What is an alternative unit of measurement for workload on a bike, in addition to watts?

The alternative unit of measurement for workload on a bike, in addition to watts, is kilopond-meters per minute. This unit quantifies the amount of work done over time and is particularly relevant in the context of exercise and cycling, where workload is often measured based on how much force is exerted through a distance in a given time frame.

Kilopond-meters take into account the force of gravity and represent the work done when a one-kilopond force is applied over a distance of one meter. Since cycling involves overcoming resistance and moving a cyclist's body mass over distance, using kilopond-meters provides a meaningful representation of the work accomplished during cycling activities.

The other options do not directly relate to the concept of workload in the same way as kilopond-meters. Newtons per minute, for instance, is a unit of force rather than a measure of work or energy spent. Calories per hour could indicate energy expenditure but does not encapsulate work done in the mechanical sense relevant to cycling. Pounds per square inch is a unit of pressure, which is not applicable in measuring workload in this context.