Table 3.
Summary of training studies per hormone (GH, IGF-I, testosterone, SHBG, and cortisol) reported separately for sex, age, and maturity
| Hormone | Sex | Age | Maturity | ||||
|---|---|---|---|---|---|---|---|
| Male | Female | Children (< 12 years) | Adolescents (> 12 years) | Prepubertals | Pubertals | ||
| GH | Total number of studies | 3 | 1 | 1 | 3 | 1 | 3 |
| Resistance Training (studies) | 0 | 0 | 0 | 0 | 0 | 0 | |
| Endurance training (studies) | 3 | 1 | 1 | 3 | 1 | 3 | |
| Age (min–max) | 10–16 year | 15–17 year | 10 year | 13–17 year | 10 year | 13–17 year | |
| Maturity reported (studies) | 2/3 | 1/1 | 1/1 | 2/3 | |||
| IGF-I | Total number of studies | 2 | 2 | 2 | 2 | 2 | 2 |
| Resistance Training (studies) | 0 | 0 | 0 | 0 | 0 | 0 | |
| Endurance training (studies) | 2 | 2 | 2 | 2 | 2 | 2 | |
| Age (min–max) | 9–16 year | 9–17 year | 9–11 year | 15–17 year | 9–11 year | 15–17 year | |
| Maturity reported (studies) | 2/2 | 2/2 | 2/2 | 2/2 | |||
| Testosterone | Total number of studies | 7 | 0 | 4* | 3 | 5* | 3 |
| Resistance Training (studies) | 4 | 0 | 2 | 2 | 2** | 2 | |
| Endurance training (studies) | 3 | 0 | 2 | 2* | 3 | 1 | |
| Age (min–max) | 10–17 year | 0 | 11–12 year | 13–17 year | 9–11 year | 12–17 year | |
| Maturity reported (studies) | 6/7 | 0 | 4/4 | 2/3 | |||
| SHBG | Total number of studies | 3 | 0 | 2 | 1 | 2 | 1 |
| Resistance Training (studies) | 2 | 0 | 0 | 1 | 0 | 1 | |
| Endurance training (studies) | 1 | 0 | 2 | 0 | 2 | 0 | |
| Age (min–max) | 10–16 year | 0 | 9–12 year | 14–16 year | 9–12 year | 14–16 year | |
| Maturity reported (studies) | 3/3 | 0 | 2/2 | 1/1 | |||
| Cortisol | Total number of studies | 5 | 0 | 1 | 4 | 1 | 1 |
| Resistance Training (studies) | 3 | 0 | 0 | 3 | 0 | 1 | |
| Endurance training (studies) | 2 | 0 | 0 | 1 | 1 | 0 | |
| Age (min–max) | 9–17 years | 0 | 9–10 years | 14–17 years | 9–10 years | 14–15 years | |
| Maturity reported (studies) | 2/5 | 0 | 1/1 | ¼ | |||