{"id":11385570,"date":"2012-07-15T00:00:00","date_gmt":"2012-07-14T22:00:00","guid":{"rendered":"https:\/\/alertdiver.eu\/uncategorized-cs_cz\/jsou-polocasy-tkani-skutecnost-nebo-fikce\/"},"modified":"2012-07-15T00:00:00","modified_gmt":"2012-07-14T22:00:00","slug":"jsou-polocasy-tkani-skutecnost-nebo-fikce","status":"publish","type":"post","link":"https:\/\/alertdiver.eu\/cs_CZ\/clanky\/jsou-polocasy-tkani-skutecnost-nebo-fikce\/","title":{"rendered":"Jsou polo\u010dasy tk\u00e1n\u00ed skute\u010dnost, nebo fikce?"},"content":{"rendered":"

Kdy\u017e se p\u0159i r\u016fzn\u00fdch setk\u00e1n\u00edch pot\u00e1p\u011b\u010d\u016f diskutuje o dekompresi, \u010dasto zazn\u00ed v\u00fdroky typu: "N\u011bco jako polo\u010das tk\u00e1n\u011b fyziologicky neexistuje, to je pouze matematick\u00fd pojem.” Tak tomu ale nen\u00ed. Polo\u010dasy r\u016fzn\u00fdch postup\u016f a proces\u016f jsou stejn\u011b re\u00e1ln\u00e9, jak re\u00e1ln\u00e9 je ur\u010dov\u00e1n\u00ed st\u00e1\u0159\u00ed kost\u00ed dinosaur\u016f, nebo jak\u00fdm zp\u016fsobem se stanovuje doba, kter\u00e9 je zapot\u0159eb\u00ed k vylou\u010den\u00ed u\u017eit\u00fdch l\u00e9k\u016f z lidsk\u00e9ho organismu. Jedna z mnoha l\u00e1tek, u kter\u00e9 se experiment\u00e1ln\u011b m\u011b\u0159ilo vylou\u010den\u00ed z t\u011bla polo\u010dasov\u00fdm zp\u016fsobem, byl dus\u00edkat\u00fd plyn po proveden\u00e9m ponoru.<\/p>\n

N\u011bkter\u00e9 skute\u010dn\u00e9 polo\u010dasy<\/strong>
Radioaktivita.<\/strong> Za ur\u010ditou a nem\u011bnnou dobu ztrat\u00ed radioaktivn\u00ed l\u00e1tka polovinu sv\u00e9 hmotnosti nebo radioaktivity.
Po uplynut\u00ed stejn\u011b dlouh\u00e9 lh\u016fty z\u016fstane op\u011bt polovina z p\u016fvodn\u011b zbyl\u00fdch 50 procent. Jednotka \u010dasu souvisej\u00edc\u00ed s polovinou \u017eivotnosti ur\u010dit\u00e9 l\u00e1tky se naz\u00fdv\u00e1 polo\u010das rozpadu. Je to tot\u00e9\u017e, jako shora uvedena lh\u016fta pro ztr\u00e1tu\/rozpad poloviny p\u0159\u00edslu\u0161n\u00e9 l\u00e1tky, jen vyj\u00e1d\u0159en\u00e1 jin\u00fdm term\u00ednem. \u010cas, kdy se rozpadne konkr\u00e9tn\u00ed j\u00e1dro, p\u0159edpov\u011bd\u011bt nelze, ale rychlost rozpadu, tedy polo\u010das rozpadu mno\u017estv\u00ed hmoty lze p\u0159edpov\u011bd\u011bt re\u00e1ln\u011b a p\u0159esn\u011b.
Rychlosti rozpadu r\u016fzn\u00fdch radioizotop\u016f jsou navz\u00e1jem velmi odli\u0161n\u00e9. Um\u011ble vytvo\u0159en\u00e9 radioizotopy maj\u00ed \u010dasto polo\u010dasy rozpadu v \u0159\u00e1du mikrosekund. P\u0159\u00edrodn\u00ed radioizotopy mohou m\u00edt polo\u010dasy rozpadu a\u017e mnoho milion\u016f let. Polo\u010dasy p\u0159\u00edrodn\u00edch radioizotop\u016f se pou\u017e\u00edvaj\u00ed k ur\u010dov\u00e1n\u00ed st\u00e1\u0159\u00ed archeologick\u00fdch n\u00e1lez\u016f a ke stanovov\u00e1n\u00ed geologick\u00e9ho st\u00e1\u0159\u00ed fos\u00edli\u00ed, skal a samotn\u00e9 zem\u011b. Tento proces se naz\u00fdv\u00e1 radiometrick\u00e9 ur\u010dov\u00e1n\u00ed st\u00e1\u0159\u00ed.
 <\/p>\n

