FIGURE 2.

Skeletal muscle ACE2 protein expression and cardiorespiratory fitness. Each straight line represents the linear relationship between the logarithm of the level of ACE2 expression in the human vastus lateralis skeletal muscle and maximal oxygen uptake (VO₂max, expressed as mL of O₂ per kg of lean mass of the lower extremities (LLM)), for the percentages of body fat indicated. N = 215 (146 men and 69 women). This graph was created using the regression model reported in Table 2