Race Strategy

What is the primary energy system used by sprinters during a 100m race?

• Aerobic system

• Anaerobic glycolysis

• ATP-PC system

• Lactic acid system

Tags

NGSS.HS-LS2-3

Which of the following factors is most critical in determining the maximum speed of a race car?

• Aerodynamics

• Fuel type

• Driver skill

• Tire pressure

In a marathon, which physiological adaptation is most beneficial for endurance?

• Increased lung capacity

• Higher lactic acid production

• Improved anaerobic threshold

• Enhanced muscle hypertrophy

What is the role of lactic acid in muscle fatigue during a race?

• It provides energy for muscle contraction

• It acts as a buffer to prevent fatigue

• It accumulates and causes muscle fatigue

• It enhances oxygen delivery to muscles

Tags

NGSS.HS-LS2-3

Which scientific principle explains why a cyclist can maintain speed with less effort when drafting behind another cyclist?

• Newton's First Law of Motion

• Bernoulli's Principle

• Conservation of Energy

• Reduction of air resistance

How does altitude affect an athlete's performance in a long-distance race?

• Increases oxygen availability

• Decreases air resistance

• Reduces oxygen availability

• Enhances muscle strength

What is the primary reason for using carbohydrate loading before a race?

• To increase muscle mass

• To enhance glycogen stores

• To improve hydration

• To boost protein synthesis

Which type of muscle fiber is predominantly used in long-distance running?

• Type I (slow-twitch)

• Type IIa (fast-twitch oxidative)

• Type IIb (fast-twitch glycolytic)

• Type III (intermediate)

What is the effect of dehydration on an athlete's performance during a race?

• Improved endurance

• Increased strength

• Reduced endurance

• Enhanced speed

Which of the following is a biomechanical advantage of wearing lightweight running shoes?

• Increased friction

• Reduced energy expenditure

• Enhanced stability

• Improved cushioning