The TRX Squat Row is a single leg/single arm workout. Which means, you will be holding the TRX straps with one arm, and that you will be performing the exercise on one leg. Using the TRX for any type of squat is so good for you. The problem with traditional squats using the barbell, is that you can only get so deep in your squat because of all the weight. Because you can only go down to a 90 degree angle, you really are only working out your hamstrings, while your quads get left out, and if you leg muscles do not get an even amount of strength building, then you are very likely to get injured.
The great thing about the TRX is that it allows you to almost get your butt to the floor on a squat, providing you with full range of motion and full strengthening for the quad and the hamstring. The TRX Squat Row is one of my favorite TRX Squats because you get to focus on one leg at a time, which allows you to really get a great workout with each leg. This workout also helps to build your core strength and your back muscles. The TRX always provides a multiple muscle workout.
So here is how you perform the TRX Squat Row. To start, grab your TRX handle with the right hand and balance on your left leg with your right leg floating in the air. Once you get your balance, you can then perform the squat, going down slowly till your butt almost hits the ground and then power up, try to keep your floating leg straight. This workout is performed on one leg at a time, so make sure that you workout both legs an equal amount of times.
Here is a video to give you a visual: