2016, Volume 8, Issue 4

Effects of semi-custom and off-the-shelf orthoses on Achilles tendon and patellofemoral kinetics in female runners



Jonathan Sinclair1, Jim D. Richards2, Hannah Shore1

1Centre for Applied Sport & Exercise Sciences, School of Sport & Wellbeing, College of Health & Wellbeing, University of Central Lancashire
2Allied Health Research Unit, School of Health, College of Health & Wellbeing, University of Central Lancashire


Author for correspondence: Jonathan Sinclair; Centre for Applied Sport & Exercise Sciences, School of Sport & Wellbeing, College of Health & Wellbeing, University of Central Lancashire; email: jksinclair[at]uclan.ac.uk


Full text

Abstract

Background: The aim of the current investigation was to examine the effects of semi-custom and off-the-shelf orthotics on the loads experienced by the patellofemoral joint and the Achilles tendon in female runners.

Material and Methods: Twelve female recreational runners ran at 4.0 m.s‑1 whilst wearing no orthotics, semi-custom orthotics and off-the-shelf orthotics. Kinetics and kinematics of running were obtained via a force platform and a motion capture system. Differences between orthotic conditions werecontrasted using one-way repeated measures ANOVA.

Results: The results showed thatboth patellofemoral contact force and pressure were significantly lower in the no-orthotic (force = 3.21 B.W & pressure = 8.18 MPa) condition in comparison to the off-the-shelf (force = 3.60 MPa & pressure = 9.07 B.W) and semi-custom orthoses (force = 3.69 B.W & pressure = 9.30 MPa).

Conclusions: The current investigation indicates that foot orthoses such as those examined in the current investigation may place female runners at increased risk from patellofemoral disorders, although future prospective research is required before this can be substantiated.


Key words: biomechanics, Achilles tendon, patellofemoral, orthoses


Cite this article as:

AMA:

Sinclair J, Richards J, Shore H. Effects of semi-custom and off-the-shelf orthoses on Achilles tendon and patellofemoral kinetics in female runners. Balt J Health Phys Activ. 2016;8(4)

APA:

Sinclair, J., Richards, J.D., & Shore, H. (2016). Effects of semi-custom and off-the-shelf orthoses on Achilles tendon and patellofemoral kinetics in female runners. Balt J Health Phys Activ, 8(4)

Chicago:

Sinclair, Jonathan, Richards Jim D., Shore Hannah. 2016. "Effects of semi-custom and off-the-shelf orthoses on Achilles tendon and patellofemoral kinetics in female runners". Balt J Health Phys Activ 8 (4)

Harvard:

Sinclair, J., Richards, J.D., and Shore, H. (2016). Effects of semi-custom and off-the-shelf orthoses on Achilles tendon and patellofemoral kinetics in female runners. Balt J Health Phys Activ, 8(4)

MLA:

Shore, Hannah et al. "Effects of semi-custom and off-the-shelf orthoses on Achilles tendon and patellofemoral kinetics in female runners." Balt J Health Phys Activ, vol. 8, no. 4, 2016

Vancouver:

Sinclair J, Richards JD, Shore H. Effects of semi-custom and off-the-shelf orthoses on Achilles tendon and patellofemoral kinetics in female runners. Balt J Health Phys Activ 2016; 8(4)