Explain how calisthenics can include both isometric and isotonic exercises.

In calisthenics, the resistance is provided by moving the body against the force of gravity. ... Push-ups and sit-ups are isotonic calisthenics that involve muscle movement, while isometric exercises such as yoga require great effort to hold the body motionless in different positions.

Explanation:

In calisthenics, the resistance is provided by moving the body against the force of gravity. ... Push-ups and sit-ups are isotonic calisthenics that involve muscle movement, Explanation:

it is definitely false.

exposure to hazardous carcinogens and toxic substances can cause breathing problems, such as copd and various types of cancer. it also increases the risk of heart attacks and strokes and has serious (but no less unattractive) side effects, such as aging, yellow teeth, a terrible smell and damage to the vocal cords.