Dr. Gymbro
A cyclist's legs mid-pedal on a stationary road bike, shot in a bright, airy, minimalist studio with a soft warm-grey backdrop. In the foreground on a pale oak table sits a small ceramic dish holding four deep coral-red softgel capsules, with a few translucent droplets of red-orange oil glistening beside them. Beside the dish is a sprig of dried red microalgae-toned seaweed and a halved wild salmon fillet, its coral flesh echoing the capsule color. Behind the table, slightly out of focus, a cyclist in a fitted charcoal jersey and matte black shorts rides a bike on an indoor trainer. Only the torso and legs are visible, with no face. A white towel hangs over the handlebars and a clear water bottle catches the light.

Soft diffused morning light streams from a large window on the left, creating long gentle shadows and a subtle golden-hour glow on the skin and the glossy capsules. The palette is restrained and editorial: warm cream, sand, soft grey and charcoal, with vivid coral-red as the single accent color. A minimalist analog stopwatch with a clean white face sits on the table, its hands near the 85-minute mark. A thin, elegant line-graph shape is subtly suggested by a curved strip of red ribbon lying on the table, rising from left to right to hint at the performance gain without any text.

The composition follows the rule of thirds, with the capsules and stopwatch in the lower left and the cyclist's motion-blurred legs sweeping across the right. Shallow depth of field, crisp macro detail on the capsules, and a fine film-like grain. The overall feel is a modern health and science magazine cover: clean, calm, sophisticated, and natural, with negative space in the upper area for a headline. There are no futuristic elements, no glowing effects, no laboratory equipment, and no text or logos. Landscape 16:9 format.
Nutrition

4天虾青素让骑行极限时间从72分钟提升至85分钟——小规模试验

Dr. Gymbro · · 1 min read

4天虾青素让骑行极限时间从72分钟提升至85分钟——小规模试验

四天的虾青素补充,使一组年轻男性在固定高强度骑行下的极限时间延长约13分钟。这项研究发表于 2025 年 的 BMC Sports Science, Medicine & Rehabilitation,采用随机、安慰剂对照、交叉设计。

引人注目:72 分钟 vs 85 分钟

试验结果显示,服用虾青素后的极限骑行时间(TTE)为 85.41 ± 4.42 分钟,安慰剂为 72.11 ± 2.24 分钟,相差约13分钟,提升幅度约 18%。在样本量仅 10 人的情况下,差异达到统计显著(P < 0.001,partial η² = 0.71),说明效应量相当大。

受试者以 VO₂max 的 75% 强度骑行至力竭,这是一种持续的高负荷任务,能够放大微小的生理优势,使之在时间上表现为几分钟的差距。

剂量与方案:短、猛、量大

研究团队(首席研究者 Tsao Jung‑Piao 与 Cheng I‑Shiung)招募了 10 位体能活跃的男性,平均年龄 22.5 岁。实验为随机、安慰剂对照、交叉设计,每位受试者在两个试验期之间进行跨期比较。

  • 补充方案:每天口服 28 mg 虾青素(或等量安慰剂),共 4 天;
  • 测试时间:第 4 天进行极限骑行。

在运动前、运动中以及运动结束后立即采集血液和呼吸气体样本,用以监测肌肉损伤、炎症、氧化应激及能量底物利用情况。

提示:市面上多数非处方虾青素软胶囊的单粒含量远低于 28 mg,广告宣传的每日摄入量也通常低于本研究剂量。若想复制本实验方案,务必核对产品标签;多粒服用并不等同于安全,也并非等效于本研究的短期“加载”。本研究未提供长期安全性数据,四天的高剂量加载与常规建议的数周甚至数月使用时间相差甚远,需谨慎对待。

肌肉损伤与氧化应激:生物标志物的变化

肌肉损伤标志物

  • 肌酸激酶(CK) 与 乳酸脱氢酶(LDH):剧烈运动后常因肌细胞膜通透性增加而升高。虾青素显著抑制了两者的升高(P < 0.05),CK 的时间×处理交互效应显著(P = 0.039,η²p = 0.217),提示虾青素可能减轻了运动诱发的肌肉损伤。

脂质过氧化标志物

  • 丙二醛(MDA):反映细胞膜脂质过氧化程度。实验中 MDA 的升高在虾青素组被显著抑制(P < 0.05),与其强抗氧化能力相符。

炎症指标

  • 肿瘤坏死因子‑α(TNF‑α)和 C‑反应蛋白(CRP)在补剂或运动后均未出现显著变化,说明虾青素的作用局限于抗氧化与肌肉细胞损伤,而非广谱抗炎。

能量底物利用

  • 运动期间及运动后两组的燃料利用模式(脂肪 vs 碳水化合物)基本相同,骑行时间延长并未通过改变能量供给比例来解释,具体机制仍待阐明。

情绪与主观感受

  • 虾青素对受试者的情绪状态没有负面影响。

为何这可能对耐力运动员重要

作者将虾青素视作潜在的营养增效剂。长时间高强度运动会产生大量活性氧(ROS),这些 ROS 可损伤肌膜并加速疲劳。虾青素是一种脂溶性酮类胡萝卜素,能够嵌入细胞膜,理论上可提供膜层保护。

