Tight hip flexors are a musculoskeletal imbalance where the muscles connecting your thighs to your pelvis become shortened and overactive due to prolonged sitting or postural dysfunction.
Lower back tightness is a musculoskeletal condition where the muscles surrounding the lumbar spine become overactivated, shortened, or fatigued - typically due to sustained poor posture or movement imbalances.
Chest opening for posture is the practice of systematically stretching shortened anterior muscles and reactivating weakened posterior muscles to restore natural spinal alignment and rib cage mobility.