title: Material properties of Thera-Band Tubing.
abstract: OBJECTIVE
  Thera-Band Tubing has been used in rehabilitation to provide resistance for exercise and splinting. However, the forces required to stretch the tubing have not been thoroughly quantified. Therefore, the therapist cannot assess, with certainty, how much force is applied when using a given length and type of Thera-Band Tubing. The purpose of this study was to quantify the material properties of Thera-Band Tubing.
  
  
  METHODS
  Force versus percentage of strain for all types of Thera-Band Tubing was measured during elongation in a mechanical testing machine.
  
  
  RESULTS
  The material is very compliant and displays nonlinear behavior in the initial stretching phase and linear behavior after 50% elongation.
  
  
  CONCLUSIONS
  From the data obtained in this project, plots that can provide the therapist with information about the forces needed for exercises with Thera-Band Tubing were generated. These data should allow therapists to make better choices about which size of tubing to use for each patient.
authors.affiliation: Department of Orthopaedic Surgery and Rehabilitation, The University of Texas Medical Branch at Galveston, 301 University Blvd, Galveston, TX 77555-0892, USA. Rita.Patterson@utmb.edu
authors.forename: R M
authors.initials: RM
authors.lastname: Patterson
authors.forename: C W
authors.initials: CW
authors.lastname: Stegink Jansen
authors.forename: H A
authors.initials: HA
authors.lastname: Hogan
authors.forename: M D
authors.initials: MD
authors.lastname: Nassif
mesh_terms: D002138:Calibration; D003187:Compliance; D003663:Decision Trees; D004867:Equipment Design; D005081:Exercise Therapy / Q000295:instrumentation*; D006801:Humans; D008422:Materials Testing; D017711:Nonlinear Dynamics; D013314:Stress, Mechanical