Extract ɗin Girbin Kofi: 200 mg Caffeine Ya Ƙara Aikin Keke da Kashi 4.6 %

Miligran 200 mg na caffeine da aka samu daga cikakken extract ɗin ‘coffee cherry’ ya sa ‘yan wasan keke masu horo su ƙara aikin su a gwajin minti 15 mai ƙarfi. Sai dai ba a ga wannan extract ya sa tsokoki su sake cika glycogen da sauri ba. Wannan sakamakon ya fito ne daga sabon gwaji da aka gudanar a mujallar Journal of the International Society of Sports Nutrition (Pavis da abokan aiki, 2026), kuma yana da amfani ga masu neman sabon “superfruit” na pre‑workout da kuma ga waɗanda suka ji labarin cewa coffee cherry na taimakawa wajen cika glycogen.

Menene Coffee Cherry Extract a Gaskiya?

“Coffee bean” ita ce ƙwaƙwalwar ‘seed’ na ‘fruit’. ‘Fruit’ ɗin da ke kewaye da ita, wato coffee cherry, a mafi yawan lokuta ana watsar da shi yayin sarrafa kofi. Extract da aka gwada a nan an samo shi daga cikakken Coffea arabica cherry, inda aka tsarkake shi don caffeine da polyphenols, ciki har da chlorogenic acids. Kowane ƙwaro ya ƙunshi 200 mg caffeine da 15 mg polyphenols.

Wannan adadin caffeine ya kasance ƙasa da na yau‑da‑kullum a fannin gina jiki. Masu binciken suna son sanin ko samfurin da ke ɗauke da sinadarai da dama, wanda aka samo daga ‘whole‑fruit’, zai iya yin abubuwa biyu: (i) ƙara aikin jiki, da (ii) saurin sake cika glycogen a tsokoki.

Yadda Aka Gudanar da Binciken

Tsarin gwajin ya ƙunshi ƙarfi, amma ƙungiyar ‘participants’ ta kasance ƙanana.

• Tsari: gwaji na randomized, double‑blind, placebo‑controlled crossover
• Masu halarta: ‘trained cyclists’ 12 (maza 11, mace 1) da ke da V̇O₂max na 55 ± 2 mL·kg⁻¹·min⁻¹
• Gwajin motsa jiki 1: minti 30 a kan cycle ergometer a kimanin 79 % V̇O₂max, sannan a bi da gwajin minti 15 na sauri (TT1)
• Sake dawowa: an ba su ƙarin abinci mai gina jiki (1 g/kg nauyin jiki na carbohydrates) tare da ɗaukar ƙarin kwaya, sannan a gudanar da gwajin minti 15 na ƙarshe (TT2) a safiyar gobe
• Ma’auni: samfurin jini a duk lokacin gwaji, da biopsies na tsoka bayan TT1 (0 h), sannan a sa’o’i 4 da 24

Saboda kowane ɗan ƙwallon ya sha ƙwaya biyu – ɗaya da extract, ɗaya da placebo – kowanne mutum ya kasance a matsayin kulawar kansa. Wannan shi ne babban ƙarfin gwajin a wannan ƙaramin ƙungiya.

Sakamakon Babba: Ƙarin Aiki, Ƙarancin Jin Ƙoƙari

Gwajin jini ya tabbatar cewa an shaƙa supplement ɗin. Matakan plasma na caffeine da chlorogenic acid sun tashi sosai idan aka kwatanta da placebo yayin motsa jiki da kuma dawowa (p < 0.001).

Lambobin aikin sun bi sahu. A gwajin minti 15, ‘yan wasan keke sun samar da 4.6 % ± 1.5 % ƙarin aikin jimla tare da extract: 3.14 ± 0.15 kJ/kg vs. 3.02 ± 0.17 kJ/kg a placebo. Girman tasiri (Hedge’s g) ya kai 0.8 (95 % CI 0.2 zuwa 1.4), wanda ke nuni da tasiri mai girma, duk da cewa fadin interval ɗin na nuna ƙuncin ƙididdiga saboda ƙaramin adadi. Banbancin ya kasance statistically significant (p < 0.05).

Haka kuma, perceived exertion ya ragu a lokacin da ake yin aikin daidaito da extract – wato aikin da ya fi sauƙi a zuciya. Matsakaicin respiratory exchange ratio bai bambanta ba, don haka ba a sami alamar canjin hanyar amfani da makamashi ba.

