Botox for the Treatment of Chronic Exertional Compartment Syndrome

Inclusion Criteria: * Willing to provide written informed consent * Willing to comply with all study procedures and be available for the duration of the study including reliable use of telephone for communication * Male or female, at least 18 years of age * Documented diagnosis of CECS * Females of childbearing potential must have a negative urine pregnancy test prior to enrollment and agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to enrollment and for the duration of study participation. A female of child-bearing potential is any woman (regardless of sexual orientation, having undergone a tubal ligation, or remaining celibate by choice) who meets the following criteria: Has not undergone a hysterectomy or bilateral oophorectomy; or has not been naturally postmenopausal for at least 12 consecutive months (i.e., has had menses at any time in the preceding 12 consecutive months). * Be involved, either competitively or non-competitively, in an activity requiring significant running as determined by the PI Exclusion Criteria: * History of hypersensitivity or allergy to any of the study drugs or drugs of similar chemical classes * Known neuromuscular disease * Known pulmonary disease including but not limited to asthma, pneumonia, or upper respiratory tract infection * Dysphagia * Known cardiac disease including but not limited to congestive heart failure, arrhythmia, or history of myocardial infarction * History of lower extremity fasciotomy * Enrolled in another clinical trial or has used any investigational drugs, biologics, or devices within 30 days prior to enrollment * Currently or have taken in the past medications that affect neuromuscular function: aminoglycosides, muscle relaxants, or other botulinum neurotoxin agents * Women who are pregnant or breast-feeding * Vulnerable populations * Not suitable for study participation due to other reasons at the discretion of the investigator