Introduces the contrast between runners who appear to rebound effortlessly and those who seem to spend more energy with each stride.

Speaks to runners who feel slower, heavier, or less comfortable than they once did, and introduces the possibility of understanding what has changed.

Outlines the author's three-layer model: restricted joint motion, tissue guarding, and ingrained movement patterns.

Explains the book's emphasis on recovering your own elastic movement rather than imposing one ideal running style on everyone.

A clinical story introduces the idea that changes in movement can affect how running feels and performs.

Looks at the growth of recreational running and the modern running movement, then considers injury and recovery.

Introduces elastic energy, the body's springs, and the connected system that helps make distance running possible.

Begins to explain running mechanics and how the body coordinates movement through a stride.

Explores the foot as a dynamic structure that must adapt to landing and contribute to propulsion.

Follows the relationship between foot motion and movement through the leg.

Frames common running injuries through the book's connected-chain model.

Examines foot movement patterns and their relationship to the Achilles and running mechanics.

Considers different ways the foot may lose its contribution to an efficient stride.

Explores how changes across connected joints can interrupt the timing of movement.

Discusses small joint-position changes and the author's view of their possible effects on muscle function and movement.

Looks at the knee in relation to the foot and hip rather than as an isolated hinge.

Explores the hip's rotational role within the larger running chain.

Examines the pelvis as a link between the two legs during alternating movement.

Explores the sacrum and pelvic joints in the author's model of connected stride mechanics.

Considers the spine as part of the system that carries and coordinates movement.

Looks at how arm swing and the upper body contribute to balance and running rhythm.

Explores the author's proposed relationship between head and neck position and movement below.

Brings together the structures that store and return energy during running.

Describes the author's model of how restricted movement and tissue responses can reinforce each other.

Continues the discussion of connected rotational movement and the loss of fluid motion.

Introduces the restoration stage: addressing movement the author believes has become restricted.

Moves from restoring movement to training the body's capacity to use it.

Considers areas a runner's existing training program may not address.

Focuses on joint movement and the role it plays in the author's broader model.

Discusses hands-on clinical work within the book's restore-then-train approach.

Considers common tools and interventions in the context of the book's movement framework.

Reads outer-knee symptoms through the connected mechanics of the leg.

Explores kneecap symptoms in relation to the movement of the wider chain.

Considers shin pain through the relationship between the foot and the forces travelling through the leg.

The author reflects on his own leg, the experience of training around restrictions, and the process of working toward running again.

Returns to the book's central idea: running as a coordinated, elastic movement rather than a collection of isolated parts.