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A wide, softly lit editorial still life on a warm off-white linen surface. At the center-left, a matte ceramic bowl holds a small mound of fine golden-yellow quercetin powder, with a few scattered capsules beside it. Next to the bowl sit fresh red onions (one halved to show its translucent purple layers), a few capers, and a small cluster of ripe apples with the skin on, all natural quercetin sources. On the right side of the frame, a sleek matte-black dumbbell rests at an angle beside a folded slate-gray gym towel. A minimalist glass beaker of water with a thin lemon slice sits just behind it.

Soft diffused morning window light enters from the upper left, casting gentle long shadows and subtle highlights on the powder and glossy onion skin. The color palette is muted and sophisticated: butter yellow, deep plum, warm cream, charcoal, with small touches of sage green from a single eucalyptus sprig. A subtle, out-of-focus background of pale plaster wall and a wooden shelf adds depth.

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Science & Research

1 g/kwana Quercetin Kafin Horon Eccentric: Tasirin IGF

Dr. Gymbro · · 4 min read

Kawo Sha'awa: Wani Flavonoid Daga Shuke‑shuke Ya Sauya Tsarin Farfadowa

Kun taɓa jin zafi da ke biyo bayan wani horon eccentric mai ƙarfi. Hannu na jin kamar an matse shi da siminti, kuma yana ɗauke da kumburi har kwanaki da dama. Wani ƙananan bincike da aka wallafa a 2021 a Frontiers in Endocrinology ya binciki ko flavonoid da ke fitowa daga shuke‑shuke, quercetin 1 g a kowace rana tsawon kwana 14, zai iya canza yadda sinadaran jini ke amsa bayan lalacewar tsoka sakamakon motsa eccentric.

Babban sakamakon da aka samu: raguwa a alamomin lalacewar tsoka, raguwa a IL‑6, da canjin lokacin da IGF‑I da IGF‑II ke bayyana. Wannan yana da ban sha'awa, amma a matsayin ƙananan gwaji, dole ne ku karanta cikakkun bayanai kafin yanke hukunci.

Abin Da Masana Suka Aiwatar

Sgrò da abokan aikin sa sun gudanar da gwajin double‑blind mai crossover tare da maza matasa guda goma sha biyu. Kowanne mahalarta ya sha ko quercetin 1 g a kowace rana ko placebo tsawon kwana 14. Bayan haka, an ba su horon da ke haifar da lalacewar tsoka (EIMD) ta hanyar eccentric. Tsarin crossover yana nufin kowanne mahalarta ya zama gwaji da kansa, wanda ke ƙara ƙarfafa sakamakon a ƙananan samfuri.

An ɗauki samfuran jini kafin motsa jiki da a lokuta daban‑daban yayin farfadowa, daga awanni 24 zuwa kwana 7 bayan horon. Ƙungiyar ta auna:

  • Creatine kinase (CK), lactate dehydrogenase (LDH) da myoglobin (Mb) – alamomin plasma na lalacewar ƙwayar tsoka.
  • Interleukin‑6 (IL‑6) – alamar kumburi.
  • IGF‑I da IGF‑II – hormones masu tasiri wajen gyaran tsoka da daidaituwa.

Sakamako #1: Alamomin Lalacewa Sun Ragu

Idan aka kwatanta da placebo, quercetin ya rage sosai matakan plasma na alamomin lalacewar ƙwaya yayin farfadowa:

  • CK: p < 0.005
  • LDH: p < 0.001
  • Myoglobin: p < 0.05
  • IL‑6: p < 0.05

Wadannan sinadarai suna fitowa a jini idan membrane ɗin ƙwayoyin tsoka ya fashe ko ya lalace. Rangwamen su na nufin ƙananan matsala ko saurin warwarewa. Wannan ba yana nufin an kare tsoka gaba ɗaya ba, kuma ba ya nufin aikin ku ya dawo da sauri. Alamomin plasma ba su nuna kai tsaye canjin ƙarfin ko jin zafi ba.

Sakamako #2: Canjin Lokacin Bayyanar IGF

Wannan shi ne ɓangaren da ke jan hankali. A yanayin placebo, tsarin ya kasance al'ada: IGF‑I ya fara tashi a awanni 72, IGF‑II kuma a mako guda.

