Rounds, minus the stress
Explain It! Directory
Active Recall Oral Practice & AI-Grading
Getting put on the spot on rounds is how concepts actually stick — but the adrenaline doesn’t help you learn. Explain It gives you that same rep in private: pick a concept, explain it out loud in your own words, and an AI compares your answer to the chapter’s hidden model answer — then gives you a score and the specific points to firm up. No audience, no judgment, and you can redo it as many times as you like.
Part I
Musculoskeletal
31 chapters
- 1.Shoulder Anatomy, Instability, and ImpingementFreePractice
- 2.Rotator Cuff, Adhesive Capsulitis, and BicepsPractice
- 3.Shoulder Fractures, Winging, and Nerve EntrapmentPractice
- 4.Elbow Anatomy, Epicondylitis, and Throwing InjuriesPractice
- 5.Elbow Nerve Entrapments and Adult FracturesPractice
- 6.Wrist, Carpal Bones, Carpal Tunnel, and DeQuervainPractice
- 7.Hand: Flexor Pulleys, Trigger Finger, Dupuytren, and the Fingertip Deformity QuartetPractice
- 8.Hand: Thumb UCL Injury, Intrinsic Muscles, and Deformity by Nerve InjuryPractice
- 9.Hip Anatomy, Muscles, and Special TestsPractice
- 10.Hip Fractures, Arthroplasty, and Pediatric HipPractice
- 11.Knee Anatomy, ACL, PCL, and LigamentsPractice
- 12.Knee Meniscus, Patellofemoral, and OverusePractice
- 13.Ankle Anatomy, Lateral Sprains, Achilles Pathology, and Compartment SyndromePractice
- 14.Foot: Stress Fractures, Plantar Fasciitis, Morton, Lisfranc, and DeformitiesPractice
- 15.Spine: Anatomy, Disc Herniation, and RadiculopathyPractice
- 16.Spine: Stenosis, Spondylolisthesis, and Facet-Mediated PainPractice
- 17.Spine: Red Flags, Cauda Equina, Scoliosis, and Ankylosing SpondylitisPractice
- 18.Sports Medicine: Concussion, Return-to-Play Protocol, and StingersPractice
- 19.Sports Medicine: Exercise Physiology, Cardiac Equations, and Muscle PhysiologyPractice
- 20.Sports Medicine: Environmental Illness, Rhabdomyolysis, and Special PopulationsPractice
- 21.Rheumatoid Arthritis, Osteoarthritis, and Crystal ArthropathiesPractice
- 22.SLE, Inflammatory Myopathies, and SclerodermaPractice
- 23.Spondyloarthropathies and FibromyalgiaPractice
- 24.Osteoporosis Part 1: Diagnosis, DEXA, Risk FactorsPractice
- 25.Osteoporosis Part 2: Treatment and Fracture ManagementPractice
- 26.MSK Ultrasound and Joint InjectionPractice
- 27.Nerve Injury Classification and EDX CorrelationPractice
- 28.Salter-Harris Fractures and Pediatric MSKPractice
- 29.Complex Regional Pain Syndrome and Myofascial PainPractice
- 30.Groin Injuries, Athletic Pubalgia, and Leg Length DiscrepancyPractice
- 31.Sports Cardiac Issues, Special Populations, and Exercise-Induced BronchospasmPractice
Part II
Prosthetics & Orthotics
18 chapters
- 1.Gait Analysis and BiomechanicsPractice
- 2.Amputation Levels and EpidemiologyPractice
- 3.Surgical Principles and Post-Amputation RehabilitationPractice
- 4.Transtibial ProstheticsPractice
- 5.Transfemoral ProstheticsPractice
- 6.Upper Limb ProstheticsPractice
- 7.Lower Extremity OrthosesPractice
- 8.Spinal OrthosesPractice
- 9.Upper Limb OrthosesPractice
- 10.Advanced Prosthetic TechnologyPractice
- 11.Materials and FabricationPractice
- 12.Pediatric Prosthetics and OrthoticsPractice
- 13.Special Populations in Prosthetics and OrthoticsPractice
