For over 20 years, my primary research focus has been in pediatric gait following orthopedic intervention. Two specific areas of interest are in patients treated for clubfoot and patients with limb deficiency. As a biomechanist, the utility of three dimensional gait analysis allows an objective measure of walking patterns in patients who have undergone treatment or are walking with assistive devices (example: prosthesis). Published research has primarily focused on adult amputee gait, leaving the pediatric population poorly described. Extensive work has been done at this institution assessing gait, oxygen cost during walking and exercise, strength assessment, and even in looking at these children’s activity on a day to day basis (step activity). Oxygen cost during self-selected walking was recently published showing that although the literature reflects gross limitations in the adult population, children are affected less dramatically than their adult counterparts. This has led us to look more closely at the mechanisms of gait that allow pediatric amputees to keep up with their peers. The use of gait analysis as a primary outcome assessment in determining the efficacy of clubfoot treatments has a long history at this institution. In 2001, we opened a prospective study, which would let us study the effectiveness of both treatments and evaluate gait and function longitudinally as the children mature. Over the last 20 years, our focus has been on gait and plantar pressures and although this work continues, it is clear that as our patient population grows and becomes skeletal mature, our testing protocol must expand so we can have a better appreciation of our patient’s full functional ability. Studying the spectrum may reveal differences and limitations that are otherwise missed, studying gait alone.