One should argue yes! Maybe more of a fueling agent for the body than a gas, its a long forgotten and falsely retired tool of fitness that should have it’s day of resurrection. The jumping jack is such a basic exercises that everyone has done, that in it’s simplicity, it’s glory has dulled. The jumping jack can be utilized by almost anyone regardless of skill level and is a great replacement for those not up to jogging or jump roping. Doing a simple regimen of these along with other cardio exercises can yield some surprising results. Give this finely aged exercise a once over, it has aged to perfection like Rolling Stones and fine wine.