#anaerobic performance

2 articles

A wide, cinematic landscape photograph of a freediver suspended mid-water in a calm, sunlit turquoise sea, shot from slightly below so the surface glimmers above like rippling silver glass. The diver wears a sleek matte black wetsuit and a long, elegant pair of carbon fins. Their body is streamlined, arms relaxed at their sides, head tilted slightly down in a state of serene focus. Shafts of soft golden sunlight pierce the water diagonally and illuminate fine floating particles and a trail of tiny bubbles rising from the diver's fins. A single thin dive line descends vertically into deeper blue at the right of the frame, adding a graphic compositional element.

In the lower left foreground, slightly out of focus, a minimalist still-life element rests on a pale sandy seabed: a small, clean white scoop with a mound of fine white powder, casually echoing creatine without any text or labels. The scoop is softly lit and has a shallow depth of field blur, creating a gentle visual link between supplement and sport.

The color palette is refined and modern: deep teal, aquamarine, soft cerulean, warm cream highlights, and touches of sunlit gold. The water gradients smoothly from bright, luminous turquoise near the top to a rich inky navy at the bottom, giving depth and a sense of quiet intensity. Leave generous negative space on the left third of the image for headline placement, with the diver positioned on the right third following the rule of thirds.

The mood is calm, athletic, and contemplative, like an editorial image from a premium health and science magazine. Style: high-end editorial photography, natural light, subtle film grain, soft contrast, crisp detail on the diver and gentle bokeh in the background. No text, no logos, no futuristic or sci-fi elements, no graphics overlays.

クレアチンは息止めでも効果がある：フリーダイバー試験が示す

BY DR. GYMBRO · 2026年10月27日

クレアチンは重量挙げやスプリントでよく知られていますが、呼吸を止めた状態でも効果はあるのでしょうか？訓練されたフリーダイバーを対象にした二重盲検試験では、1日20 gを7日間摂取するローディングが、息止めサイクリングにおける総仕事量と持続時間を有意に向上させました。興味深いことに、パフォーマンス向上にも関わらず血中乳酸はプラセボ群より低下していました。本稿では研究概要、期待できる対象者、そしてサンプル数がわずか20名であることから慎重に解釈すべき点を解説します。

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.

science research

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。