#10k

1 article

A wide, editorial-style flat lay on a warm, matte cream stone surface, shot from slightly above in soft natural morning light. On the left, a ceramic espresso cup in muted terracotta holds dark coffee, with a few roasted coffee beans scattered beside it. In the center, a small wooden board holds three bright red chili peppers, one sliced open to show pale seeds, next to a small pile of coarse red pepper flakes. On the right, a pair of minimalist off-white running shoes with sage green accents rests at an angle, and a slim stopwatch with a clean white face lies in front of them. Three small matte white capsules sit in a neat row at the center of the composition, a quiet nod to the placebo and the active doses. Soft shadows fall to the lower right. A sprig of dried eucalyptus and a folded linen cloth in oatmeal tones add texture at the edges. The palette is warm and restrained: terracotta, chili red, cream, sage, and charcoal brown, with a gentle pop of red as the focal accent. The depth of field is shallow, so the foreground beans are slightly soft and the chilies and capsules stay crisp. The mood is clean, modern, and magazine-like, in the style of a contemporary health and science journal. There is no text, no people, and no logos, and plenty of negative space on the upper left and right edges leaves room for a headline overlay.

カフェイン＋カプサイシンは10kmでプラセボに勝利、カプサイシン単体は効果なし

BY COACH RYAN · 2026年10月17日

チリペッパーに含まれるカプサイシンとカフェインの組み合わせだけが、10kmのクロスオーバー試験でプラセボを上回った。一方、カプサイシン単体では効果は見られなかった。統計的に見える効果はカフェインが主導しており、相乗効果は示されていない。投与量6 mg/kgは体重75 kgのランナーで約450 mgに相当し、かなりの量になる。カフェイン摂取に伴い、不眠・不安・頭痛・心拍数上昇が頻繁に報告された。以下は20名のランナーを対象とした研究結果と、摂取を控えるべき人のまとめです。