Video prompt: A daily commute via bicycle along urban bike lanes, city buildings whizzing by as cyclists zip through morning traffic.
Defect: Deformation (any reason involved with a movement)
Explanation: While riding, the cyclist’s legs show abnormal shape changes and do not alternate naturally. Instead, only one leg consistently appears in the upward position while the other remains down, which is inconsistent with typical cycling motion. Additionally, some individuals’ legs undergo further shape distortion, altering their stable form.