2. Learning expenses: the personal fitness instructor costs about 20,000 yuan. It is not appropriate to choose whether the tuition fee is too high or too low, so we must consider it comprehensively.
3. Obtain the qualification certificate of fitness instructor; Third, hire a personal fitness trainer.
Head-to-ball knee type
Action: Sit on the top edge of the fitness ball with your legs together. Inhale, raise your hand and keep your back straight. Exha