Uploaded January 2026 | Updated September 2026, 3 weeks ago
How do isolation machines really work—and how do you use them correctly? 🏋️‍♂️
In this short, UC Davis Health exercise physiologist Keith Baar demonstrates the leg extension machine and explains a key principle behind all isolation exercises: aligning your body’s axis of rotation with the machine’s axis of rotation.
Professor Baar breaks down why proper setup matters, how to move through a full range of motion, and why slowing down the eccentric (lowering) phase can help muscles get stronger and bigger. These fundamentals apply not just to leg extensions, but to leg curls, chest flys, lateral raises, and biceps machines—making this an essential tip for beginners learning how to train safely and effectively in the gym.
Video description: Professor Baar in a gym using a leg extension machine.
#GymTips #BeginnerWorkout #LegExtensions #StrengthTraining #IsolationExercises
How do isolation machines really work—and how do you use them correctly? 🏋️‍♂️
In this short, UC Davis Health exercise physiologist Keith Baar demonstrates the leg extension machine and explains a key principle behind all isolation exercises: aligning your body’s axis of rotation with the machine’s axis of rotation.
Professor Baar breaks down why proper setup matters, how to move through a full range of motion, and why slowing down the eccentric (lowering) phase can help muscles get stronger and bigger. These fundamentals apply not just to leg extensions, but to leg curls, chest flys, lateral raises, and biceps machines—making this an essential tip for beginners learning how to train safely and effectively in the gym.
Video description: Professor Baar in a gym using a leg extension machine.
#GymTips #BeginnerWorkout #LegExtensions #StrengthTraining #IsolationExercises
