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Nutrition

Kreatin Sakdurunge Latihan Nambah Kekuatan—Ananging Ana Cathetan

Dr. Gymbro · · 4 min read
#strength training #pre workout #creatine #pilot study #creatine monohydrate #supplement timing #nutrients

Sampeyan wis krungu yen kreatin kuwi efektif. Nanging apa penting nalika sampeyan ngombé? Siji studi crossover acak sing diterbitake ing Nutrients nyoba pitakonan iki, lan dosis sadurunge latihan metu minangka pemenang. Sadurunge sampeyan ngatur maneh jadwal suplemen, waca cathetan cilik iki: iki studi sing cilik banget lan mung nyoba siji dosis.

Penemuan Utama: Kreatin Sakdurunge Latihan Ngangkat Beban Luwih Akeh

Para peneliti sing dipimpin Ben Maaoui mbandhingake kreatin sing dijupuk sakdurunge, sajrone, utawa sawise sesi latihan tahanan karo plasebo lan kontrol tanpa suplemen. Judhul studi kasebut yaiku "Acute Creatine Ingestion Before Resistance Training Enhances Strength Performance More than Ingestion During or After Training: A Randomized Crossover Pilot Trial."

Nomer utama saka abstrak:

  • Bench press: efek kondisi signifikan (F = 4.91, ηp² = 0.33, p = 0.035)
  • Back squat: efek kondisi signifikan (F = 33.22, ηp² = 0.77, p < 0.001)
  • Ing loro‑loro, kinerja luwih apik karo kreatin sakdurunge latihan (CrB) tinimbang karo plasebo utawa kontrol (p < 0.05)

Kinerja diukur minangka total beban eksternal sing diangkat (kg) sajrone enem set kanthi intensitas 80 % saka 1‑RM kanggo saben latihan. Penulis nyimpulake manawa kreatin sakdurunge latihan digandhengake karo peningkatan kinerja kekuatan akut tinimbang wektu liya. Abstrak nyatakake perbandingan pasca‑hoc karo plasebo lan kontrol kanthi cetha, dadi iki angka sing paling pasti kanggo dipetik.

Dosis lan Wektu Persis Saka Makalah

Protokolé prasaja:

  • Dosis: 0,1 g per kg bobot awak kreatin monohidrat (utawa plasebo)
  • Wektu sing menang: sakdurunge sesi latihan kekuatan
  • Fase loading: ora ana. Penulis nerangake panggunaan pra‑latihan "tanpa fase loading."

Dosis 0,1 g/kg kira‑kira dadi 8 g kanggo wong bobot 80 kg (176 lb). Angka iki perkiraan péranganing matematis kita, dudu angka resmi saka makalah. Abstrak ora nyebutake pinten menit sadurunge latihan dosis pra‑latihan dijupuk, mula priksa teks lengkap sadurunge niru protokol iki nganti menit.

Desain Studi Kaya Apa

Sebelas pria aktif sacara fisik (rata‑rata umur 26.09 ± 4.39 taun) ngrampungake limang kondisi ing format crossover acak kontrol plasebo:

  1. Kreatin sakdurunge latihan (CrB)
  2. Kreatin sajrone latihan (CrD)
  3. Kreatin sawisé latihan (CrF)
  4. Plasebo (PL)
  5. Kontrol tanpa suplemen

Saben peserta dadi pembanding kanggo dhèwèké dhéwé, sing maringi kekuatan statistik nalika sampel cilik. Saben kondisi kalebu sesi standar bench press lan back squat.

Apa Sing Ora Ganti

Gampang banget kanggo ngluhurake asil iki, mula iki sing disebutake abstrak ora beda antarane kondisi:

  • Kinerja lompatan counter‑movement jump
  • Kinerja kognitif (tes pembatalan digit)
  • Suasana ati (POMS)
  • Persepsi rasa kesel (RPE)
  • Persepsi pemulihan (PRS)
  • Nyeri otot sing muncul sawise latihan (DOMS)
  • Tandha biokimia liyane

Dadi manfaaté spesifik mung kanggo kerja angkat beban sing dipasrahake. Ora ana tandha lompatan, otak, suasana ati, utawa rasa lara.

