You’ve probably felt your muscles shake at some point during a hard workout. At first, it can be alarming — you’re literally vibrating like a bell that’s ringing for you to halt whatever it is that you’re doing.
You might wonder: Is it normal for my muscles to momentarily quiver out of control while holding this plank? Is my infrastructure in danger of collapse?
The short answer is no, you’re good.
While you may crumple to the mat, you’re likely not destroying your foundation but rather reinforcing it. That little muscle quake is generally a good sign that you’re pushing yourself and getting stronger for it.
NEW ACTIVITY
“If somebody is doing a challenging new activity — say a weighted split squat — it’s not uncommon to see them shake,” explains Trevor Rappa, a doctor of physical therapy and co-founder of Resilient Performance Physical Therapy in NYC. “The reason behind that is our brains have these motor patterns that execute on command, like walking. When we introduce something new, the brain needs to figure out how to do it. Some muscles may not know how to work in conjunction with others to perform something new, which can cause some of the shakeup.”
This doesn’t just apply to people who are upping the ante in their fitness routine. If you’ve taken a hiatus from the gym (long or short), reintroducing exercise to the body can be jarring. “For someone who hasn’t trained in a while, exercise really disturbs their homeostasis,” Rappa says. “Any disruption to that baseline is going to be a shock to the system, so it’s not abnormal to have that shaking response.”
FATIGUE
Another factor that may add an extra twitch (or 20) is fatigue. If you’re on your third set of minute-long planks, it makes sense that you’d be feeling wobbly. “When the muscles get really tired and heavy that’s often due to an accumulation of hydrogen ions, making muscles more acidic,” Rappa says. “That sends signals to the brain that the muscles are in pain or have a lot of discomfort, which then prompts the brain to tell the body to stop.”
The good news: Your body’s involuntary mid-exercise convulsions will eventually subside as you grow accustomed to the moves and develop your strength and conditioning, says trainer Noam Tamir, founder and program director of TS Fitness studio in Manhattan. In other words, getting in shape may delay the onset of this fatigue. “More conditioned people usually have better nerve recruitment so they don’t lose control as quickly,” Tamir says.
BUT KNOW WHEN TO BACK OFF
There is a balance, however, of knowing when to push through versus when to hold back, like when you feel the tremors rising. “Shaking isn’t dangerous, but it could be if you are holding weights that you can’t control and put force on muscles and joints that have lost their power,” Tamir warns.
Rappa agrees but emphasizes that context matters. For example, if you’re feeling unstable doing lunges, adding a light weight might help you feel more grounded and allow you to regain balance, he says. However, if the weight is too heavy, it could throw you off balance, which could lead to injury.
AND REMEMBER TO BREATHE
One way to safely work through muscle quakes is to keep breathing. Holding your breath while planking will only add stress to the body and make you shake more, Rappa says. Instead you want to encourage the body to relax, which you can do by exhaling and inhaling at somewhat of a normal rhythm. “Reset your breathing cycling, and you may stop shaking,” he says.
After your workout, make sure to replenish your glycogen stores with muscle-building foods (such as these tasty options) within the recovery window of 30 minutes after completing the activity. Adequate post-workout recovery will help you come back fresher and stronger next time.
15 Responses
I’m just noticing the stock photos of supremely tall and thin models who have completely unrealistic body types…. Can you give us someone who has an average body size to inspire us?
i mean… that’s what fit people look like? fitness is not “completely unrealistic”, it’s what most people are aspiring to when they start working out. but at the same time, i agree. nobody starts going to the gym looking like the models in these articles. it would be nice to see somebody who isn’t at their peak on the cover.
Agree, totally agree.
she said getting taller is unrealistic — models may work very hard at their appearance, but they are models because of the bodies they were born with. If you think fit means every woman should be over 5′ 7″ have hips like a boy then you are mistaken
quote from the author – “Some people are born to run. Others are born with big hips. I’ve forever believed that the width of my curvy Latina body is the reason my knees always kill after a short or long run” not all people can have boy hips like female fitness models
You can inspire to just be a shorter version of those models. I am, and I’m living proof its not only possible, it is actually fun. I look at it as taking control 🙂
Like saying show me a person who own a business that’s just starting? You wanna get advice from someone successful and then pick brain on what it took to get there.
the model could be thin from heroin and cigarettes – the advice comes from the author
there are not a lot of full length pictures of the author She seems petite with hips that are definitely not similar to those of a young boy like many models have
I think point of being in shape is working out. Like finding out how someonr rich became rich. You don’t want advice from the drug dealer you want it from the legit business man
“getting there” for fitness models and models in general means being born with the right genes — quote from author “Some people are born to run. Others are born with big hips. I’ve forever believed that the width of my curvy Latina body is the reason my knees always kill after a short or long run” Some women will never have the body of Cameron Diaz, who looks like a boy, with two exceptions
Won’t dispute the genetic predisposition and genes being factored in but that’s different topic. Looking like a boy doesn’t mean fit. Fit means working out and eating right. From a pure biologic standpoint actors can go up and down in weight because of how simple are complex bodies are. Over eat gain weight. Under eat lose weight. The brain determines between water, fat, muscle, bone which to get rid of. Doing resistance based training and under eating by 300 cals youll lose 3-4lbs in a month. Fat being lost evenly. Doing squats keeps butt:-). Alot of other small details like for every pound lost is 4lbs off knees etc etc. Don’t sell your self short and get comfortable in slow progress. Turn up volume and push till your uncomfortable and be your best version of self. Also big hips are kryptonite
Models are chosen for their good looks — even the models in the poop medicine and skin disorder commercials are beautiful. Remember it is their job.
Our job is to compare ourselves to ourselves — are we improving, that is getting healthier
you can talk to some at the gym or park
quote from the author –“Some people are born to run. Others are born with big hips. I’ve forever believed that the width of my curvy Latina body is the reason my knees always kill after a short or long run”
Good article. Thanks for addressing such an issue that many get concernd about. Oh and your stick pics look fine, I just laugh about these negative people who look for flaws in everything.