Dr. Gymbro
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#time trial

2 articles
A cyclist in profile, riding a sleek road bike along a quiet coastal road in warm golden-hour light, shot from a low side angle with a shallow depth of field. The rider wears a muted sage-green jersey, black bib shorts, a matte white helmet, and sunglasses. Their face shows calm, focused fatigue, with a faint sheen of sweat on the forearms. One hand is lifted slightly from the handlebars, holding a small, unbranded matte gel packet in soft cream and coral tones, just before opening it. The road curves gently behind them toward a hazy, softly blurred horizon of pale sea and distant hills, with long amber shadows stretching across the asphalt.

In the foreground, slightly out of focus, a few gel sachets and a bike bottle rest on a weathered stone wall at the left edge of the frame, adding editorial depth. Fine dust and sunlight glow in the air. The palette is warm and restrained: butter yellow, soft peach, sage, and slate blue, with gentle film-like grain. The composition leaves open negative space in the upper right, a pale gradient sky, for headline overlay. The overall look is a modern, minimalist sports-science magazine photograph: natural, premium, and clean, with realistic textures, cinematic but understated color grading, and no text, logos, or graphics.
nutrition

炭酸水素ナトリウムジェルを途中で摂取、3時間サイクリング後の12分TTで12 W増加

BY DR. GYMBRO ·

炭酸水素ナトリウムの最適な摂取タイミングはレース前ではなく、レース中かもしれません。11名の訓練されたサイクリストを対象に、炭酸水素ナトリウムと炭水化物を混ぜたジェルを3時間のライド中に摂取させたランダム化クロスオーバー試験が行われました。疲労状態での12分タイムトライアルでは、炭水化物単独に比べて12 Wのパワー増が確認され、胃腸症状の差は見られませんでした。スプリントや2分間の努力では有意な効果はなく、サンプル数が少ない点と製品がMNSTRY提供だった点に留意が必要です。

A cyclist in a fitted matte-black kit, shot from a low three-quarter angle, rides a sunlit country road at early morning, slightly out of focus with soft motion blur on the wheels. In the foreground on the left sits a rustic wooden table with a tall glass of deep magenta beetroot juice. Condensation beads on the glass, and the light catches its vivid jewel-toned color. Beside it lie two whole beetroots with their leafy red-veined greens still attached, and one halved beet shows concentric crimson-and-pink rings. A small linen napkin and a scatter of water droplets add an editorial still-life feel.

The background is a gently rolling landscape with golden-green fields and a thin ribbon of asphalt curving toward the horizon. Pale mist hangs low and warm sunlight comes from the right, creating long soft shadows and a golden rim light on the glass and the cyclist's silhouette. The shallow depth of field keeps the juice and beets crisp while the rider stays a dreamy blurred suggestion of speed.

The palette is rich magenta, burgundy, warm cream, sage green, and soft gold, with muted, slightly desaturated tones in the background so the beetroot color stands out. The composition follows the rule of thirds, with the still-life in the lower left third and open negative space in the upper right for the title. The overall look is a clean, modern lifestyle-magazine photograph with natural film-like grain, calm and athletic, and no text, logos, or futuristic elements.
nutrition

ビートルートジュース0.5 Lでタイムトライアル前に摂取、4 km と 16.1 km の走行タイムが約3 %改善

BY DR. GYMBRO ·

2011 年に実施された小規模ながら影響力の大きいクロスオーバー試験では、ビートルートジュース 0.5 L(約 6.2 mmol の硝酸塩)を摂取しただけで、実際のサイクリングタイムトライアルが速くなるかどうかが検証された。9 名の競技志向男性サイクリストは、レース開始約 2.5 時間前にジュースを飲むと血漿中の硝酸塩還元物である亜硝酸塩が倍増し、平均出力が上がり、4 km と 16.1 km のタイムがそれぞれ 2.8 %・2.7 %改善した。酸素消費量(VO2)に変化は見られなかったため、パフォーマンス向上はエンジンが大きくなったのではなく、サイクリングエコノミーが向上したことを示唆している。以下にプロトコル、結果、そして本研究の限界を紹介する。

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