- 14.Outcomes and Energy ExpenditurePractice
- 15.Wheelchair and Power MobilityPractice
- 16.Ambulation Aids: Canes, Crutches, Walkers, and Weight-Bearing StatusPractice
- 17.Adaptive Driving, Environmental Control Units, and Medicare DME CriteriaPractice
- 18.Complications of Prosthetics, Orthotics, and MobilityPractice
Part III
Cerebrovascular / Stroke
14 chapters
- 1.Vascular Anatomy and Stroke SyndromesPractice
- 2.Acute Ischemic Stroke: Thrombolysis and ThrombectomyPractice
- 3.Acute Ischemic Stroke: Imaging, Blood Pressure Management, and AntithromboticsPractice
- 4.Intracerebral HemorrhagePractice
- 5.Subarachnoid Hemorrhage and Vascular MalformationsPractice
- 6.Stroke Motor Recovery, Brunnstrom Stages, and Constraint-Induced Movement TherapyPractice
- 7.Stroke Rehabilitation Interventions and Functional AssessmentPractice
- 8.Post-Stroke DysphagiaPractice
- 9.Post-Stroke Aphasia, Language Disorders, and DysarthriaPractice
- 10.Post-Stroke Cognitive DeficitsPractice
- 11.Post-Stroke Shoulder and Pain SyndromesPractice
- 12.Post-Stroke Medical ComplicationsPractice
- 13.Post-Stroke Sexuality, Driving, and Community ReintegrationPractice
- 14.Hypoxic-Ischemic Encephalopathy and Anoxic Brain InjuryPractice
Part IV
Spinal Cord Injury
14 chapters
- 1.Spinal Cord Anatomy and NeuroanatomyPractice
- 2.Epidemiology, Etiology, and PreventionPractice
- 3.ISNCSCI Classification and SCI SyndromesPractice
- 4.Pathophysiology and Acute ManagementPractice
- 5.Autonomic DysreflexiaPractice
- 6.Neurogenic Bladder ManagementPractice
- 7.Neurogenic Bowel and GI ComplicationsPractice
- 8.Respiratory ManagementPractice
- 9.Cardiovascular ComplicationsPractice
- 10.Spasticity ManagementPractice
- 11.Pain Syndromes After Spinal Cord InjuryPractice
- 12.Pressure InjuriesPractice
- 13.Sexuality, Fertility, and Reproductive HealthPractice
- 14.MSK Complications, Functional Outcomes, and the Rehabilitation ContinuumPractice
Part V
Traumatic Brain Injury
14 chapters
- 1.Epidemiology, Definitions, and PreventionPractice
- 2.Classification and Severity ScalesPractice
- 3.Pathophysiology of Traumatic Brain InjuryPractice
- 4.Neuroimaging in Traumatic Brain InjuryPractice
- 5.Acute Management of Severe TBIPractice
- 6.Disorders of ConsciousnessPractice
- 7.Medical and Neurological Complications After TBIPractice
- 8.Pharmacology After TBIPractice
- 9.Agitation and Behavioral ManagementPractice
- 10.Spasticity and Motor RecoveryPractice
- 11.Neuroendocrine Disorders After TBIPractice
- 12.Concussion, Mild TBI, and CTEPractice
- 13.Pediatric and Geriatric Traumatic Brain InjuryPractice
- 14.The Rehabilitation ContinuumPractice
Part VI
Pediatric Rehabilitation
19 chapters
- 1.Normal Development: Milestones, Grasp Progression, and Primitive ReflexesPractice
- 2.Developmental Screening, Red Flags, Autism, and IDEA Part C and Part BPractice
- 3.Cerebral Palsy: Definition, Etiology, Early Detection, and GMFCSPractice
- 4.Cerebral Palsy: Subtypes, the Tone-Management Ladder, Gait, and Hip SurveillancePractice
- 5.Spina Bifida and Neural Tube DefectsPractice
- 6.Duchenne and Becker Muscular Dystrophy and Spinal Muscular AtrophyPractice
- 7.Hereditary Neuropathies, Myotonic Dystrophy, and the Congenital MyopathiesPractice
- 8.Brachial Plexus Birth InjuriesPractice
