While external load is added during locomotion, humans increase the activation of extensors during stance and suppress the initiation of flexors during swing. External load at the ankles, rather than on the waist or thigh, elicits higher activities from ankle extensors, and increases stride length and decreases cadence in adults. Spatiotemporal and kinematic patterns become adult-like in children aged 5-8 years. However, little is known if children show adult like kinetic patterns while walking with external load This study aimed to investigate differences in kinetic patterns between children and adults while walking with external ankle load using both time and frequency domain analyses.
Wu J, Ajisafe T, Beerse M, & Liang H. Children display adult-like kinetic pattern in the time domain but not in the frequency domain while walking with ankle load. Poster presentation at the 39th American Society of Biomechanics annual meeting, Columbus, OH, August 5-8, 2015.