This exercise engages your legs, primarily your quadriceps and hamstrings, while also helping you gain balance and use your core to stabilize yourself alongside engaging your glutes, shoulders and cardiovascular system.
Push-ups are a bodyweight workout that work on your chest and core muscles while requiring no equipment and can be performed anywhere.
Lunges are excellent for both working out your cardiovascular system while at the same time building strength and muscle mass in your legs.
The lying Russian twists are an excellent exercise that builds your core and abs while chiseling that coveted "V" of the lower abs.
The dumbbell flyes are an excellent exercise that drastically isolates the chest muscles and focuses primarily on developing those muscles.