Marcha Humana ~repack~ Jun 2026

| Phase | Primary Muscles | Action | |-------|----------------|--------| | Initial Contact | | Dorsiflexion (clear foot) | | Loading Response | Quadriceps , Gluteus maximus | Eccentric knee control, hip extension | | Midstance | Gluteus medius/minimus | Pelvic stability (prevents Trendelenburg) | | Terminal Stance | Gastrocnemius , Soleus | Heel rise, propulsion | | Pre-swing | Rectus femoris (eccentric) | Knee flexion control | | Swing | Iliopsoas (hip flexor), Hamstrings (deceleration) | Limb advancement & preparation |

Variables como el tiempo de doble apoyo y el ancho de la base de sustentación. marcha humana

| Gait Pattern | Cause | Characteristics | |--------------|-------|------------------| | | Weak gluteus medius | Pelvis drops on swing side; trunk lurches toward stance side. | | Steppage (Foot drop) | Weak dorsiflexors (e.g., peroneal nerve palsy) | Excessive hip/knee flexion during swing (high-stepping). | | Antalgic | Pain (e.g., osteoarthritis) | Shortened stance phase on painful side; decreased walking speed. | | Hemiplegic (Circumduction) | Stroke | Stiff leg swings in a semicircle; arm flexed. | | Parkinsonian | Basal ganglia dysfunction | Shuffling, reduced arm swing, en bloc turning, festination. | | Ataxic | Cerebellar dysfunction | Wide base, irregular step length, staggering (like alcohol intoxication). | | Myopathic (Waddling) | Proximal muscle weakness (e.g., muscular dystrophy) | Pelvic drop bilaterally, exaggerated lumbar lordosis. | | Phase | Primary Muscles | Action |