哑铃是一种用于增强肌肉力量训练的简单器材。它的主要材料是铸铁，有的外包

Dumbbell is a simple equipment used to strengthen muscle strength training. Its main material is cast iron, and some are covered with a layer of rubber. Its purpose is for muscle strength training, muscle compound movement training. Patients with low muscle strength due to exercise paralysis, pain, long-term inactivity, etc., hold dumbbells and use the weight of dumbbells to exercise resistance against resistance and train muscle strength.

Dumbbells are simple devices for muscle strength training. Its main material is cast iron, some of which are outsourced with a layer of rubber. Its purpose is for muscle strength training, muscle complex motion training. Patients with low muscle strength due to motor paralysis, pain, long-term inatilization, etc., holding dumbbells, can use the weight of dumbbells for resistance active exercise, training muscle strength.

Dumbbell is a simple equipment for muscle strength training. Its main material is cast iron, and some are coated with rubber. It is used for muscle strength training and muscle compound movement training. Patients with low muscle strength due to motor paralysis, pain and long-term inactivity can use the weight of dumbbells to carry out active anti resistance exercise to train muscle strength.