"Over 90% of hip fractures are due to falls . Laboratory measures have shown that wearable hip protectors reduce impact forces to the proximal femur during a simulated sideways fall on the hip [2, 3]. However, clinical evidence suggests that hip fractures still occur when hip protectors are worn . Furthermore, while falls in real life result in a variety of impact configurations, biomechanical tests to date have focused only on lateral impact to the pelvis. In the current study, we examined how the force reduction provided by wearable hip protectors is affected by pelvis impact configuration during simulated sideways falls."
Choi, W.J., & Robinovitch, S.N. (2015). 201BF--Influence Of pelvis impact angle during a fall: On the protective benefit of hip protectors. American Society of Biomechanics 39th Annual Meeting Abstracts. Retrieved from http://archive.asbweb.org/conferences/2015/abstracts/201BF--Influence%20Of%20Pelvis%20Impact%20Angle%20During%20A%20Fall%20On%20The%20Protective%20Benefit%20Of%20Hip%20Protectors--(Choi).pdf
American Society of Biomechanics