Sarabon, N., P. Polona, and S. Burggraf. “Proposal for Progressive Loading of the Hip Abductors under Mechanically Unstable Conditions: An Electromyography Study”. European Journal of Translational Myology, vol. 20, no. 4, Dec. 2010, pp. 187-92, doi:10.4081/ejtm.2010.1816.