Resting Level of Insulin-Like Growth Factor-1 Is Not at Play in Cardiac Enlargement in Endurance-Trained Adolescents
Table 2
Resting levels of circulating hormones in the active group vs controls and at subgroups of boys (b) and girls (g).
Active group (n = 24, 14 boys and 10 girls)
Control group (n = 24, 14 boys and 10 girls)
value
Cortisol (nmol/L)
136
120
0.421
b
125 (40–277)
120 (33–286)
0.541
g
149 (48–305)
108 (37–330)
0.971
IGF-1 (ng/mL)
25
23
0.288
b
27 (11–40)
25 (14–48)
0.427
g
21 (11–43)
19 (4–29)
0.529
IGF-2 (ng/mL)
1.0
0.0
0.134
b
1.1 (0.0–2.8)
0.0 (0.0–8.0)
0.454
g
0.5 (0.0–5.0)
0.0 (0.0–3.0)
0.315
FSH (mLU/mL)
7.4
5.7
0.177
b
6.3 (1.8–12.1)
4.1 (1.4–9.1)
0.137
g
7.8 (3.6–17.9)
6.3 (3.8–11.9)
0.684
GH (ng/mL)
1.4
2.0
0.327
b
1.5 (0.1–26.1)
3.2 (0.2–28.6)
0.571
g
1.1 (0.6–6.4)
1.8 (0.5–13.8)
0.315
LH (mLU/mL)
2.1
1.4
0.095
b
2.2 (0.7–11.5)
0.7 (0.0–4.6)
0.031
g
2.1 (1.2–28.0)
2.0 (0.6–6.1)
0.796
Prolactin (ng/mL)
1.5
0.9
0.049
b
1.6 (0.3–4.8)
0.9 (0.0–4.3)
0.039
g
1.2 (0.3–5.5)
0.9 (0.0–2.8)
0.481
TSH (μLU/mL)
2.6
2.8
0.877
b
2.7 (1.1–10.6)
2.8 (1.2–12.0)
0.910
g
2.6 (0.8–11.0)
2.5 (1.3–9.8)
0.796
Data are presented as median with range (min-max). Bold styling denotes statistical significance. IGF, insulin-like growth factor; FSH, follicle-stimulating hormone; GH, growth hormone; LH, luteinizing hormone; TSH, thyroid-stimulating hormone.