- 9.Pediatric Traumatic Brain InjuryPractice
- 10.Pediatric Spinal Cord Injury and SCIWORAPractice
- 11.Genetic and Chromosomal SyndromesPractice
- 12.Pediatric MSK DisordersPractice
- 13.Juvenile Idiopathic Arthritis: ILAR Subtypes, Uveitis Screening, and MASPractice
- 14.Juvenile Myositis, Heritable Connective Tissue Disorders, and Infectious ArthritidesPractice
- 15.Pediatric Burns: TBSA, Depth, Parkland, and Anti-Deformity PositioningPractice
- 16.Pediatric Cancer Rehabilitation, Late Effects, and Sickle Cell DiseasePractice
- 17.Pediatric Pharmacology and Spasticity ManagementPractice
- 18.Orthotics, Assistive Technology, and OutcomesPractice
- 19.Early Intervention, School Services, and TransitionPractice
Part VII
Rehabilitation Topics
17 chapters
- 1.Pain Rehabilitation Part 1: Taxonomy, Neuroanatomy, and Non-Opioid PharmacologyPractice
- 2.Pain Rehab: Headaches, CRPS, and the Post-Amputation Pain TriadPractice
- 3.Pain Rehab: Myofascial Pain, Fibromyalgia, Cancer Pain, and Sympathetic BlocksPractice
- 4.Pain Rehabilitation Part 3: Interventional Procedures and NeuromodulationPractice
- 5.Spasticity Management: Definitions, Pharmacology, and InterventionsPractice
- 6.Neurogenic Bladder and BowelPractice
- 7.Dysphagia and NutritionPractice
- 8.Pressure InjuriesPractice
- 9.Functional Assessment: the ICF Framework, Ordinal Data, FIM, and BarthelPractice
- 10.Balance, Exertion, and Stroke-Recovery Scales, plus the IRF RulesPractice
- 11.Deconditioning, Immobility, and DVTPractice
- 12.Wheelchair Seating Part 1: Assessment, Measurements, Cushions, and Tilt vs ReclinePractice
- 13.Wheelchair Seating Part 2: Frames, Wheels, Propulsion, and Prescription by DiagnosisPractice
- 14.Movement DisordersPractice
- 15.Sleep DisordersPractice
- 16.Chronic Pelvic Pain and SexualityPractice
- 17.Psychological Adjustment to Disability, Caregiver Burden, Community Reintegration, and Vocational RehabilitationPractice
Part VIII
Medical Rehabilitation
14 chapters
- 1.Cardiac Rehabilitation: Phases, Risk Stratification, Exercise Prescription, and Special PopulationsPractice
- 2.Pulmonary Rehabilitation: PFTs, COPD Classification, Oxygen Therapy, Ventilator Weaning, and TracheostomyPractice
- 3.Cancer Rehabilitation: Fatigue, Lab-Value Precautions, Plexopathy, Lymphedema, Mirels Scoring, and Paraneoplastic SyndromesPractice
- 4.Burns Rehabilitation: Depth Classification, TBSA, Parkland Formula, Anti-Deformity Positioning, and Scar ManagementPractice
- 5.Organ Transplantation Rehabilitation: Denervated Heart, Immunosuppression, and Solid-Organ SpecificsPractice
- 6.Physical Modalities: Heat, Cold, Ultrasound, Diathermy, Electrical Stimulation, Iontophoresis, Traction, and BiofeedbackPractice
- 7.Geriatric Rehabilitation: Aging Physiology, Falls, Polypharmacy, Hip Fracture, Frailty, Delirium, and DementiaPractice
- 8.Sleep Disorders in Rehabilitation: Architecture, OSA, Central Apnea, Insomnia, Circadian Rhythm Disorders, REM Behavior Disorder, and Restless Legs SyndromePractice
- 9.Delirium in Medical Rehabilitation: Diagnosis, Subtypes, Prevention, and ManagementPractice
- 10.Lymphedema and Edema Management: Lymphatic Anatomy, ISL Staging, Complete Decongestive Therapy, and the Lymphedema-Versus-Venous-Versus-Lipedema TriadPractice
