Wait, so you're saying you're trying to lose more fat on your legs?
If that's the case, your philosophy and approach is very wrong.
1. Spot reduction is impossible. Give it up. get it out of your head. IT DOESN'T HAPPEN! You must lose fat from all over your body, theres no way to target it.
2. If you want your legs to look more toned or muscular, you must work on gaining a bit of mass down there, which leads to point number three...
3. LONG DISTANCE RUNNING IS LIKELY TO REDUCE THE SIZE OF YOUR MUSCLES! This prolonged endurance activity results in a high rate of catabolic activity in your leg muscles. That's why many long distance runners are very narrow and sprint runners have thick legs. They have very different ways of training, and training for distance will cause the body to lose excess muscle to increase the efficiency of such activity.
Thus, what you need to be doing is cutting back on the distance above all else. Choose leg exercises that will up the intensity and give you a pump in your legs, leading to muscle growth and toning. Shorter duration, higher intensity. Interval training is very good for this. Weight lifting or targeted bodyweight exercises will work the muscles for growth. Bicycling can work for that as well.
More importantly, make sure you eat plenty of protein to gain mass. Overall breakdown of muscle results from too few calories and protein for muscle repair and growth. To keep losing that fat, keep your calories low, but not too extreme. Try and work with a 1000 calorie daily deficit at the most, though you can really go lower. The numbers all depend on your body and its size and metabolic rate, so look up how to calculate all that if you don't already know. You can only lose fat under a calorie deficit, no other way.
To maintaine your muscle mass (particularly in the legs) you MUST strength train to signal to your body that it needs that much muscle and cant sacrifice it for fuel (to put it in very simple terms). Strength training at least 2 times a week should keep you from losing any muscle when coupled with proper protein consumption. To GAIN muscle is difficult when working to lose fat, since the process is really pushed by having a surplus of calories. You don't really need a surplus to tone your muscles, but overall gains in mass go much more smoothly with a surplus. To fascilitate this, it's good to stagger your mass gaining and fat losing routines. This is all a personal preference, so I suggest you give it lots of research to find what'll work best for you.
What I do is have 3 low calories days of some sort, with two strength/mass gaining workouts a week where I make sure to eat a calorie surplus, and a recovery day afterwords, also with a surplus. The net weekly calorie loss is still over a pound. The high calorie days fascilitate in helping your muscles recover from the strenuous activity, allowing them to grow. It's really better to have more recovery time if you want to maximize results, so depending on how fast you want to lose fat, you could try going on a low calorie week, high calorie strength training week sort of schedule, alternating between the two.
Anyway, I hope all of this helps. I HIGHLY suggest going to this website to read up on most of these concepts.
Fitness Tips To Get Lean and Toned, Not Bulky! | Fitness Black Book
Good luck
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