HIIT workout routine that you can try:

Warm-up:
Start with a 5-minute warm-up to prepare your body for the high-intensity intervals. You can do a light jog, jumping jacks, or any other dynamic stretches to get your muscles warmed up.

HIIT Workout:
Perform each exercise for 30 seconds, giving maximum effort, followed by a 15-second rest. Repeat the circuit for a total of 4 rounds.

Jumping Jacks: Jump your feet wide while raising your arms overhead, then jump back to the starting position. Repeat for 30 seconds.
Rest for 15 seconds.

High Knees: Run in place while bringing your knees up towards your chest as high as possible. Keep a quick pace and engage your core. Repeat for 30 seconds. Rest for 15 seconds
.

Burpees: Start in a standing position, then squat down and place your hands on the ground. Kick your feet back into a plank position, perform a push-up, and then jump back to the squat position. Jump up explosively with your arms reaching Overhead. Repeat for 30 seconds.
Rest for 15 seconds.

Mountain Climbers: Get into a push-up position with your hands directly under your shoulders. Bring one knee towards your chest, then quickly switch legs, as if you're running in place. Keep a fast pace and engage your core. Repeat for 30 seconds.
Rest for 15 seconds.

Squat Jumps: Stand with your feet shoulder-width apart, squat down, then explode up into a jump. Land softly and immediately go into the next squat jump. Repeat for 30 seconds
.

Cool-down:
Finish the workout with a 5-minute cool-down to gradually lower your heart rate. You can do some light stretching, such as hamstring stretches, quad stretches, and arm stretches.

Remember to listen to your body and modify the exercises or rest periods as needed. Stay hydrated throughout the workout and enjoy the benefits of this HIIT routine!