Medium-chain acyl-CoA dehydrogenase deficiency (MCADD) is a rare genetic disorder affecting the body's ability to break down certain fats (β-oxidation) for energy, leading to symptoms like hypoketotic hypoglycaemia, jaundice, cardiomyopathy and seizures. responsible for the dehydrogenation step of fatty acids with chain lengths between 6 and 12 carbons as they undergo beta-oxidation in the mitochondria. Deficiency in MCAD can result in energy deficiency, the accumulation of acylcarnitine's and low serum carnitine concentrations. The primary objective of the pilot study is to analyse the effects of high-intensity exercise (cardiopulmonary exercise testing (CPET) \& high intensity circuit exercises ) on metabolic parameters and safety. This research is a pilot study comparing four patients with MCADD to four control subjects with the same characteristics. Blood samples are collected for analysis of substrate utilization.
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glucose
Timeframe: From start of exercise until 1.5 hours post-exercise.