2021(Updated) Afaa Gfi Exam Prep

2021(updated) AFAA GFI EXAM PREPKinetic Chain Brain & spinal cord. Coordinates activity of body parts. Mechanoreceptors Senses distortion in body tissue. Goldi Tendon Organs Senses change in tension. Muscle Spindles Sense changes in length. Proprioception The cumulative sensory input to the central nervous system from all mechanoreceptors that sense body position and limb movement. Stabilization/Stabilizers of the Core Transverse abdominis, multifidus, internal & external obliques, diaphragm, pelvic floor muscles, rotator cuff, psoas major, rectus abdominis, gluteus medius, adductor complex Movement of the Core Latissimus dorsi, hip flexors, hamstring complex, quadriceps, pectoralis major, deltoids, gluteus maximus, triceps, biceps, erector spinae Tendons Connect muscle to bone Sarcomeres Individual contractile units. Ex. Actin and Myosin. Type I (Slow Twitch) Aerobic / Resistant to fatigue Type II (Fast Twitch) Anaerobic / Faster to fatigue / Produce more speed and strength Behavioral Properties of Muscle Extensibility, elasticity, irritability, ability to develop tension Isolated Function of Quadriceps (rectus femoris, vastus lateralis, medialis, and intermedius) Knee Extension Common Exercise: Squat (upward phase) Isolated Function of Hamstrings (semitendinosus, semimembranosus, biceps femoris) Knee Flexion Common Exercise: Hamstrings curl Isolated Function of Gastrocnemius Plantar Flexion Common Exercise: Calf Raise Isolated Function of Gluteus Maximus Hip Extension & External Rotation Common Exercise: Lunge (upward phase) Isolated Function of Rectus Abdominus Spinal flexion, lateral flexion, and rotation Common Exercise: Ball crunch Isolated Function of Pectoralis Major Shoulder flexion and horizontal adduction Common Exercise: Push-up Isolated Function of Latissimus Dorsi Shoulder extension, adduction, and rotation Common Exercise: Band row Isolated Function of Biceps Elbow Flexion Common Exercise: Biceps Curl Isolated Function of Triceps Elbow Extension Common Exercise: Triceps Extension Ligaments Connect bone to bone