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Table 2 Serum concentrations of E2, P4, DHEA-s, T and free T in the follicular phase (FP, around day 11) and the luteal phase (LP, around day 25) before and after three months of follicular phase-based or luteal phase-based strength training (N = 20)

From: Effects of follicular versus luteal phase-based strength training in young women

  Pre-training Post-training
FP LP FP LP
E2 (pg/ml) 124 ± 104 114 ± 71 92 ± 70 142 ± 41†
P4 (ng/ml) 0.82 ± 0.53 5.66 ± 3.93† 0.78 ± 0.50 8.36 ± 3.33†*
DHEA-s (μg/ml) 2.65 ± 1.13 2.52 ± 0.83 2.55 ± 0.73 2.58 ± 0.73
T (ng/ml) 0.44 ± 0.20 0.35 ± 0.18† 0.37 ± 0.14* 0.37 ± 0.15
Free T (pg/ml) 2.57 ± 0.86 1.94 ± 0.62† 2.14 ± 0.62* 2.06 ± 0.60
  1. E2: estradiol, P4: progesterone, T: testosterone, pre/post-training: before/after three months of strength training.
  2. FP: follicular phase, LP luteal phase, *: P <0.05 post training vs. pre training, †: P <0.05 LP vs. FP.