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How To Slim Down Muscular Thighs – Get Toned Legs Without Bulk

By Rachael Attard, Updated Jul 7, 2021
How to slim down muscular thighs

Last updated on May 8th, 2020 3:20 PM

It’s unbelievable how many girls are asking me how to slim down muscular thighs!

If I have to pick the most popular question I am asked on my weekly Instagram Q & A, it would definitely be that!

And I understand why this is such a popular question.

I also used to struggle with getting the answer to this myself. I spent 3 years figuring out how to exercise to keep my legs slim and thin… without gaining too much muscle in the process.

Who knew it would be so hard to get this right?

Unfortunately, women tend to store most of their body fat in their hips and thighs.

So it’s no wonder a lot us feel like no matter what we do, we just can’t seem to lean out legs and make our thighs smaller. 

And, since the majority of personal trainers and fitness gurus seem to always push women to lift heavy (or do tons of squats and leg work)…it’s actually no surprise why I see girls constantly complaining about their thighs.

More and more women are coming to me explaining that they feel like their thighs got too bulky for their own liking.

I’ve already written a detailed guide on how to get lean and toned without adding too much muscle overall, but since I know how many of you are struggling with this, I want to focus specifically on how to get smaller thighs in this blog post.


I know most people go to the gym to build muscle, but many women actually have issues with getting overly muscular legs when they exercise. 

Some girls have even told me that their legs get bigger in size with running, barre, yoga and other exercises that you wouldn’t expect to bulk up your thighs. 

So, be careful and track your body’s response to different exercises as it is very individual.

Let me get something straight- there’s absolutely nothing wrong with having strong, muscular thighs.

But, some women prefer to look more slim and toned and they should not be judged for it or told that that’s not a look to aspire to.


Everyone’s idea of “bulky” is different – I cannot stress this enough. This is something I believe every personal trainer should be aware of.

For some women, having just a little bit of muscle in their thighs might be too much, and for others, it might be too little as their goals are different.

For me personally, when I do weights and HIIT, my arms and stomach tend to slim down but my legs get too muscular for my liking.

I don’t have too many examples of photos of me when I’m like this (I didn’t like taking pictures of myself at the time), but here is one so you can get an idea.

how to slim muscular thighs

So what you should do if you want to get skinny thighs without building muscle?

There are 3 steps you should follow to get slim and toned legs.


  1. LEARN YOUR BODY TYPE – Your body type plays a massive role in how you tend to build muscle and lose weight and some body types are more likely to bulk up. You need to know your body type so you can learn how to train and eat accordingly.
  2. DO THE RIGHT TYPE OF CARDIO – Do more low to moderate-intensity cardio such as fasted walking. This type of cardio is the key to getting slim legs.
  3. EAT AT A SLIGHT CALORIE DEFICIT AND FOLLOW A LOW CARB DIET – If you want to reduce muscle and body fat, you should stay in a slight calorie deficit and eat a low carb diet.

Let’s cover each step in more detail.


how to slim muscular legs without building muscle - learn body type
All three body types (endomorph, mesomorph, and ectomorph) respond to training and diet differently.

Knowing your body type is super important as some body types tend to bulk up more easily in their legs (and in general) than others, i.e. ectomorphs versus endomorphs.

There are three main body types and they all lose weight and build muscle differently. 

I’ll briefly cover all three of the female body types, and also link to the articles that explain your body type in detail.


Ectomorphs are usually naturally slim (like Victoria’s Secret models) and they find it difficult to build muscle

If you are an ectomorph body type, you probably already have naturally thinner legs. So, your goal here is to maintain (or perhaps lose a bit of stubborn lower body fat) while building lean muscle. This way your leg will get tone and definition and you’ll avoid the skinny fat look

To find out more about the ectomorph body type, read this blog post on how to slim muscular thighs if you are an ectomorph.


Mesomorphs can be quite athletic and respond quickly to exercise, which means they build muscles easily. 

They can lose weight very fast, but can also gain weight quickly too. Usually, they are of average size.

If you are a mesomorph, overdoing workouts like squats and lunges can easily result in bulky legs. So, your goal here is to reduce body fat percentage and avoid exercises that will bulk up your legs in the process.

For more detailed info on mesomorphs, I’ve written an article on how to get skinny legs without building muscle for mesomorphs.


