by Andrew Marshall

Energy Expenditure & the Load Carriage Decision Aid (LCDA)

Research Paper Title Estimating Energy Expenditure during Level, Uphill, and Downhill Walking. Background The Load Carriage Decision Aid (LCDA) walking equation was developed from literature-aggregated group mean data to calculate standing and level walking energy expenditures in healthy, military-age adults. The LCDA walking equation has not been validated for use in individuals or graded walking.… Read More

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by Andrew Marshall

Staying Fit & Healthy on the Job

Staying fit is a priority for many people. You may think that going to the gym a few times a week or even participating in a hardcore military fitness boot camp means that you have it all covered. However, that is not necessarily the case. We all spend 8+ hours a day on the job,… Read More

by Andrew Marshall

Can You Predict Ground Reaction Force from a Hip-Borne Accelerometer during Load Carriage?

Research Paper Title Predicting Ground Reaction Force from a Hip-Borne Accelerometer during Load Carriage. Background Ground reaction forces (GRF) during load carriage differ from unloaded walking. Methods to quantify peak vertical GRF (pGRFvert) of Soldiers walking with loads outside of a laboratory are needed to study GRF during operationally relevant tasks. Therefore, the purpose of… Read More

by Andrew Marshall

Staying In Top Shape after Retirement

A military career often comes with a rigid and invigorating physical exercise regime. As the guardians of your nation’s safety and freedom, you always want to be in the best possible shape. But, as you reach retirement age, it can be tough to keep to the same schedule as you may have had when you… Read More

by Andrew Marshall

Want to Walk Faster – You Just Need a Little Stimulation!

According to recent research, mild electrical stimulation can make us walk more quickly. When we move, hairs in our inner ears detect changes in speed and feed this information back to the brain, improving our balance. Shinichi Iwasaki at the University of Tokyo, Japan, and his colleagues have found that electrical stimulation may enhance this, prompting people… Read More

by Andrew Marshall

Human Locomotion: Springs, Muscles & Walking/Running

Research Paper Title Bipedal walking and running with spring-like biarticular muscles. Abstract Compliant elements in the leg musculoskeletal system appear to be important not only for running but also for walking in human locomotion as shown in the energetics and kinematics studies of spring mass model. While the spring-mass model assumes a whole leg as a linear… Read More

by Andrew Marshall

Linking Attention, Walking & Mobile Phones

Cell phones are making people walk differently. A study that tracked how 21 people negotiated an obstacle and a step, without a phone or while texting, reading the screen, or making a call, found that using a phone made people walk slower and in less of a straight path, particularly when texting (Timmis et al., 2017). Reference Timmis, M.A, Bijl,… Read More