Some light workout today for the HIIT course. But doing 5 rounds of this can get tiring. A good cardio workout for tennis training.
Disclaimer: Do not perform these exercises if you have any injury, get rehabilitation first. If you get short of breath, feel fatigued or tired during any of these workouts, stop and take a break. Consult a doctor/trainer if necessary before starting any workout session. Children should do them under supervision of an adult.
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These workouts are taken from the Darebee 30 days of HIIT program.