Endomorphs naturally have a strong build and larger frame. They can build muscle very quickly and it’s slightly harder for them to lose weight. But, it’s not impossible! 

If you are an endomorph body type, your goal is to really focus on reducing overall body fat and to completely avoid any workouts that may cause you to bulk up.

To learn more about the endomorph body type, read this blog post on how to slim muscular thighs for endomorphs.

If you are not sure what is your body type, I have created a free body type quiz which will help you determine your body type in just 2 minutes.

Now that you know your body type and have a general idea on what to do and not to do, let’s go to the next step.



Ever noticed the difference between marathon runner legs and a cyclist or sprinter’s legs? There is a reason why.

Marathon runners have usually skinny legs because they do long duration steady–state cardio, as opposed to high-intensity sprints and cycling.

When you do long-distance running, your body is using slow-twitch muscles (the ones we refer to as long and lean) and is using fat (and glucose / carbs) as a source of energy. 

I would run at a medium-fast pace and aim for 5kms for at least 30-45 minutes. But, longer is better if you’re trying to slim down muscle (ideally around an hour).

For speed, I would recommend somewhere between 9-12 km/hr. You should be able to maintain a conversation on your optimal speed.

And always make sure you’re running on a flat surface. Any uphill running will use your quads more and will contribute to bulkiness.

Also, running long distance is much more effective at slimming down your legs than the cross trainer/elliptical.

I should also mention that if you are very short and are the endomorph body type, your legs may actually get bigger with running.

If this is a problem for you, I would focus on walking.


how to slim down muscular thighs with power walking
The right type of cardio done first thing in the morning (aka fasted cardio) will help slim down your muscular legs much faster.

Power walking is the best exercise for slimming down your legs and still burns a surprising number of calories, so don’t feel disheartened if all you can do is walk.

The main reason that power walking is so great is that it actually burns FAT as the primary source of energy. So yes, walking will help you burn more fat.

If you want more details or have more questions about cardio, read my Q&A Cardio Post.



When you do cardio, your body will burn stored glycogen (carbohydrates) first, and then fat, followed by protein (muscle).

If you do cardio before you eat in the morning, you will have less stored glycogen, and your body will, therefore, burn more fat and muscle.

Less fat and less muscle size equals slimmer legs. 

But for this to work, you need to eat low carb (try not to eat carbs for dinner the night before so your glycogen levels are already low), and you need to do cardio for a fairly long period of time (over 60-90 minutes).

I have written a much more detailed blog post on fasted cardio, so have a read of this if you’re interested.



Decreasing your calorie intake will help you lose weight overall and also muscle. Muscles are a metabolically active tissue, so they require lots of calories to maintain.

If you reduce your calories, your body will not be able to sustain your muscle size, and they will atrophy (meaning they will decrease in size).

To work out how many calories you should be eating, read this blog post on how to calculate your daily calorie intake.


diet for slimming muscular thighs

If you eat high fat, moderate to low protein and low carb, while staying at a slight calorie deficit, your body will use fat and protein (muscle) for energy, rather than carbohydrates. 

This will help you decrease your muscle size much quicker.

Focus on getting your energy primarily from fat, and do not overdo the protein intake as well.

If you follow these 3 steps, your leg muscles will start to decrease. However, it is also important to know what NOT to do.



Avoid any kind of exercise that causes pump in your quads and hamstrings- to help lean down your legs faster.

As long as you are lifting heavy or doing exercises that put a lot of strain on your quads and hamstrings, you won’t lose the leg muscle. You will still continue to build or maintain leg muscle, even if you are doing cardio and eating at a calorie deficit.

Use it or lose it. It’s really that simple.

Even if you’re doing light weight and high rep, you still won’t lose the muscle. You won’t necessarily build muscle, but you will maintain the muscle that you currently have.

Therefore, I recommend avoiding anything you’re doing that uses your legs heavily, including the traditional squats, deadlifts, burpees, and leg weighted machines. Just avoid “leg days” in general.

I would also stay away from workouts such as CrossFit and HIIT routines that have lots of squats, burpees and lunges.


As I mentioned, some women experience bulky legs when they do running, barre, or even yoga.

If you notice your legs increasing in size with a particular exercise, don’t do it! It is very individual, and you need to do what works best for you.