L\u00e9ky<\/strong>. I metabolismus l\u00e9k\u016f prob\u00edh\u00e1 syst\u00e9mem polo\u010das\u016f rozpadu. T\u011blo pot\u0159ebuje ur\u010dit\u00e9 jednotky \u010dasu (kter\u00e9 lze vypo\u010d\u00edst a n\u00e1sledn\u011b p\u0159edpov\u00eddat), aby se zbavilo poloviny n\u011bjak\u00e9 standardn\u00ed d\u00e1vky. Ve farmakologii se t\u00e9to jednotce \u010dasu b\u011b\u017en\u011b \u0159\u00edk\u00e1 polo\u010das rozpadu. Nicm\u00e9n\u011b polo\u010dasy rozpadu jsou u r\u016fzn\u00fdch jedinc\u016f pon\u011bkud odli\u0161n\u00e9. Plat\u00ed v\u0161ak, \u017ee \u010dasov\u00fd rozsah je v\u00edcem\u00e9n\u011b stejn\u00fd a lze jej ur\u010dit pom\u011brn\u011b p\u0159esn\u011b. Nap\u0159. valium m\u00e1 u mlad\u0161\u00edch lid\u00ed polo\u010das rozpadu 44 hodin (u star\u0161\u00edch je to pon\u011bkud d\u00e9le, ale existuj\u00ed i lid\u00e9, u kter\u00fdch je tento polo\u010das rozpadu krat\u0161\u00ed). To znamen\u00e1, \u017ee 44 hodin po u\u017eit\u00ed d\u00e1vky 5 mg valia je v t\u011ble st\u00e1le je\u0161t\u011b 2,5 mg t\u00e9to l\u00e1tky. \u010clov\u011bk, kter\u00fd valium u\u017e\u00edv\u00e1 denn\u011b, si postupn\u011b vytvo\u0159\u00ed takovou hladinu, \u017ee denn\u00ed p\u0159\u00edjem se shoduje se schopnost\u00ed jeho t\u011bla tohoto l\u00e9ku se zbavit. Tomu se \u0159\u00edk\u00e1 ust\u00e1len\u00fd stav. Hladina klesne, jestli\u017ee tento jedinec p\u0159estane l\u00e9k br\u00e1t, co\u017e bude m\u00edt za n\u00e1sledek n\u00e1vrat p\u0159\u00edznak\u016f. <\/p>\n

