WhatMuscle
What a muscle is, what it does, and what trains it — for 69 muscles and120 exercises. Every page carries origin, insertion, actions and innervation alongside a plain-language description, and every exercise is written from scratch rather than copied.
Browse by muscle
- Pecs
- Pec Minor
- Serratus
- Lats
- Spinal Erectors
- Teres Major
- Levator Scapulae
- Traps
- Rhomboids
- Rotator Cuff
- Shoulders
- Biceps
- Triceps
- Brachialis
- Brachioradialis
- Forearm Flexors
- Forearm Extensors
- Abs
- Obliques
- Transversus Abdominis
- Quadratus Lumborum
- Glutes
- Quads
- Hamstrings
- Adductors
- Calves
- Hip Flexors
- Tensor Fasciae Latae
- Sartorius
- Shins
What this is
A muscle page answers two questions that usually live on different sites. The anatomical one — where does this attach, what does it do, which nerve supplies it — is written the way a textbook writes it. The practical one — why it is under-trained, what patterns it, what goes wrong — is written the way a coach says it. Both are on one page because they are about one muscle.
Exercise pages carry numbered technique and the mistakes that make a movement stop working. No sets, no reps, no loads: those depend on the person, and a static page cannot know them.