Inclusion Criteria:  Females between the ages of 18 to 55 Diagnosed with Multiple Sclerosis Expanded Disability Status Score of 0 to 6.5 Able to walk 10 meters without assistance Are willing to come in for all 29 testing visits over 14 weeks  Exclusion Criteria:  No other known cardiovascular, pulmonary, metabolic, muscular, and/or coronary heart disease Multiple Sclerosis relapse in the past 30 days Are not currently undergoing a rehabilitation protocol Are not currently seeking medical care for a chronic condition that could limit exercise capacity other than multiple sclerosis Are not currently pregnant