Fitness
Warm up before you work out!
Wake up your central nervous system and get moving. by Justin Grinnell
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warm-up is too important to simply generalize. Doing five minutes of low-intensity bike or treadmill work followed by a few static stretches won’t get the job done. Instead, I have come up with specific goals we need to accomplish during our warm-up. In short, it is my goal to improve overall movement and prepare the body for higher-intensity movements. A good warm-up will: • Increase tissue temperature (which enhances the muscular system) • Prepare the central nervous system (CNS) • “Prime” and improve mobility • Rehearse and improve overall movement patterns • Activate certain muscles to improve stability More specifically, here are reasons why these changes are so important. 1. Increase tissue temperature Whenever I think of this part of the warm-up it takes me back to when I played sports in my youth. Before a
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practice or a game, we never just jumped into it. We ramped it up with a proper warm-up, or drills, to make us sweat. Even as a youngster I could feel the value of getting my heart rate up and breaking a sweat before battle. I would feel more mobile and flexible and have more vigor. Later, I would see why this worked so well. When you increase core body temperature you also improve muscle tissue extensibility. This, in turn, enhances movement and performance. Muscles can contract more rapidly and move more dynamically with higher tissue temperature. 2. Prepare the central nervous system (CNS) The central nervous system is so important to movement that I don’t even have the proper education to dissect it. The CNS is an amazing system that controls just about everything in our body. For years I have been someone who likes to work out right after I wake up. On at least three days of the week, I set my alarm for 3:50 am and shoot to start my workout no later than 4:30 am. Once I start to warm-up and get a sweat going, the body starts to wake up. Then when I
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start to either throw a medicine ball, jump some rope or roll and crawl on the ground I can feel my body preparing for the lifting to come. This feeling happens because a proper warm-up can increase the sensitivity of our nerve receptors and increase the speed of the nervous system impulses. It’s the communication tool between the nervous system and the muscular system prior to the workout. 3. “Prime” and improve mobility In my experience with performing the functional movement screen on hundreds of clients, lack of mobility in the ankle, hip, and thoracic spine pops up the vast majority of the time. So, enhancing and improving mobility is something we all need to accomplish. It’s the main reason why we warm-up, to improve range of motion. If we want to squat that day, we will need to enhance our ability to squat and that is where mobility work comes in. It helps get synovial fluid into the joint, lubricating it thus helping us to move better. Continued on page 30
NOVEMBER 2017