R\u016fzn\u00e9 \u010d\u00e1sti t\u011bla reaguj\u00ed na l\u00e9k r\u016fzn\u011b a tak\u00e9 pot\u0159ebuj\u00ed r\u016fzn\u00fd \u010das pro dosa\u017een\u00ed ust\u00e1len\u00e9ho stavu (pot\u0159ebuj\u00ed dost\u00e1vat l\u00e1tku tak dlouho, dokud ji ji\u017e nezadr\u017euj\u00ed) a tak\u00e9 pot\u0159ebuj\u00ed r\u016fzn\u011b dlouhou dobu pro zbaven\u00ed se poloviny d\u00e1vky. V\u0161eobecn\u011b plat\u00ed, \u017ee hladiny v krvi a plazmatu obvykle stoupaj\u00ed i klesaj\u00ed rychleji, ne\u017e hladiny v tuku. Podobn\u011b to plat\u00ed u pot\u00e1p\u011b\u010d\u016f, kte\u0159\u00ed \u010dasto \u0159\u00edkaj\u00ed, \u017ee tuk je p\u0159i dekompresi probl\u00e9m, proto\u017ee zadr\u017euje v\u00edce dus\u00edku. Ale dus\u00edk se tak\u00e9 dost\u00e1v\u00e1 do tuku pomaleji, ne\u017e do jak\u00e9koliv jin\u00e9 \u010d\u00e1sti t\u011bla. Po stejn\u011b dlouh\u00e9 dob\u011b ponoru nabere tuk dus\u00edku m\u00e9n\u011b ne\u017e jin\u00e9 oblasti t\u011bla. Tak\u00e9 je u n\u011bj pomalej\u0161\u00ed \u010das rozpadu. \u010casto sly\u0161\u00edme, \u017ee zjizven\u00e1 tk\u00e1\u0148 \u010din\u00ed probl\u00e9my, proto\u017ee se skrze n\u00ed t\u011b\u017eko uvol\u0148uje plyn. Je si ov\u0161em t\u0159eba uv\u011bdomit, \u017ee se skrze takovou tk\u00e1\u0148 tak\u00e9 obt\u00ed\u017en\u011b dost\u00e1v\u00e1 plyn dovnit\u0159, proto\u017ee m\u00e1 pomal\u00fd polo\u010das rozpadu. Zat\u00edm se nepoda\u0159ilo zjistit, zdali je to ku prosp\u011bchu, nebo sp\u00ed\u0161e nev\u00fdhodou.
 <\/p>\n

A co polo\u010dasy dus\u00edku?<\/strong>
Chcete-li si zn\u00e1zornit transfer radioaktivity nebo valia, m\u016f\u017eete si vz\u00edt milimetrov\u00fd pap\u00edr a vyt\u00fd\u010dit na n\u011bm bod po ka\u017ed\u00e9m \u010dasov\u00e9m intervalu, kdy se m\u00edra radioaktivity nebo koncentrace valia sn\u00ed\u017e\u00ed o polovinu. Tento \u010dasov\u00fd \u00fasek je polo\u010das. Kdy\u017e mezi sebou body spoj\u00edte, dostanete k\u0159ivku, kter\u00e1 je tzv. charakteristikou jednotliv\u00fdch polo\u010das\u016f. Rovnice, kterou se takov\u00e1 k\u0159ivka d\u00e1 vyj\u00e1d\u0159it, se naz\u00fdv\u00e1 exponenci\u00e1ln\u00ed rovnic\u00ed. A co by se stalo, kdybyste se pokusili ud\u011blat stejn\u00fd pokus s body pro dus\u00edk opu\u0161t\u011bj\u00edc\u00ed t\u011blo pot\u00e1p\u011b\u010de? <\/p>\n

Skute\u010dn\u00fd polo\u010das dus\u00edku. Pot\u00e1p\u011b\u010dem vydechovan\u00fd vzduch lze zachycovat do pytl\u00edku, nebo se d\u00e1 trubic\u00ed v\u00e9st p\u0159\u00edmo do analyz\u00e1toru a zm\u011b\u0159it, kolik dus\u00edku odch\u00e1z\u00ed za ur\u010dit\u00e9 \u010dasov\u00e9 jednotky. P\u0159ibli\u017en\u011b takto se odhaduje celkov\u00e9 vyt\u011bs\u0148ov\u00e1n\u00ed dus\u00edku z t\u011bla. Kdyby se zan\u00e1\u0161el \u010das pot\u0159ebn\u00fd pro celkov\u00e9 vyt\u011bsn\u011bn\u00ed dus\u00edku z t\u011bla na milimetrov\u00fd pap\u00edr, v\u00fdsledkem by byla k\u0159ivka. Tato k\u0159ivka se d\u00e1 vyj\u00e1d\u0159it i p\u0159esn\u00fdm po\u010dtem exponenci\u00e1ln\u00edch rovnic. <\/p>\n

