The Isometric Illusion: Can 3 Minutes Really Build Muscle? The claim that just three minutes of isometric exercise can build muscle has been circulating online, thanks to a Swedish neuroscientist.
This idea has piqued the interest of many, including Lucy Miller, a fitness expert who put this theory to the test. Isometric exercise isn't new; it's been around for decades.
Think wall sits, planks, or holding a squat – exercises where you maintain a position while keeping your muscles under tension without moving your joints.