Gaskiyar Gaskiya: Babu Ƙara Saurin Cika Glycogen

Rabin sauran zato bai cika ba. Glycogen a tsoka ya ƙaru sosai a duka rukuni biyu yayin dawowa, kamar yadda ake tsammani idan ‘yan wasa suka ci carbohydrates. Daga awa 0 zuwa 4, glycogen ya tashi da 64 ± 13 mmol/kg dw a placebo, yayin da a extract ya tashi da 44 ± 10 mmol/kg dw. Daga awa 4 zuwa 24, ƙaruwa ta kasance 53 ± 8 da 45 ± 10 mmol/kg dw bi da bi. Marubutan sun bayyana cewa bambancin ba shi da ma’ana, kuma babu wani shaidar da ke nuna cewa extract ya hanzarta sake cika glycogen.

A takaitaccen kalma, caffeine alone tare da carbohydrate na iya ƙara adadin glycogen a wasu bincike‑bincike, amma a wannan gwaji da aka yi da 1 g/kg carbohydrate, ba a ga wani ƙarin tasiri ba. Hakanan takaitaccen (abstract) bai ba da sakamakon TT2 ba, don haka ba za mu iya cewa abin ya shafi aikin safiyar gobe ba.

Me Ya Sa Ya Kamata Ka Yi Kulawa?

• Karamin samfur: Mutane 12 ne kawai, mace ɗaya a ciki – wannan na rage yanda za a iya amfani da sakamakon ga al’umma.
• Babu rukuni na caffeine kai tsaye: An kwatanta extract da placebo ne kawai, ba da caffeine na 200 mg ba. Don haka ba mu san ko ribar ta samo ne daga caffeine ne, polyphenols ne, ko haɗa su ba.
• Samfur guda, ƙima guda: Sakamakon ya shafi wannan takamaiman extract ɗin, ba dukkan kayayyakin coffee‑fruit ba.
• Tallafin masana’anta: An samu kuɗi daga FutureCeuticals, kuma ma’aikata uku na kamfanin sun kasance co‑authors. Marubutan daga Jami’ar Exeter sun ce sun ci gaba da cin gashin kansu a fassara sakamakon. Gwajin an riga aka yi rijista (NCT05404841), wanda ke da fa’ida.
• Gwajin ƙanƙara: Gwajin minti 15 ba lallai ya wakilci tsere na sa’o’i da dama ko horon ƙarfi ba.

Abubuwan Da Za Ka Iya Amfani Da Su

• Ƙwaro: An gwada 200 mg caffeine da 15 mg polyphenols daga extract, an sha shi kafin motsa jiki. Wannan caffeine yana daidai da kusan kofin kofi biyu (musamman idan an yi kofi mai ƙarfi).
• Lokaci: A wannan bincike, aka sha supplement ɗin kafin fara motsa jiki. Ba a fayyace ainihin lokacin da aka ɗauka ba, don haka a bi umarnin alamar kayayyaki da kuma abin da ya taɓa aiki a gare ku.
• Wanda zai fi amfana: ’Yan wasa masu juriya da ke son ƙarin aiki da adadi ƙananan caffeine, ko wadanda ke son samfurin “whole‑fruit” maimakon ƙwayoyin caffeine kaɗai. Ya dace a gwada shi a horo, ba a ranar gasa ba.
• Wanda ya kamata ya guje shi: Mutanen da ke da caffeine‑sensitivity, matsalolin damuwa, matsalolin barci, matsalolin bugun zuciya ko hawan jini, masu ciki, ko waɗanda ke horo a daren zafi su yi shawara da likita ko su guji.
• Abin da ba zai yi ba: Kada ku yi tsammanin zai hanzarta cika glycogen. Don farfadowa da sauri, carbohydrates ne ke da muhimmanci, ba wannan extract ba.

Takaitaccen Bayani

A wannan gwajin crossover ƙanana, amma mai ƙarfi, whole coffee cherry extract da ke ɗauke da caffeine kaɗan ya ƙara aikin minti 15 na tseren keke da 4.6 %, kuma ya rage jin ƙoƙari a yayin aikin daidaito. Da’awar "yana taimakawa cika glycogen" ba a samu goyon baya ba. Akwai buƙatar manyan gwaje‑gwaje da aka kwatanta da caffeine kaɗai don tantance ko fruit‑product na coffee cherry yana da wani fa’ida da caffeine ke rasa.