Catalyst University
Temporomandibular Joint š² Mastication Muscles
In this video, we explore the anatomy and physiology of the 4 muscles of mastication (chewing) - temporalis, masseter, and medial and lateral pterygoids. More specifically, we cover their origins, insertions, actions, innervation, and...
Catalyst University
SI Joint Special Tests | Cluster of Laslett
In this video, we explore the Cluster of Laslett, a test item cluster used in the diagnosis of SI joint dysfunction. Specifically, I explain and demonstrate the following special tests: thigh thrust, distraction, sacral thrust, and...
Catalyst University
TherEx | Quad Sets, Straight Leg Raises (SLRs) & Progressions
In this video, I demonstrate and explain correct technique for quad sets and the straight leg raise (SLR) along with one good progression of the exercise.
Catalyst University
TherEx | Levator Scapulae Stretch
In this video, I demonstrate a stretch to the levator scapulae muscles.
Catalyst University
Cervical Rotation Lateral Flexion (CRLF) Test | Rationale & Interpretation
In this video, I explain and demonstrate the cervical rotation lateral flexion (CRLF) test, a special test used to evaluate patients with pain in the cervicothoracic junction and brachialgia.
Catalyst University
Alar Ligament Stress Test (with Rotation & Sidebending) | Demonstration & Interpretation
In this video, I explain and demonstrate the alar ligament stress test, which is used to assess integrity of the alar ligaments in the cervical spine. More specifically, we cover its rationale, interpretation of results, and psychometric...
Catalyst University
Abdominal Reflex | Procedure & Results Interpretation
n this video, I explain the abdominal reflex. More specifically, we discuss the reflex arc and how to determine whether or not the reflex is present/normal or abnormal.
Catalyst University
Meningitis Tests | Brudzinskiās & Kernigās Signs [+ Signs/Symptoms]
In this video, we explore the signs and symptoms of meningitis; and I explain and demonstrate three special tests used in the diagnosis of meningitis along with the rationale and interpretation of results. [1] Nuchal rigidity [2]...
Catalyst University
Median Nerve Glides EXPLAINED
In this video, I explain and demonstrate a couple variations of the MEDIAN nerve glide, which is used to treat a variety of conditions where adverse neural dynamics of the median nerve are involved.
Catalyst University
TherEx | Scalene Stretches [for Anterior, Middle, & Posterior Scalenes]
In this video, I demonstrate stretches targeting each of the scalene muscles: anterior, middle, and posterior scalenes.
Catalyst University
Lower Extremity Nerve Sensitizers | Tibial, Sural, & Peroneal Nerves
In this video, I explain and demonstrate the three major lower extremity nerve sensitizers, which are used to assess for adverse neural dynamics of the tibial, peroneal, and sural nerves.
Catalyst University
Cervical Distraction (Gapping) Test | Rationale & Interpretation
In this video, I explain and demonstrate the cervical distraction test, a special test used in the clinical prediction rule for a cervical radiculopathy.
Flipping Physics
Angular Acceleration Introduction
Angular acceleration is introduced by way of linear acceleration. The units of radians per second squared are discussed. Examples of objects which angular acceleration are shown.
Physics Girl
STRANGE Sand Acts Like Liquid
Bubbling air through sand can cause it to act like a liquid. Dianna Cowern and William Osman try to reproduce this popular GIF on Physics Girl. Sand liquefied!
Catalyst University
Carpal Tunnel Syndrome | Special Tests | Rationale & Interpretation
In this video, we will explore some common special tests that are used in the diagnosis of Carpal Tunnel Syndrome.
Catalyst University
Yergason's Test | Rationale & Interpretation
In this video, I explain and demonstrate Yergason's test, a special test used in the assessment of bicipital tendonopathies and SLAP tears of the shoulder.
Catalyst University
Extension-Rotation & Kemp Tests | Rationale & Interpretation
In this video, I explain and demonstrate two special tests that are extremely similar but are used to assess for different conditions of the lumbar spine. [1] Extension-rotation test ā zygapophyseal joint dysfunction [2] Kemp test ā...
Catalyst University
CMC Grind Test (for First CMC Joint Osteoarthritis)
In this video, I explain and demonstrate the CMC grind test, a special test used in the assessment of first CMC joint OA and to differentiate this condition from DeQuervain's tenosynovitis.
Catalyst University
Clarke's Sign (Patellar Grind Test) | Rationale & Interpretation
In this video, I explain and demonstrate the test for Clarkeās sign (AKA the patellar grind test), a special test used in the assessment of patellofemoral pain syndrome (PFPS).
Flipping Physics
Defining Pi for Physics
Pi is defined as the ratio of the circumference of a circle to its diameter. A frisbee is used to show the definition of pi. The units for pi, radians, are discussed. The conversion factor between revolutions, degrees, and radians is...
Catalyst University
TherEx | Suboccipital Stretches
In this video, I explain and demonstrate a stretch of the suboccipital muscle group.
Catalyst University
Vertebrobasilar Artery Insufficiency Test | Rationale & Interpretation
In this video, I explain and demonstrate the vertebrobasilar artery insufficiency test (VAT). More specifically, we cover the procedure, what constitutes a (+) test, and how the test works anatomically.
Catalyst University
Sciatic Nerve Glides EXPLAINED
In this video, I explain and demonstrate two variations of the sciatic nerve glide, a treatment often used with adverse neurodynamics of the sciatic nerve.
Catalyst University
Sag Sign Test | Rationale & Interpretation
In this video, I explain and demonstrate the posterior sag sign test, a special test used in the assessment of PCL injuries. More specifically, we will cover the procedure, interpretation of results, and its psychometric properties.