Get Ergogenic and Get your CAP on!
There is some evidence suggesting that clenching your teeth may actually help you gain an ergogenic advantage in sport performance…at least in terms of strength and power development.
er·go·gen·ic: increasing capacity for bodily or mental labor especially by eliminating fatigue symptoms (merriam-webster)
This ergogenic effect is thought to occur via a complex and still-being-studied neurological phenomenon termed concurrent activation potentiation or CAP. For example, subjects clenching their jaws showed 12.1% higher rates of force development (RFD) and 15.1% improved results during grip strength testing and even continued to show short term improvements after relaxing their jaws compared to subjects tested without clenching. Another study showed improved RFD and time to peak force (TTPF) in subjects performing a jump in place.
What does this have to do with paddling?
To date, a quick search on Pubmed reveals there to be 28 studies relating to dragon boat and a majority of them are focusing on the benefits the sport holds for breast cancer survivors. It will probably be a while before the effects of CAP are studied in relation to dragon boat specifically, but at the cost of clenching vs not clenching your teeth, why not try it?
Imagine your paddlers being 15% stronger and 12% quicker at exerting force for those first few strokes off the line! If that’s not tapping hidden athletic potential without illegal drugs, I don’t know what is.
Power delivery is most easily applied and also critical to a race start situation. I say power delivery is “easier” during the start not because it takes less effort, but because the boat and water are relatively stationary to each other, which allows paddlers (both trained and untrained alike) to crank hard with decent efficiency. As boat speed increases, it takes a great deal more experience and training to efficiently put power into the water (one of the reasons why world-class teams finish races faster with fewer total strokes as novice crews). Although jaw clenching is probably a very common pre-sport action, dragon boat is a team sport that relies on the sum of its parts. Imagine your paddlers being 15% stronger and 12% quicker at exerting force for those first few strokes off the line! If that’s not tapping hidden athletic potential without illegal drugs, I don’t know what is.
The other reason why I propose the CAP effect may work best during the start is that there is currently no evidence that suggests the parameters of jaw clenching on prolonged athletic performance. So far, all the evidence shows only a concurrent or short term improvement in performance with jaw clenching. Plus, your masticators may be pretty tired after 2 minutes of continuous clenching.
Maybe jaw clenching is useless, maybe it’s something everybody already does, but it could also be one of the most overlooked areas of sport performance technique.
Of course, if clenching your jaw causes you pain, don’t do it! Sometimes you just have to use your brain and not your teeth to paddle better.