- 11.Post-COVID and PASC Rehabilitation: Fatigue, Post-Exertional Malaise, Dysautonomia and POTS, Cognitive Dysfunction, and the Pacing-Versus-Graded-Exercise Branch PointPractice
- 12.Polytrauma and Critical Illness: ICU-Acquired Weakness, CIP vs CIM, Early Mobilization, and Blast InjuryPractice
- 13.Palliative Care: Hospice Distinction, WHO Analgesic Ladder, Symptom Management, Goals of Care, and PrognosticationPractice
- 14.Endocrine and Metabolic Disorders in Rehabilitation: Diabetes, Diabetic Foot, Thyroid Myopathies, Pituitary, and Adrenal DisordersPractice
Part IX
Electrodiagnostics
13 chapters
- 1.Neurophysiology FundamentalsPractice
- 2.Instrumentation and Technical FactorsPractice
- 3.Nerve Conduction StudiesPractice
- 4.Late Responses, Repetitive Nerve Stimulation, Single-Fiber EMG, and Autonomic TestingPractice
- 5.Needle ElectromyographyPractice
- 6.RadiculopathyPractice
- 7.PlexopathyPractice
- 8.Entrapment Neuropathies: Upper ExtremityPractice
- 9.Entrapment Neuropathies: Lower ExtremityPractice
- 10.Polyneuropathy: Classification, Patterns, and Key DiagnosesPractice
- 11.Motor Neuron Disease: ALS, SMA, Kennedy Disease, and Post-Polio SyndromePractice
- 12.MyopathyPractice
- 13.Neuromuscular Junction DisordersPractice
Part X
Foundational Sciences
12 chapters
- 1.Brain Neuroanatomy: Cortical Maps, Basal Ganglia, Thalamus, and Brainstem NucleiPractice
- 2.Kinesiology and Biomechanics: Levers, Muscle Physiology, Contraction Types, and ArthrokinematicsPractice
- 3.Normal Gait Analysis: The Gait Cycle, Rancho Los Amigos Phases, Muscle Choreography, and Three RockersPractice
- 4.Exercise Physiology: Energy Systems, VO2max, Fick, METs, Karvonen, FITT, and Training AdaptationsPractice
- 5.Biostatistics and Research Design: Measurement Scales, 2x2 Tables, Study Hierarchy, and BiasPractice
- 6.Pharmacology Cross-Cutting: Opioid Equianalgesic Math, Neuropathic Pain Agents, and NSAIDsPractice
- 7.Peripheral Nerve Recovery: Seddon/Sunderland, Wallerian Degeneration, and RegenerationPractice
- 8.CNS Recovery and Neuroplasticity: Hebbian Learning, Cortical Reorganization, and Constraint-Induced Movement TherapyPractice
- 9.Musculoskeletal and Cardiopulmonary Aging: Sarcopenia, Osteoporosis Treatment, Isolated Systolic Hypertension, and the Age-Adjusted Blood GasPractice
- 10.The Creatinine That Lies: Renal and Pharmacokinetic Aging, Cognitive and Sensory Decline, and the Geriatric SyndromesPractice
- 11.Neuromuscular Junction Physiology: ACh Synthesis, Quantal Release, and the Safety FactorPractice
- 12.Spinal Cord, Cranial Nerve, and Peripheral Neuroanatomy: Reflex Arcs, ISNCSCI Key Muscles, Dermatomes, Cranial Nerves, Plexus Anatomy, and the Autonomic Nervous SystemPractice
Part XI
Neurologic Conditions
6 chapters
Part XII
Administration & Practice
4 chapters
- 1.CPT Coding, Billing, and Documentation: E/M Codes, Modifiers, the 8-Minute Rule, and IRF RequirementsPractice
- 2.Disability, Impairment, and Medicolegal Topics: ICF, AMA Guides 6th Edition, SSA, Workers' Comp, Capacity, and DaubertPractice
- 3.Practice Management and Quality: HIPAA, Bioethics, PDSA, Patient Safety, Malpractice, and MIPSPractice
- 4.Rehabilitation Team, Settings, and Care Coordination: Team Models, Levels of Care, Life Care Planning, Handoffs, and Compliance LawsPractice