实验中 MDA、CK、LDH 的下降与这一假设相吻合,但炎症标志物不变、能量利用未改变,使得“从抗氧化到额外 13 分钟”这条因果链仍不完整。值得注意的是,适度的 ROS 信号对训练适应是必要的,抗氧化剂在训练中的作用常被形容为“双刃剑”。本试验仅测量单次极限骑行的急性效应,无法说明长期训练适应的影响。

实用要点

  • 信号有前景,但尚未定论。 短期高剂量方案下出现的大幅 TTE 改善以及相应生物标志物的变化值得关注。
  • 剂量需留意。 实验使用 28 mg/天,远高于多数市售软胶囊。购买前请核对产品标签,确保剂量匹配。
  • 窗口短暂。 四天的“加载”方案在赛前准备上具有吸引力,但长期使用的安全性和效应尚不明确。
  • 适用范围有限。 结果仅针对高强度自行车耐力,不能直接推广至力量训练、肌肉肥大或体成分等其他项目。

局限性不可忽视

  1. 样本量极小:仅 10 位受试者,效应值可能被高估,且极窄的标准差需要在更大样本中复现后方可确认。
  2. 受试者单一:均为年轻、体能活跃的男性,结果不一定适用于女性、老年人或专业耐力运动员。
  3. 单一运动模型:仅在 VO₂max 75% 强度下进行一次极限骑行,难以外推至真实比赛或其他运动模式。
  4. 极限时间受主观因素影响:动机、配速等因素可能介入,TTE 不完全等同于实际竞技表现。
  5. 缺乏长期数据:仅四天补充,未评估长期使用的安全性和训练适应效果。

结论

该小规模随机对照试验为虾青素作为短期耐力助剂提供了初步证据:约 18% 的极限时间延长以及肌肉损伤和脂质过氧化标志物的下降。鉴于样本量、剂量及受试者特征的局限性,建议将其视为后续大样本、长周期研究的推动因素,而非已证实的性能提升手段。

Original study

Read the original research on pubmed.ncbi.nlm.nih.gov →

This article summarizes published research for general information. It is not medical advice.

DG

Written by

Dr. Gymbro

Dr. Gymbro writes for Dr. Gymbro: science-backed fitness, nutrition & performance.

Related Articles

A wide editorial still life shot from a slightly elevated angle on a pale ash-wood bench in a bright, airy training hall. In the center sits a small matte ceramic dish holding a few translucent coral-red softgel capsules, their glossy surfaces catching soft window light. Beside the dish rests a folded white taekwondo dobok with a black belt loosely coiled on top. A sprig of fresh red microalgae-toned seaweed and a halved blood orange add natural color accents. A clean glass of water with subtle condensation stands to one side.

In the softly blurred background, the silhouette of a martial artist in a white uniform stretches near tall windows, with diffused morning light streaming across a sprung wooden floor. A pair of red and blue sparring gloves hangs on a minimal wall hook. Thin, elegant shadows stretch across the bench.

The palette is restrained and modern: warm off-white, soft sand, muted charcoal, with a vivid coral-red accent pulled from the capsules. Shallow depth of field, crisp focus on the capsules and dish, creamy bokeh behind. Natural, gentle lighting with a subtle film-like grain, reminiscent of a contemporary wellness and science magazine cover. Generous negative space on the left third of the frame for headline text. Calm, precise, and quietly athletic in mood, with no text, logos, or futuristic elements.
science research

每日12 毫克虾青素,连续28天:格斗运动员的肌肉损伤与倦怠

BY DR. GYMBRO ·

一项随机、双盲、安慰剂对照试验让年轻男性跆拳道运动员每日摄入12 毫克虾青素,持续28天。结果显示,补充组的血清肌酸激酶(CK)轨迹显著不同于安慰剂组,抗氧化酶超氧化物歧化酶(SOD)水平更高,且在探索性分析中呈现出更低的丙二醛(MDA)以及情绪与身体疲劳感的下降。但倦怠相关的发现仅为探索性结果,未出现显著的组×时间交互。本研究样本量较小,主要评估生物标志物而非运动表现。以下将说明这些数据能说明什么、不能说明什么,以及哪些人可能需要关注。

Wide landscape editorial photograph of a mountain biker mid-ride on a dusty red-orange singletrack trail in the South African Western Cape, golden hour light raking across the scene. The rider is in sharp focus on the right third of the frame, wearing a weathered cycling kit with a race number plate on the handlebars, dust kicking up from the rear tire. Behind them, rolling hills covered in fynbos shrubland and silhouetted protea plants fade into soft, hazy blue mountains. Warm amber sunlight creates long shadows and a soft rim light around the rider and bike.

In the lower left foreground, slightly out of focus, a small minimalist glass vial and a clear water bottle sit on a flat sun-bleached rock, with a few drops of liquid catching the light. Next to them, a simple matte paper notecard and a pencil suggest data collection, with no legible text. The vial and bottle are clean, understated, and modern, with no branding.

