What is the formula for calculating mechanical work in resistance training?

The formula for calculating mechanical work in resistance training is defined as the product of weight lifted, the distance the weight is moved, and the number of repetitions performed. This aligns with the basic physics concept of work, which is defined as force applied (in this case, the weight lifted) multiplied by the distance over which that force is applied.

When lifting weights, the force is equivalent to the weight of the object (force due to gravity), while the distance is how far the weight is moved, typically measured vertically during a lift. By multiplying the weight by the vertical distance it is moved, you effectively calculate the total work done for one repetition. Multiplying this by the number of repetitions gives a complete picture of mechanical work during a workout session.

Other options, while they contain various elements of resistance training metrics, do not accurately capture the definition of work in this physical context, which centers specifically on weight, distance, and repetitions. Therefore, the first answer stands out as the correct and relevant formula for mechanical work in resistance training.