Which one of the following choices is an effective way to pervent low-back pain

A. eliminate warm-up before exercise

B. lift objects by putting weight on your upper back

C. maintain correct posture

Do. limit the amount of exercise you do per week

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Which one of the following choices is an effective way to pervent low-back pain A. eliminate warm-up before exercise B. lift objects by putting weight on your upper back C. maintain correct posture Do. limit the amount of exercise you do per week