A popular workout for looking to spice up their cardio, rowing machines are fun, engaging and low impact—reducing stress on the joints. Similar to stationary bikes, rowing machines are great for injury prevention and rehab. Use rowing machines for weight loss, toning and building muscles, increasing stamina and more. Rowing machines also help strengthen the lower back and abdominal muscles to build a stronger core. For your lower half, rowing machines will also target quads, thighs, glutes, and calves.