#power output

1 article

A landscape editorial photograph with a modern, clean magazine feel, shot on a pale warm-gray concrete surface in soft natural window light from the left. In the foreground, two matte white ceramic espresso cups sit side by side. The left cup holds a small amount of dark espresso with golden crema. The right cup is filled twice as high. Beside them, two small stainless steel scoops hold fine coffee-colored powder, one half full and one heaped, suggesting a dose comparison without any text or labels. A pair of worn red leather boxing gloves rests slightly out of focus behind the cups, laces loosely draped, with a white hand wrap rolled neatly beside them. A minimalist digital kitchen scale in matte black sits at the edge of the frame, with a few roasted coffee beans scattered across the surface. In the soft-focus background, a boxing gym corner appears: a hanging heavy bag in muted charcoal, pale wood plank flooring, and a tall window with diffused morning light. The palette is warm cream, espresso brown, brick red, and soft slate gray, with gentle shadows and a shallow depth of field. The composition follows the rule of thirds, with the cups and scoops in the lower left third and open negative space on the right for headline overlay. The look is tactile and refined, like a high-end health and performance journal. It has natural grain, subtle contrast, and a calm, confident mood. There are no people, no text, no logos, and no futuristic elements.

双倍咖啡因对拳击手帮助有限——真相揭秘

BY DR. GYMBRO · 2026年10月27日

你是否以为在预训练粉里加倍咖啡因就能让表现翻番？最新的交叉实验让 15 名竞技拳击手分别摄入 3 mg/kg 与 6 mg/kg 的咖啡因，结果显示更高剂量并未带来持续的额外收益。两种剂量在 60 分钟时均提升了跳高和功率，但 6 mg/kg 仅在少数指标（如弹力俯卧撑功率、膝关节扭矩）上略占优势。文中提供了常见体重对应的毫克换算、推荐的摄入时间以及研究局限，尤其要注意本研究并未直接测试拳击动作本身。