Whether you want to improve your overall fitness or change up your existing exercise routine, isometric workouts can help increase muscle strength and endurance, improve bone density and joint stability, and even reduce stress levels.

Isometric training is a type of strength training that involves contracting your muscles against an immovable ...

In a 2014 study by Maeo et al titled Neuromuscular Adaptations Following 12 Week Maximal Voluntary Co-Contraction Training, subjects stood with their arm fixed at a 90 degree angle and performed a maximum voluntary isometric contraction for 4 seconds followed by 4 seconds of relaxation. This was considered one repetition. One set ...