What principle of exercise states that the only way to improve fitness is to increase one variable, such as resistance or repetitions, as your fitness level improves?

Overload: A principle of exercise that states that the only way to improve fitness is to increase over time. This can mean increasing the amount of resistance, increasing the amount of time, or increasing the speed. When just beginning an exercise, it is generally difficult

his week a heat wave will be hitting, and most of the country will be experiencing temperatures above average for july. due to humidity, the temperature outside can feel even warmer than it actually is. this adjusted temperature, often referred to as the “feels like” temperature is called the heat index. the chart shows the heat index, which is calculated based on temperature and relative humidity. use this chart to answer the following questions.