Individu\u00e1ln\u00ed polo\u010dasy pro r\u016fzn\u00e9 tk\u00e1n\u011b. K\u0159ivky pro celkov\u00e9 vyt\u011bsn\u011bn\u00ed z t\u011bla, jako v\u011bt\u0161ina slo\u017eit\u00fdch rovnic, neposkytuj\u00ed podrobnosti o vyt\u011bsn\u011bn\u00ed z jednotliv\u00fdch p\u0159isp\u011bvatel\u016f (tk\u00e1n\u00ed). Nedozv\u00edme se z nich, jak mnoho \u010di m\u00e1lo dus\u00edku odejde z ka\u017ed\u00e9 jednotliv\u00e9 \u010d\u00e1sti t\u011bla. R\u016fzn\u00e9 t\u011blesn\u00e9 \u010d\u00e1sti a tk\u00e1n\u011b nab\u00edraj\u00ed i vyt\u011bs\u0148uj\u00ed dus\u00edk r\u016fzn\u011b rychle. P\u0159edpokl\u00e1d\u00e1 se, \u017ee v tom hraje roli i tlak dus\u00edku, kter\u00fd je v jednotliv\u00fdch \u010d\u00e1stech t\u011bla odli\u0161n\u00fd. N\u011bkter\u00e9 \u010d\u00e1sti t\u011bla obsahuj\u00ed dus\u00edku pom\u011brn\u011b m\u00e1lo. P\u0159\u00edli\u0161 velk\u00fd tlak dus\u00edku v n\u011bkter\u00e9 \u010d\u00e1sti t\u011bla (zp\u016fsoben\u00fd dlouh\u00fdm ponorem, nebo p\u0159\u00edli\u0161 rychl\u00fdm v\u00fdstupem) m\u016f\u017ee iniciovat dekompresn\u00ed probl\u00e9m.
 <\/p>\n

Experiment\u00e1ln\u00ed a teoretick\u00e9 d\u016fkazy.<\/strong>
V\u00fdsledky z\u00edskan\u00e9 po kr\u00e1tkodob\u00e9 pr\u00e1ci v podmo\u0159sk\u00fdch \u00fanikov\u00fdch v\u011b\u017e\u00edch a b\u011bhem dlouhodob\u011bj\u0161\u00ed experiment\u00e1ln\u00ed dekomprese p\u0159i pravideln\u00fdch ponorech se stla\u010den\u00fdm vzduchem prok\u00e1zaly, \u017ee n\u011bkter\u00e9 tk\u00e1n\u011b se skute\u010dn\u011b zbavuj\u00ed dus\u00edku rychleji ne\u017e jin\u00e9 a d\u00edky tomu bylo mo\u017eno ur\u010dit pro r\u016fzn\u00e9 \u010d\u00e1sti t\u011bla rychlej\u0161\u00ed a pomalej\u0161\u00ed polo\u010dasy. Difuzn\u00ed vzd\u00e1lenosti jsou ve v\u011bt\u0161in\u011b tk\u00e1n\u00ed mal\u00e9. Jestli\u017ee jsou difuzn\u00ed vzd\u00e1lenosti mezi kapil\u00e1rami mal\u00e9, doch\u00e1z\u00ed zde k \u00fa\u010dinn\u00e9mu “prom\u00edch\u00e1v\u00e1n\u00ed”. V takov\u00e9 tk\u00e1ni pak lze pova\u017eovat v\u00fdm\u011bnu plynu z hlediska polo\u010dasu za pom\u011brn\u011b dobrou. Rovn\u011b\u017e plat\u00ed, \u017ee \u010d\u00edm v\u00edce polo\u010das\u016f pro r\u016fzn\u00e9 t\u011blesn\u00e9 tk\u00e1n\u011b se zjist\u00ed a vezme v \u00favahu, t\u00edm p\u0159esn\u011bji se d\u00e1 p\u0159edpov\u011bd\u011bt tabulka pro celkovou bezpe\u010dnou dekompresi. Jen jeden polo\u010das jako ukazatel pro cel\u00e9 t\u011blo se v sou\u010dasn\u00e9 dob\u011b podle v\u011bt\u0161iny dekompresn\u00edch model\u016f nepou\u017e\u00edv\u00e1.
 <\/p>\n

