Pelvis is positioned forward and downward. Hips are slightly flexed and lumbar spine is excessively hyperextended. Hip flexors, erector spinae are short. Abdominal, hamstrings, gluteus maximus muscles may be weak. Increased risk of lower back injury during standing or lying hip extension, flexion, or stabilization activities, and weighted overhead activities. See abdominal weakness and hip flexor inflexibility.
– Examples of affected exercises:
– Squat
– Hack Squat
– Military Press (standing)
– Roman Chair Sit-up

– Example preventative/corrective exercises:
– Hip Flexor: Kneeling Hip Flexor Stretch
– Erector Spinae: Lower Back Stretch
– Abdominal: Crunches
– Hamstrings: Leg Curl
– Gluteus: Seated Leg Press