Which of the following is an example of Force as a factor in poor body mechanics?

• A. Typing on a computer.
• B. Sitting at a desk.
• C. Holding a phone to your ear.
• D. Picking up or pushing a box.

Answer: (D)

The main idea here is understanding how applying physical force contributes to poor body mechanics. Force refers to the effort needed to move or lift something. Picking up or pushing a box clearly involves exerting noticeable strength to move an object, often with a load that can strain the back, shoulders, and arms if technique isn’t good (for example, bending at the back, twisting, or not using the legs). This direct use of heavy or awkward force is a classic factor in poor mechanics.

In the other scenarios, the issue isn’t a large physical load. Typing on a computer mainly involves repetitive motions and can cause strain from repetition or poor posture over time. Sitting at a desk is about static posture and comfort, not the amount of force exerted. Holding a phone to your ear involves maintaining a posture with minimal force, so the force factor isn’t the key problem there. So, the action that best illustrates Force as a factor is lifting or pushing a box, since it centers on the amount of physical effort required.