A suspension trainer (such as a TRX) can be an awesome tool in your workout arsenal.
One of the most popular suspension trainer exercises is the Suspension Trainer Row.
Since the TRX isn't a fixed implement, it requires extra effort for stability. Your core and glutes have to work harder to maintain proper posture throughout the movement.
The Suspension Trainer Single-Arm Row takes things a step further.
"While the Row is a great exercise, the single-arm version provides enhanced benefits. Not only does the Suspension Trainer Single-Arm Row target the upper back, rear shoulder and biceps, but it also challenges core strength (particularly in the rotational plane)," write Kyle Arsenault, CSCS and owner of The Athletic Way. "The hips and torso want to rotate toward the ground at the bottom of the Row and toward the ceiling at the top of the Row. The goal is to prevent this from happening and keep the hips and shoulders square throughout the movement."
It's a challenging move, no doubt. But by simply moving your feet farther away from the anchor point of the suspension trainer, you can decrease the challenge.
Likewise, moving your feet closer to the anchor point will increase the challenge.
If you've never performed a normal Suspension Trainer Row before, start with that and work your way up to the single-arm version.
Watch the video above for a detailed instruction on proper form and execution. Go for 2-3 sets of 6-10 reps on each side.