Isometric exercises don’t involve any movement but simply work a muscle or muscle group by holding a challenging position while your muscles are engaged.This form of exercise involves holding one position for what can seem like forever, such as planks.

The Benefits of Isometric Exercises

Isometric exercises lead to significant benefits for muscular endurance, functional fitness, and strength. The benefits include:
Building muscular endurance. They improve your muscles ability to work for an extended period of time, improving muscular endurance required to run, lift heavy weights, walk, or even stand for prolonged periods.

Improving everyday life

Practicing isometric exercises can help improve the way you move in your daily life. For example if you struggle to push yourself up off a chair or go up the stairs due to lower-body weakness, performing wall sits, which put your body in the same posture as it’s in while climbing stairs or sitting and thus target similar muscles, can help you build strength in that position, improving your ability to carry out these basic tasks.

Boosting strength and reducing pain

Isometric exercises are often used in rehabilitation programs after injury or after surgery. Since the muscles aren’t repeatedly being lengthened and shortened during isometric exercises, these moves typically don’t cause any pain, and they can have a pain-relieving effect.

Easy on your joints

Due to their static nature, isometric exercises are low-impact, meaning they put little pressure on your joints.
Watch out for my next blog which has some suggested isometric exercises for a full-body workout.

(Source: https://www.shape.com)