Again, this is the advice for girls who want to drastically reduce muscles in their legs.

If you’re happy with the size of your thighs or you’re not really bothered by it, please, by all means, do all the workouts you enjoy.

On my blog, I do have some HIIT exercises that won’t cause you to bulk up.

However, if you are an endomorph, if you are very short, or very very sensitive to building muscles in your thighs, these exercises still might cause you to build too much muscle for your liking. So, I would do these with caution.

If they work for you, that’s great! If not, don’t do them.


Cardio is good for slimming down your legs, but not if you’re sprinting.

Again, think of sprinters vs marathon runners legs. Sprinting engages fast-twitch muscles responsible for fast bursts of energy, especially in your quads. 

Your muscles will adapt to the size they are needed for an often performed activity. It’s that simple.

So, make sure your cardio is always done steady-state to lose muscle from your legs faster. And again, make sure it’s on a flat surface (no hills or stair runs!).


how to slim leg muscle and train without bulking up

There are still lots of different types of exercises and resistance training workouts that you can do to tone up, without targeting your quads and hamstrings and making them bigger.

ALL of the workouts on my blog are designed to help you tone up without getting bulky, so I would highly recommend giving them a try! :)

  • For the lower body, my favourite exercises are pilates-style moves and exercises that focus on toning up your butt, rather than increasing the size of your thighs.
  • For the upper body, I absolutely love swimming and boxing for toning up (as well as burning LOTS of calories) without bulking up.

    When I lift weights for my upper body, and especially when I do pull-ups and overhead pressing, my back and shoulders get really wide. However, if you still want to do weights, read my blog post on how to do it without getting bulky.

    Boxing tones up my shoulders and arms without getting broad. Swimming is also great, but just be careful not to overdo it, or your back might get broad.

In the video below, you can find a full-length workout for a whole body that is designed to get you toned, but not bulky.


And it will definitely NOT bulk up your legs, but it is focused on slimming down your thighs.


So to summarize, if you want to make your muscular thighs smaller, here’s what you should do:

  • Learn your body type so you can understand the best exercises and diet for you.
  • Do more long-distance running on a flat surface.
  • Do power walking – This type of low-intensity cardio burns fat and is the best exercise for slimming down legs.
  • Do fasted cardio – this will help reduce your muscle size and body fat percentage quicker.
  • Follow a low carb diet and stay at a slight calorie deficit so your body can burn more fat and protein (muscle).
  • Avoid exercises that target your quads specifically – lunges, burpees, squats, etc.
  • Avoid exercises that make you bulk up even if they aren’t supposed to. (Some women have told me they bulked up from yoga.)
  • Avoid sprinting and stair runs – make sure you run and walk at a steady-state and on a flat surface.


If you are looking for a long term solution, I’ve created a 3 Steps to Lean Legs Program which focuses on helping you get a lean and toned body (especially legs, as this is a trouble area for a lot of women). 

The 3 Steps to Lean Legs Program includes cardio, a complete 8-week meal plan and the style of resistance training that I have mentioned in this blog post. 

Also, the resistance training part of my program now has FULL-LENGTH videos that you can follow from warm-up to cool down.

And as always, if you have any questions, please feel free to ask! 

Love Rachael xx

Picture of Rachael

Rachael is an Australian born certified personal trainer and nutritionist who holds a Bachelor degree in Science.

After struggling for years to find an exercise and diet program that is tailored to women striving for lean and toned body with no bulk she designed her Lean Legs Program. This program is tailored to each body type and focused on helping women get toned but feminine bodies, without getting bulky.

Her mission is to empower women and help them stay in shape in a healthy and balanced way.

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269 comments on “How To Slim Down Muscular Thighs – Get Toned Legs Without Bulk”

    Awa says:

    will i lose my butt ? how to maintain it while losing muscle and fat in my thighs ?

      Lean Legs Support says:

      Hi lovely,

      Spot reducing isn’t really possible so in the process of slimming down, losing fat in other areas of your body is unavoidable. But you can still keep them toned and perky by trying out workouts that are focused on your glutes. :)

    Dana says:

    Hi there! For someone who is in between a Mesomorph and Ectomorph build (75% Mesomorph, 25% Ectomorph according to other body type quizzes), should I stick primarily to the nutrition and fitness guidelines for Mesomorphs? I have more of a natural hourglass figure and I’d love to slim down my arms and legs without shedding too much weight.

