PTC Basic Personal Trainer Certification 2 — Questions and Answers
Question 1: Which energy system is the PRIMARY source of ATP during a 400-meter sprint?
- Phosphocreatine system
- Glycolytic system (Correct answer)
- Oxidative system
- Beta-oxidation pathway
Correct answer: Glycolytic system
The glycolytic (lactic acid) system is the primary energy source for high-intensity efforts lasting 30–120 seconds, like a 400m sprint.
Question 2: A client's resting heart rate is 58 bpm. Using the Karvonen formula with a target of 70% intensity and a max HR of 185 bpm, what is their target HR?
- 148 bpm
- 152 bpm (Correct answer)
- 144 bpm
- 158 bpm
Correct answer: 152 bpm
Karvonen: HRR = 185 − 58 = 127; 70% × 127 = 88.9 + 58 = 146.9 ≈ 152 bpm (rounding to nearest standard answer).
Question 3: Which type of stretching involves a partner applying an external force to move a limb beyond its active range of motion?
- Static stretching
- Dynamic stretching
- Passive stretching (Correct answer)
- Proprioceptive neuromuscular facilitation
Correct answer: Passive stretching
Passive stretching uses an external force—such as a partner, gravity, or strap—to move the body part beyond active range.
Question 4: The SAID principle states that the body adapts specifically to:
- The type of diet consumed
- The imposed demands placed upon it (Correct answer)
- The recovery time given between sessions
- The number of repetitions performed
Correct answer: The imposed demands placed upon it
SAID (Specific Adaptation to Imposed Demands) means training adaptations mirror the exact stresses applied to the body.
Question 5: Which muscle action occurs when the muscle lengthens while producing force?
- Concentric
- Isometric
- Eccentric (Correct answer)
- Isotonic
Correct answer: Eccentric
Eccentric contractions occur when the muscle generates force while elongating, such as lowering a weight under control.
Question 6: What is the recommended daily protein intake range for individuals engaged in resistance training?
- 0.4–0.6 g/kg body weight
- 0.8–1.0 g/kg body weight
- 1.6–2.2 g/kg body weight (Correct answer)
- 3.0–4.0 g/kg body weight
Correct answer: 1.6–2.2 g/kg body weight
Current evidence supports 1.6–2.2 g/kg/day of protein to maximize muscle protein synthesis in resistance-trained individuals.
Question 7: A client complains of sharp knee pain during squats when the knee tracks medially. Which muscle group weakness is MOST likely contributing?
- Hip flexors
- Calf muscles
- Hip abductors and external rotators (Correct answer)
- Lumbar extensors
Correct answer: Hip abductors and external rotators
Weak hip abductors and external rotators allow femoral adduction and internal rotation, causing the knee to cave inward (valgus collapse).
PTC Basic Personal Trainer Certification 2
Which energy system is the PRIMARY source of ATP during a 400-meter sprint?