the principle of progressive overload states that the body must encounter what type of stress to drive adaptation?

According to the theory of progressive overload, stress levels must rise as a person gets stronger in order to maintain gains. In other words, we need to do more; we can't just keep doing the same thing and expect different outcomes. More can refer to greater amounts of weight, more repetitions, sets, exercises, frequency, pace, and/or less rest (more work per a given unit of time). Dr. Thomas Delorme created the idea of progressive overload while treating soldiers for wounds sustained during World War II[1]. He carefully increased the weight during resistance training to encourage more adaptations. This strategy was known as "Progressive Resistance Exercise" by the speaker. This technique has been widely incorporated into physical therapy programmes and is a foundational idea for strength training.

Key Learnings:

The progressive overload theory dictates that athlete training routines should gradually contain more stress.

Stressing an athlete out further is probably unneeded if they keep improving.

Athletes should aim for increasingly larger loads from week to week.

A single training day's performance is of considerably less importance than performance trends over time.

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