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Average FRI at the three critical cross-sections of 60 right femurs during the sideways fall.
| FRI | |||
|---|---|---|---|
| Smallest femoral neck cross-section | Intertrochanteric cross-section | Subtrochanteric cross-section | |
| Range | 0.1725–3.0448 | 0.1226–1.534 | 0.0004–0.0812 |
| Average | 0.6944 | 0.5245 | 0.0091 |
