character: Emily Wang
topic: Muscle Endurance and Lactic Acid Threshold
grade: 9
subject: Science
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character: Dr. John Smith
topic: Effects of Lactic Acid on Athletic Performance
grade: 9
subject: Science
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character: Coach Lisa Green
topic: Improving Muscle Endurance in Teen Athletes
grade: 9
subject: Science
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character: Professor Mike Johnson
topic: Understanding Muscle Fatigue and Recovery
grade: 9
subject: Science
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