Isometrics vs. Other Exercises

Isometric exercises and other forms of exercise can both provide results for an individual, but the results will differ. There is little or no movement when performing isometric exercises, so the results are different than from exercise that requires a full range of motion. There are both benefits and disadvantages, and these things should be considered before taking up an exercise regimen involving isometric exercises.

Isometric exercises are done will little or no movement, which means there is no change in joint angle or muscle length during the contraction phase. This is very different from other forms of exercise such as eccentric or concentric exercises, which do cause a change in joint angle and muscle length. Isometric exercises are usually performed by holding an exercise in the static position while resistance is fighting against you. An example would be doing a bicep curl and instead of curling up and back down, the curl is held in the up position with the muscle contracted for 6-8 seconds and then released. This form of exercise does improve strength, but the downfall is that the increase in strength is only in the joint angle that was used where concentric and eccentric exercises increase strength in all angles. Isometric exercises can also be good when short on time, as they can be done much quicker than other forms of resistance training.

Like anything, there are disadvantages to this type of exercise which should be taken into consideration. Things like increased blood pressure and decrease in muscle endurance are a couple that should be given strong consideration. Isometric exercises do provide some benefits not received from other types of exercise, but it is probably best to incorporate all types of exercise in order to receive the best results.