By several small jumps in short distances the horses learn to work flexibly in the back and to balance themselves always in the same rhythm.
Gymnastic rows can improve the attention and obedience of the horse by alternating the obstacles in height and width. Instead of jumping, a pole can also be placed on the ground. The "missing" jump requires more concentration from the horse.
Heavy horses can be trained with the help of in-out rows not to storm over the jumps, as they must gather again immediately after each jump to overcome the next jump.
The horse cannot overcome three or four in outs in a row with the help of momentum, so it must jump out of its hindquarters with force. This results in a high training effect, even if no jump is higher than 60 cm. However, care must always be taken not to overtax the horses.