Smart sensors track hidden heart risks in duchenne MD

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

CASE, DMD inclusion criteria: * Male * Age ≥10years * Clinical phenotype of DMD confirmed with muscle biopsy or genotype. * Informed consent for individuals ≥18 years * Parent/guardian informed consent and child assent for individuals \< 18 years CASE, DMD exclusion criteria: * Refusal to participate. * Diagnosis of diabetes prior to the study and/or taking insulin or other anti-diabetic drug therapy in \< 4 weeks prior to treatment * Use of a pacemaker, Implantable cardioverter-defibrillator (ICD), or other implanted device * Unable to comply with study procedures, in the opinion of the investigator. CONTROL inclusion criteria: * Male * Age ≥10years * Informed consent for individuals ≥18 years * Parent/guardian informed consent and child assent for individuals \< 18 years * BMI matched by Centers for Disease Control and Prevention (CDC) category (underweight, normal, overweight, obese) to cases. * Self-reported race/ethnicity matched to cases. * No known evidence of diabetes, impaired fasting glucose, or impaired glucose tolerance: * For individuals (all ≥10 years) of age with obesity, we anticipate that they will have hemoglobin A1c (HbA1c) screening based on American Academy of Pediatrics (AAP) recommendations. * Participants will be included if they have a normal HbA1c (\< 5.7%) or if they have an elevated HbA1c (5.7-6.4%) with no evidence of impaired fasting glucose or impaired glucose tolerance on clinically obtained oral glucose tolerance tests (OGTT) (e.g., fasting glucose \<100mg/dL and 2-hour glucose \<140mg/dL). CONTROL, exclusion criteria: * Refusal to participate. * Diagnosis of diabetes prior to the study and/or taking insulin or other anti-diabetic drug therapy in \< 4 weeks prior to treatment * Use of a pacemaker, Implantable cardioverter-defibrillator (ICD), or other implanted device * Unable to comply with study procedures, in the opinion of the investigator. * Diagnosis of DMD or Becker muscular dystrophy