Definitely, yes, it is. This is an upper-body-centered rowing machine that is 10 times more tiresome than it seems at first sight. It activates the upper body well and also involves the core and leg muscles, i.e., quads and hamstrings, and glutes for better stabilization and keeping your upper body straight and stable. It’s easy to add several intervals of SkiErg rowing to your workout. So, you’ll pump up your cardiovascular system greatly. For instance, you can try other variations of rowing: the butterfly motion looks like a swimming butterfly stroke, one-legged rowing for bigger core involvement, and the kneeling version with the whole work of the core and upper body.