#anaerobic performance

2 articles

A wide, cinematic landscape photograph of a freediver suspended mid-water in a calm, sunlit turquoise sea, shot from slightly below so the surface glimmers above like rippling silver glass. The diver wears a sleek matte black wetsuit and a long, elegant pair of carbon fins. Their body is streamlined, arms relaxed at their sides, head tilted slightly down in a state of serene focus. Shafts of soft golden sunlight pierce the water diagonally and illuminate fine floating particles and a trail of tiny bubbles rising from the diver's fins. A single thin dive line descends vertically into deeper blue at the right of the frame, adding a graphic compositional element.

In the lower left foreground, slightly out of focus, a minimalist still-life element rests on a pale sandy seabed: a small, clean white scoop with a mound of fine white powder, casually echoing creatine without any text or labels. The scoop is softly lit and has a shallow depth of field blur, creating a gentle visual link between supplement and sport.

The color palette is refined and modern: deep teal, aquamarine, soft cerulean, warm cream highlights, and touches of sunlit gold. The water gradients smoothly from bright, luminous turquoise near the top to a rich inky navy at the bottom, giving depth and a sense of quiet intensity. Leave generous negative space on the left third of the image for headline placement, with the diver positioned on the right third following the rule of thirds.

The mood is calm, athletic, and contemplative, like an editorial image from a premium health and science magazine. Style: high-end editorial photography, natural light, subtle film grain, soft contrast, crisp detail on the diver and gentle bokeh in the background. No text, no logos, no futuristic or sci-fi elements, no graphics overlays.

Creatine werkt zelfs als je niet kunt ademhalen: vrijduikproef toont het

BY DR. GYMBRO · 27 okt 2026

Creatine staat bekend om je te helpen zwaarder te tillen en sneller te sprinten, maar kan het ook nuttig zijn wanneer je helemaal niet ademt? Een nieuwe dubbelblinde proef met getrainde vrijduikers liet zien dat een zeven dagen durende laadfase van 20 g per dag het totale werk en de tijd tot uitputting tijdens een ademhalings‑cyclustest verhoogde. Merkwaardig was dat de bloedlactaatwaarde lager lag in de creatine‑groep dan in de placebogroep, ondanks de betere prestaties. Hieronder lees je wat de studie precies deed, voor wie de bevindingen relevant kunnen zijn en waarom de kleine steekproef van twintig duikers je verwachtingen moet temperen.

A wide, softly lit editorial flat-lay on a pale warm-gray stone countertop, shot from slightly above. On the left, a small rustic ceramic bowl in matte cream holds a handful of dried guarana seeds, dark glossy brown with pale cream arils, a few spilling onto the surface. Beside it sits a halved fresh guarana fruit in vivid red-orange, split open to show the white flesh and black seed inside, looking like a tiny eye. On the right, two open clear capsules rest side by side. One is filled with fine white caffeine powder, the other with a fine earthy brown guarana powder, and a little of each dusts the stone in delicate, deliberate lines. Between them, a minimalist matte-black espresso cup with a thin ribbon of steam rises on the right edge of the frame. A brushed-steel stopwatch and a slim dark-green linen notebook with a pencil sit in the upper background, slightly out of focus, to hint at performance testing without clutter. A few green leaves of a guarana vine curve in from the top-left corner, catching soft light.

The lighting is natural window light from the left, with gentle long shadows and a subtle warm highlight on the seeds. The palette is muted and modern: warm creams, terracotta red, deep espresso brown, sage green, and charcoal accents. The background is clean with generous negative space on the upper right for headline text. Shallow depth of field, crisp focus on the seeds and capsules, fine grain, and a calm premium magazine look like a contemporary wellness and sports-science journal. No people, no text, no logos, no futuristic elements.

science research

Guarana vs cafeïne: dezelfde dosis, alleen guarana verhoogde het maximale vermogen

BY DR. GYMBRO · 22 okt 2026

Met dezelfde hoeveelheid cafeïne, maar een andere capsule, leverde alleen guarana een statistisch significante toename in piekvermogen op. In een gerandomiseerde crossover‑studie met 18 actieve mannen verhief guarana het piekvermogen met 4 % ten opzichte van placebo, terwijl anhydrous cafeïne geen significant effect liet zien. De verschillen tussen guarana en cafeïne waren echter niet statistisch significant – ze blijven beschrijvend. Hieronder vind je de resultaten, de beperkingen van de studie en praktische tips voor dosering op basis van cafeïne‑inhoud.