      Lean Legs Support says:

      Hi lovely,

      Each body type has a different ideal macros breakdown. If you’re a mix of both then it would be best to follow the mesomorph guidelines to achieve the best and fastest results. :)

    Angela says:

    Hi there :)

    I’m a mesomorph, and a few weeks ago, I decided to change my workout routine from power walking to running. I started running 5km in 30 min, 3 times per week. However, my thighs have bulked up enormously, and I can’t fit into some of my pants anymore. I read on other fitness sites that bulking up initially is normal when you start running and that my legs should become slimmer over time. I was wondering if this is true or if I should stop running altogether? I’m extremely petite, so I am very concerned about having bulky legs. Walking seems to be the best type of cardio for my mesomorph body + short height, but running is much more efficient in terms of time. I would really appreciate any advice you may have!

      Lean Legs Support says:

      Hi lovely,

      Running is great cardio that can burn a huge number of calories. However, it also engages your quads a lot and can make you gain unwanted bulkiness if you overdo it. I would advise that you only run at a maximum of 20 mins a day, 2-3x a week. If your goal is to slim down your legs, it would be best to stick to light-intensity cardio like power walking. Try to aim for at least 10,000 steps a day and make sure that you do it on a flat surface. :)

      I hope that helps. xx


    Rani Leijssen says:

    Hi there :)

    I have been bulking from December to mid April. After that I started cutting. However, I’m noticing that my thighs look quite big/too muscular to my liking. My actual goal is to be lean and toned while having longer-looking legs instead of bulky ones.

    During the bulk I ate 2300cals at the maximum, and currently I am eating 1600 cals. (Height 1.73m, weight 63.9 kg)

    While I’m planning to adjust my training and do more cardio and body or low weight trainings, I’m stuck whether I should continue to decrease my calories even further or if I should bring up my calories again to around maintenance. (Especially because I also want to work on making my abs more visible)

    I’m hoping to achieve my lean legs in max 2 months.

    Any tips would be so much appreciated!!

      Lean Legs Support says:

      Hi lovely,

      Thanks for reaching out!

      I completely understand how you feel and I’ll do my best to help! :)

      If your goal is to slim down your legs, there are 3 steps you should follow – do the right type of cardio, do bodyweight resistance training and adjust your diet for weight loss.
      I have a very detailed blog post that will help you learn how to slim down your legs so please go give it a read

      It will definitely help! :)

      Also, you can check out our 3 Steps to Lean Legs Program. It was designed specifically for girls who are struggling to slim down their legs. :)

      If you have any other questions, feel free to email us at info@rachaelattard.com! xx

    Melissa says:

    Hi! Your blog post about the skinny fat body type really helped me and made me start going to the gym for resistance training. I had to stop though due to a covid spike and i’m just doing home workouts but really not feeling like it’s going anywhere. I do prefer the home workout setting but i’m in need of proper guidance. I would like to ask if there is a difference in the program for those who want to slim down muscular thighs and those who want to lose the fat but keep the muscle? I’ve lost a lot of muscle mass from extreme dieting, and i don’t want to lose what little gains i’ve made from my first 6 weeks of resistance training😅😅😅.

    Alex says:

    Hi! I’ve known about Rachael’s program for a while and was considering it once before because my thighs have always been an issue for me, yet I ended up finding a coach last year and started focusing on her plan. I am an endomorph and have a good amount of muscle definition on both my arms and legs now, however, I am finding that my legs look bulkier than I want them to be and they aren’t changing shape. My current diet is a carb cycling one, which I feel has been the best for me since its given me the freedom to not feel trapped and not completely avoid carbs. At the moment my training program follows my diet, so if I eat high carb that is a weight training day (3-4x a week, which involves both upper body days and just leg days), if it’s a low carb day, then that’s fasted cardio or HIIT. On an extra low carb day I eat carbs between 20-25% range, which is a rest day for me.

    Do you think this is what’s causing my legs to stay bulky, the carb cycling, other than my current workout plan?

