1. A system of physical exercise in which muscles are tensed against an immovable object or against each other, without movement of the joints.
Usage: Usually used in the plural or as a mass noun.; Common in fitness and physical training contexts.

Examples

• Isometrics can help build muscle strength without requiring special equipment.
• She incorporated isometrics into her workout routine to improve core stability.
• Isometrics involve holding a position against resistance for several seconds.
• Many athletes use isometrics as a supplement to their regular training.
• Isometrics are effective for rehabilitation after an injury.
• You can perform isometrics anywhere, even in a small space.