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Table 4 Resting levels after overload training (OTP or CSP)

From: Hormonal aspects of overtraining syndrome: a systematic review

Parameter Quantity of studies Normal response Blunted response Exacerbated response
Cortisol 16 (66.7%) 12 (75.0%) 4 (25.0%)  
Total T 15 (62.5%) 10 (66.7%) 4 (26.7%) 1 (6.7%)
T/C 10 (41.7%) 4 (40.0%) 5 (50.0%) 1 (10.0%)
Plasma catecholamines 6 (25.0%) 4 (66.7%) 2 (33.3%) -
Insulin 5 (20.8%) 4 (80.0%) 1 (20.0%) -
LH 5 (20.8%) 4 (80.0%) 1 (20.0%) -
FSH 4 (16.7%) 3 (75.0%) 1 (25.0%) -
GH 4 (16.7%) 2 (50.0%) 1 (25.0%) 1 (25.0%)
IGF-1 4 (16.7%) 3 (75.0%) 1 (25.0%) -
NUC 4 (16.7%) 1 (25.0%) 1 (25.0%) 2 (50.0%)
Free T 3 (12.5%) 1 (33.3%) 1 (33.3%) 1 (33.3%)
ACTH 3 (12.5%) 3 (100.0%) - -
Aldosterone 3 (12.5%) 1 (33.3%) 1 (33.3%) 1 (33.3%)
T4 2 (8.3%) 2 (100.0%) - -
T3 2 (8.3%) 2 (100.0%) - -
TSH 2 (8.3%) 2 (100.0%) - -
Prolactin 2 (8.3%) 2 (100.0%) - -
Salivary C 2 (8.3%) - 2 (100.0%) -
Salivary T 2 (8.3%) 1 (50.0%) 1 (50.0%) -
Peptide C 2 (8.3%) 2 - -
IGFBP-3 1 1 - -
IGF-1/IGFBP-3 1 1 - -
DHEA-S 1 1 - -
Peptide F 1 1 - -
Fertility 1 - 1 -
SHBG 1 1 - -
Beta-2 muscle receptors 1 - 1 -
  1. NUC Nocturnal urinary catecholamines, T/C testosterone/cortisol ratio, T/SHBG testosterone/sex hormone binding globulin, T3 thyronine, T4 thyroxine, salivary C salivary cortisol, salivary T salivary testosterone, 4 PM salivary C salivary cortisol collcted at 4 PM, IGF-1/IGFBP-3 IGF-1/IGFBP3 ratio, fertility evaluation by semen analysis