1 If your credit card management is managed by a big outside firm like Elan, then your credit card from your local bank may feel no different than a credit card issued from the other side of the country. 2  One of the main benefits a local credit union or bank can offer you is personal customer service.
The plank jack is a exercise for those with a intermediate level of physical fitness and exercise experience. Watch the plank jack video, learn how to do the plank jack, and then be sure and browse through the plank jack workouts on our workout plans page!
The plank exercise can be performed with front or side variations. Photo Credit Ingram Publishing/Ingram Publishing/Getty Images. The plank is an isometric exercise that targets your abdominal and back muscles, and itâs used for developing core strength and balance.bs of Steel. The main muscles contracted by the plank are the rectus abdominis and the hard-to-reach transversus abdominis. These are the muscles in your belly, and the muscles that sit in between your belly and your side muscles.