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When time is limited, results matter most. ISSA’s Interval Training course shows you how to design workouts that maximize calorie burn, endurance, and strength in less time. Learn the science behind interval protocols, from aerobic intervals to HIIT, and how to adapt them for different clients. Keep training efficient, effective, and engaging for every schedule.
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🇺🇸 Ship from USA · On Agora since 2026
$39.95