If you can't pull out 5 strands at the beginning, you can try to remove one or two strands, for example, pull out three strands at the same time. I think the poster should be fine. Take your time and go step by step. When you reach three, it will be very easy. Then add more, and you will soon conquer five!
In addition, the author plans to exercise arm strength. The arms are also divided into many parts. The muscles of different parts are exercised in different ways. For example, raising the arms straight in front of you and exerting force on both sides of the hands horizontally can exercise the back muscles, triceps and some parts. For the deltoid muscles, if you want to exercise the biceps, you can step on one end with one foot, and then hold the other end with the palm of your arm on the same side upwards. Lean your body slightly, keep the elbow position unchanged, move only the forearm, and pull the tensioner upwards. . Depending on your height and strength, this action can be done standing or sitting. I used this method to exercise my biceps when I was a child. While doing these two movements, since you have to hold the handle of the tensioner tightly, the forearm muscles will also be exercised at the same time. One thing to note is that no matter how you exercise, you must check whether the connection between the springs and the handles on both sides of the tensioner is firm.