Symptom Information: Sort according to HPO 

1
(HPO:0003236) Elevated serum creatine phosphokinase 214 / 7739
2
(HPO:0003710) Exercise-induced muscle cramps 11 / 7739
3
(HPO:0008967) Exercise-induced muscle stiffness 6 / 7739
4
(HPO:0009020) Exercise-induced muscle fatigue 4 / 7739
5
(OMIM) Symptoms may be induced by heat 1 / 7739
6
(OMIM) Decreased lactate clearance from muscle after exercise (reported in 1 patient) 1 / 7739
7
(MedDRA:10004804) Biopsy muscle normal 3 / 7739
8
(OMIM) Normal EMG 2 / 7739
9
(OMIM) Decreased erythrocyte lactate clearance (transport), 40 to 50% of normal values 1 / 7739