Nejen \u010d\u00edsla<\/strong>
Tabulky n\u00e1mo\u0159nictva Spojen\u00fdch st\u00e1t\u016f sni\u017euj\u00ed (zaokrouhluj\u00ed) velk\u00fd po\u010det mo\u017en\u00fdch polo\u010das\u016f do seskupen\u00ed podle n\u00e1sobk\u016f minut, nap\u0159. 5, 10, 20, 40, 60, 80, 90, 100 a 120 minut. Jin\u00e9 modely pou\u017e\u00edvaj\u00ed jin\u00e1 minutov\u00e1 seskupen\u00ed.
Ano, polo\u010dasy jsou \u010d\u00edsla. Tato \u010d\u00edsla v\u0161ak ukazuj\u00ed, co d\u011bje ve va\u0161em t\u011ble, nejsou to jen abstraktn\u00ed matematick\u00e9 pojmy. Pomoci t\u011bchto \u010d\u00edsel se jednoduchou matematikou vyjad\u0159uj\u00ed slo\u017eit\u00e9 biologick\u00e9 procesy. A pou\u017e\u00edv\u00e1n\u00ed t\u011bchto \u010d\u00edsel je mnohem pohodln\u011bj\u0161\u00ed, ne\u017e b\u011bh\u00e1n\u00ed za ka\u017ed\u00fdm pot\u00e1p\u011b\u010dem a zan\u00e1\u0161en\u00ed bod\u016f na milimetrov\u00fd pap\u00edr. <\/p>\n

Paraleln\u00ed vyt\u011bs\u0148ov\u00e1n\u00ed plynu. Cestov\u00e1n\u00ed dus\u00edku v tk\u00e1ni m\u016f\u017ee vypadat (a tak\u00e9 prob\u00edhat) jako jednoduch\u00fd matematick\u00fd model, ale je tomu tak skute\u010dn\u011b?
Ne v\u0161echny syst\u00e9my nab\u00edraj\u00ed nebo ztr\u00e1cej\u00ed sv\u00e9 sou\u010d\u00e1sti exponenci\u00e1ln\u011b. A i kdy\u017e dus\u00edk p\u0159ich\u00e1z\u00ed a odch\u00e1z\u00ed v \u0159\u00edzen\u00fdch podm\u00ednk\u00e1ch exponenci\u00e1ln\u011b, praktick\u00e9 faktory a to, co d\u011bl\u00e1te b\u011bhem ponoru, v\u00fdpo\u010dty do jist\u00e9 m\u00edry m\u011bn\u00ed a ovliv\u0148uje. Z\u0159ejm\u011b hlavn\u00edm faktorem, kter\u00fd ur\u010duje polo\u010das p\u0159\u00edslu\u0161n\u00e9 tk\u00e1n\u011b, jek krevn\u00ed tok. D\u016fle\u017eit\u00e1 je tak\u00e9 rozpusnost tk\u00e1n\u011b a krve. A krevn\u00ed tok v\u00fdznamn\u011b ovliv\u0148uje fyzick\u00e1 n\u00e1maha a zm\u011bny teploty b\u011bhem ponoru.
 <\/p>\n

