HIIT and weights are anaerobic activity,<\/a> which means your body uses glycogen (carbs) as the main fuel source, not fat.<\/p>\n\n\n\n Cardio is an aerobic activity, which means your body uses glycogen (carbs) and fat as the main fuel source. When you do cardio your body gets into the fat-burning zone.<\/p>\n\n\n\n Note that HIIT and weights typically do not burn fat.<\/i><\/p>\n\n\n\n CARDIO (longer duration steady state exercise) \u2013> AEROBIC\u2013> BURNS FAT<\/b><\/p>\n\n\n\n HIIT (short bursts of high-intensity exercise) \u2013> ANAEROBIC\u2013> BURNS GLYCOGEN<\/b><\/p>\n\n\n\n HIIT is great because it increases your general cardiovascular fitness and your anaerobic threshold. This means that during exercise your body will remain in the aerobic (fat-burning) zone for longer, before switching to the anaerobic pathway.<\/p>\n\n\n\n The result? You can exercise for longer and at a higher intensity and still burn fat.<\/p>\n\n\n\n The best fat-burning HIIT workout exercise is interval running. It is similar to sprinting but they are not quite the same. Let me explain :)<\/p>\n\n\n\n If you are sprinting for 15-30 seconds at your absolute fastest speed, with a 30-second rest, your body is using the anaerobic pathway and is predominantly glycogen. <\/span><\/p>\n\n\n\n Sprinting<\/a> is a great workout. It engages your muscles more and focuses on muscular power. So you\u2019re likely to build more muscles with sprinting than with just steady-state running.<\/p>\n\n\n\n If you don\u2019t mind a more muscular look, then this is probably a great style of workout for you. But if you prefer a more lean and slim look, it might be best to avoid this type of training and focus on interval running instead.<\/p>\n\n\n\n If you are running at a fast but not maximum speed for 90 seconds to 2 minutes, your body will most likely remain in the aerobic zone for the majority of the time. This means you’ll continue to burn fat.<\/p>\n\n\n\n The fitter you are, the longer your body will remain in the aerobic (fat burning) zone before switching to anaerobic.<\/p>\n\n\n\n The result? You’ll burn more fat!<\/p>\n\n\n Interval running is the best type of HIIT for fat-burning and achieving a skinny legs for me :) I started to use this technique a couple of years ago when I was training for a triathlon.<\/p>\n\n\n\n I used fast-paced interval runs (not a full-on sprint) to help me develop my cardio fitness faster. And it definitely helped with my cardio fitness, as I expected. But I also noticed something else.<\/p>\n\n\n\n You see, I\u2019m a mesomorph body type and I can build muscle fairly quickly, especially on my legs. And interval running actually helped me lean out my legs. You can read my blog where I talked about how Cardio can help in getting those skinny legs<\/a> :) <\/p>\n\n\n\n If your goal is to get slim and lean legs without bulkiness and you want to achieve it a bit faster, interval running could work very well for you.\u00a0<\/span><\/p>\n\n\n\n This type of workout will help you burn a LOT of calories and is great if you want to challenge yourself.<\/p>\n\n\n\n But there are some things you should take into consideration:<\/p>\n\n\n\n Interval running may not be the best choice for endomorphs. It may cause their legs to bulk up. <\/p>\n\n\n\nSO WHY DO WE STILL NEED TO DO HIIT THEN?<\/strong><\/h2>\n\n\n\n
HOW TO DO HIIT EFFECTIVELY FOR FAT BURNING<\/strong><\/h2>\n\n\n\n
SPRINTING<\/strong><\/h3>\n\n\n\n
INTERVAL RUNNING<\/strong><\/h3>\n\n\n\n
![\"fat](\"https:\/\/www.rachaelattard.com\/wp-content\/uploads\/2024\/02\/INTERVAL-RUNNING-1-1024x538.jpg\")
<\/figure><\/div>\n\n\nHOW TO GET LEAN LEGS BY USING HIIT – FAT BURNING HIIT<\/b><\/h2>\n\n\n\n
SHOULD I TRY INTERVAL RUNNING?<\/strong><\/h3>\n\n\n\n
YOUR BODY TYPE<\/strong><\/h4>\n\n\n\n
![\"calculator_imagev-2](\"https:\/\/www.rachaelattard.com\/wp-content\/uploads\/elementor\/thumbs\/calculator_imagev-2-1-pxcqe5jlsy7rzs8iig4mxy0azthgn20jh53c1rvdeo.png\" "\\"calculator_imagev-2")
\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t