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Figure 4 Crunch

How to do figure 4 hiit exercise

Lay on your back and flex lift one leg to a 45 degree angle from the floor. Cross your other leg over the raised leg, resting that ankle on your thigh, just above your knee. Take the opposite hand and lift your shoulder off the mat to touch the bent knee. The other hand can gently support your neck. The lower the straightened leg is, the harder this movement gets! Conversely, if this movement creates too much pressure in your lower back, raise the straightened leg higher in the air.

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