Final answer:
Poor technique is the most common cause of weight training injuries in children and adolescents.
Step-by-step explanation:
The most common cause of weight training injuries in children and adolescents is poor technique. When individuals do not use proper form or have adequate guidance on how to perform exercises correctly, they are at a higher risk of getting injured. This could include lifting weights with improper body alignment, using incorrect grip, or not warming up adequately. Supervision and guidance from knowledgeable trainers or coaches can help to prevent these injuries and ensure proper technique.
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