Table 1.
Clinical characteristics of amenorrheic athletes (AA), eumenorrheic athletes (EA) and non-athletes (NA).
Table 2.
Areal (DXA) and volumetric (HRpQCT) bone density measures, cortical microarchitectural parameters, and strength estimates (FEA) in amenorrheic athletes (AA), eumenorrheic athletes (EA) and non-athletes (NA).
Figure 1.
Irisin and FGF21 levels in athletes and non-athletes.
(A) Irisin and (B) FGF21 levels were lower in amenorrheic athletes (AA) compared to eumenorrheic athletes (EA) and non-athletes (NA) (ANOVA for three-group comparison for log converted values, followed by the Tukey Kramer test to compare any two groups). *, p<0.05 vs. EA and NA.
Table 3.
Associations of irisin (log converted values) with areal (DXA) and volumetric (HRpQCT) bone density measures, cortical microarchitectural parameters, and strength estimates (FEA) in all subjects (All), amenorrheic athletes (AA), eumenorrheic athletes (EA), all athletes (ATH) and all non-athletes (NA).
Table 4.
Associations of FGF-21 (log converted values) with areal (DXA) and volumetric (HRpQCT) bone density measures, cortical microarchitectural parameters, and strength estimates (FEA) in all subjects (All), amenorrheic athletes (AA), eumenorrheic athletes (EA), all athletes (ATH) and all non-athletes (NA).