Dr. Gymbro
Fitness General Nutrition Recovery Science & Research Trending: supplements sports nutrition creatine pre workout recovery
A bright, minimalist flat-lay photograph of two supplement scoops on a pale warm-gray stone surface, shot from directly above in soft natural window light. On the left, a matte ceramic scoop holds fine white creatine monohydrate powder, heaped in a clean mound. On the right, a second scoop of the same shape holds slightly coarser off-white beta-alanine powder, with a small, deliberate gap between the two. Each scoop sits in its own soft shadow, which suggests separation rather than combination. Between them, a thin brushed-brass ruler or a single slim line of fine powder runs across the surface and subtly divides the composition. Around the scoops, a few restrained props in a muted editorial palette of sage green, cream, terracotta, and soft charcoal: a small glass jar with a minimalist label that has no readable text, a folded linen napkin, a single sprig of eucalyptus, and a stainless-steel shaker bottle softly out of focus in the upper corner. A few loose powder grains are scattered naturally across the stone. A small stack of blank cream index cards with a pencil rests in the lower right, hinting at research and note-taking without any legible writing. The composition follows a clean rule-of-thirds layout, with generous negative space on the right third for headline overlay. The lighting is gentle and diffused, with long, soft shadows falling to the lower left. The color grading is calm and slightly desaturated, with creamy highlights and a subtle film-like grain. The overall look is a modern wellness and science journal cover, with an airy, trustworthy, contemporary editorial feel, shallow depth of field, and crisp detail on the powders.
Nutrition

Creatine + Beta‑Alanine: Stack Bonus sing Durung Ditemokake Peneliti

Dr. Gymbro · · 4 min read
#supplements #meta analysis #beta alanine #ergogenic aids #creatine #sprint performance #sports performance

Creatine + Beta‑Alanine: Stack Bonus sing Durung Ditemokake Peneliti

Sampeyan mesthi wis ndelok botol‑botol, label pre‑workout lan paket "ultimate performance stack". Creatine lan beta‑alanine dipasaraké bebarengan kaya loro sing nduwèni efek sinergi. Review sistematis lan meta‑analisis jaringan paling anyar ing Journal of the International Society of Sports Nutrition nyoba ngetes gagasan iki, lan nemokaké yèn creatine pancen dadi pahlawan utama, nanging kombinasi ora nambah apa‑apa sing terukur.

Apa sing ditindakake peneliti?

Bai lan Xu saka Jiangxi University of Science and Technology, China, ngetutake pandhuan PRISMA. Panaliténé nglacak PubMed, Scopus lan Web of Science nganti Agustus 2025. Kriteria sing dipigunakaké yaiku percobaan terkontrol acak (RCT) sing nganggo creatine, beta‑alanine, utawa loro‑loro bebarengan, minimal rong minggu, lan melibataké atlit dewasa sing sehat.

Ana 52 RCT sing kabèh entuk skor ≥6 ing skala kualitas PEDro, dadi layak kanggo dianalisis. Meta‑analisis jaringan ngidini peneliti mbandhingaké macem‑macem intervensi sekaligus, kalebu sing durung tau diuji bebarengan. Intervensi sing dipertimbangaké yaiku creatine dewe, beta‑alanine dewe, kombinasi loro‑loro, lan placebo. Asil sing diukur kalebu sprint, lompat, kelincahan, daya tahan otot awak ndhuwur lan ngisor, lan kemampuan sprint berulang (RSA).

Judhul utama: Creatine mujudake, stack ora

Dibandhingaké karo placebo, creatine dewe wae sacara signifikan ningkataké:

  • Performane sprint: SMD = ‑0,64 (p = 0,04). Nilai negatif nuduhaké wektu sprint sing luwih cepet.
  • Performane lompat: SMD = 0,33 (p = 0,002).
  • Kemampuan sprint berulang: SMD = ‑0,78 (p = 0,01).
  • Daya tahan otot awak ndhuwur: SMD = 0,43 (p = 0,01).

Skor P creatine ing meta‑analisis jaringan kabeh ≥0,90 ing domain iki, tegese posisi paling dhuwur utawa cedhak paling dhuwur.

Beta‑alanine nuduhaké "efek non‑signifikan utawa gumantung konteks". Kombinasi loro‑loro ora nuduhaké manfaat sinergis. Penulis nyimpulaké yèn suplementasi bebarengan ora menehi keuntungan tambahan tinimbang creatine dewe.

Napa logika "loro jalur" ora kelakon

Secara teoritis, stack iki masuk akal. Creatine nambah sintesis fosfokreatin lan pergantian ATP sing cepet. Beta‑alanine nambah kadar carnosine otot sing mbantu ngimbangi akumulasi asam laktat. Mekanisme béda iki kuduné nambah manfaat bebarengan.

