Inclusion criteria:
- individuals early post-stroke (<15-30 days)
 - first ever stroke
 - unilateral hemiparesis
 - currently receiving inpatient rehabilitation
 - ability to follow 1-step commands
 - provision of informed consent
 - medical clearance from the rehabilitation physician to participate. \
 
Exclusion criteria:
- uncontrolled cardiovascular, metabolic or respiratory disease that limits exercise participation (e.g., congestive heart failure, resting blood pressure > 200/110 mmHg, uncontrolled diabetes, end-stage renal disease)
 - absolute criteria for termination of exercise testing during initial and repeated ECG testing during graded exercise testing using ACSM guidelines .
 - other orthopedic or neurological disorder that limited walking prior to stroke