Kerutan Tandha Darah

Loro tandha berubah:

  • Creatine kinase (tandha kerusakan otot) luwih dhuwur ing kondisi kreatin sawisé latihan tinimbang kontrol (p = 0.013) lan plasebo (p = 0.041).
  • Creatinine luwih rendah ing kondisi pra‑latihan tinimbang sajrone latihan (p = 0.033), sawisé latihan (p = 0.003), lan kontrol (p = 0.021).

Abstrak ora nerangake apa arti perubahan iki, lan kita ora kudu nggawe cerita dhewe. Iki diukur sawisé siji sesi, dadi anggep minangka rasa penasaran kanggo riset sabanjure, dudu bukti bahaya utawa manfaat.

Ringkesan Praktis

Sapa sing bisa entuk manfaat: Wong sing aktif, latihan resistensi, lan wis nggunakake utawa mikir nggunakake kreatin monohidrat. Yen sampeyan lagi mutusaké kapan ngombé sak scoop saben dina, iki titik data cilik sing ndhukung ngombé sakdurunge latihan. Nggunakake kreatin minangka pre‑workout uga gampang dibangun dadi kebiasaan.

Sapa sing kudu ati‑ati utawa ora nganggo:

  • Sapa wae sing duwe masalah ginjal utawa perhatian renal. Studi iki ngrekam creatinine lan tandha ginjal liyane, nanging uji 11 wong ora cukup kanggo netepaké keamanan kanggo sing nduwèni kondisi medis. Konsultasi dhisik karo dokter.
  • Wanita, wong tuwa, lan remaja. Kabèh peserta yaiku pria enom sing aktif, mula temuan ora otomatis berlaku kanggo kelompok liya.
  • Wong sing ngarep‑arep manfaat lompatan, suasana ati, utawa ngurangi rasa lara. Ora ana sing muncul ing asil iki.

Cathetan Cilik: Cilik, Akut, lan Eksploratori

Para penulis ngandhani kanthi terang manawa temuan iki eksploratori lan kudu dibuktekaké maneh "kanthi sampel sing luwih gedhé lan struktur placebo/kontrol sing kuat." Watesan utama:

  • Mung 11 peserta. Tembung "pilot" ana ing judhul kanggo alesan.
  • Desain dosis tunggal lan akut. Studi iki mung njawab apa kedadeyan ing siji sesi sawise siji dosis. Ora nyoba minggu‑minggu suplemen harian, sing biasané cara panggunaan kreatin.
  • Kinerja jangka pendek wae. Ora ana asil kekuatan, otot, utawa komposisi awak jangka panjang.
  • Struktur plasebo lan kontrol. Penulis dhéwé ngajokaké versi sing luwih kuat ing riset mbesuk.

Ana uga cathetan konseptual. Manfaat kreatin sing wis dikenal asalé saka penambahan cadangan otot liwat asupan rutin sajrone wektu. Dorongan akut pra‑latihan iku klaim sing béda lan luwih ngagetaké, mula butuh replikasi sadurunge dianggep bener.

Kesimpulan

Ing pilot iki, 0,1 g/kg kreatin monohidrat sing dijupuk sakdurunge sesi berat gegandhengan karo total beban sing luwih akèh diangkat ing bench press lan back squat tinimbang plasebo utawa tanpa suplemen. Njupuk kreatin nalika utawa sawisé latihan ora nuduhake kauntungan sing padha. Yen sampeyan wis ngonsumsi kreatin, mindhah dosis menyang sakdurunge latihan resik risiko lan selaras karo temuan awal iki. Nanging iki asil sing ngasilake hipotesis saka 11 pria lan siji dosis, dudu aturan anyar kanggo ngangkat beban.

Source: Maaoui B, et al. "Acute Creatine Ingestion Before Resistance Training Enhances Strength Performance More than Ingestion During or After Training: A Randomized Crossover Pilot Trial." Nutrients. DOI: 10.3390/nu18111789. PubMed: https://pubmed.ncbi.nlm.nih.gov/42280432/

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.

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Dr. Gymbro

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

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