Skip to main content

Table 3 Serum IGF-1 and insulin levels for WP and CHO.

From: Ingestion of 10 grams of whey protein prior to a single bout of resistance exercise does not augment Akt/mTOR pathway signaling compared to carbohydrate

Variable Time Point WP CHO p-value
IGF-1 (ng/ml) Baseline 0.46 ± 0.4 0.39 ± 0.3 Supplement (S) = 0.64
  30 min post-ingestion 0.47 ± 0.4 0.45 ± 0.4 Test (T) = 0.34
  15 min post-exercise 0.44 ± 0.5 0.39 ± 0.3 S × T = 0.89
  120 min post-exercise 0.50 ± 0.4 0.44 ± 0.3  
Insulin (μIU/ml) Baseline 12.83 ± 6.1 14.05 ± 7.1 Supplement (S) = 0.95
  30 min post-ingestion 51.90 ± 25.3 50.59 ± 34.9 Test (T) = 0.001†¥#
  15 min post-exercise 23.60 ± 14.1 14.62 ± 8.9 S × T = 0.76
  120 min post-exercise 10.08 ± 6.5 9.33 ± 5.5  
  1. Data are means ± standard deviations.
  2. † represents significant difference from baseline at 30 min post-ingestion.
  3. ¥ represents significant difference from baseline at 15 min post-exercise.
  4. # represents significant difference from baseline at 120 min post-exercise.