On your hands and knees, keep your knee bent at 90 degrees and kick heel to ceiling.
STAY UPDATED
Sign-up for our BETA newsletter. Training tips, research updates, videos and articles - and we’ll never sell your info.
×
On your hands and knees, keep your knee bent at 90 degrees and kick heel to ceiling.
Sign-up for our BETA newsletter. Training tips, research updates, videos and articles - and we’ll never sell your info.