The Basics of Building Muscles

How many muscles do we have?

• More than 700

• Over 600

• Exactly 500

• Around 300

What fraction of our body weight do muscles make up?

• 1/4

• 1/3 to 1/2

• 1/2 to 2/3

• Below 1/4

What happens when muscles are exposed to stress?

• They do not change

• They become immune to damage

• They undergo microscopic damage

• They shrink immediately

What is the process called when muscles grow in size?

• Eccentric contraction

• Atrophy

• Hypertrophy

• Muscle reduction

What leads to muscular atrophy?

• High protein intake

• Lack of resistance

• Adequate rest

• Excessive exercise

What is essential besides activity for muscle growth?

• Sunlight and water

• Proper nutrition, hormones, and rest

• Carbohydrates only

• Vitamin supplements

What role does protein play in muscle growth?

• It decreases muscle mass

• It replaces damaged muscle fibers with fat

• It has no effect

• It preserves muscle mass

Which factors affect the muscle repair mechanism?

• Outdoor activities

• Gender and age

• Time of day

• Amount of water intake