Which type of resistance is easier to quantify and often used when increasing load?

• A. Mechanical resistance
• B. Manual resistance
• C. Elastic resistance
• D. Bodyweight resistance

Answer: (A)

When thinking about progressive overload, the ability to quantify the load precisely is crucial. Mechanical resistance—external weights or machines that provide a fixed amount of load—fits this need best because the resistance is a defined quantity, like a certain number of kilograms or pounds. You can increase the load in exact steps, track progress, and keep variables consistent across sessions.

Manual resistance relies on another person’s strength, which can vary with pace, fatigue, and technique, making it hard to measure and reproduce the same load every time. Elastic resistance changes with how much the band is stretched and the joint angle, so the actual tension isn’t as predictable as a set weight. Bodyweight resistance depends on the person’s own mass and can be harder to adjust precisely without altering leverage or adding external load.

So the option with fixed, measurable load—mechanical resistance—is the easiest to quantify and is commonly used when increasing load.