The Science of Trail Legs
Have you ever heard hikers talk about getting their trail legs? Ever wonder just what that means? Read on my bipedal friends to learn the science of trail legs!
The Science-y Bit
Neuromuscular adaptation is the name of the game here. This term refers to the nerves from your spinal cord that connect to the muscles. When the signal is sent from the brain down the spinal cord and through the nerve, the muscle contracts.
Your body will only maintain as many of these nerve/muscle connections as it needs for your daily activity level and no more. The body is extremely efficient in terms of energy usage.
Muscle takes a lot of energy to build and maintain. If you weren’t using as much muscle as your body has primed and ready for action, your body will start to save energy by decreasing the nerve activity to the unneeded portion of the muscle. Simple and effective right?
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Take The Good With The Bad
This is what happens when you skip the gym for too many weeks. The body realizes that you aren’t using the muscle it is busy building and maintaining. To conserve resources, it trims the number of nerves that feed the muscle so you engage less of it but keep enough activated to meet your needs.
You remain blissfully unaware that any of this is happening until you step back into the gym and realize that you lost strength.
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The process of neuromuscular adaptation takes place over the first few weeks while on the trail. Interestingly, it also happens to be the time frame that most injuries occur on the trail – more on that later.
With the increase in physical activity (like hiking every day) the body will maximize the muscle you already have by activating the nerves to turn it on. You don’t get stronger in the traditional sense during the first month of hiking (or working out). What you have done is activate more muscle fibers that were not previously needed.
If conditions are optimal, (energy intake and physical stressors like exercise are consistent) your body will begin to build muscle to meet the needs. This happens around week 4-6 for most of us.
Back to that injury piece in the first few weeks. If you start your hike with strong, efficient muscles you are starting with greater resiliency to buffer against common hiker injuries. Give yourself 8-12 weeks of consistent workouts before you hit the trial for best results!
You can reach me firstname.lastname@example.org with any injury issues, past or present that you feel will impact your hike. Training questions are also welcome – I am happy to help!