Hudu makonni – Mutane arba’in masu farawa a ɗaukar nauyi
A wannan gwaji, ƙungiyar ta ba waɗanda suka ɗauki creatine haɗi tare da horon juriya. Sakamakon ya nuna ƙaruwa a girman tsoka da jin daɗin dawowa, amma ba a samu ƙarin ƙarfin leg‑press 1RM ba idan aka kwatanta da placebo. Wani sabon nazari da aka wallafa a BMC Sports Science, Medicine and Rehabilitation ya ba da wasu dalilai da ke bayyana wannan yanayi.
Binciken a taƙaice
Chen da abokan aikinsa sun gudanar da gwajin bazuwar mai amfani da maganin wucin gadi a matsayin placebo. An horar da maza masu farawa guda 50 a wani shirin juriya na makonni huɗu, inda aka raba su zuwa ƙungiyar da ke sha creatine‑mahadin (CR) da ƙungiyar da ke sha placebo (PL). Maza 40 ne suka kammala gwajin.
Masu binciken sun auna abubuwa da dama:
- Siffofin jiki: adadin tsoka da faɗin ƙafafu
- Matsayin ƙarfin leg‑press 1RM
- Dangantakar hormone: testosterone/cortisol (T/C), creatine kinase (CK), da 3‑methylhistidine/creatinine
- Alamomin aikin koda: serum creatinine da eGFR
- Alamomin gajiya da dawowa na mutum
Gwajin yana da lamba a rijista (ChiCTR2500114236) kuma takardar da aka wallafa na da damar buɗewa.
Abubuwan da suka ƙaru
Idan aka kwatanta da placebo, ƙungiyar da ta sha creatine ta nuna:
- Ƙaruwa mai ma’ana a adadin tsoka da faɗin ƙafafu
- T/C ratio mai inganci – alamar da ke nuni da yanayin anabolic vs. catabolic
- Matsakaicin CK da ya tsaya a mataki mai kyau, alamar damuwar tsoka ƙasa da al'ada
- Alamomin dawowa da suka fi na placebo kyau
Maza da suka sha creatine sun ce suna jin dawowa da sauri kuma sun lura da yanayin hormone da ke tallafawa gina tsoka yayin da suke kara girma.
Abin da bai tasiri ba: Karfi
Leg‑press 1RM ya inganta a dukkan kungiyoyi, amma creatine ba ta kawo ƙarin haɓaka ba a wannan fasali, haka kuma ba a sami bambanci a juriya ba. Idan kana zaton cewa wani “stack” zai tashi maka ɓangaren lambobi a cikin wata guda, wannan gwaji ya nuna ba haka ba ne.
Me ke haifar da girma amma ba ƙarfi?
Takardar ta ba da jerin hasashe, amma babu tabbataccen dalili da aka tabbatar da su. Ga wasu sababbin tunani:
- “New‑bie gains” – Masu farawa kan samu saurin cigaba a dukkan fannoni saboda daidaituwar tsarin jijiyoyi, ƙaruwa a rarraba ƙwayoyin tsoka, da ƙwarewar motsi. Ma placebo ma suna ƙara karfi, don haka tasirin creatine a ƙarfin 1RM na iya zama ƙarami.
- Lokacin gwaji mai gajere – Canjin ƙwayar tsoka yana buƙatar lokaci. A cikin wata guda, mafi yawan ƙaruwa a 1RM yawanci na faruwa ne saboda tsarin jijiyoyi, ba saboda ƙwayoyin tsoka ba.
- Ruwa a cikin ƙwayoyin tsoka – Creatine na jawo ruwa zuwa cikin ƙwayoyin tsoka. Hanyoyin tantance girman tsoka na iya ɗaukar wannan ruwa a matsayin ƙarin tsoka, don haka faɗin ƙafa zai iya zama alamar ruwa ne, ba sabon tsoka ba.
- Dawowa mai ɗorewa – Jin dawowa da sauri ba yana nufin ƙarin ƙarfi a makonni huɗu ba. Zai iya taimakawa wajen horo da ƙarfi mafi tsawo a watanni masu zuwa, amma wannan ba a tabbatar da shi a cikin wannan binciken ba.
