Tight calf muscles can cause or aggravate pre-existing foot problems. When the calf muscles are too tight, and the foot tries to move up in dorsiflexion, ligaments and tendons in the arch of the foot get stretched and weaken. This can lead to many conditions including painful flatfeet, plantar fascitis, ankle arthritis, charcot arthropathy, diabetic forefoot ulcers, Achilles tendonitis, stress fracture of the foot and more.
Current methods of calf stretching do nothing to preserve the integrity of the arch of the foot. When the calves are stretched in traditional ways, at least some of the stretch ends up transferring to the foot arch. This causes your foot arch to weaken and flatten and can lead to multiple foot and ankle issues.