumetse? Bolelele le matla a mofuthu o futhumetseng o ntse o ntse o phehisana khang le ho phenyekolloa.
Pele ho tlhōlisano, baatlelete ba bangata ba etsa nako e telele e futhumala. Ka mohlala, pele teko ea nako ea libaesekele, u tla fumana hangata baesekele ba futhumetseng ho futhumala ka metsotso e 30 ho isa ho e 60 kapa ho feta. Empa na kemiso ea mofuthu e joalo e ka ntša kotsi ho feta molemo? Phuputso e tsoang Univesithing ea Calgary e fana ka phetoho e ncha ka khopolo ea khale.
Physiology ea Mofuthu
Baatlelete ba bangata ba sebelisa mofuthu ho lokisa 'mele ho ikoetlisa ka matla le ho thibela kotsi. The physiology ka mor'a mofuthu-up e amahanngoa le post-activation potation (PAP), e leng phetoho ea lik'hemik'hale linthong tsa phetoho ea mesifa e bakiloeng ke likhetho tse khutšoanyane tsa mosebetsi o boima oa ho ikoetlisa. Monyetla oa lipapali le likoloi e 'nile ea e-ba ho fumana nako e lekaneng ea matla a ho futhumatsa, hammoho le hore na ke mekhoa efe e tobileng e lokelang ho etsoa nakong ea mofuthu.
Mofuthu o Mokhutšoanyane o ka ba Molemo ka ho Fetisisa
Phuputso e entsoeng ke Univesithi ea Calgary Human Performance Laboratory e fumane hore mefuta e meng ea mesebetsi e futhumala e ka ba molemo ho feta ba bang ha ho tluoa tabeng ea ho ntlafatsa ts'ebetso, le ho lieha mokhathala. Phuputso ea bona e bontšitse hore mofuthu o futhumetseng o ka tlaase ho feta nako e telele le e matla haholo, haholo-holo bakeng sa libaesekele.
Phuputso eo e ne e shebile baeti ba leshome ba tsamaeang ka maoto ba phahameng ba tsamaeang ba etsa mefuta e 'meli ea mofuthu: e leng nako e telele, e matla haholo-mofuthu ea metsotso e 50 e ileng ea tlisa baatlelete ho ea ho karolo ea 95 lekholong ea litekanyetso tsa pelo tsa bona tse phahameng, metsotsoana e futhumetseng eo baeti ba libaesekele ba neng ba e phahamisa ka karolo ea 70 lekholong ea likhaello tsa bona tsa pelo tse phahameng ka ho fetisisa. Bafuputsi ba ile ba lekanya karabo ea contractile ea mesifa le tlhōrō ea matla ea baesekele pele, ka nako le ka mor'a ho futhumatsa.
Phuputso e fumanoeng hore ho futhumala ha nako e khutšoanyane ho fella ka mokhathala o fokolang oa mesifa le karabo e kholo ea lik'hamphani ho feta ho futhumala ha nako e telele. Sena, le sona se entse hore ho be le tlhōrō e kholo ea matla a tsoang har'a baesekele ba tsamaeang ka nako e khutšoanyane. Phapang e ne e le e tsotehang haholo - tlhōrō ea matla e phahameng e ne e le 6.2 lekholong e phahameng, 'me mosebetsi oa kakaretso e ne e le karolo ea 5 lekholong ho feta baesekele ba likoloi ba ileng ba futhumatsa.
Ho latela moqapi oa li-co-author Elias K. Tomaras, phuputso e bontša hore "esita le ho futhumala ho futhumetseng ho ka ba molemo bakeng sa baatlelete ba batlang ho kena PAP."
Moatlelete leha e le ofe ea kenang lipapaling tse hlokang boiteko bo khutšoanyane, bo matla haholo, tse kang liketsahalo tsa mokoloko oa sepakapaka kapa liketsahalo tsa matla, a ka 'na a batla ho fana ka nako e khutšoanyane ho futhumatsa. Sepheo se setle sa ho futhumatsa ke ho kenya chelete e lekaneng le ts'ebetso ea mosebetsi ho khothalletsa PAP ntle le ho theha mokhathala oa mesifa.
Mohlala oa Mofuthu o Chesang
Ka kakaretso, mofuthu o futhumetseng bakeng sa papali e fanoeng ke ho etsa mehato e sebelisoang papaling eo butle-butle, ebe joale o matlafatsa lebelo la pelo le butle ka metsotso e mengata. Ho futhumala hamonate ho tla u tlohela ho oela mofufutso.
Mefuta e meng ea mofuthu-e kenyelletsa mekhoa e matla ea ho etsa lipapali tsa papali ea hau hammoho le mefuta e meng e feletseng ea 'mele le mesifa. Mehlala ea ho futhumala ha mesifa- khanya ho kenyelletsa kemiso ea ts'ebetso ea glute le mofuthu oa mofuthu .
Bakeng sa kemiso e khutšoanyane ea ho futhumatsa, hlahloba lenaneo la thibelo ea kotsi ea ACL . Eketsa ho tlōla ka sekhahla ho qala ho eketsa lebelo la pelo le phallo ea mali.
Ho fihlela lipatlisiso tse ling li etsoa ho theha mekhoa e metle, ho bonahala eka mofuthu o mofuthu o itšetlehile haholo ka moatlelete. Baatlelete ka bomong ba lokela ho leka mekhoa e fapaneng, mekhoa le ho ikoetlisa ho fihlela ba fumana se sebetsang hantle bakeng sa bona.
Mohloli:
Mokhatlo oa Boipheliso oa Maamerika, ho lokolloa ha litaba, ka la 16 June, 2011
Elias K. Tomaras, Brian R. MacIntosh. "Ho fokotsa ho feta: Matšoao a Tloaelehileng a Khathatsang le a Fokolang Litumello Tse Chesang ho Fetisisa Tlhahiso ea Matla a Phahameng." Journal of Applied Physiology e hatisitsoeng ka 5 May 2011 Vol. Che. , DOI: 10.1152 / japplphysiol.00253.2011