“The psoas is a massive hip flexor muscle that runs from our lumbar spine ... tight and weak simply because it isn’t getting any action or even the slightest movement.” ...

Tight hip flexors, especially a deep muscle called the psoas, can silently stress your spine. Here's why this muscle deserves ...

Loosen tight hips and open your hip flexors and psoas with this quick 5-minute yoga stretch. Perfect for a break during the ...

uq.edu.au Objective In this study, asymmetry relative to the preferred kicking leg was determined if it exists for the psoas and quadratus lumborum muscles among elite Australian Football League (AFL) ...