He does oblique crunches from that position.
If you want to work your obliques, I think you would be better served
doing oblique crunches on the floor or oblique crunches on the ball.
Not exact matches
Watch the video to learn how to
do this exercise which combines a leg lift with a powerful
oblique crunch.
Watch the video: How to
Do an
Oblique Driving - Knee
Crunch
Side
Crunches for the
Obliques I normally place my feet against a wall so I don't slide.
For example, I usually
do a circuit ab workout with regular sit ups for rectus abdominis, Russian twist for my
oblique,
crunches for upper abs and incline leg raise for lower abs.
Sure, you can
do tons of
crunches and sit - ups, but if you aren't properly working your
oblique muscles, then you won't have the complete 6 - pack package.
You can
do cable
crunches for the
oblique while lying on the floor, but you can get more range of motion on the stability ball.
If you want to be creative you can
do stability ball
oblique crunches with cables to add even more resistance and challenge your
oblique muscles.
Crunches don't work as many muscle groups as planks but they hit the external rectus abdominus muscles and the external
obliques hard, the ones that give your abs definition when they're developed.
Now here's the cool thing about the abs
crunch... depending on the type of abs
crunch you
do, you can shift the focus of the exercise from the upper abs to the lower abs and even to the
obliques!
Sit ups and
crunches only hit a small portion of your core, the rectus abdominus, which means you don't work your lower back or
obliques.
If you've been
doing ab machines that only go front to back and neglecting twisting motions, try adding
oblique floor
crunches to your ab workouts.
However, the
obliques work at maximum effectiveness when you
do twisting
crunches or rotational motions.
You can
do side
crunches, which are better for
oblique.
Since I already have a good amount of bodyweight work
done (was a few years ago though), perhaps I could get away with just
doing machine / cable
crunch, machine
oblique, and weighted captains (at least for now)?
Side planks hit the
obliques, but you can challenge yourself more by
doing a side plank with a leg raise, rotating side planks, or side planks with a
crunch.
To hit the
oblique muscles on the sides of the waist, you can
do your
crunches with a twist (elbow to knee) or you can lie on your side and
do side
crunches.