Dr. Gymbro
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#vo2max

3 articles
A wide, editorial-style flat lay photographed from above on a pale warm-gray linen surface in soft natural window light. At the center, a small open amber glass jar tips gently onto its side, spilling a few cream-colored capsules across the fabric. Next to the jar sits a loose arrangement of fresh mushrooms: a cluster of golden-tan reishi with glossy, lacquered caps, a few slender white enoki stems, a halved shiitake showing its pale gills, and a curl of turkey tail with concentric bands of rust, cream, and charcoal. A small wooden scoop holds a pile of fine beige mushroom powder.

On the left third of the frame, a matte black sports watch with a minimal face lies beside a folded sage-green running shirt and a pair of lightweight off-white running shoes, hinting at athletic training without showing a person. A slim white notebook with a single pencil rests nearby, open to a blank page with a faint hand-drawn line graph trending upward, in thin graphite strokes.

On the right side, a pair of clear glass beakers and a single small petri dish with a soft amber-tinted liquid add a subtle laboratory note, kept calm and organic. A single sprig of dried herbs and a few scattered oat-colored grains add texture.

The palette is earthy and refined: oatmeal, soft sage, terracotta, warm amber, and charcoal accents against the muted neutral background. Shadows are soft and diffused, with a gentle highlight on the glass and the glossy reishi cap. The composition leaves generous negative space in the upper right for a headline overlay. Shallow depth of field blurs the edges slightly, while the central mushrooms and capsules stay crisp. The overall feel is modern, clean, and trendy, like a wellness and science magazine cover, with tactile natural textures, minimal styling, and a quiet sense of curiosity and skepticism.
science research

Une capsule de champignon a augmenté le VO₂max de 14,8 % — mais il y a un gros piège

BY DR. GYMBRO ·

Une capsule de champignon, 40 jours d’utilisation et une hausse de 14,8 % du VO₂max semblent presque trop beaux pour être vrais. Dans ce nouvel article de *Antioxidants*, 50 jeunes athlètes masculins ayant pris 320 mg/jour d’un extrait multi‑champignon riche en bêta‑glucanes sont passés de 46,26 à 53,12 mL·kg⁻¹·min⁻¹. Le gros piège, c’est qu’il n’y avait ni groupe placebo, ni randomisation, ni double‑aveugle, et que les athlètes ont continué à s’entraîner pendant toute la période. Des expériences cellulaires sur des cardiomyoblastes de rat offrent un indice lié à l’hypoxie, mais elles n’ont testé que des composés isolés, pas la capsule. Voici ce que l’étude montre, ce qu’elle ne peut pas prouver, et ce que les sceptiques devraient remarquer.

A wide, landscape editorial photograph with a modern wellness-journal feel. In the foreground, a clear glass vial of pale amber liquid sits on a matte white stone surface, with a small dropper beside it and a few droplets catching soft light. A slim brushed-steel measuring spoon and a minimalist notebook with handwritten dose calculations in pencil rest nearby. The numbers are blurred and unreadable.

In the softly blurred background, a bright, airy modern gym with large windows and morning light. A fit man in his thirties, in a charcoal athletic shirt, is mid-stride on a treadmill in profile, with a gentle sheen of sweat and a focused expression. Behind him, a wooden plyo box, a kettlebell, and a rope are arranged neatly, suggesting functional training.

The palette is calm and refined: warm cream, soft sage green, muted terracotta, and touches of deep navy. Natural golden side-light makes long, gentle shadows. Shallow depth of field with a crisp foreground and creamy bokeh. Clean composition with negative space on the left third for a title overlay. Premium magazine photography, subtle film grain, realistic textures, no text or logos, and no futuristic or digital elements.
nutrition

HMB améliore l’endurance cardio, mais pas la force, d’après un nouvel essai de 2026

BY DR. GYMBRO ·

Le HMB est habituellement présenté comme un allié pour conserver la masse musculaire et gagner en force, mais un essai triple‑aveugle récent montre autre chose. Chez 90 hommes, une forte dose personnalisée de HMB liquide (90 mg/kg de masse maigre par jour) combinée à un entraînement fonctionnel à haute intensité a davantage augmenté le VO₂max et les marqueurs de seuil que le placebo. L’effet était le plus marqué chez les pratiquants entraînés, tandis que la force isométrique des jambes est restée inchangée. Voici le calcul de la dose, la comparaison avec la dose standard de 3 g, et les personnes qui pourraient réellement en bénéficier.

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 small matte white ceramic bowl holds fine white arginine powder, with a wooden scoop resting beside it. At the center, two halved oranges and one whole lemon in saturated citrus tones, with a few glossy droplets of water on the cut surfaces, to suggest vitamin C. On the right, three slim amber glass capsule bottles with minimal cream labels and no legible text stand in a loose row, with a few white capsules spilling out. A single chrome dumbbell handle enters the frame from the upper right corner, partly cropped, its cool metallic sheen contrasting with the warm fruit. A sprig of green rosemary and a folded linen napkin in oatmeal beige add texture. Long soft shadows fall to the left. The palette is warm cream, sunny orange, soft yellow, and muted sage, with a few crisp accents of steel gray. The composition is airy and uncluttered, with generous negative space in the upper left for a title overlay. It has a shallow depth of field, a crisp foreground, and a faintly blurred background. The look is clean, contemporary, and wellness-magazine, like a premium health and fitness journal cover, with natural grain, high-end product photography quality, and a calm, fresh, trustworthy mood.
science research

3 g d'arginine + 500 mg de vitamine C : une hausse de 26 % de la testostérone chez les bodybuilders

BY DR. GYMBRO ·

L'arginine a longtemps mauvaise réputation comme stimulant d'oxyde nitrique, mais une nouvelle étude randomisée montre qu'associée à de la vitamine C, elle augmente significativement la testostérone et le VO₂max chez 50 bodybuilders masculins après 45 jours de supplémentation (3 g d'arginine répartis en trois prises + 500 mg de vitamine C), tout en réduisant la masse grasse. L'hormone de croissance, le cortisol et l'équilibre azoté restent inchangés. Ce « stack » économique mérite d'être suivi, même s'il repose sur une étude unique et qu'une hausse de testostérone ne garantit pas forcément une prise de muscle.

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