6 - 20 minutes per workout. Here at MedX Precision Fitness we make use of a tried, tested and proven exercise technique that requires our clients to always lift and lower the weight in a slow and controlled manner. In doing so, all momentum and acceleration are effectively eliminated from the action, keeping your muscles under continual contraction and your joints free from any unnecessary forces. Because momentum and acceleration are eliminated from the action, the muscle is more efficiently placed under load and therefore fatigues quickly. Because of this, the average session here at MedX Precision Fitness is under 20 minutes. This technique places a demand on your body that requires a significant amount of energy resources and because of this 15 to 20 minutes is typically the maximum amount of time people are able to effectively endure. more... See more text