Through repetitive usage, muscles may adaptively lengthen or shorten from a baseline resting length, and whenever there is such a change in length it is a change more in the fascia than the contractile cells


👉🏼Remember that muscle tissue is 50-60% fascia. Essentially it is the fascia that has lengthened or shortened. 

So when you’re looking to correct muscular imbalances, it is important to understand the two different functional categories of muscles


Just as muscles are able to adapt to different working length, they are also able to change their tonic-phasic tendency


In other words, balance of fast twitch and slow twitch muscles can be modified through usage to a certain extent

. 🔸TONIC muscles
Have a postural, maintaining or stabilizing function. Predominantly slow twitch, aerobic and can usually work for longer periods at long intensity without tiring.

An example of this is your jaw muscles. They spend all day fighting the pull of gravity to keep your jaw close, yet you don’t ever really feel their exertion


😅Tonic muscles work at a subconscious level, beneath our everyday awareness, and are continuously making minute adjustments to our posture, even when we are stationary. 

They maintain our upright stance within gravity and stabilize distal parts of the body


🔸PHASIC muscles 

Mainly fast twitch, aerobic and tend to tire after 💥 explosive use. 

They operate at a conscious level and respond whenever we decide to perform a movement

. 😩When there is MUSCULAR IMBALANCES, phasic muscles are obliged to do the work of tonic muscles, and vice versa!! (Like in the picture on the left)


When asked to perform work that they weren’t designed to do, abnormal tissue tension builds up and this leads to fatigue and inflammation – overuse injuries


So whenever you’re looking to fix imbalances in your system, it is not enough to only know what’s “tight”. 🕵🏼You should look also at what type of muscle you’re dealing with because that will change your overall treatment strategy


Posted on August 14, 2017, in Uncategorized. Bookmark the permalink. Leave a comment.

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