[...] by the very nature of the exercise, it is an isometric contraction and far less effective than resistance through a range of motion specific to real life. Furthermore, if the biomechanics of pretending to sit in a chair are considered important, then wouldn’t it be more prudent to focus on the components of truly lowering to and rising from a real chair? “Wall sits” offer no real benefit simply because they do not involve the gluteals, hamstrings and quadriceps as a functional unit.

If your boot camp instructor asks you to do a wall sit, you should strongly question your instructor’s competence, and consider investing your money in a Vancouver boot camp program that won’t waste your time and energy doing pointless, inefficient, and ineffective exercises.