Bayan shan quercetin, abubuwa biyu sun sauya:

  1. IGF‑I ya tashi da ƙarfi fiye da a placebo.
  2. IGF‑II ta kai kololuwarta a awanni 72, daidai da IGF‑I.

Don haka quercetin bai ƙara ɗaya ba kawai; ya ƙarawa kuma ya hanzarta amsawar hormones masu girma a lokacin farfadowa. Marubutan sun ɗauki wannan a matsayin alamar farfadowa mafi sauri da ƙarfin anabolic.

Me Ya Sa Wannan Ya Zama Mai Ban Sha'awa, Da Me Ya Sa Ya Kamata Ku Yi Shakku

IGF‑I da IGF‑II suna da alaƙa da gyaran tsoka, aikin sel na satelayti, da sake fasalin ƙashi. Samuwar sigina mafi girma da wuri na iya nuna cewa tsoka na farawa ta gyaru da sauri. Wannan tsinkaye ne mai ma'ana, amma har yanzu yana buƙatar ƙarin shaidu.

Matsalolin Da Ke Akwai

  • Samfurin ya ƙunshi maza matasa guda goma sha biyu kacal; sakamakon na iya bambanta ga mata, manya, ko ‘yan wasa masu ƙwarewa.
  • Matsayin IGF a jini ba daidai yake da girman tsoka ba; binciken bai auna girman tsoka ko ƙarfafa ba.
  • Marubutan sun yi amfani da kalmar "karfafa gwiwa" – kalmar da ba ta da ma'ana a wannan yanayi.
  • Gwajin ya duba kayan guda ɗaya (1 g/kwana) da tsawon lokaci guda (kwana 14) kafin wani horon eccentric guda ɗaya – ba a gwada tasirin gaba‑gaba ba.

A taƙaice, abin da aka gani alama ce ta ingantaccen farfadowa, ba hujja ba ce ta ƙara girman tsoka.

Abubuwan Da Za a Iya Amfani Da Su

Abubuwan da za a yi la’akari da su:

  • Idan kuna sha'awar amfani da quercetin, adadin da aka yi amfani da shi a gwajin shine 1 g a kowace rana tsawon kwana 14 kafin horon da ke haifar da lalacewa. Wannan dabarar “pre‑loading”, ba maganin bayan motsa jiki ba.
  • Amfanin da aka fi iya tsammani shi ne raguwa a alamomin plasma na lalacewa da kumburi, ba tabbacin rage zafi ko ƙara girman tsoka ba.
  • Yana yiwuwa ya fi dacewa ga horon eccentric da ba ku saba da shi ba, kamar sabon shiri da manyan negative, ko wasan gudu a ƙasa da ke da yawan ɗaukar nauyi.

Abubuwan da ba za a ɗauka su a matsayin hujja ba:

  • Kada ku yi tsammanin quercetin zai haɓaka girman tsoka kai tsaye.
  • Kada ku ɗauka cewa haɓakar IGF na nufin farfadowa mafi kyau a jikinku.
  • Kada ku yi amfanin da sakamakon gwaji kan mutane 12 a matsayin shawara ga kowa.

Matakai Masu Hankali Na Gaba

  • Ku tattauna da likita ko ƙwararren masanin abinci kafin ku fara ɗaukar kowane kari, musamman idan kuna shan magani ko kuna da wata cuta.
  • Ku ba da fifiko ga abubuwan asali: ƙara nauyi a hankali, samun isasshen furotin, samun barci mai inganci, da adadin kalorin da ya dace.
  • Ku nemi manyan gwaje‑gwaje da suka maimaita sakamakon tare da auna ƙarfin jiki, jin zafi, da ainiƙin canjin girman tsoka.

Kammalawa

Shan quercetin 1 g a kowace rana tsawon kwana 14 ya danganta da raguwa a CK, LDH, myoglobin da IL‑6 bayan horon eccentric, tare da haɓakar martanin IGF‑I da wuri‑wuri na IGF‑II a awanni 72. Wannan ya kasance sakamakon matakin farko, kuma yana buɗe tambaya mai dadi game da yiwuwar flavonoids su tsara jadawalin farfadowa. Har sai an samu manyan gwaje‑gwaje da ke haɗa waɗannan canje‑canjen jini da ainiƙin ƙarfi da girman tsoka, ku ɗauki quercetin a matsayin gwaji mai ban sha'awa, ba a matsayin maganin da zai ba ku zakaru ba.

Original study

Read the original research on pubmed.ncbi.nlm.nih.gov →

This article summarizes published research for general information. It is not medical advice.

DG

Written by

Dr. Gymbro

Dr. Gymbro writes for Dr. Gymbro: science-backed fitness, nutrition & performance.

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