He found the exercises required no coordination patterns, by challenging posture and balancing limb movement.

The exercises require no special equipment except comfortable clothes, and a little space to do them.

"I'm afraid you won't be able to help me with the sort of self-study this exercise requires."

This exercise will require a detailed analysis so that the total spend on the building can be apportioned across the various constituent parts.

Or is its action based on a bodily skill whose exercise requires no computations?

The exercises do not require that students be in good physical condition.

Various exercises require a predominance of certain muscle fiber utilization over another.

This exercise, similar to the way many sculpture classes are taught, required that the finished product be equally viable from all sides.

The exercises require the patient's head and body to be tilted, turned and swung.

These exercises are often easier on the joints and require less balance.