Nanging data gabungan ora ndhukung iki. Penulis nerangaké yèn keuntungan buffering beta‑alanine katon spesifik marang tugas tartamtu lan ora cukup kanggo nggedhekaké efek creatine. Ing panemuane, konsistensi creatine asalé saka pamulihan fosfokreatin sing luwih apik lan output neuromuskular sing penting kanggo sprint, lompat lan usaha berulang.

Apa sing ora obah

Creatine ora ningkataké kelincahan utawa daya tahan otot awak ngisor sacara signifikan (keduane p > 0,05). Creatine dudu obat mujarab kanggo kabeh, lan data ora ndhukung pangarepan kenaikan ing saben tes kinerja.

Sepira kuat buktine?

Kawruh iki nduwèni kaluwihan. Mung nyakup RCT sing nduwèni skor PEDro ≥6, lan ora ana bukti inkonsistensi global utawa bias publikasi sing signifikan.

Nanging uga ana watesan sing kudu digatekaké:

  • Heterogenitas sing beda‑bèda. I² wiwit saka 0 % nganti 73 %, tegese sawetara asil asalé saka percobaan sing rada ora konsisten.
  • Populasi: Review iki mung nglibatké atlit dewasa sing sehat. Temuané mbok menawa ora bisa ditrapaké marang wong tuwa, populasi klinis, utawa pamula sing ora dilatih.
  • Beda jender lan cabang olahraga: Penulis ngajak riset luwih akèh babagan respon adhedhasar jinis kelamin lan cabang olahraga, supaya efek rata‑rata ora nyumerepi variasi sub‑kelompok.
  • Durasi lan desain: Diperlukan RCT multi‑lengan sing standar lan jangka panjang kanggo nerangaké interaksi potensial. Bukti saiki dudu tembung pungkasan babagan sinergi.
  • Beta‑alanine ora "gak guna". Temuané mung nuduhaké yèn ing analisis iki efeké non‑signifikan utawa kontekstual lan ora nambah creatine.
  • Abstrak sing ringkes: Abstrak ora nyedhiyakake total jumlah peserta utawa jumlah arm per percobaan, mula priksa paper lengkap sadurungé narik kesimpulan sing luwih rinci.

Pelajaran praktis

Dosis lan timing: Abstrak ora nyebutaké protokol dosis utawa timing, mula review iki ora bisa maringi saran pira utawa kapan kudu njupuk. Saka literatur umum, creatine monohydrate umum dikonsumsi 3‑5 gram saben dina kanthi rutin. Analisis mbutuhaké paling ora rong minggu suplementasi, mula wenehi wektu sadurunge nemtokaké asil.

Kanggo sapa: Adhedhasar asil iki, creatine cocog kanggo atlit sing performané gumantung marang sprint, lompat, usaha intensitas dhuwur sing berulang, utawa daya tahan otot awak ndhuwur. Contoné pemain tim olahraga, sprinter lan lifter.

Sapa sing bisa ngliwati stack: Yen tujuan utama sampeyan mung ngupaya "bonus" saka stacking, analisis iki ora maringi alesan kuat kanggo mbayar combo. Yen sampeyan wis njupuk beta‑alanine lan rasa cocok, ora ana bukti sing nuduhaké iku mbebayani; mung ora ningkataké creatine.

Sapa sing kudu ati‑ati: Review iki mung nutupi atlit dewasa sing sehat. Sapa wae sing nduwèni kondisi medis, utamané masalah ginjal, utawa sing lagi ngandhut utawa ngonsumsi obat kudu rembugan dhisik karo tenaga kesehatan sadurunge miwiti suplemen apa wae. Iki saran umum, dudu asil saka paper iki.

Ringkesan

Yen sampeyan lagi mikir ngatur anggaran suplemen, meta‑analisis jaringan saka 52 RCT iki ndhukung creatine minangka performer konsisten kanggo kerja intensitas tinggi lan anaerobik. Beta‑alanine bisa migunani ing konteks khusus, nanging ora ngowahi creatine dadi versi sing luwih apik. RCT multi‑lengan sing luwih dawa lan dirancang luwih apik bisa ngrampungaké gambaran iki, nanging kanggo saiki stack iki durung entuk nilai premium sing dijanjèkaké.

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.

