Action: bend your knees slightly, hold dumbbells in both hands and hang them in front of you. Use the contraction force of latissimus dorsi to pull the dumbbell to the elbow level or slightly higher than the shoulder, then stop for a while, and then use the tension of latissimus dorsi to control the dumbbell to recover slowly. Note: when rowing, latissimus dorsi mainly contracts and stretches, and the upper body should not be lifted to avoid borrowing.

2. Bend over and paddle with one arm: mainly practice the outer back and lower back.

Action: Hold the dumbbell with the palm inward, and hold the fixture at the knee position of the same leg with the other hand to stabilize the body. Lift the dumbbell to the waist position (the back muscles are fully contracted), stop for a while, then slowly recover in a controlled way (fully stretch the back muscles), and then change one side to the other after completion.

3. Straight leg hard pull: mainly practice the lower back, gluteus maximus and biceps femoris.

Action: Hold the dumbbell with both hands and hang it in front of you. Your feet are naturally open, shoulder width apart, your legs are straight, your back is straight, your body is bent forward, and your head is raised until your upper body is roughly parallel to the ground. Then the lower back muscles contract and restore the upper body.

Note: In order to maintain tension, the dumbbell should not touch the ground when leaning forward. You shouldn't walk too fast.