My\u0161lenka, \u017ee ka\u017ed\u00e1 \u010d\u00e1st t\u011bla vyt\u011bs\u0148uje plyn odd\u011blen\u011b, ale ve stejnou dobu, se naz\u00fdv\u00e1 paraleln\u00ed vyt\u011bs\u0148ov\u00e1n\u00ed plynu. Je velmi pravd\u011bpodobn\u00e9, \u017ee ne v\u0161echen plyn difunduje z ka\u017ed\u00e9 \u010d\u00e1sti t\u011bla zp\u011bt do krevn\u00edho \u0159e\u010di\u0161t\u011b paraleln\u011b a odd\u011blen\u011b, aby se pak odstranil exhalac\u00ed. Jestli\u017ee se nach\u00e1z\u00ed oblast s vy\u0161\u0161\u00edm tlakem dus\u00edku t\u011bsn\u011b vedle oblasti s tlakem dus\u00edku ni\u017e\u0161\u00edm, ur\u010dit\u011b bude proudit dus\u00edk z oblasti s vy\u0161\u0161\u00edm tlakem do oblasti s ni\u017e\u0161\u00edm tlakem a nastane postupn\u00e9 p\u0159emis\u0165ov\u00e1n\u00ed z jedn\u00e9 tk\u00e1n\u011b do druh\u00e9. Postupn\u00fd transfer ji\u017e byl zaznamen\u00e1n i p\u0159i pou\u017eit\u00ed mnoha farmaceutick\u00fdch v\u00fdrobk\u016f. A tak\u00e9 je rozd\u00edl v tom, jako dlouhu trv\u00e1, aby se do t\u011bla n\u011bjak\u00e1 l\u00e1tka dostala ve srovn\u00e1n\u00ed s \u010dasem pot\u0159ebn\u00fdm pro jej\u00ed odstran\u011bn\u00ed.
Jako univerz\u00e1ln\u011b platn\u00e9 je pot\u0159eba si tak\u00e9 uv\u011bdomit, \u017ee mnoz\u00ed pot\u00e1p\u011b\u010di jsou v p\u0159\u00edstupu a respektu k pot\u00e1p\u011b\u010dsk\u00fdm pravidl\u016fm a p\u0159edpis\u016fm \u010dasto tak “vynal\u00e9zav\u00ed”, \u017ee to zna\u010dn\u011b ovliv\u0148uje \u0159\u00e1dn\u00fd a vysv\u011btliteln\u00fd transport dus\u00edku. Jin\u00fdmi slovy, na pravidla a p\u0159edpisy prost\u011b ka\u0161lou. To m\u00e1 pak praktick\u00e9 d\u016fsledky.
 <\/p>\n

Praktick\u00e9 d\u016fsledky<\/strong>
Polo\u010dasy jsou v\u00fdpo\u010dty pot\u00e1p\u011b\u010dsk\u00fdch \u010dasov\u00fdch limit\u016f vych\u00e1zej\u00edc\u00edch (krom\u011b jin\u00e9ho) z eliminace dus\u00edku, kter\u00fd se nach\u00e1z\u00ed v t\u011ble v rozpu\u0161t\u011bn\u00e9 form\u011b, tedy ne dus\u00edku, kter\u00fd u\u017e je zase ve form\u011b plynu p\u0159ed vydechnut\u00edm. Jestli\u017ee se tvo\u0159\u00ed bublinky, v\u00fdm\u011bna dus\u00edku u\u017e neprob\u00edh\u00e1 podle zn\u00e1m\u00fdch polo\u010das\u016f. Tady ji\u017e v\u011bt\u0161ina model\u016f dekomprese neplat\u00ed. N\u011bkdy bublinky pomohou dus\u00edk odstranit, jindy to funguje tak, \u017ee kdy\u017e se v t\u011ble za\u010dnou tvo\u0159it bublinky, mohou br\u00e1nit mechanicky i chemicky odchodu dus\u00edku z t\u011bla. \u010c\u00edm se sn\u00ed\u017e\u00ed nebo zabr\u00e1n\u00ed tvorb\u011b bublinek?<\/p>\n