Share XFacebookLinkedInRedditWhatsApp
DG

Written by

Dr. Gymbro

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

Related Articles

A wide, minimalist editorial scene of an athlete's hands and forearms gripping the handles of a rowing ergometer, shot in soft natural light from a large window in a clean, airy training studio. The athlete is mid-pull, forearm muscles subtly defined, a light sheen of sweat on the skin, chalk dust floating in the air. In the foreground on a pale oak bench sits a small ceramic scoop of fine white powder beside a matte glass of water, with a few loose white capsules arranged neatly in a gentle curve. A minimalist analog stopwatch with a clean white face lies next to them, its hand paused near the two-minute mark. The color palette is calm and modern: warm off-white, soft sand, muted sage green, and a single accent of coral orange in the stopwatch hand and the rower's wristband. The background is softly blurred concrete and pale wood with long, gentle shadows stretching across the floor. Shallow depth of field keeps the hands, powder, and stopwatch crisp while the rest dissolves into creamy bokeh. Composition follows the rule of thirds: the rowing handles and hands occupy the right third, the bench still life sits in the lower left, and open negative space in the upper left leaves room for a title overlay. The mood is focused, quiet, and intentional, like a high-end health and science journal feature. Fine film grain, subtle matte finish, editorial photography style, natural color grading, and no text or logos.
nutrition

Apa Beta‑Alanin Bisa Kerja? Meta‑Analisis Nggambarake Manfaat kanggo Upaya 60–240 Detik

BY DR. GYMBRO ·

Beta‑alanin wis suwe dipromosikaké minangka cara nglawan rasa kebusukan nalika latihan keras, nanging apa bener pancen migunani? Meta‑analisis saka 15 studi lan 360 peserta nemokaké kenaikan median 2,85 % sing nyata nanging modest. Manfaat paling cetha katon kanggo upaya sing suwene 60–240 detik, luwih cilik yen luwih saka patang menit, lan ora ana kanggo sprint kurang siji menit. Artikel iki uga ngrembug dosis umum 3,2–6,4 g saben dina sajrone patang minggu utawa luwih, cara mecah dosis supaya rasa kesemutan ora ngganggu, lan sapa sing paling mupangat.
A wide, editorial-style still life photographed from slightly above on a pale oat-colored linen surface, lit by soft morning window light from the left. In the center sits a small matte ceramic bowl holding a mound of fine white powder, with a minimalist wooden scoop resting beside it. Next to the bowl is an open amber glass supplement jar with a plain cream label, and a few white capsules spill across the linen in a loose arc. To the right, a neatly arranged cluster of analog "study" objects suggests careful measurement: a vintage stopwatch with a clean white face, a slim notebook with a sage-green cover open to a hand-drawn bar chart (blurred, no legible text), and a mechanical pencil lying across the page. A small row of six identical ceramic dishes, each holding a pinch of powder, is lined up along the top edge of the frame to hint at the six-week trial. One dish is slightly out of alignment, a subtle visual cue for ambiguity. A shallow glass of water and a single sprig of green eucalyptus add a calm, organic note in the foreground. Soft, long shadows fall across the textured linen, and the palette stays restrained: warm cream, soft sage, muted terracotta, pale gray, and touches of amber from the glass jar. A few translucent paper cutouts in two tones (sage and blush) overlap in the upper right corner as a modern graphic accent, evoking overlapping data points without showing any numbers. Depth of field is shallow, with the bowl and stopwatch in crisp focus and the edges gently softened. The composition leaves generous negative space on the left third for title text overlay. The overall mood is thoughtful, balanced, and quietly skeptical, in the style of a contemporary wellness and science magazine: clean, tactile, minimal, with a subtle film-like grain and natural color grading. No people, no futuristic or sci-fi elements, no readable text or logos.
nutrition

