Answer :
Final answer:
To improve muscle tone and physique, follow the Training Principles of overload, progression, and specificity.
Explanation:
The three Training Principles described previously, overload, progression, and specificity, are key to muscular development. You must choose strength exercises that are challenging to overload your muscles, you must continue to increase the intensity over time to allow your muscles to adapt and grow stronger (progression), and you need to choose exercises to ensure you are focusing on each major muscle group. Improvements in muscle strength and endurance are progressive over time. Increases in the amount of weight or the days a week of exercising will result in stronger muscles.
