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cardio q&a

You guys probably know by now that I am an advocate of cardio, which is unlike most other trainers that focus mostly on heavy lifting (Nothing wrong with that! It’s just not for me).

I’m always asked a lot of questions about cardio, but more specifically, the best type of cardio to lean out your legs and avoid making them bigger and musclier. So thought I would answer all your questions here! If I haven’t answered your question, please feel free to ask below in a comment and I’ll add it to the blog post! xx

DO I NEED TO WALK ON AN EMPTY STOMACH?

Not necessarily. Any walking is great and the more steps you can accumulate during the day, the better! But it is possible that you might burn a higher percentage of fat if you do your walking fasted (i.e. before breakfast).

Walking burns stored carbohydrates (stored in your muscles as glycogen) and fat. If you don’t have as much stored carbs, your body might burn more fat. Also, it will be more effective if you have eaten a low carb meal for dinner the night before.

cardio q&A

It can be beneficial to do your walking on an empty stomach, but it’s not necessary. Walking any time of the day is good!

WHAT SPEED SHOULD I WALK AND RUN?

These speeds should be used as a guide only. Speeds will also vary depending on your height (obviously taller people will be able to walk / run faster).

  • I would suggest aiming for a walking speed of 6-7km/hr or 3.7-4.3mph.
  • I would suggest aiming for a running speed of 10-12km/hr or 6.2-7.5mph.

WHAT INCLINE SHOULD I WALK / RUN AT?

I suggest zero. Walking and running is best done on a flat surface if you don’t want to bulk up your quads. Any uphill walking and running will use your quads more and can make your legs bulkier.

If you are on the treadmill, you can set your incline to 0.1% to replicate walking outside. But if you have trouble with shin splints (like me), I would keep it to 0%.

IS THERE A DIFFERENCE WALKING / RUNNING ON THE TREADMILL COMPARES TO OUTSIDE?

No, they will both have the same results. It’s just more of a personal preference.

Sometimes I prefer doing my cardio on a treadmill because I can track my speed and see if I’m improving (especially for running). But it just feels good running outside!

cardio Q&A

And I also don’t mind walking on the treadmill because I can watch a TV show on my phone as I walk ;) Another great benefit of having access to a treadmill is that you can do your cardio regardless of the weather conditions.

IS IT BETTER TO RUN SLOW OR FAST?

A lot of women tell me that run slowly for 45 minutes and are confused as to why this isn’t better than walking for 45 minutes, or running faster for 20 minutes. I’ll try to explain.

When you are jogging slowly, the action of your legs means that it is the same as running. Running does build muscle. The action of walking actually really helps to get rid of fat on your legs, not running or jogging. So slow jogging for 45 minutes means you will build muscle, without really getting rid of the excess fat that walking will. So you’re probably better off better walking.

When you are running faster, your body is burning lots of calories and you’re pushing yourself so your fitness is increasing, which is great. But jogging slowly isn’t really that challenging, and you’ll burn less calories. It may even bulk up your legs because you are overdoing the running. You’re not getting the full benefits of running if you’re just slowly jogging.

I think it’s better and more effective to either run faster or just walk. That is my preference. Slow jogging is still better than nothing though so you can do it – it’s up to you. But I don’t think it’s as effective as the other two.

If you really want to slim down your legs, I have a 3 Steps to Lean Legs Program that will help you get lean and toned legs without the bulkiness :)

I FEEL LIKE RUNNING BULKS UP MY THIGHS. IS THAT POSSIBLE?

cardio q&A

Yes this is possible. Running does build muscle (but not as much as other forms of cardio or strength training). Usually only people who are shorter or are the endomorph body type (or both) have issues with building too much muscle with running. If running is a problem for you, I would avoid it.

HIIT CARDIO – SHOULD I DO IT?

I wrote another blog post on the best type of HIIT cardio to do to avoid bulking up your legs. As I mentioned, running builds muscle and HIIT running will build even more. If you’re interested in doing HIIT cardio, please have a read of this blog post!

Whether or not you do HIIT cardio depends on your body type and to a certain extent, your fitness level.

If you are short or an endomorph body type (or both), HIIT cardio may not be the best exercise for you. It will build some muscle and with a shorter frame, more muscle may not be your goal. It could make your legs look bigger. If you know that running makes your legs bigger, then I would avoid HIIT cardio.

I mention fitness level because HIIT cardio is hard, and you need to have a good base cardio fitness first to do this exercise effectively and get the benefits. Being able to run at a medium fast pace for at least 20 minutes would be a great start. After that, I think you would be fit enough to add in some HIIT cardio.

