Front knee caves inward
Glute med and core fail under the instability of the suspended rear foot.
Overactive muscles
Adductor complexTFL
Corrective work
Foam RollAdductors↗Foam RollTFL↗StretchButterfly adductor stretch↗Glute med and core fail under the instability of the suspended rear foot.
Hip flexors restrict the upright lunge under the TRX suspension.