One is that the posture and essentials are not correctly mastered, which does not affect the effective parts. What matters is that the weight does not play its due role. 1. Ensure the accuracy of movements, which can be mastered by fitness instructors. 2. Focus on the back muscles with your mind and feel the stretching and tightness of the muscles. 3. Does the weight of dumbbells meet your needs? If the dumbbell is too light for you, the effect is not obvious. Of course, too much weight is not enough. Too much movement will make you subconsciously lever up and lead to movement deformation. Dumbbell rowing mainly exercises latissimus dorsi and teres major. 1, dumbbell in one hand and stool in the other. Bend over and arch your back. Keep a stable lower body. 2. Try to use your back strength. Slow recovery. 1, rowing with dumbbells to exercise latissimus dorsi. 2. Pay attention to consciously contracting the back muscles, not the arm muscles. Don't move your waist when rowing with dumbbells on one arm. Grab the dumbbell, bend your knees and hips, and lean forward. Keep your back straight. The arm is slightly bent. Lift your arms with your shoulders and keep your elbows slightly above your torso. Go back and keep your arms slightly bent. Repeat. Oh, in that case, do you practice every other day or every day? It depends on your own training plan. Some of them can be arranged to practice for 5 or 3 days.