In the world of health and fitness, the abundance of performance metrics has revolutionized the way we analyze client and athlete data, but determining which metrics truly matter in risk reduction and performance enhancement can remain a challenge. 

Muscle strength ratios are a testing metric that has gained significant attention from health professionals in recent times and are commonly assessed during pre-season fitness evaluations, general client management, and post-operative testing batteries.

Ratios are single-value metrics made up of two parts: a numerator and a denominator. Essentially, a ratio quantifies the relationship between two quantities, showing how many times one value contains or is contained by another. In sports science, when we talk about symmetry, we're usually comparing metrics between different sides or muscle groups. When looking at ratios, particularly with strength testing we are often looking at the relationship between agonist/antagonist muscle...