Follow the step-by-step instructions for this stretch.
Plantar Fasciitis
Increased muscle force does not induce greater stretch-induced damage to calf muscles during work-matched heel drop exercise
External tibial torsion and lower back pain — The Gait Guys
Increased muscle force does not induce greater stretch-induced damage to calf muscles during work-matched heel drop exercise
Conservative Treatment for Primary Metatarsalgia
Daily activity in minimal footwear increases foot strength
Calf strength, the medial foot tripod, and pain in the great toe — The Gait Guys
The single-leg heel raise does not predict maximal plantar flexion strength in healthy males and females
Biomechanics, Free Full-Text
Plantar Flexion: 7 Exercises and Common Injuries
Breaking pointe: Foot and ankle injuries in dance
Simultaneous quantification of ankle, muscle, and tendon impedance in humans
Plantar flexion matters, too. Don't get stuck only on ankle rocker/dorsiflexion. — The Gait Guys