How many push-ups can you do?

“Normal value” is the estimated median from the four formulas developed in the preceding analysis. These medians were modeled from study means and variability; they are not directly measured population medians or validated national norms.

The formula is rounded to the nearest whole repetition. Your difference uses that same rounded count. A positive result is green, a negative result is red, and an equal result is neutral. The comparison is not a percentile or a pass/fail grade.

*Male knee-supported estimates at ages 61–69 extrapolate the formula beyond the source study’s oldest age. Female toe-supported estimates use one group median for ages 18–24; they do not establish an age trend. At other ages, the calculator compares your result with this same 18–24-year group, not an estimated norm for your own age.

The original modeling interpolated means and variances between age groups and used a negative-binomial distribution to estimate medians. Payne SDs were reconstructed from rounded standard errors. Study populations and test protocols differ; toe and knee counts cannot be converted or directly compared using these references.