For an overactive lateral gastrocnemius, the CPT7 guide recommends static stretching to lengthen the muscle and reduce tension via autogenic inhibition. Static flexibility involves holding a stretch for ~30 seconds, allowing the Golgi tendon organs to signal relaxation. This is part of the corrective flexibility approach in NASM's flexibility continuum, used to address overactivity before dynamic or performance-focused stretching. Active or dynamic stretching is better suited for warming up underactive muscles, while plyometric work is not appropriate for addressing overactivity.