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Metabolic analysis of male servicemembers with transtibial amputations carrying military loads

This study examines the metabolic requirements of servicemembers with transtibial amputations carrying military loads while walking at steady speeds. Results show higher metabolic demand for injured servicemembers compared to controls, suggesting they can resume military duties.

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Metabolic analysis of male servicemembers with transtibial amputations carrying military loads

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  1. Metabolic analysis of male servicemembers with transtibial amputations carrying military loads Barri L. Schnall, MPT; Erik J. Wolf, PhD; Johanna C. Bell, MSE; Jeffrey Gambel, MD; Carolyn K. Bensel, PhD

  2. Aim • Examine metabolic requirements of servicemembers with transtibial amputation (TTA) wearing loaded rucksack and walking at steady speeds. • Relevance • For servicemembers who have amputations and wish to return to Active Duty, performing common military tasks, such as marching with loads, is essential.

  3. Methods • Tested 12 servicemembers with unilateral TTA and 12 uninjured controls. • Walked on treadmill at 2 walking speeds (1.34 and 1.52 m/s) while carrying 32.7 kg load. • Oxygen consumption was recorded.

  4. Results • Injured servicemembers showed significantly higher metabolic demand than controls: • 8.5% at 1.34 m/s. • 10.4% at 1.53 m/s.

  5. Conclusions • Energy consumption for servicemembers with TTA is significantly greater than for uninjured servicemembers. • However, results may not be clinically relevant. • Compared with previous civilian data: • These participants are less burdened by their injury and perform closer to their uninjured counterparts. • Servicemembers with TTA may be able to resume former duty assignments or remain on Active Duty in new roles.

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