Table 3

Short-term effect of exercise on mean phenylalanine and tyrosine concentrations and the phenylalanine: tyrosine concentration ratio in serum
Before exercise 60 min after exercise 120 min after exercise
Variable M SD M SD M SD F(2,6) p
Phe 1057 287 1058 291 1050 286 1.46 .30
Tyr 82 25 85 30 69 25 13.31 .01
[Phe]/[Tyr] 14 7 14 7 17 9 6.50 .03

Phe = phenylalanine; Tyr = tyrosine; [Phe]/[Tyr] = phenylalanine: tyrosine concentration ratio.

To evaluate the short-term effect of exercise on phenylalanine and tyrosine concentrations and the phenylalanine:tyrosine concentration ratio in serum repeated-measures MANOVA were performed with the within-subjects factor “time of measurement” (before the exercise, 60 min after the exercise, 120 min after the exercise).

Grünert et al.

Grünert et al. Nutrition Journal 2013 12:60   doi:10.1186/1475-2891-12-60

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