Moran et al identified risk factors for stress fractures in young female military recruits during basic training. These can help to identify a recruit who may benefit from interventions to reduce stress fractures. The authors are from multiple institutions in Israel.


The precise stress fractures were not specified but most presumably would be in the lower extremities.



(1) body mass index in kg per square meter

(2) height in cm

(3) subjective sense of burnout on scale from 1 to 7 (in the implementation a VAS scale from 0 to 10 will be scaled appropriately)

(4) serum iron in µg/dL

(5) serum ferritin in ng/mL (or µg/L)


X =

= (0.079 * (height in cm)) - (0.105 * (body mass index)) + (0.464 * (burnout score)) - (0.014 * (serum iron)) + (0.035 * (serum ferritin)) - 13.98


probability of stress fracture =

= 1 / (1 + EXP((-1) * X))


The recruit at greatest risk is one who is tall, lean, iron deficient and burned out.


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