title: CrossFit®Instructor Demographics and Practice Trends.
abstract: CrossFit®is an increasingly popular exercise modality that uses high intensity power training. The literature to date regarding CrossFit®has focused on its benefits to VO2 Max, body composition and the motivational variables of participants of CrossFit®. A computerized survey was distributed to CrossFit®instructors using Survey Monkey®(Palo Alto, CA, USA). One hundred and ninety-three CrossFit®instructors responded to the survey. Of these 86.6% (155/179) reported being a certified CrossFit®instructor with 26.7% (48/180) having a bachelor's degree in an exercise-related field. Instructors with a CrossFit®certification have less bachelor's (P=0.04) or master's (P=0.0001) degrees compared to those without a CrossFit®certification, more utilization of Olympic weightlifting (P=0.03), one-on-one teaching (P=0.0001), 1-RM max on snatch (P=0.004), 1-RM on clean and jerk or hang clean (P=0.0003), kettlebell use (P=0.0001) and one-on-one training (P=0.0001). Instructors report differences in their education and differences in use of weightlifting platforms and various types of footwear. Non-certified instructors differ from CrossFit®certified instructors in regards to teaching of Olympic weightlifting and exercise programming.
authors.affiliation: Department of Orthopedic Surgery, Rhode Island Hospital , Providence, RI, USA.
authors.forename: Gregory R
authors.initials: GR
authors.lastname: Waryasz
authors.affiliation: Warren Alpert Medical School, Brown University , Providence, RI, USA.
authors.forename: Vladimir
authors.initials: V
authors.lastname: Suric
authors.affiliation: Department of Orthopedic Surgery, Rhode Island Hospital , Providence, RI, USA.
authors.forename: Alan H
authors.initials: AH
authors.lastname: Daniels
authors.affiliation: Department of Orthopedic Surgery, Rhode Island Hospital , Providence, RI, USA.
authors.forename: Joseph A
authors.initials: JA
authors.lastname: Gil
authors.affiliation: Department of Orthopedic Surgery, Rhode Island Hospital , Providence, RI, USA.
authors.forename: Craig P
authors.initials: CP
authors.lastname: Eberson
keywords: High intensity power training; Kettlebells; Olympic weightlifting; Stretching