Pérez Ruiz, MargaritaRuiz, Jonatan R.Fernández del Valle, MaríaNogales-Gadea, GiselaAndreu, Antoni L.Arenas, JoaquínLucía Mulas, Alejandro2013-11-272013-11-272009Pérez-Ruiz, M., Ruiz, J. R., Fernández, V., Nogales-Gadea, G., Andreu, A. L., Arenas, J., & Lucía-Mulas, A. (2009). The second wind phenomenon in very young McArdle’s patients. Neuromuscular Disorders, 19(6), 403-405.18732364http://hdl.handle.net/11268/125We investigated the phenomenon of second wind in four patients with McArdle's disease: a brother and sister (aged 4 and 12 years respectively) and two unrelated patients, a boy of 14 and a 17-year-old girl. We also studied the siblings' healthy 6-year-old sister. Each patient performed a 15-min exercise test at a constant workload and a subsequent graded exercise test until exhaustion. Overall the healthy girl and the youngest McArdle's patient, the 4-year-old boy, did not show a second wind phenomenon. Further, the peak cardio-respiratory capacity of the young McArdle's boy was normal for his age (32.3 mL 02/kg/min) and he did not report any function limitations during physical education classes.engExercise/*PhysiologyGlycogen Storage Disease Type V/*PhysiopathologyChildChild, PreschoolDiagnosis, DifferentialExercise TestFemaleGlycogen Storage Disease Type V/DiagnosisHeart RateHumansMalePulmonary Ventilationjournal article10.1016/j.nmd.2009.04.010restricted accessEnfermedad nutricionalDeporteTratamiento médico