Tag: Wilks Formula

The Confusing History of Strength Co-Efficients

Kevin Phengthavone 415lbs squat black and white

Undoubtedly we’ve all been faced with the question, who is stronger? As a teenager it emerged when those weighing 150 lbs. or less sought to square up to their heavier brethren. Was it more impressive bench pressing 200 lbs. at 150 or 280 lbs. at 200 lbs. bodyweight? While our adolescent selves often solved this problem by calling the other side fat or skinny, we were nevertheless ignorant of this perennial problem. Can strength across bodyweights be compared? For powerlifters or weightlifters currently reading this post, the words Wilks or Sinclair has undoubtedly passed through your lips. For the unaware, the answer is yes, albeit with some reservations.

Since the 1930s a series of formulas have been used to with the express intention of discovering who is the strongest lifter across all weight classes. Varying in their level of nuance, the strength coefficients, as they’re termed, have given a scientific air to locker room debates about the strongest lifter. Perhaps more significantly, they’re also used in competition to determine the overall winner. With that in mind today’s post seeks to examine the history of strength coefficients, beginning in the 1930s and continuing to the present day. As will become clear, the evolution of the strength coefficients used largely echoes the growing professionalism of weightlifting and powerlifting more generally.

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