Name a common limitation when applying normative data to individual athletes.

• A. Norms apply equally to everyone.
• B. Individual differences (training background, genetics) may cause substantial deviation despite good performance.
• C. Norms are perfect predictors.
• D. Norms change daily.

Answer: (B)

Normative data serve as population benchmarks, giving a context to where an individual stands relative to a larger group. But individuals differ in training background, genetics, prior adaptations, injuries, nutrition, sleep, and other factors that shape performance. Those differences can cause an athlete’s true performance or response to training to deviate substantially from the average, even if they are doing well. So, norms are useful guides, not precise predictors for a single person.

That’s why the limitation is the variability among individuals due to factors like training history and genetics. Norms aren’t universal truths for every athlete, they’re reference ranges built from group data. They aren’t meant to be interpreted as perfect predictions or updated minute by minute.