Primary: Arms, Back, Shoulders  (biceps brachii, erector spinae, latissimus, teres minor, rhomboideus)
Secondary: Legs, Shoulders (quadriceps, deltoideus)

In the exercise Low-Row, a high force can be applied. The exercise requires a good body tension to avoid a rotation in the upper body. The lower back and the legs have to be stabilized strongly by the core muscles.

Variosling-PT-lap-Rudern-1-web Variosling-PT-lap-Rudern-2-web
Sling Training Bauchübung

Starting Position

Stand frontally to the suspension with the feet hip width apart and the legs are slightly bent  in the knee joint. The exercising arm is outside and shows forward in extension of the rope. The back is always straight.
The PT is inside and holds the rope under tension.

Movement

The arm is bent at the elbow and pulled back. The elbow is guided past close to the body.
The PT performs a light squat while yielding the tension in order to intercept the load more easily. He then coming back from the squat pulls the trainee back into starting position.

Hint
The PT should work on this exercise with a stretched arm and his body weight as the resistance of the trainee can be very high.