Table 6. Ammonia levels in baseline and final CPET.

	AUC 6 h				AUC 2 h
	Baseline	Final	Δ (Final—Baseline)	aP-value	Baseline	Final	Δ (Final—Baseline)	aP-Value
Exercise group	430±180	432±206	3±91	0.878	317±135	315±161	−2±83	0.878
Control group	438±203	487±196	49±264	0.530	320±152	361±157	41±222	0.530

AUC, areas under the curve; CPET, cardiopulmonary exercise test; PEP, physical exercise program.

^aPaired t-test. n=25, 13 PEP and 12 control.

Mean±s.d.. Final values were imputed as no change for the 2 patients in the PEP group lost to follow up.