Answer: B
Explanation:
After a muscle fiber is stimulated by a nerve signal, a release of stored calcium ions leads to muscle contraction.
Common electrolytes include sodium, chloride, magnesium, calcium and potassium.
Sodium and potassium help in the generation of nerve impulses while calcium aids muscle contraction. Sodium is also actively involved in the movement across cell membranes.
The specific aerobic exercise is the most important factor if a person's goal is to increase his or her overall fitness. Aerobic exercises means "with oxygen" which will increase your heart rate while working out. Some of the specific aerobic exercises include brisk walking, swimming, running, also known as cardio workouts.
Answer:
A. a synthetic version of the hormone testosterone
Explanation:
According to www.drugabuse.gov, ""Anabolic" refers to muscle building, and "androgenic" refers to increased male sex characteristics."
When on the synthetic version of testosterone, the body gains a lot of muscle mass. A good way to see the changes brought on by testosterone are looking at before and after photos of FtM patients.
Answer:
The statement is "False."
Explanation:
Doing cardiovascular exercise is essential as doing strength training. Both have <em>different targets.</em> Strength training targets the <u>muscles of the body.</u> It promotes bone growth and makes you stronger. On the other hand, cardio exercise targets the <u>heart rate</u>. The more the heart pumps, the more oxygen the blood receives in the body.
Strength training gives you an<em> afterburn effect </em>that allows you to keep burning calories even after you workout, while cardio exercise allows you to burn more calories in a shorter span time–especially when you're doing <em>high-intensity exercise</em>.
Clearly, both strength training and cardio exercise are essential.
