Originally Answered: Is it better to use the treadmill/cross trainer every second day to allow your muscles to rest?
If you're doing all that lower body work to remove fat from your hip, legs, and butt, you're approach is all wrong and not going to accomplish what you want. Here's that story.
Don't try to control your fat with exercise. Control fat with diet. Plan your workouts around fitness goals such as excellence in a sport or occupation, strength, endurance, flexibility, systemic fitness, general health and well being, body sculpting, body awareness, coordination, poise and comportment, balance, body composition, mental acuity, educational experience, etc. It doesn't matter what exercises you do, they will all burn fat if your diet allows it. However, it does matter if you have goals. Working out is too difficult to do without success to inspire you to continue. And, without goals there is no way to measure success. Check out these fitness facts.
• If you consume fewer calories than you burn, you have to lose fat eventually. There are no exceptions to this fact.
• There are only two nonsurgical things you can do to sculpt your body and they are (1) add or lose fat and (2) add or lose muscle. Muscle can only be lost naturally through atrophy.
• A pound of fat will yield about 3500 calories (Kcal) of energy.
• An average person must run or walk about 5 miles (8 km) every day to burn one pound of fat per week BUT THEIR DIET MUST ALLOW IT.
• An average person must run or walk about 350 miles (563 km) to burn 10 pounds BUT THEIR DIET MUST ALLOW IT. If they walk 350 miles (13.4 marathons) at 3mph it will take them 117 hours or about three full 40 hour work weeks to burn 10 pounds of fat.
• If an average person consumes 500 calories per day less than they burn, they will lose about a pound a week with no extra time or physical effort required.
•Running does not burn any more fat than walking as long as the distance remains the same.
• It does not matter if a person runs or walks a given distance…they will burn the same number of calories. Calories are energy and energy expenditure is not time dependent. How fast a person runs has nothing to do with how many calories they burn. Only the distance determines the calories burned.
• There is no exercise which will remove fat from a particular place on the body. Your body (genetics) determines where you lose fat, not you nor your diet nor your exercise. Spot fat removal by diet or exercise is a myth which is why people spend so much money on liposuction.
• It is not necessary to do "cardio" to burn fat. Cardio is aerobic exercise while maintaining a heart rate of 80% of max or more which is used to maintain cardio-vascular fitness. You can burn fat in your sleep.
• Most of the calories you consume will be spent just keeping your body temperature at 98.6F.
• It doesn’t matter how hard or how long you exercise, you will not lose any fat if you eat too much. You can always eat more calories than you can burn. When it comes to burning fat, diet always trumps exercise.
• There are no supplements which will make your body burn fat. Only you can do that with diet control.
• An average natural bodybuilder who is just starting to train may gain as much as 4-8 ounces of muscle in a month. An average dieter who is burning fat will lose about a pound a week. Anyone can gain a pound in a few minutes just be drinking a pint of water.
Now, if you want to burn fat, forget all the fad diets, myths and misinformation, and just plain bad advice you've learned in the past. Here's the only fat loss plan you need and it's approved the US National Institute of Health.
Eat a diet of varied, wholesome, and high quality foods such that your daily caloric intake is about 500 calories less than your daily caloric burn while keeping your macronutrient ratios at about 55/25/20 (%calories from carbs/fats/protein) and not doing anything to defeat the foregoing plan such as taking supplements, drinking alcohol, abusing drugs, using cleanses or emetics, etc. That's it. It's that simple.
Here are the only two websites you need to do that.
If you want to "tone up", keep doing what you're doing. Intense aerobic training does not require recovery time equivalent to anaerobic (strength) training. You're skeletal muscles will adapt to long periods of work with no problem and your cardiac muscle will also. The way you will know if you are over-training is you'll feel more fatigue and your workouts will become increasingly difficult. Be sure you're diet is proper and healthful because a deficient diet will yield the same symptoms.
The short answer to your question is "NO".
Good luck and good health!!