Incongruence between Cardiorespiratory Fitness and Subjective Reports of Physical Activity in Multiple Sclerosis: A Focus on Sex Differences

Figure 2

Bland-Altman plots of measured and predicted cardiorespiratory fitness (V̇O_2max; mL · kg^-1·min^-1) in the validation group of participants (; 43 females, 14 males). Based on the regression equation V̇O_2max (mL · min^-1 · kg^-1) = (8.211 × sex (1 = F, 2 = M)) − (0.228 × age) − (0.247 × body mass) − (0.996 × EDSS) + (0.004 × MET − minutes of MVPA) + 44.737, obtained from the derivation group of participants (; 34 females, 16 males). The -axis represents the average of measured and predicted V̇O_2max values, and the -axis represents the difference between measured and predicted values. Dashed lines represent the mean and ±2 standard deviations (SD) from the mean. (a) and (b) demonstrate the prediction equation in females and males, respectively.

(a)

(b)