Exercise continuum

1. Continuum theory suggests that we conduct low repetitions of very heavy weight expecting that it's the best way to maximize strength development. 
2.   To build strength and rehabilitate the wounded World War II soldiers, Dr Thomas Delorme employed a principle of musculoskeletal fitness that "overload". 
3. Overload is a demand on the muscle that's above normal. 
4. Dr Delrome  used the principle of overload to help the soldiers regain their strength. 
5. The idea that repeats of light exercise builds muscle endurance, while low reps of heavy exercise build strength. In fact, both systems are at work when we discuss fitness.
6. Endurance training typically refers to long duration, low to moderate intensity activity that builds cardiorespiratory fitness increasing the body's ability to use oxygen and produce energy for sustained movement. 
7. Many people think of jogging when they think of this type of exercise, although, it also encompasses everything from swimming to cycling to rowing. 
8. At the other end of the spectrum a short duration intense exercise that's usually associated with building muscle strength and size. Also known as musculoskeletal fitness. Many people refer to this type of exercise as resistance training. It encompasses everything from body-weight exercises such as push-ups to heavy barbell squats. 
9. When you're working with free weights or universal weight machines you tend to be performing resistance training.