Total Volume Lifted (TVL) is a measure of the weight (or volume) moved. It is calculated as Weight × Reps × TVL Factor.

The TVL Factor is "1" or "2", depending on the type of exercise.

For certain exercises (such as Bicep Curls), the weight you are lifting is logged as the weight held in each hand. E.g., If you are performing Bicep Curls with 20 lb dumbbells, this means you have 20 lbs in your left hand, and 20 lbs in your right hand.

To factor this in, we include the TVL Factor in the volume equation. Any exercise you see a "x2" on the weight selector will have the x2 TVL Factor included automatically.

TVL is a good proxy for the amount of work you did during a workout. Generally, the higher the TVL, the more strain you put on your body. It serves as a useful representation of the stress placed on your muscles.

If your goals are to increase muscle mass or gain strength, you should aim to increase your volume over time for each muscle group. However, the type of training you do will affect the rate at which your TVL increases. Remember, more is not necessarily better.

Bodyweight exercises do not contribute to TVL. While this might seem counterintuitive, it is helpful to understand that Total Volume Lifted is a measure of the external weight lifted during a workout. When performing bodyweight exercises there are no external weights being lifted, and thus the TVL for bodyweight exercises is zero.