Breast Health 101: Introducing The Sports Bras Size Chart

Have you been having trouble lately containing the weight on your chest while running? Or are the golden girls threatening to pop out every time you splint? Do you know how to use a sports bras size chart? Well, worry no more. You are in the right place. In this article, we’ll discuss a few issues pertaining breasts and generally how to handle them as a runner. We’ll also help you pick your perfect sports bra size using the standard sports bras size chart. Let’s get started, shall we?

A Woman’s Breast Anatomy

Mature female breasts contain the mammary glands, which are attached to pectoralis muscles via connective tissue. It is composed of five major parts.      

  • Ligaments of cooper:

           These are fibers of connective tissue that attach your breast to the skin.    

  • Lobes and lobules:

           A healthy breast has between 15-20 lobes. These further divide to form lobules. Milk ducts connect the lobes and lobules. Each lobule contains tiny; hollow sacs called alveoli. For a lactating mother, these ducts carry milk from the alveoli to the nipple.       

  • Ducts:

           Secreted fluids travel out of the breast through the tiny openings on the nipple through these canals.   

  • Fat tissue:

           Is composed of adipose tissue, which surrounds the lobules and ducts. It also determines the texture and size of your breast.          

  • Areola:

           Is the dark skin surrounding the nipple.  

sports bra women

The Dangers Of Poorly Supported Breasts While Running

Have you had ever run without a sports bra? I bet you already know how uncomfortable it can get. And now that you understand your breast anatomy, let’s see what happens when you don’t support that tissue properly, and keep subjecting it to motion and strains of all types.

Breasts can get heavy depending on their size and also if you’re lactating. When you run without proper support you can cause your body a myriad of problems. These include:             

A backache:

This is precisely common in women with large breasts. A bra that doesn’t fit well causes stress on the back muscles (pectoral girdle), which over time can cause postural disorders and back pain. A restraining bra can cause stiffness to your spine that should be comfortable enough for bending, rotating, and moving.          

Bruising and scaring on the shoulders:

This is caused by wearing a bra with thin straps. They dig into the skin. Consequently, you see painful dents, which over time cause scars.   

Neck pains:

An ill-fitting bra causes strain on your neck because of the pull-down effect of your breasts. When your neck muscles are overworked, you are likely to suffer neck pains.   

Ulnar neuropathy:

When you tighten your bra straps too much, they will compress your shoulder nerves and cause trouble.  


These are often caused by the