Differences Between Building Muscles & a Toned Body. Part of the series: Cardio & Muscle Building. Building muscles involves increasing your overall size, while toning muscles involves strengthening and slimming down. Learn about the differences between building muscles and a toned body with help from a professional women's fitness trainer in this free video clip. Read more: [ Ссылка ]
![](https://i.ytimg.com/vi/kRlpsaCXAvU/maxresdefault.jpg)