Een goed explanatie over de Bird Dog oefening. Een zeer goed rugpijn oefening
Six-pack abs are achieved with birddog exercise
In order to develop a good six-pack, a strong inner core is a must. The birddog is one exercise you can do to strengthen your inner core and help keep the stomach area nice and tight.
Perform four sets of six reps, with each side, holding each rep for a two-count.
