#performance

2 articles

A wide, editorial-style flat lay photographed from above on a pale warm-gray concrete surface, lit by soft natural window light with gentle shadows. On the left, three small matte ceramic bowls in sage green, soft terracotta, and cream, each holding a different white crystalline powder. The textures vary subtly: fine and powdery, slightly granular, and glittery with tiny crystalline flecks. Beside them rest three minimalist wooden scoops, a few scattered grains catching the light. In the center-right, a worn classic black-and-white soccer ball sits slightly off-frame, partially cropped by the edge, with a pair of muted navy cleats resting nearby, laces loosely draped. A small stopwatch with a brushed-steel finish and a folded sheet of graph paper with a hand-drawn bar chart in soft coral and teal pencil add a subtle sense of data and measurement. A few blades of fresh-cut grass and a sprig of eucalyptus add organic accents. The palette is calm and modern: warm neutrals, sage, terracotta, and muted navy, with one pop of coral. The composition leaves generous negative space in the upper right for headline text. The mood is clean, curious, and trustworthy, like a contemporary health and science journal. Shallow depth of field, crisp focus on the powders, with the soccer elements slightly softer. High-end editorial photography, 16:9 landscape.

クレアチンHClはモノハイドレートを上回るか――サッカー選手はすぐに捨てるべきではない

BY DR. GYMBRO · 2026年10月29日

40名のサッカー選手を対象に実施された新しい無作為比較試験では、クレアチンHClとクレアチンエチルエステルが、たった4週間のトレーニングでジャンプ・スプリント・敏捷性・ピークパワーの各指標においてモノハイドレートを上回ったと報告されています。全てのクレアチン形態はプラセボより有意に効果が高かったものの、サンプル数が少なく投与量や筋肉内クレアチン濃度のデータが欠如している点から、既存のエビデンスと矛盾があります。本稿では、結果の概要と限界、そして実務的にどのように捉えるべきかを解説します。

A wide, editorial-style flat lay photographed from above on a pale warm-gray stone countertop in soft morning window light. On the left, a simple white ceramic bowl holds fine white baking soda powder, with a vintage wooden spoon resting beside it and a light dusting of powder spilling across the surface. In the center, three identical clear glass tumblers sit in a neat row, each filled with a slightly different cloudy liquid: one almost clear, one milky white, one faintly yellow-tinged. Small kraft paper labels tied to the glasses with twine remain blank. To the right, a minimalist silver stopwatch lies on a folded navy athletic towel, its hands frozen mid-count. A few fresh lemon halves and a single sprig of mint add a bright, natural accent near the citrate glass. A pair of worn but clean women's running shoes sits partly in frame at the upper right corner, laces loose, hinting at an athlete without showing a person. Subtle long shadows fall diagonally across the scene, giving depth and a calm, modern feel. The color palette is muted and cohesive: chalky whites, soft sage green, warm sand, deep navy, and small pops of lemon yellow. Shallow depth of field gently blurs the edges, with crisp focus on the center glasses and stopwatch. Plenty of clean negative space across the top third leaves room for a headline overlay. The overall look is a trendy health and performance journal: clean, tactile, slightly grainy film-like texture, natural and understated, with no text, no logos, and no futuristic elements.

nutrition

重曹がナトリウムクエン酸併用に比べて17秒速くタイムを短縮

BY DR. GYMBRO · 2026年10月21日

多くの人は、複数のバッファーを組み合わせれば単体より効果が上がると考えがちです。しかし、10名の高度にトレーニングされた女性CrossFit選手を対象にしたクロスオーバー試験では、炭酸水素ナトリウム（重曹）が6 kmタイムトライアルでプラセボより21.5秒短縮したのに対し、ナトリウムクエン酸やその併用は有意な効果を示しませんでした。重曹はナトリウムクエン酸単独よりも11.6秒、併用よりも17.2秒速かったものの、胃腸の不快感が増加しました。本稿では研究結果の概要、併用が失敗した可能性、そして安全に試すためのポイントを解説します。