You are going to initiate the movement by driving through the rear leg toe to press the knee straight, hip extending to generate one continuous line of force. (onnit.com)
When you can simply rest in a squat (when your hamstrings touch your calves), you can work on initiating movements from this new movement base. (neatstrength.com)
With just a little encouragement, you can prompt customers to initiate a movement of storytelling around your brand. (inc.com)