Bro I know how to sprint... I sprint on GRASS so I'm also grounding while using cope angkle weights for "microfractures"
These tensile forces whilst having microfractures, it can influence bone remodeling, but it’s unlikely to cause significant lengthening in
fully developed bone. Cortical bone, which isnt malleable enough and compact, resists deformation.
Theres also some risks to consider
Stress fractures – Overloading bones can lead to injuries instead of controlled remodeling depending on your body.
Muscle and tendon stress– Prolonged tension can overstress soft tissues(Big Part).
Bone discrepencies – Uneven forces might create unintended bone deformities especially if growing(Open Plates).
Osteoarthritis - Overwear of joints via sprinting/ exercises tailored to induce microfractures can really gnaw at the cartilage( Especially if you're doing this every day in order to achieve results).
Also, if it does happen to lengthen, results may or may not be considerable to an extent. Maybe as in mm or possibly 1-1.5 cm over a prolonged period of time.