Masu binciken sun kuma lura da cewa canjin T/C ratio yana da alaƙa mai kyau da canjin dawowa da leg‑press 1RM. Wannan alaka ce mai ban sha’awa, amma ba ta nuna dalili ba.
Alamar koda: Gamsasshe amma da iyaka
Serum creatinine da eGFR sun kasance a cikin al’ada ga duk mahalarta. Don matasa maza masu lafiya na tsawon makonni huɗu, wannan ya nuna cewa creatine ba ta da illa a kan aikin koda. Sai dai ba a yi magana kan dogon lokaci, manyan ƙima, ko mutanen da ke da matsalar koda ba.
Abubuwan Da Ya Kamata Ku Sani
- Samarwa ƙanana: mutum 40 da suka kammala, maza kawai, kuma sabbin masu horo. Sakamakon na iya wucewa ga mata, ƙwararrun masu ɗaukar nauyi, ko tsofaffi.
- Lokaci gajere: makonni 4.
- Haɗin gwiwa, ba creatine tsaf ba: takardar ba ta bayyana cikakken sinadaran haɗin ba, don haka ba mu san wane sinadari ne ya haifar da tasiri ba.
- Tallafin masana’anta: Hunan Deyang Nutrition Biotechnology da Hunan FoYes Sports Nutrition. Marubuta biyu suna da alaƙa da kamfanonin. Duk da cewa kamfanonin sun ce ba su shiga aikin bincike ba, ya kamata masu karatu su yi la’akari da wannan.
- Ba a wallafa a PubMed ba tukuna: Wannan shi ne ɗaya daga cikin wallafe‑wallafen farko da ba su da cikakken nazarin bayan‑bayan.
Mene ne ya kamata ku yi?
Idan kai sabon ɗaukar nauyi ne:
- Abin da ya fi ƙarfi bisa hujja shi ne creatine monohydrate a 3–5 g a rana. Wannan shawara ta samo asali ne daga manyan nazarce‑nazarce, ba daga wannan gwaji ba. Farashinsa ƙanƙanta, an yi masa bincike sosai, kuma ba ya buƙatar haɗin sinadarai na musamman.
- Lokacin shan ba shi da muhimmanci sosai. Daidaitaccen amfani kullum ya fi muhimmanci fiye da lokacin. Sha shi tare da abinci ko a lokacin horo, duk abin da ya fi maka sauƙi.
- Kada ka yi tsammanin haɓaka mai sauri a 1RM. Wannan gwaji ya nuna cewa a cikin wata guda, ci gaban ka zai fito ne daga horon da kake yi, ba daga creatine ba.
- Stacks ba dole ba ne. Babu hujja da ke nuna cewa haɗin sinadarai da yawa ya fi creatine ɗaya amfani, domin ba a kwatanta su ba. Idan har kana son haɗi don sauƙi, ka duba alamar kuma ka tabbata cewa adadin creatine ya wuce 3 g a rana.
Wanda zai amfana: matasa maza masu lafiya da ke farawa, masu neman hanyar da ta araha da sauƙi don tallafa wa horo, kuma waɗanda ke kula da ci gaba a cikin watanni, ba makonni ba.
Wanda ya kamata ya guje ko ya tuntuɓi likita a farko: mutanen da ke da cutar koda, masu shan magungunan da ke tasiri kan koda, ko duk wani da ke da wata damuwa da ke buƙatar shawarwarin likita. Haka kuma a yi hankali da samfuran da ba su bayyana cikakken sinadarai ba.
Kammalawa
Wannan gwaji ya nuna cewa haɗin creatine na iya inganta girman tsoka da jin dawowa a farkon horo, amma ba ya ƙara ƙarfin leg‑press 1RM a cikin makonni huɗu. Haɓakar girma na iya zama sakamakon ruwa a cikin ƙwayoyin tsoka, kuma ba a fayyace hanyoyin da suka haifar da hakan ba. Don haka ka sanya tsammanin ka a hankali, ci gaba da horo a kai a kai, kuma idan kana son ƙara, fara da creatine monohydrate a cikin tsafta.
