In vivo strains at the middle and distal thirds of the tibia during exertional activities

There is a known variance in the incidence and anatomical site of tibial stress fractures among infantry recruits and athletes who train according to established uniform training programs. To better understand the biomechanical basis for this variance, we conducted in vivo axial strain measurements...

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Bibliographic Details
Published in:Bone Reports 2022-06, Vol.16, p.101170-101170, Article 101170
Main Authors: Milgrom, Charles, Voloshin, Arkady, Novack, Lena, Milgrom, Yael, Ekenman, Ingrid, Finestone, Aharon S.
Format: Article
Language:English
Subjects:
Bone strains
Exertional activities
Full Length
In vivo
Tibia
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Summary:There is a known variance in the incidence and anatomical site of tibial stress fractures among infantry recruits and athletes who train according to established uniform training programs. To better understand the biomechanical basis for this variance, we conducted in vivo axial strain measurements using instrumented bone staples affixed in the medial cortex, aligned along the long axis of the tibia at the level of the mid and distal third of the bone in four male subjects. Strain measurements were made during treadmill walking, treadmill running, drop jumps from a 45 cm height onto a force plate and serial vertical jumps on a force plate. Significance levels for the main effects of location, type of activity and their interaction were determined by quasi-parametric methodologies. Compared to walking, running and vertical jumping peak axial tensile strain (με) was 1.94 (p = 0.009) and 3.92 times (p 
ISSN:2352-1872
2352-1872
DOI:10.1016/j.bonr.2022.101170