    Thank you! Alx:)

      Lean Legs Support says:

      Hi lovely,

      Because the endomorph body type does better on a low carbohydrate diet, we recommend this macros breakdown: 20-25% carbohydrates, 45-50% fats, and 30% protein. If your legs get bulky easily and you want to avoid building more muscle, the best exercises to avoid are those where you can feel your quads burning. This includes squats, deadlifts, lunges, and overdoing it on the HIIT exercises including burpees, jump lunges, jump squats, and box jumps. Here are some general guidelines for the endomorph body type. :)

      If you have more questions, feel free to email us at info@rachaelattard.com


    Megan says:

    Hi there! I read through what you have recommended and would love to try the 3 step process but I am now pregnant. I am early in first trimester with my 3rd baby. I’ve been able to get back down to normal weight of 115 but I swear about 10lbs rests in just my thighs and I HATE it. I want leaner thighs so they don’t rub and no crazy flubber. I obviously cannot do the fasting before cardio and running kills my knee….any recommendations with these limits would be greatly appreciated!

      Lean Legs Support says:

      Hi lovely,

      The 3 Steps To Lean Legs Program hasn’t been tailored for pregnant women. I’ve had women say they’ve done the program while pregnant with some modifications. Most of the workouts are low impact, so they should be safe to do during the first trimester. However, I would recommend checking with your doctor first so you can be 100% safe. I wish you all the best! Xx

      If you have more questions, feel free to reach out to us at info@rachaelattard.com


    Annie says:

    I have inadvertently become extremely muscular through a workout program designed by a personal trainer. I was lifting heavy weights five times a week. I now look a bit like an amateur bodybuilder, which was not at all my intention. On a recent body composition test done at a gym, my body fat is around 17% and all areas are around 120% muscled. Based on your quiz, I am an endomorph and I am 164cm, 57kg. I’ve always wanted slim legs and hips, and the weight training over the past two years made me toned but too bulky. I am wondering if I should focus solely on power walking as much as possible for a couple months and take a break from all resistance training since I have muscle to lose, or if I should do low weight resistance weight training along with it even though I want to lose muscle. How many times a week would you suggest considering my state at the moment (over-muscled)?
    Thanks very much!!

      Len - Lean Legs Support says:

      Hi lovely,

      Thanks for reaching out! <3

      If your legs get bulky easily and you want to avoid building more muscle, you should first stop the exercises that you've been doing. The best exercises to avoid are those where you can feel your quads burning. This includes squats, deadlifts, lunges, and overdoing it on the HIIT exercises including burpees, jump lunges, jump squats, and box jumps.

      Power walking will definitely help you lean down those muscles so we recommend doing it 5-6x a week. Try to aim for at least 10,000 steps a day and make sure that you do it on a flat surface. Incorporating light-resistance workouts into your routine will also be a great help. Lastly, you need to adjust your diet for weight loss, you can do this by eating at a calorie deficit and following your ideal daily calorie intake and macros. :)

      Here are some general guidelines on the right type of workouts and diet for your body type.

      Lastly, feel free to check out Rachael’s 3 Steps To Lean Legs Program. This plan was made to not only lose fat but also slim down bulky muscle and achieve a more feminine look. xx

      If you have more questions, you can email us at info@rachaelattard.com


    Vishali says:

    Hi, I used to be very slim but I ate too much and had a sedentary lifestyle which made me gain a lot of weight! :( If I follow the correct diet and workout regularly, will I be able to become as lean as I was before. Please let me know, thank you!

      Len - Lean Legs Support says:

      Hi lovely,

      If your goal is to slim down not just your legs but also your whole body, there are 3 steps you should follow – do the right type of cardio, do bodyweight resistance training, and adjust your diet for weight loss.
      I have a very detailed blog post that will help you learn how to slim down your legs so please go give it a read

      It will definitely help! :)

      Feel free to reach out to us at info@rachaelattard.com


    Annie says:

    Wonderful article and very helpful! I’m one of those struggling to slim down my muscular thighs. Question on power walking — can I do this indoor (without any equipment like treadmill) by following ‘walk from home’/ ‘power walk at home’ YouTube videos? Many thanks!

      Len - Lean Legs Support says:

      Hey lovely,

      I don’t really suggest walking at home because from the experience of our customers, it just isn’t effective as walking on a treadmill or outside.

      If you can’t get out, you can temporarily substitute it for these two in-door cardio videos:



      Again, keep in mind that it’s not as effective as walking is but it will be way better to practice these than skip your daily cardio routine. <3


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