Kimiyyar da ke Bayan Wanka Kankara: Yadda Fuskantar Sanyi Ke Haifar da Murmurewa

Wanka a kankara, ko kuma nutsewa cikin ruwan sanyi (CWI), sun zama muhimmin abu a cikin ka'idojin murmurewa na wasanni. Amma me ke faruwa daidai lokacin da ka nutsar da jikinka cikin ruwan ƙanƙara? Bari mu raba hanyoyin ilimin halittar jiki da ke aiki.

 

1. Tashin zuciya nan take

Idan jikinka ya kai yanayin zafi ƙasa da 15°C, jijiyoyin jini da ke kusa da saman fata suna takura da sauri. Wannan martanin "matsin sanyi" yana rage kwararar jini zuwa tsokoki, yana rage kumburi da kumburi. Bincike ya nuna cewa wannan tsari na iya rage tarin sharar metabolism da kashi 40% bayan motsa jiki, yana dakatar da yaɗuwar ƙananan hawaye a cikin zaruruwan tsoka.

 

2. Tsarin Hormonal da Jijiyoyi

Fuskantar sanyi yana haifar da sakin norepinephrine, wani sinadari mai rage damuwa wanda ke kara mai da hankali kuma yana rage fahimtar ciwo. 'Yan wasa sun bayar da rahoton raguwar jin zafi da kashi 30% bayan wanka na mintuna 10 a kankara. Tsarin jijiyoyi na parasympathetic shima yana aiki, yana rage bugun zuciya da bugun 15-20 a minti daya don adana kuzari.

 

3. Hyperemia Mai Sauƙi (Tasirin Maimaitawa)

Ga sihirin: Bayan fita daga cikin ruwan kankara, jijiyoyin jini masu tauri suna faɗaɗawa da ƙarfi, suna cika tsokoki da jini mai yawan iskar oxygen. Wannan tasirin "rufewa" yana ƙara yawan fitar da ƙwayoyin lymphatic, yana cire cytokines masu kumburi sau biyu cikin sauri fiye da murmurewa ba tare da aiki ba. Ƙungiyoyin NBA galibi suna haɗa wankan kankara da wanka mai dumi na mintuna 5 don ƙara yawan wannan zagayawar jini.

 

4. Daidaitawa na Dogon Lokaci

Wanka kankara akai-akai (sau 2-3 a mako) na iya ƙara yawan mitochondria a cikin ƙwayoyin tsoka, yana inganta juriya. Duk da haka, 'yan wasa masu ƙarfi su yi hankali: Shakar sanyi na yau da kullun na iya canza nau'in zare na tsoka daga fast-twitch (fashewa) zuwa slow-twitch (juriya), wanda hakan zai iya hana samun ƙarfi.

 

Shawara ta Musamman: A zabi ruwa mai zafin digiri 10-12°C, mintuna 8-15 a kowane zaman. A guji tsawaita lokacin da ake sha (fiye da mintuna 20) don hana rashin isasshen iska a jiki.

 

Maganin mura ba wai kawai wani sabon salo ba ne—kayan aiki ne da kimiyya ta goyi bayan don inganta murmurewa. Kawai ku tuna: Daidaito shine mabuɗi.