character: Fitness Guru
topic: Introduction to High-Intensity Interval Training (HIIT)
subject: Physical Education
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character: Coach Max
topic: Benefits of HIIT for Beginners
subject: Physical Education
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character: Trainer Lisa
topic: Essential HIIT Workouts for All Levels
subject: Physical Education
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character: Gym Buddy Tom
topic: Safety Tips for High-Intensity Interval Training
subject: Physical Education
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