TABLE 2.

Lipid droplet cross‐sectional area in type I and type II fibers per unit cell area (LD‐CSA) in sections of biopsies obtained from muscles of individuals from athlete, control and IGR cohorts.

	Type I fibers LD‐CSA per unit CA (AU)	Type II fibers LD‐CSA per unit CA (AU)
Athletes (n = 7)	25.1 ± 1.2 #	12.6 ± 1.5
Control (n = 8)	21.3 ± 8.2	11.6 ± 1.8
IGR (n = 7)	26.0 ± 7.4	15.1 ± 1.8*

Note: LD‐CSA values were calculated as the summation of the product of the multiplication of the number of lipid droplets of different sizes by the area computed for each diameter in the ranges shown in Figure 1. Values are expressed in arbitrary units (AU) and are means ± SEM for the number of individuals sampled. The total LD‐CSA is given together with the CSA for LD or three diameter ranges, namely, <0.2, 0.2–0.6 and >0.6 μm. Statistical evaluation was by Student's t‐test.

Abbreviations: CA, cell area; IGR, impaired glucose regulation.

^# Significantly different between type I and type II fibers for athletes (p < .05).

^*Significantly different between type II fibers in IGR vs controls and athletes (p < .05).