Position one heel on forward edge of platform. Grasp support with other hand for balance. Lift other leg to rear by bending knee.
Pull forefoot up toward body as far as possible. Return by extending foot until toes are pointed downward. Repeat. Continue with opposite leg.
Keep knee and hip straight throughout exercise. Exercise can be made more difficult by positioning heels closer to edge of platform. See Dorsal Flexor Calf Exercise Analyses.
Use lighter load or position heels more on platform if you need to assist with hands used for support. Resistance can be reduced positioning heels further onto calf block or platform or using both legs.
The exercise can be made more difficult by positioning heels closer to edge of platform. Dumbbell can also be held in one hand.