 As the weather warms up, we're back on the river and today we're talking about kayaking and core strength. Two exercises you can do that are going to help prevent injuries. First one is a plank. Remember when doing a plank to keep your shoulders back and down, keep your back flat and always contract your rectus abdominis. Start at about a 30 second interval and work your way up to a minute, a minute 30 and even higher. The second exercise is a Russian twist. When you're doing these, make sure you contract your transversive abdominis, you breathe with every rep and you always keep your back flat to prevent any back injuries. Start at three sets for about 15 to 20 reps and you can always work up from that. And as always, when you're on the river, make sure you use a life preserver, proper sunscreen and always stay properly hydrated.