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Table 1 Average serum concentrations of testosterone, human growth hormone (hGh), and insulin-like growth factor-1 (IGF-1)

From: The effects of six weeks of supplementation with multi-ingredient performance supplements and resistance training on anabolic hormones, body composition, strength, and power in resistance-trained men

Variable

Group

PRE

POST

time

group × time

Testosterone

MIPS (n = 11)

40.2 ± 12.9

58.3 ± 11.5

p = 0.035

p = 0.881

(ng/mL)

PLA (n = 7)

38.9 ± 10.3

54.9 ± 12.4

hGH

MIPS (n = 12)

113.3 ± 21.0

119.9 ± 35.3

p = 0.510

p = 0.376

(pg/mL)

PLA (n = 7)

71.9 ± 20.6

64.5 ± 13.1

IGF −1

MIPS (n = 11)

173.2 ± 7.5

181.9 ± 10.5

p = 0.768

p = 0.283

(ng/mL)

PLA (n = 10)

152.9 ± 14.9

147.5 ± 28.4

  
  1. A main time effect was observed for both groups to improve serum testosterone, with no difference between groups. Values are presented as means ± SE. Sample size between each analyte is slightly different due technical difficulties with certain samples.