Search	PubMed Query – February 1, 2021	Results
#4	#1 AND #2 AND #3	315
#3	“Physical Functional Performance"[Mesh] OR “Gait"[Mesh] OR “Gait Analysis"[Mesh] OR “gait∗"[tiab] OR biomechanics[tiab] OR “functional performance"[tiab] OR “functional test∗"[tiab] OR ((motion[tiab] OR movement[tiab] OR moving[tiab] OR locomotion[tiab] OR walk∗[tiab] OR ambulati∗[tiab]) AND analys∗[tiab])	221,983
#2	“Forefoot, Human"[Mesh] OR “Foot Joints"[Mesh] OR “forefoot"[tiab] OR “midfoot"[tiab] OR “toe"[tiab] OR “toes"[tiab] OR “hallux"[tiab] OR “metatars∗"[tiab] OR “intertars∗"[tiab] OR “midtars∗"[tiab] OR “transtars∗"[tiab] OR “intermetatars∗"[tiab] OR “transmetatars∗"[tiab] OR “tarsometatars∗"[tiab] OR “foot joint∗"[tiab] OR “tarsal joint∗"[tiab] OR “ray"[tiab] OR “lisfranc"[tiab] OR “chopart∗"[tiab]	431,368
#1	“Amputation"[Mesh] OR “amputat∗"[tiab] OR “disarticulat∗"[tiab]	51,468

Mesh, Medical Subject Headings. tiab, title and abstract.