About the Authors

Robert P. Lamberts

Affiliations Division of Orthopaedic Surgery, Department of Surgical Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa, Division of Exercise Science and Sports Medicine, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Newlands, South Africa

Marlette Burger

Affiliation Division of Physiotherapy, Department of Interdisciplinary Health Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa

Jacques du Toit

Affiliation Division of Orthopaedic Surgery, Department of Surgical Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa

Nelleke G. Langerak

nellekelangerak@hotmail.com

Affiliations Division of Physiotherapy, Department of Interdisciplinary Health Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa, Division of Neurosurgery, Department of Surgery, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceptualization: NL MB RL. Data curation: NL RL MB. Formal analysis: NL RL MB JT. Funding acquisition: NL. Investigation: NL RL MB JT. Methodology: NL MB RL. Project administration: RL. Resources: NL RL MB JT. Supervision: NL. Validation: NL RL MB JT. Visualization: NL RL. Writing – original draft: NL RL. Writing – review & editing: NL RL MB JT.