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Biomechanical comparisons considering risk to the lumbar spine: walking with no load, a backpack, and a person on the back

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dc.contributor.supervisor Alexander, Marion (Kinesiology and Recreation Management) en_US
dc.contributor.author Graham, Sheena
dc.date.accessioned 2015-02-11T16:26:14Z
dc.date.available 2015-02-11T16:26:14Z
dc.date.issued 2015-02-11
dc.identifier.uri http://hdl.handle.net/1993/30266
dc.description.abstract Participants were twelve 70+ kg male strength-trained athletes and one passenger child with a mass of 29 kg. The male participants walked three times over a force plate embedded in an eight metre walkway for each of three conditions: carrying no load, a 29 kg backpack, or a 29 kg passenger. Variables were compared using a repeated measures ANOVA test with a Bonferroni correction. Both load conditions produced compensatory trunk flexion; trunk flexion increased from no load to piggybacking to backpacking. Trunk range of motion was similar for no load and piggybacking, but increased to backpacking. The backpack load caused greater resultant and total magnitude of torque than the passenger load. The trunk extensors dominated with no load and piggybacking and the trunk flexors dominated with backpacking. Many of the significant differences between conditions suggest that piggybacking is biomechanically more similar to natural gait than is backpacking. en_US
dc.subject Backpack en_US
dc.subject Piggyback en_US
dc.subject Lumbosacral en_US
dc.subject Load Carriage en_US
dc.subject CrossFit en_US
dc.subject Biomechanics en_US
dc.title Biomechanical comparisons considering risk to the lumbar spine: walking with no load, a backpack, and a person on the back en_US
dc.degree.discipline Kinesiology and Recreation Management en_US
dc.contributor.examiningcommittee Glazebrook, Cheryl (Kinesiology and Recreation Management) Leiter, Jeff (Kinesiology and Recreation Management) Telles-Langdon, David (University of Winnipeg) en_US
dc.degree.level Master of Science (M.Sc.) en_US
dc.description.note May 2015 en_US


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