The color palette is earthy and refined: terracotta, ochre, sage green, dusty teal sky, and cream highlights. The composition uses shallow depth of field, a generous negative space in the upper left sky for headline overlay, and subtle film grain. The mood is contemplative, skeptical, and quietly sophisticated, like a feature photograph from a high-end outdoor sports and science magazine. Natural, candid, cinematic, shot on a 50mm lens with soft contrast and muted saturation. No futuristic elements, no glowing effects, no molecular graphics, no text.
science research

Ketone IQ 在 Cape Epic 提升血酮水平,却未带来任何恢复效益

BY DR. GYMBRO ·

在为期八天的 Cape Epic 中,骑手每天饮用两次 Ketone IQ,使血酮浓度约达 1 mM,但他们的疲劳感、心率、反应时间和恢复情况与安慰剂组毫无差别。该双盲试验在真实比赛环境下评估了 R‑1,3‑丁二醇,而非实验室条件。作者指出,轻微的酮症并未带来实际效益,并提醒不要把丁二醇与酮酯混为一谈。由于仅有 18 名骑手参与,研究规模有限,但对考虑高价酮饮料用于恢复的任何人都是一次警示。

A cyclist in mid-ride, photographed from a low three-quarter side angle on a quiet country road at golden hour, wearing a matte navy jersey and a white helmet, with soft warm light catching the sweat on his forearms. His expression is calm and focused. The road bends gently through rolling green fields, and the background is softly blurred with creamy bokeh.

In the foreground on the left, a styled flat-lay-inspired still life sits on a weathered wooden surface and blends into the scene. It includes two clear water bottles with pale citrus-tinted liquid, a few torn energy gel packets in muted coral and sage, and a small pile of dried apricots and sliced banana. A handful of glossy orange slices adds a bright accent. The shallow depth of field keeps the cyclist sharp in the middle distance while the foreground items are gently softened.

The color palette is warm and editorial: soft peach, muted terracotta, sage green, cream, and deep navy. The light is natural and golden, with long, gentle shadows and a slight film-grain texture, like a high-end lifestyle or sports-science magazine spread. The composition follows the rule of thirds, with the cyclist on the right third and open negative space in the upper left, suitable for headline overlay.

The mood is energetic yet thoughtful, clean and modern, and the photograph feels authentic rather than staged. There are no logos, no readable text, and no futuristic or sci-fi elements. The overall look is crisp, airy, and refined, in the style of a contemporary health and performance journal cover.
nutrition

每小时100克碳水让骑手更快——糖原并非关键因素

BY COACH RYAN ·

在一次持续四小时的高强度骑行实验中,每小时摄入100克碳水的骑手比摄入60克的骑手功率下降更少。令人惊讶的是,两组骑手的肌肉糖原储备几乎相同。该随机、双盲、交叉设计的研究提示,提升耐久性能的因素可能超出单纯的糖原保存。本文将解析实验数据、1:0.8 葡萄糖‑果糖配比以及实际应用要点,并说明哪些人群暂不适合采用此方案。

A bright, airy editorial photograph shot from above at a slight angle, showing a tall clear glass of deep violet blueberry smoothie on a pale oak wooden table. The smoothie has a creamy, velvety texture with a few lighter swirls, and a small cluster of fresh blueberries with dusty blue skins rests on the rim of the glass. A matte white ceramic bowl of whole blueberries sits to the left, with a few berries scattered naturally across the tabletop. A folded linen napkin in soft oatmeal tones and a stainless steel straw add subtle texture.

In the softly blurred background, a rolled-up sage green yoga mat leans against a light wall next to a pair of clean white running shoes and a small pair of brushed-metal dumbbells. A sliver of warm morning sunlight enters from the left window, casting gentle diagonal shadows and a golden glow across the table, with soft highlights on the glass and the berries' surface bloom.

The color palette is fresh and modern: deep indigo and violet from the smoothie, balanced by cream, warm beige, soft sage green, and touches of white. The composition follows the rule of thirds, with the glass placed on the right third and generous negative space on the left, suitable for headline overlay. Shallow depth of field, crisp focus on the glass and berries, creamy bokeh in the background. The mood is calm, healthy, and aspirational, like a contemporary wellness magazine or a trendy health journal website. Natural, realistic, high-end food and lifestyle photography style, 16:9 landscape format, clean and uncluttered.
nutrition

蓝莓奶昔助力酸痛腿部更快恢复力量

BY DR. GYMBRO ·

十名女性完成了300次高强度离心股四头肌收缩,并饮用一杯蓝莓奶昔。随机交叉试验显示,这种浆果饮料在60小时内加速了峰值等长力量的恢复(p=0.047),而抗氧化能力相同的安慰剂未出现该效应。说明收益并非单纯来源于抗氧化剂。由于仅有一个指标达到显著且样本量极小,证据更具启发性而非决定性。以下将介绍研究设计、主要发现以及在最艰苦的腿部训练日的实际应用。

This page is available in