Clinic Readiness Practice Test

The main idea here is how strength is graded by Manual Muscle Testing: movement through the full range of motion against gravity, without any extra resistance, represents a mid-range level of strength. It shows the muscle can generate enough force to move the limb against the weight of the limb itself, but it cannot sustain that movement when an examiner adds resistance. This places it above movements that occur only with gravity eliminated, and below movements that can tolerate external resistance. So the description given matches the level on the scale where the patient can go through the full ROM against gravity but cannot resist added force.