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A wide editorial still life on a pale, warm-gray stone surface lit by soft morning window light from the left. In the foreground, a rustic ceramic bowl in matte oatmeal glaze holds dried ashwagandha roots, pale tan and gnarled, with a few scattered beside it. A small wooden scoop dusted with fine golden-beige powder rests next to the bowl. Behind them, a few olive-green ashwagandha sprigs with small orange-red berries in papery husks arc across the frame, adding a quiet pop of color.

Midground right: a matte black chalk-dusted dumbbell handle and a single brushed-steel weight plate lean casually against a linen-textured backdrop in muted sage. A folded cream cotton towel and a slim notebook with a pencil suggest a training log. The notebook is open to blank, softly lined pages with no legible text.

The background fades into a gentle blur of neutral beige and soft terracotta tones, with a hint of a plant shadow cast across the wall in dappled light. Fine dust and powder particles float in the light beams, giving a tactile, organic feel.

The composition follows the rule of thirds: botanical elements on the left and center, gym elements on the right, and negative space in the upper right for headline overlay. Shallow depth of field, crisp focus on the roots and powder, creamy bokeh behind. Color palette: sage green, warm sand, terracotta, charcoal black, and a touch of burnt orange. The mood is calm, modern, and trustworthy, like a premium wellness and science magazine. Photographed on a 50mm lens, natural grain, subtle film-like contrast, clean minimalist styling, high-end editorial photography.

8週間の筋トレ実験でプラセボに勝った古代ハーブ（アシュワガンダ）：筋力・筋肥大・テストステロン

BY DR. GYMBRO · 2026年10月14日

何世紀にもわたりアーユルヴェーダで利用されてきた根が、プラセボ効果を上回る結果を示したのでしょうか？57人の初心者男性を対象にした8週間の無作為化比較試験で、アシュワガンダ抽出物を1日300 mg、1日2回摂取した群は、ベンチプレスの筋力、腕と胸囲のサイズ、テストステロンの上昇がプラセボ群より大きく、体脂肪も減少しました。ただし、対象が初心者男性に限られ、試験期間も短く、サンプルサイズも小さい点は留意が必要です。データの内容、投与方法、対象者、そして懐疑的な姿勢を保つべき理由を解説します。