ITF Physical Conditioning 2 — Questions and Answers
Question 1: Which energy system is predominantly used during a typical tennis rally lasting 6–10 seconds?
- Oxidative (aerobic) system
- ATP-PCr (phosphocreatine) system (Correct answer)
- Glycolytic (lactic acid) system
- Both glycolytic and oxidative equally
Correct answer: ATP-PCr (phosphocreatine) system
Short, explosive rallies rely primarily on the ATP-PCr system for immediate energy.
Question 2: What is the recommended work-to-rest ratio coaches should train players to tolerate in competitive tennis?
- 1:1
- 1:2
- 1:3 (Correct answer)
- 1:5
Correct answer: 1:3
Tennis has an approximate 1:3 work-to-rest ratio, meaning players rest roughly three times longer than they play.
Question 3: Which type of muscle fiber is most important for the explosive movements in tennis?
- Type I (slow-twitch)
- Type IIa (fast-twitch oxidative)
- Type IIx (fast-twitch glycolytic) (Correct answer)
- Type III (cardiac)
Correct answer: Type IIx (fast-twitch glycolytic)
Type IIx fast-twitch fibers produce the highest force and speed needed for explosive tennis movements.
Question 4: When designing a periodized plan for a junior tennis player, which training phase focuses on building a broad aerobic base?
- Competition phase
- Transition (recovery) phase
- General preparation phase (Correct answer)
- Pre-competition phase
Correct answer: General preparation phase
The general preparation phase emphasizes building a broad aerobic foundation before sport-specific conditioning.
Question 5: A tennis coach notices a player fatigues during the third set and errors increase. Which fitness component is most likely deficient?
- Muscular strength
- Reaction time
- Aerobic endurance (Correct answer)
- Flexibility
Correct answer: Aerobic endurance
Declining performance in later sets is a classic sign of insufficient aerobic endurance capacity.
Question 6: According to ITF principles, what is the primary purpose of a cool-down after intense training?
- Increase muscle hypertrophy
- Restore heart rate and remove metabolic by-products (Correct answer)
- Improve explosive power
- Increase anaerobic threshold
Correct answer: Restore heart rate and remove metabolic by-products
Cool-down helps gradually lower heart rate and flush lactic acid and other metabolic waste from muscles.
Question 7: Which assessment is most appropriate for measuring a tennis player's maximal aerobic capacity?
- Standing broad jump
- 20-meter sprint
- Yo-Yo Intermittent Recovery Test (Correct answer)
- Sit-and-reach test
Correct answer: Yo-Yo Intermittent Recovery Test
The Yo-Yo Intermittent Recovery Test closely mimics tennis's intermittent demands and estimates VO2max.
ITF Physical Conditioning 2
Which energy system is predominantly used during a typical tennis rally lasting 6–10 seconds?