In the horse , infection and intense exercise have also been shown to significantly decrease plasma glutamine concentrations , but little is known on how best to supplement.
This study examined the relationship between muscle glutamine , muscle glycogen , and plasma glutamine concentrations over 3 d of high-intensity exercise during which dietary carbohydrate (CHO) intake varied.
The initial velocity of the reaction catalysed by rabbit muscle pyruvate kinase was studied as a function of the concentrations of the modifiers phenylalanine and fructose 1,6-bisphosphate under conditions where the relationships between the initial velocities and the concentrations of substrates are non-hyperbolic.