Scissor kicks effectively work the lower rectus abdominis, obliques, and hip flexors. This exercise enhances core strength, stability, and endurance, which are essential for swimming efficiency.

Leg lifting exercises are efficient at targeting your lower abdominal muscles — think leg raises or reverse crunches, for ...

Then the next exercise are scissors ... So, now you're doing scissor kicks. Then we have the sways from side to side. This still works your lower abs but also gets a little bit of your obliques.