Hips sag toward the mat between lifts
Glutes and hamstrings fail to maintain the reverse plank position.
Overactive muscles
Hip flexorsErector spinae
Corrective work
Foam RollErector spinae↗StretchHalf-kneeling hip flexor stretch↗Glutes and hamstrings fail to maintain the reverse plank position.
Shift the hands slightly forward or make fists to reduce wrist extension stress.