There is provided an orthotic configured for muscle imbalance correction. The orthotic has a strapping configured for physically activating an undercompensating muscle group by physically pulling substantially in-line with muscle fibres of the undercompensating muscle group to assist muscle activation and physically deactivating an overcompensating muscle group by physically pulling and therefore compressing across muscle fibres of the overcompensating muscle group to provide muscle resistance. Examples of the undercompensating muscle group are at least one of the gluteus maximus, medius, and minimus, vastus medialis and vastus medialis oblique. Examples of the overcompensating muscle group are at least one of the tensor fascia latae and iliopsoas.