Fig. 3

CP affects muscle structure at the level of the muscle-tendon unit (A), the fascicles (B), and sarcomeres (C). A: Muscle belly lengths have been observed as shorter in CP, while tendons have been reported as longer. B: Fascicle lengths (green line) are reported to be shorter or similar in length between individuals with CP and TD cohorts, while pennation angles (red) are reported as similar or smaller in individuals with CP, sometimes with joint angle dependencies. C: microendoscopy image shows a muscle fibre and sarcomere striation pattern, blue line captures ~ 20 sarcomeres in series, reported to be longer in individuals with CP. Figure our own, created using Adobe Illustrator (Adobe, Inc., San Jose, CA, USA) under the University of Auckland site license