Final answer:
Repetitions with a reduced range of motion are known as partial repetitions and are used in power training to increase muscle tension and intensity. The term 'closed reduction' refers to repositioning broken bones without surgery but is not related to exercise. Interval training involves cycles of high and medium intensity work but typically uses full range of motion.
Step-by-step explanation:
The type of repetitions completed with an intentionally reduced range of motion are often seen in power training or muscle endurance workouts where the focus is on maintaining tension in the muscles and increasing the intensity of the work. An example of this would be a partial repetition exercise in which the movement does not go through the full range of motion. In partial reps, only a segment of the exercise's full path is performed to target specific muscle groups or to overcome a weakness within the range of motion. These can be useful for overcoming plateaus in strength training by allowing to lift heavier weights or perform more reps with a shorter range of motion.
Another context where a reduced range of motion is used is in rehabilitation exercises or when practicing the closed reduction technique, where the goal is to realign broken bones without surgical intervention. However, this is a medical procedure conducted by healthcare professionals.
In the fitness context, reduced range of motion can be contrasted with exercises that follow a pattern of physical activity involving short periods of vigorous muscular work coupled with longer periods of medium and varied muscular effort. This pattern falls under the category of interval training, which cycles between high and medium intensity to increase overall fitness and performance.