Symptom Information: Sort according to HPO 

1
(HPO:0003236) Elevated serum creatine phosphokinase 214 / 7739
2
(HPO:0003701) Proximal muscle weakness 105 / 7739
3
(HPO:0003738) Exercise-induced myalgia 19 / 7739
4
(OMIM) Severe myalgias after exercise 1 / 7739
5
(OMIM) Mild proximal weakness 1 / 7739
6
(OMIM) Large areas of about one-third of type II muscle fibers devoid of mitochondria with remaining mitochondria unusually large 1 / 7739