In 2009, RumbleRoller forever changed foam rolling with the introduction of the first deep-tissue roller. It's high-profile bumps penetrate deeper into the muscle, and large inter-bump spaces provide room for soft tissue displacement. Furthermore, the bumps' resilience enables them to deflect around bones and get closer than ever to the source of your problem.
FOAM ROLLERS MERELY COMPRESS MUSCLE
When you roll on a conventional foam roller, a compressive force is generated. The amount of compression depends on the size of the contact patch between the roller and your skin. For a typical 6" diameter foam roller, that contact patch is large, so the amount of compression is small and the effect on deeper tissues is very limited.
To counter this limitation, athletes often progress to smaller and harder rollers, or even PVC pipe. A downside of that approach is that smooth, hard rollers don't conform to the shape of your body. While they may have the intended effect in some areas, they don't work well around bony areas - e.g. your pelvis, spine, and scapula.
As you roll on a RumbleRoller, its firm but flexible bumps work like the thumbs of a massage therapist to knead and stretch your muscles. This action erodes trigger points, helps restore flexibility, and brings quick relief to common types of muscular pain.
