#peak power

2 articles

A wide, softly lit editorial flat-lay on a pale warm-gray stone countertop, shot from slightly above. On the left, a small rustic ceramic bowl in matte cream holds a handful of dried guarana seeds, dark glossy brown with pale cream arils, a few spilling onto the surface. Beside it sits a halved fresh guarana fruit in vivid red-orange, split open to show the white flesh and black seed inside, looking like a tiny eye. On the right, two open clear capsules rest side by side. One is filled with fine white caffeine powder, the other with a fine earthy brown guarana powder, and a little of each dusts the stone in delicate, deliberate lines. Between them, a minimalist matte-black espresso cup with a thin ribbon of steam rises on the right edge of the frame. A brushed-steel stopwatch and a slim dark-green linen notebook with a pencil sit in the upper background, slightly out of focus, to hint at performance testing without clutter. A few green leaves of a guarana vine curve in from the top-left corner, catching soft light.

The lighting is natural window light from the left, with gentle long shadows and a subtle warm highlight on the seeds. The palette is muted and modern: warm creams, terracotta red, deep espresso brown, sage green, and charcoal accents. The background is clean with generous negative space on the upper right for headline text. Shallow depth of field, crisp focus on the seeds and capsules, fine grain, and a calm premium magazine look like a contemporary wellness and sports-science journal. No people, no text, no logos, no futuristic elements.

グアラナ vs カフェイン：同等用量でピークパワーを上げたのはグアラナだけ

BY DR. GYMBRO · 2026年10月22日

同等のカフェイン量（約5 mg/kg）で摂取した場合、グアラナカプセルだけが統計的に有意なピークパワー向上を示しました。18名の活動的な若年男性を対象にしたランダム化クロスオーバー試験では、グアラナはプラセボに対しピーク出力を約4 %上昇させたのに対し、無水カフェインは有意差を示しませんでした。ただし、グアラナとカフェインの直接比較では有意差は認められず、差は記述的に留まります。本稿では数値の詳細、研究の限界、そしてカフェイン含有量でのグアラナ摂取方法について解説します。

A wide, editorial-style photograph of a professional track cyclist mid-stride on a velodrome's sloping wooden boards, captured from a low side angle with a shallow depth of field. The cyclist is in a sleek matte charcoal and soft coral skinsuit with an aerodynamic helmet, slightly motion-blurred, while the wood grain of the track glows in warm honey tones. Soft morning light streams through high arena windows, creating long, gentle beams and a subtle haze.

In the foreground, slightly out of focus, a minimalist still-life is arranged on a pale oak surface: a small amber glass supplement bottle with a clean cream label, two golden-orange softgel capsules resting beside it, and a ceramic cup of water. A small sprig of green leaves and a halved avocado add a fresh, natural touch, hinting at taking the supplement with fat. The composition places the still-life in the lower left third, with the cyclist blurring into the background on the right, creating a layered sense of depth.

The color palette is warm and refined: creamy off-white, honey wood, muted coral, soft amber, and touches of sage green. A thin, elegant overlay of subtle graph-like lines, such as two delicate rising curves in white, one slightly higher than the other, floats faintly over the upper right negative space, suggesting the small performance gap without any text or numbers. The overall look is clean, modern, and magazine-quality, like a wellness and sports science journal feature, with natural film-like grain, soft contrast, and generous negative space at the top for headline placement. Landscape 16:9 composition, calm and sophisticated mood, no text, no logos.

nutrition

オリンピック候補選手が300 mgのユビキノールを摂取：2.5％のパワー差

BY DR. GYMBRO · 2026年10月20日

ロンドン2012オリンピック出場を目指す100名の若手選手を対象にした二重盲検試験では、全員のパワーが向上しましたが、1日300 mgのユビキノールを摂取したグループはプラセボよりも大きく伸び、+11％対+8.5％という約2.5％の差が統計的に有意でした。ただし、トレーニング管理の不備や研究資金提供元との関係など留意すべき点があります。本稿ではユビキノールとユビキノンの違いや、エリートサイクリストにとっての実用性、摂取タイミングや費用対効果などを解説します。

#peak power

グアラナ vs カフェイン：同等用量でピークパワーを上げたのはグアラナだけ

オリンピック候補選手が300 mgのユビキノールを摂取：2.5％のパワー差

オリンピック候補選手が300 mgのユビキノールを摂取：2.5％のパワー差