What is the Influence of new Military Athletic Footwear on the Kinetics & Kinematics of Running in Relation to Army Boots?

Research Paper Title

Influence of new military athletic footwear on the kinetics and kinematics of running in relation to army boots.

Background

Musculoskeletal (MSK) injuries in the lower extremities are common in military recruits. Army boots have frequently been cited as a potential mechanism behind these high injury rates. In response to this, the British Army introduced new footwear models, the PT-03 (cross-trainer) and PT1000 (running shoes), which are issued to each new recruit in an attempt to reduce the incidence of these injuries.

The aim of the current investigation was to examine the kinetics and kinematic of the PT-03 and PT1000 footwear in relation to conventional army boots.

Methods

Thirteen participants ran at 4.0 m·s in each footwear condition. Three-dimensional kinematics from the hip, knee, and ankle were measured using an 8-camera motion analysis system. In addition, simultaneous ground reaction forces were obtained. Kinetic parameters were obtained alongside joint kinematics and compared using repeated-measures analyses of variance.

Results

The kinetic analysis revealed that impact parameters were significantly greater when running in the army boot compared with the PT-03 and PT1000. The kinematic analysis indicated that, in comparison with the PT-03 and PT1000, running in army boots was associated with significantly greater eversion and tibial internal rotation. It was also found that when running in the PT-03 footwear, participants exhibited significantly greater hip adduction and knee abduction compared with the army boots and PT1000.

Conclusions

The results of this study suggest that the army boots and PT-03 footwear are associated with kinetic and kinematic parameters that have been linked to the etiology of injury; thus, it is recommended that the PT1000 footwear be adopted for running exercises.

Reference

Sinclair, J. &, Taylor, P.J. (2014) Influence of new military athletic footwear on the kinetics and kinematics of running in relation to army boots. Journal of Strength and Conditioning Research. 28(10), pp.2900-2908. doi: 10.1519/JSC.0000000000000477.

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