Glenohumeral Joint Biomechanics | Kinematics, Kinetics & Arthrokinematics | By Dr, Lokesh Sharma PT

In this video, we explore the biomechanics of the glenohumeral joint, the highly mobile ball-and-socket joint of the shoulder complex. This lecture explains the joint's movements, muscle forces, arthrokinematics, and mechanisms of stability, with a focus on physiotherapy and clinical applications. 📚 Topics Covered in This Video: 🔹 1. Glenohumeral Joint Anatomy Humeral head and glenoid cavity Articular surfaces and glenoid labrum Joint capsule and supporting ligaments 🔹 2. Kinematics of the Glenohumeral Joint Flexion and extension Abduction and adduction Internal and external rotation Movement planes and axes 🔹 3. Kinetics of the Glenohumeral Joint Muscle forces and joint reaction forces Role of the deltoid muscle during shoulder abduction Rotator cuff muscle function Force couples and dynamic stabilization 🔹 4. Arthrokinematics Roll and glide of the humeral head Convex-on-concave principles Joint surface movements during shoulder abduction 🔹 5. Glenohumeral Joint Stability Dynamic stabilization by the rotator cuff Static stabilization by the labrum, capsule, and ligaments Balance between shoulder mobility and stability 🔹 6. Clinical Relevance in Physiotherapy Understanding normal shoulder mechanics Identifying abnormal movement patterns Application of biomechanics in clinical assessment and rehabilitation 🎯 Clinical Takeaway: Normal shoulder function depends on coordinated muscle activity, appropriate humeral head movement, and scapular control. The rotator cuff helps stabilize the humeral head while the deltoid generates important forces for shoulder elevation. Understanding these mechanisms helps physiotherapists assess shoulder dysfunction and plan appropriate rehabilitation. 👨‍⚕️ Who Should Watch? BPT and MPT students Physiotherapists and healthcare professionals Students preparing for practical examinations and OSCEs Students studying anatomy, kinesiology, and biomechanics 👍 If this video helps you, please LIKE, SHARE, and SUBSCRIBE to PhysioX Studio for more educational videos on physiotherapy, joint biomechanics, special tests, anatomy, and rehabilitation exercises. 🔔 Turn on notifications for upcoming educational videos! ⚠️ Disclaimer: This video is intended for educational purposes only. It should not be used as the sole basis for diagnosing or treating a medical condition. Consult a qualified healthcare professional for individual assessment and treatment. #GlenohumeralJoint #ShoulderBiomechanics #Physiotherapy #Kinematics #Kinetics #Arthrokinematics #ShoulderJoint #JointBiomechanics #Anatomy #PhysioXStudio