Nordic curl - reversed ("Nordic curl, reverse" Iliopsoas/quadriceps strengthening eccentric)

Kneel up high on a mat.
Your legs should be hips distance apart.
Cross your arms over your chest and activate your buttock and abdominal muscles.
Keeping your hips pushed forward in line with your body and thighs, slowly lean your whole body back over your calves.
Do not allow your hips to drop backwards from your body and thighs.
Control the movement as you return to the start position and repeat at a slow to steady pace.