40-Min Strength HIIT Workout | Athletic Strength + Cardio with Core Work Finisher

Former studio athletes — welcome back. This 40-minute Strength HIIT workout combines strength training, cardio intervals, and core work to deliver a challenging and efficient session inspired by boutique fitness studios and early CrossFit-style conditioning. Expect a mix of dumbbells, bodyweight movements, and athletic intervals designed to build strength, elevate your heart rate, and leave you feeling accomplished — without spending hours in the gym. Perfect for busy professionals who still want to train hard, stay strong, and maintain an athletic edge. Equipment • Dumbbells • Mat • Water • Optional: kettlebells, mini loop bands Workout Style Strength circuits + HIIT conditioning Duration ~40 minutes If you want structured training programs like this scheduled for you each week, check out my programs and coaching resources at: michelleporterfit.com Subscribe for new workouts every week. Workout Agenda: 00:00 - Intro + Workout Overview 00:48 - Warm - Up 05:40 - Circuit 1 13:52 - Circuit 2 22:02 - Circuit 3 30:02 - Circuit 4 38:10 - Core Work Finisher 50:28 - Cooldown Stretch #strengthtraining #strengthworkout #homeworkout