CSCS Technology & Digital Tools 4 — Questions and Answers
Question 1: Heart rate variability (HRV) monitoring in athletes is primarily used to assess:
- Peak aerobic power output during maximal testing
- Autonomic nervous system balance and day-to-day recovery status (Correct answer)
- Anaerobic threshold from submaximal exercise protocols
- Muscle damage biomarkers following eccentric exercise bouts
Correct answer: Autonomic nervous system balance and day-to-day recovery status
HRV reflects the influence of the sympathetic and parasympathetic nervous systems on heart rhythm; suppressed HRV typically indicates accumulated fatigue or incomplete recovery.
Question 2: Actigraphy wristbands worn by athletes around the clock are commonly used to monitor:
- Local muscle oxygenation levels during practice
- Ground reaction forces during daily gait patterns
- Sleep duration, sleep quality, and daily activity levels (Correct answer)
- Blood glucose fluctuations across training and recovery periods
Correct answer: Sleep duration, sleep quality, and daily activity levels
Actigraphs use accelerometers to infer sleep-wake cycles and movement throughout the day, providing objective sleep and activity data without polysomnography.
Question 3: An athlete management system (AMS) such as Smartabase or Kitman Labs is primarily designed to:
- Automate travel logistics and hotel bookings for away competitions
- Manage contract negotiations and salary cap calculations
- Centralize wellness, training load, and performance data for the multidisciplinary team (Correct answer)
- Schedule facility bookings and preventive equipment maintenance work orders
Correct answer: Centralize wellness, training load, and performance data for the multidisciplinary team
An AMS serves as a hub where coaches, sports scientists, and medical staff share athlete data (wellness, load, GPS, testing) to inform collaborative decision-making.
Question 4: Session-RPE multiplied by session duration (in minutes) calculates:
- External training load in arbitrary units
- The athlete's biochemical stress response index
- Heart rate-based training impulse (TRIMP)
- Internal training load in arbitrary units (Correct answer)
Correct answer: Internal training load in arbitrary units
The Foster session-RPE method quantifies internal load: RPE (Borg CR-10) × duration = arbitrary units that reflect the athlete's perceived physiological strain.
Question 5: Near-infrared spectroscopy (NIRS) sensors placed over a muscle during exercise primarily measure:
- Local muscle temperature changes during contractions
- Cortisol concentration in subcutaneous adipose tissue
- Electrical impedance variations in muscle fiber composition
- Muscle oxygen saturation (SmO2) and oxygenated hemoglobin flux (Correct answer)
Correct answer: Muscle oxygen saturation (SmO2) and oxygenated hemoglobin flux
NIRS uses near-infrared light absorption by hemoglobin to continuously measure the balance of oxygen delivery and consumption within the underlying muscle.
Question 6: The TRIMP (Training Impulse) method quantifies cardiovascular training load by incorporating:
- Sprint distance and total GPS-derived distance run
- Heart rate response relative to max and session duration (Correct answer)
- Subjective RPE and total session volume (sets × reps)
- Bar velocity and tonnage from VBT devices
Correct answer: Heart rate response relative to max and session duration
TRIMP (Banister, 1991) integrates exercise heart rate relative to maximum heart rate over time, weighting higher-intensity work more heavily to estimate cardiac training stress.
Question 7: A consistent pattern of elevated resting heart rate combined with suppressed HRV measured over several consecutive mornings most likely indicates:
- Positive aerobic adaptation and improved cardiovascular efficiency
- A successful taper response ahead of a competition peak
- Accumulated fatigue consistent with non-functional overreaching (Correct answer)
- Enhanced muscle glycogen storage from carbohydrate loading
Correct answer: Accumulated fatigue consistent with non-functional overreaching
Elevated resting HR with depressed HRV across multiple days signals sympathetic dominance, commonly associated with excessive training load and insufficient recovery.
CSCS Technology & Digital Tools 4
Heart rate variability (HRV) monitoring in athletes is primarily used to assess: