2014
DOI: 10.4236/jbise.2014.77043
|View full text |Cite
|
Sign up to set email alerts
|

Experimental Validation of Subject-Specific Dynamics Model for Predicting Impact Force in Sideways Fall

Abstract: Sideways fall has been identified as the most critical situation for the elderly to develop hip fractures. The impact force onto the greater trochanter is the key factor for predicting fracture risk. For the elderly, the impact force can only be determined by dynamics simulations, and the dynamics model must be first validated by experiments before it can be applied in clinic. In this study, subject-specific whole-body dynamics models constructed from dual energy X-ray absorptiometry (DXA) images of the subjec… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
2
1

Citation Types

0
23
0

Year Published

2015
2015
2019
2019

Publication Types

Select...
4
2

Relationship

1
5

Authors

Journals

citations
Cited by 19 publications
(23 citation statements)
references
References 19 publications
0
23
0
Order By: Relevance
“…In this method, the correlation between the pixel intensity in the DXA image and the tissue mass density was used to determine the pixel mass [61] and subsequently the required parameters. The obtained parameters were then used to construct a three-link human-body dynamics model, developed by the authors and validated by experiments [59,62], in order to simulate a lateral fall from standing height. The three links represent respectively the shank, the thigh, and the trunk.…”
Section: Calculation Of Impact Force and Hip Fracture Riskmentioning
confidence: 99%
“…In this method, the correlation between the pixel intensity in the DXA image and the tissue mass density was used to determine the pixel mass [61] and subsequently the required parameters. The obtained parameters were then used to construct a three-link human-body dynamics model, developed by the authors and validated by experiments [59,62], in order to simulate a lateral fall from standing height. The three links represent respectively the shank, the thigh, and the trunk.…”
Section: Calculation Of Impact Force and Hip Fracture Riskmentioning
confidence: 99%
“…However, a larger body weight is also associated with a thicker soft tissue over the hip, which is able to attenuate the impact energy and thus reduce the impact force to some extent [161,162]. The resulting impact force is dependent on the dominance of the above two effects [8,113,114]. Body height is also associated with the initial potential energy.…”
Section: Weight and Heightmentioning
confidence: 94%
“…1 Load-strength ratio, major and sublevel biomechanical variables before touching the ground may change the magnitude of impact force [8,112,116]. A more accurate way is to determine the impact force by fall simulation using a dynamics model constructed from the subject's whole body medical image [8,111,113,114]. It should be realized that assumptions, for example, the fall type and direction, have been introduced in both fall tests and dynamics simulations, which may be very different from those in a real-world fall.…”
Section: Biomechanical Variables Determining Hip Fracture Riskmentioning
confidence: 99%
See 2 more Smart Citations