Simbiosis Training

Science library

Train on evidence, not on myths

The same articles that guide the plans inside the app: what the science says and how to apply it today to your training, your nutrition and your rest.

Training through niggles

How to train with knee pain

Knee pain doesn't mean quitting the gym: adjust load, range and exercises, keep what doesn't hurt and learn when to stop.

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Programming

The foundation: consistency and frequency

For most people, training every major muscle group at least twice a week and sticking to the plan matters more than a complex split.

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Hypertrophy

Weekly volume to build muscle

The number of working sets per muscle drives hypertrophy, but more volume doesn't always mean better results.

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Intensity

RIR, effort and muscular failure

Going to failure isn't mandatory. Training close to failure lets you stimulate the muscle with less fatigue and better technique.

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Progression

Double progression without losing form

First you lock in reps at the same load; then you add weight and drop back to the bottom of the range.

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Progression

Autoregulation without improvising

Autoregulating doesn't mean changing your routine based on your mood. It means adjusting a planned dose using performance, RIR and comparable recovery signals.

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Performance

Rest between sets

Resting long enough helps you hold reps, load and technique, especially on compound lifts.

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Exercises

Machines vs free weights

There's no universally superior tool. The choice should fit your goal, stability, niggles and preference.

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Technique

Range, control and technique

The range should be full and controlled within tolerable mobility. Cutting it short just to move more weight makes progress hard to compare.

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Preparation

Warming up before training

Get your body ready for the first exercise without arriving tired to your working sets.

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Nutrition

Protein and eating

Your diet should support recovery, health and your body goal. Enough protein helps preserve and build muscle mass.

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Recovery

Recovery, soreness and deloads

Soreness doesn't measure training quality. Performance, sleep and no joint pain give you more useful information.

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Safety

Pain and warning signs

Muscular effort is expected; sharp pain, dizziness or a sudden loss of strength mean you should stop the exercise.

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