picture from here
Their findings: 28% of Marvel women are underweight. On average, female comic characters had BMI's on the low end of average. "This result is surprising, " the authors wrote, "considering that many of the women sampled are martial artists or extremely capable physically and should, if anything, have a BMI that indicates a higher body fat level than is actually present." Clearly, it takes a little more than a model's body mass to run at supersonic speeds or jump a 10 story building from a standstill.
The average Marvel female is approaching underweight despite a presumably active lifestyle. This may corroborate sociological and literary observations that in the Marvel Universe, women must fulfil criteria for being attractive by Western standards before fulfilling the criteria of biological realism.