Main functions:Dumbbells are simple devices used to build muscle strength.Its main material is cast iron, some coated with rubber or plastic.It is used for muscle strength training, muscle compound movement training. Due to exercise paralysis, pain, long-term inactivity resulting in low muscle strength patients, hand dumbbell, availableWeight of dumbbells for resistance active movement, training muscle strength.Dumbbells can be used to train a single muscle. If weight is added, coordination of multiple muscles is required.Usage:1. Choose the right weight before you practice your dumbbells.2, the purpose of the exercise is to increase the muscle, the best choice is 65%. 85% load dumbbells. For example, if you can lift a load of 10 kilograms each time, you should chooseThe weight is 6. 5 kg & ndash; 8. 5 kilograms of dumbbells for exercise. Practice every day. 8 sets, each set 6— 12 times, the movement speed should not be too fast, every group interval 2—3 minutes. The load is too big or too small, the interval time is too long or too short, the effect will be bad.3. The purpose of the exercise is to reduce fat. It is recommended to do 15-25 or more exercises in each group, and the interval between each group should be controlled in 1-2 minutes. If you think about this exerciseVery boring, can cooperate with their favorite music exercise, or follow music do dumbbell aerobics.Benefits of long-term dumbbell practice:1. Keep practicing dumbbells for a long time, which can modify muscle lines and increase muscle endurance. Often do dumbbell exercises with heavy weight, which can make muscles firm and strengthen muscle fibers.Increase muscle strength.2, can exercise upper limb muscles and waist, abdominal muscles. Such as doing sit-ups in the neck back hand grip dumbbells, can increase the load of abdominal exercises; Holding a dumbbellDo body side bend or turn body movement, can exercise abdominal, external oblique muscle; Holding the dumbbell in front of the arm lift, side lift and so on can exercise the shoulder and chest muscles.3. Exercise lower limb muscles. Such as holding dumbbell one foot squat up, two feet squat jump
