Toning' Muscles Is a Fitness Myth — the Truth About Looking Athletic

Toning' is a marketing term designed to appeal to women, but muscles cannot be toned, they can only grow or shrink.

Can I build muscle with 1 kg of weight? - Quora

Why Muscle Toning Workouts Are Overrated for Fitness Plans

Are very light handweights effective in toning arm muscles? - Quora

TONING IS A TOTAL MYTH: THE REAL TRUTH BEHIND BUILDING MUSCLE - Intekai Academy

Is the Idea of Toning Muscles a Myth? • Cathe Friedrich

Busting popular Fitness Myths - Rachel Law Fitness

Are very light handweights effective in toning arm muscles? - Quora

Muscle Toning vs. Muscle Building: What Works Better

Do higher reps get you ripped or toned? – Fit Philosophy