5 exercise machines great for cardio

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When you’re chasing your goals for building muscle, it’s important not to neglect the most important muscle of all: the heart. Good cardio exercise is an essential part of any fitness routine, and the right exercise equipment can help strengthen your heart and lungs. Here are five exercise machines for your next cardio workout.

Sunny Health & Fitness Treadmill With Auto Incline

This treadmill’s auto incline …