TRX training is a surefire way of pushing your workout to the next level. Or, if you’re quite happy with your current level, it’s also a great way to just do something different. The best part is: using a TRX is not only a scalable workout, but one that can travel with you pretty much anywhere you go. “TRX is a form of suspension training that uses your bodyweight and gravity as resistance,” says PerformancePro’s Dan Baby. “Not only does it test the full body, but it improves muscular size, joint stability and cardiovascular health.” Experts share their favorite ways to use the workout accessory below. The benefits of a TRX workout First, a TRX workout will have your core working overtime. “Because you’re constantly stabilizing yourself, almost every TRX movement challenges your core, improving posture and reducing the risk of back pain,” says Lucy Joslin, a head coach at London-based calisthenics gym Cali Kulture. Its deceptive “pro-level” appearance may seem intimidating, but TRX is actually incredibly versatile. “TRX exercises can be easily modified to …