    \n
  1. Pomal\u00fdm v\u00fdstupem<\/li>\n
  2. Za\u0159azov\u00e1n\u00edm bezpe\u010dnostn\u00edch p\u0159est\u00e1vek<\/li>\n
  3. Zdravou kardiovaskul\u00e1rn\u00ed soustavou<\/li>\n
  4. Omezov\u00e1n\u00edm celkov\u00e9ho vystavov\u00e1n\u00ed se dus\u00edku<\/li>\n<\/ol>\n

    To v\u0161e dohromady m\u016f\u017ee v\u00fdznamn\u011b ovlivnit \u010das, kdy m\u00e1 t\u011blo mo\u017enost vyt\u011bsnit dus\u00edk je\u0161t\u011b p\u0159edt\u00edm, ne\u017e se vytvo\u0159\u00ed bublinky, oproti situaci, kdy se t\u011blo napln\u00ed inertn\u00edmi plynov\u00fdmi “bombami”.
     <\/p>\n

    Polo\u010dasy jsou skute\u010dn\u00e9 a plat\u00ed<\/strong>
    M\u00e1me tedy v t\u011ble jak\u00e9si p\u011btiminutov\u00e9, \u0161edes\u00e1timinutov\u00e9, \u010di stodvacetiminutov\u00e9 oblasti? Vskutku je vysoce pravd\u011bpodobn\u00e9, \u017ee t\u011blo m\u00e1 \u010d\u00e1sti, kter\u00e9 nab\u00edraj\u00ed nebo ztr\u00e1cej\u00ed polovinu sv\u00e9 dus\u00edkat\u00e9 z\u00e1t\u011b\u017ee po dobu 5, 60 a 120 minut. Samoz\u0159ejm\u011b, \u017ee takov\u00e9 \u010d\u00e1sti nezahrnuj\u00ed cel\u00e9 t\u011blesn\u00e9 org\u00e1ny, jak\u00fdmi jsou srdce nebo \u017ealudek, ale jedn\u00e1 se o podobn\u00e9 tk\u00e1n\u011b, kter\u00e9 se nach\u00e1zej\u00ed v cel\u00e9m t\u011ble.
    Mo\u017en\u00e1, \u017ee cel\u00e9mu syst\u00e9mu vyt\u011bs\u0148ov\u00e1n\u00ed dus\u00edku z t\u011bla je\u0161t\u011b nerozum\u00edme \u00fapln\u011b p\u0159esn\u011b a beze zbytku, proto tak\u00e9 nedok\u00e1\u017eeme zabr\u00e1nit dekompresn\u00ed nemoci, ale v\u011b\u0159te, \u017ee polo\u010dasy jsou skute\u010dn\u00e9 a plat\u00ed.<\/p>\n","protected":false},"excerpt":{"rendered":"

    Kdy\u017e se p\u0159i r\u016fzn\u00fdch setk\u00e1n\u00edch pot\u00e1p\u011b\u010d\u016f diskutuje o dekompresi, \u010dasto zazn\u00ed v\u00fdroky typu: "N\u011bco jako polo\u010das tk\u00e1n\u011b fyziologicky neexistuje, to je pouze matematick\u00fd pojem.” Tak…<\/p>\n","protected":false},"author":1,"featured_media":11374253,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[384],"tags":[],"authors":[1227],"class_list":["post-11385570","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-clanky","authors-jolie-bookspan-cs_cz"],"acf":[],"yoast_head":"\nJsou polo\u010dasy tk\u00e1n\u00ed skute\u010dnost, nebo fikce? - Alert Diver<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/alertdiver.eu\/cs_CZ\/clanky\/jsou-polocasy-tkani-skutecnost-nebo-fikce\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Jsou polo\u010dasy tk\u00e1n\u00ed skute\u010dnost, nebo fikce? 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