Am I right in thinking that this exercise can be used to strengthen your feet aswell as your hips?
In the past I was given it by a physio due to my problems with flat feet / plantar fasciitis. The physio said to contract the arch of my foot as I was doing it in order to strengthen it and help rebuild my arches.
More recently, I was given this same exercise to strengthen my weak hips (including glute medius). And this physio (a different one to last time) said for me to keep my foot flat on the floor and focus on using my hip muscles to keep my balance.
I'm wondering, is it okay to use this exercise to strengthen my feet and hips simultaneously? Or should I perhaps take turns, and do sets focussing on my feet and then sets focusing on my hips?