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A structured route from the language of the body to a complete first region — the shoulder — and safe training principles.
Start from the absolute basics: how we describe the body, how it moves, and a complete first body region — the shoulder — followed by core safety principles.
The shared language of the body: position, directional terms, planes, and movements.
Prerequisite: Anatomical Position and Directional Terms
Prerequisite: Body Planes and Axes
The bones, joints, and muscles of the shoulder — your first complete body region.
Prerequisite: Fundamental Movement Terms
Prerequisite: The Shoulder: An Overview
Prerequisite: The Deltoid: Your Shoulder's Cap
The rib cage, the pectoralis major and its pushing role, and the muscles of breathing.
Prerequisite: Fundamental Movement Terms
Prerequisite: The Chest: An Overview
Prerequisite: The Chest: An Overview
The muscles that move the shoulder blades and pull the arms — the 'pull' balance to the chest.
Prerequisite: Fundamental Movement Terms
Prerequisite: The Upper Back: An Overview
The lumbar spine and its deep muscles, the hip hinge, and safe lifting mechanics.
Prerequisite: Fundamental Movement Terms
Prerequisite: The Lower Back: An Overview
The abdominal muscles that flex, rotate, and — most importantly — brace and stabilize the trunk.
Prerequisite: Fundamental Movement Terms
Prerequisite: The Core: An Overview
The pelvic ring and the ball-and-socket hip joint that links the spine to the legs.
Prerequisite: Fundamental Movement Terms
Prerequisite: The Pelvis & Hips: An Overview
The powerful hip extensors and pelvic stabilizers of the buttock.
Prerequisite: The Pelvis & Hips: An Overview
Prerequisite: The Glutes: An Overview
The quadriceps, hamstrings, adductors, and sartorius — the powerhouse muscles between hip and knee.
Prerequisite: The Pelvis & Hips: An Overview
Prerequisite: The Thighs: An Overview
The body's largest hinge joint — structure, ligaments, common injuries, and safe alignment.
Prerequisite: The Thighs: An Overview
Prerequisite: The Knee: An Overview
The calf, shin, and outer-leg muscles that move the ankle and absorb impact with every step.
Prerequisite: The Knee: An Overview
Prerequisite: The Lower Legs: An Overview
The body's base of support — the subtalar joint, the foot's arches, and balance.
Prerequisite: The Lower Legs: An Overview
Prerequisite: The Ankle & Foot: An Overview
The biceps and triceps opposing pair, plus their quieter helpers brachialis and coracobrachialis.
Prerequisite: Fundamental Movement Terms
Prerequisite: The Arms: An Overview
Three joints in one capsule — bending/straightening, forearm rotation, and common overuse injuries.
Prerequisite: The Arms: An Overview
Prerequisite: The Elbow: An Overview
The muscles that move the wrist and grip with the fingers.
Prerequisite: The Elbow: An Overview
Prerequisite: The Forearms & Hands: An Overview
The muscles that move and stabilize the head — posture, stability, and why text neck is damaging.
Prerequisite: The Forearms & Hands: An Overview
Prerequisite: The Head & Neck: An Overview
The central structural pillar: 33 bones with shock-absorbing discs, natural curves, and the importance of neutral spine and safe loading.
Prerequisite: The Head & Neck: An Overview
Prerequisite: Spine Structure and Natural Curves
General safety principles and understanding a personal trainer's scope of practice.
Prerequisite: The Shoulder: An Overview