The leg extension is a superior exercise for isolating your quadriceps muscles and strengthening your legs. Performing leg ...

Start by lying on a mat with your feet flat on the floor and your knees bent, resting your arms on your thighs. Keep your lower back on the mat, but lift your shoulders and upper back off the mat by ...

This exercise focuses on the lower abdomen and engages your core. Scissor kicks also work your glutes, quads, and abductors.

For those inspired to achieve Katy's physique, the journey to fitness might be more straightforward than expected. Fitness ...