As I mentioned above, if you have any cardio related questions, please feel free to ask in the comments section or send me a message on Instagram and I’ll add them to the blog post :) xx

74 comments on “Cardio Q&A”

  • Gyu Jin Lim says:

    Hi! I recently purchased the program and started the workout. I find it challenging to fine the time to workout twice a day so I am combining the workouts back to back. EX. Power walk 60mins and circuit training right after that.

    But on Tuesdays and thursdays it’s the running day.. so if I were to combine those, is it okay to
    Walk for 60mins and run for 20mins all at once?

    If I combine the workouts this way (all at once, no two separate workout times) does it make it less effective then spreading it apart?

    Lastly, how many times a week am I allowed to take boxing classes?

    Thank you!

    • Diana - Lean Legs Support says:

      Hi lovely!
      It’s perfectly fine if you need to combine the two workouts in one, it will be just as effective and you will still get results! :)
      You could do a boxing class once or twice a week, whenever you have more time. All the best! xx

      Love,
      Diana

  • Sutha says:

    Hi so just to confirm- walking ONLY for 60 mins everyday at speed is the best way to skinny down legs? I do find running builds muscle for me.

    • Diana - Lean Legs Support says:

      Hi lovely,
      We always recommend walking as much as you can because it’s one of the best ways to slim down your legs. You can also substitute running with extra power walking. However, walking should be combined with proper resistance training that will help you lose fat and get more toned without bulking.
      If this is what you’re looking for then I would definitely recommend giving our program a go. :) You can find out more about it here:

      Lean Legs Program

      Love,
      Diana

  • Nadein says:

    Hi there! I’m looking to get this program as I have been trying to get thin thighs for a while through cycling but am feeling more bulky for some reason. Does cycling tend to create some bulk in women? Should I stop cycling after starting your program?

    • Diana - Lean Legs Support says:

      Hi lovely,
      If you are an endomorph then yes, cycling will most likely make your legs bigger so I would avoid it completely.
      If you are a mesomorph, you may or may not be able to get away with cycling. Some mesomorphs are OK with it, while others aren’t. Either way, I would still only do it 1-2 times per week maximum because overdoing it with cycling will most likely make your legs bigger.

      You can find out more about our Lean Legs Program here:

      Lean Legs Program

      Love,
      Diana
      xx

  • Nora says:

    Hi,
    How many times per week and per day should I walk and do resistance traininig? Should I do it more than once to get faster results or will this increase my muscle mass? And,does your Lean Legs Program includes exercises to slim down arms and shoulders too?

  • Jena says:

    Im 153 cm . Walking at 3.7 mph will look like a power walk for me , so shall i reduce it to 3.5 mph if im aiming for a slimmer leg ?

    • Diana - Lean Legs Support says:

      Hi lovely,
      Feel free to decrease the walking speed if you need to. The goal is to maintain a fat burning heart rate (60-70% of your maximum heart rate) for at least 60 minutes. :) xx

      Love,
      Diana

  • Josie says:

    Hi,

    I’ve really been wanting to do the lean legs program but I’m a vegan and I don’t know what I’d do about the meal plan. Is there an option for vegans or are there substitutions included in the meal plan?
    Thank you!

    • Diana - Lean Legs Support says:

      Hi lovely,
      Yes, our Lean Legs Program also includes a full vegan meal plan with over 80 delicious recipes! :)
      You can find out more about it here.

      Love,
      Diana
      xx

  • Alison Ramsay says:

    Hi guys,
    I’m about to start your mesomorph program this week but I also do regular ice skating session. If I ice skate will this have a negative effect on the program? Can I skate instead of one of the walks or should I just do your routine with skating on top of that?

    • Diana - Lean Legs Support says:

      Hi lovely,
      That’s awesome news! :) Ice skating shouldn’t affect your results negatively, so keep going. I wouldn’t recommend skating instead of power walking, but you can definitely do it on top of your usual routine or instead of one running session if your schedule is tight.
      All the best! xx

      Love,
      Diana

  • Janie says:

    Hi there!

    Is it true that if I purchase your program and send a before and after pic after the 8 weeks is done that you get your money back?

    • Diana - Lean Legs Support says:

      Hi lovely,
      Yes, that’s correct! :) The only conditions are that you must have achieved results with the program and your progress photos must be allowed to be shared on social media. xx

      Love,
      Diana

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