GAA Penambah Otak? Hasil Uji 6‑Minggu sing Rumit

BY DR. GYMBRO ·

GAA, prekursor kreatin sing dipasaraké dadi penambah otak, nampa uji klinis manungsa pisanan sing serius. Ing uji double‑blind suwene enem minggu karo 58 wong diwasa sing sehat, GAA nuduhaké sawetara perbaikan ing wektu reaksi lan sinyal positif marang mood lan stres. Nanging mayoritas tes kognitif ora nuduhaké owah‑owahan, lan akèh asil mung trend. Keamanan katon apik, nanging studi iki cilik, eksploratif, lan ora nduwèni grup kontrol kreatin waé. Artikel iki nerangaké apa sing bener‑bener dituduhaké, sapa sing mungkin cocok, lan kenapa kesimpulane campuran.
A sleek aluminum energy drink can and a matte scoop of white pre-workout powder sit side by side on a pale concrete gym bench, lit by soft morning window light. The can is slim and minimalist, with a muted sage green label and no legible text. Beside it is a clear glass shaker half full of cloudy, lightly frothy liquid with condensation beading on its surface. A few fine grains of powder are scattered across the bench, catching the light. Behind them, slightly out of focus, a stainless steel barbell rests on a rack, and a folded charcoal gym towel sits at the edge of the frame. The color palette is warm neutral: oatmeal, soft gray, and sage, with a single accent of pale citrus yellow from a halved lemon wedge placed near the glass. A thin, elegant shadow from the window blinds falls diagonally across the scene, giving it an editorial, magazine-style rhythm. The composition leaves generous negative space on the right third of the frame, a smooth blurred wall in warm off-white, suitable for headline text overlay. The shot is a low-angle, shallow depth-of-field product-style photograph, as if taken with an 85mm lens at f/2. The foreground objects are tack sharp and the background melts into creamy blur. The mood is calm, clean, and modern, like a wellness or science journal feature. Subtle film grain and gentle contrast add a tactile, contemporary lifestyle feel. There are no people, no logos, and no futuristic or sci-fi elements, just a quiet, considered still life that suggests the choice between a canned drink and a scooped supplement.
nutrition

Minuman Energi Bisa Dadi Kayan Pre‑Workout — Nanging Ana Watesan Siji

BY DR. GYMBRO ·

Kafein lan tauriné asring ditemokaké bebarengan ing minuman energi lan pre‑workout, nanging apa pasangan iki tenan nambahaké kinerja? Sèté meta‑analisis anyar saka 11 uji acak (234 partisipan) nemokaké peningkatan moderat ing tenaga puncak lan wektu nganti capek, plus rasa usaha sing luwih sithik. Denyut jantung ora owah, lan asil wektu reaksi ora konsisten cukup kanggo diprecaya. Nanging, studi‑studi iki cilik lan ora bisa mbuktèkaké apa tauriné nambah apa‑apa saliyane kafein. Iki sing data ngomongké, lan sapa sing kudu mikir kaping pindho.
A wide, editorial-style still life shot from a slightly elevated angle on a pale oatmeal-colored linen surface in soft, diffused morning light. At the center, a shallow matte ceramic bowl in warm terracotta holds a small mound of fine, golden-tan ashwagandha root powder. Beside it lie a few gnarled, dried ashwagandha roots and a sprig of green leaves with tiny orange-red berries in their papery husks. To the left, a minimalist amber glass supplement bottle sits with a few capsules spilled beside it, label blank and clean. A wooden scoop rests on the surface, dusted with powder. On the right side of the frame, a pair of sleek, muted sage-green running shoes sits slightly off-center. A folded cream towel and a stainless steel water bottle sit just behind them, with a single brushed-steel kettlebell partly out of focus in the background to hint at strength training without dominating the scene. The running shoes and the botanical elements share equal visual weight, suggesting the endurance theme. A thin, curved line of scattered powder sweeps across the linen from the bowl toward the shoes, like a gentle path or track. Soft shadows fall to the left, and a warm sunbeam crosses the surface and picks out the texture of the powder and the roots. The palette is restrained and modern: warm terracotta, sage green, cream, soft gold, and touches of charcoal. The background is a blurred pale plaster wall with a hint of a window shadow. Shallow depth of field, crisp focus on the bowl and roots, and generous negative space in the upper left for a headline. Contemporary wellness magazine aesthetic, calm, natural, tactile, high-end lifestyle photography, no text, no people, no futuristic elements.
science research

Kejutan Ashwagandha: Ngluwihake Ketahanan Tinimbang Kekuatan

BY DR. GYMBRO ·

Ashwagandha asring dipromosikaké minangka suplemen kanggo nambah kekuatan lan otot, nanging meta‑analisis anyar nuduhaké manfaat paling konsisten kanggo ketahanan aerobik. Saka 13 uji randomisasi sing nglibataké 599 peserta, peneliti nemokaké efek gabungan g = 0,54 kanggo ketahanan, déné kenaikan kekuatan ora mesthi lan data babagan daya isih winates. Dosis optimal sing disaranake yaiku 500‑600 mg saben dina ekstrak, ananging interval prediksine nyabrang nol. Artikel iki ngrembag bukti sing ana, sapa sing bisa entuk manfaat, lan sapa sing kudu ati‑ati.

This page is available in

English العربيةবাংলাČeštinaDeutschEspañolفارسیFrançaisHausaहिन्दीHrvatskiBahasa IndonesiaItaliano日本語Basa Jawa한국어NederlandsਪੰਜਾਬੀPolskiPortuguêsRomânăРусскийSrpskiTürkçeУкраїнськаTiếng Việt中文