(Original post by Saffie)
You're just assuming, and wrongly too. Resistance training will speed up your metabolism for 18 hours after your workout, cardio for only 1 hour. The more muscle you build up (and it wont make you more bulky unless you live in the gym and eat tonnes), the easier you will burn fat. Google it, the first website I got spells out my point, but there are lots.
And just to reiiterate what's on that webpage, if you're doing a cardio routine, you have to change it every 4-6 weeks to continue to give your body a workout.
Calories are also a bad way to measure how much you are eating and expending, I know it's very common and tonnes of people do it, even myself, but we shouldn't. We can't compare 300 calories from processed cookies to 300 calories from an avocado because they're totally different. The cookies will be broken down really quickly and turned to fat much quicker than the avocado... which is actually really good for you.
I do know the difference between diets... Most people follow a calorie controlled one (and understand that), but if you want to talk about the different type of calories, fats, proteins, carbs feel free, i only have to write essays about them anyway, its good practice for me.
I use the WHO (world health organisation) factors for exercise - Resistance does not increase your BMR by as much as cardio. There was a study done at my university following BMR increases pre and post exercise, it was found resistance did not cause an increase in BMR to the same extent as cardio (cardio increased it for around 2-3 hours, the resistance effect was negligible), so i don't know whereabouts those figures of 1 hour, and 18 hours are from. Its right that cardio workouts should vary, hence most gyms offer a revised programme with their instructors every month. I think it depends on how much resistance your doing as well - if your doing lot of weights, and the majority of the workout is aimed at this, is more likely to have an effect on BMR.
An anomaly however is, that BMR is raised to extremely high levels more substantially in older people when they do resistance training. (60 years+) - maybe thats the study where the 18 hours came from.
Weight control basics are about energy balance, energy in = energy out = stable weight. I'm not saying cut out the resistance and don't offer anything in its place, but doing more cardio instead of the resistance for a matter of weeks won't cause a huge influx in weight gain. Resistance is aimed more at tone and fat burning, but we're talking a matter of skipping this for weeks here, not months. I've only been doing cardio for the last 2 months, and haven't felt any fat gain, and my weight is stable. Weight loss shouldn't only be possible to those that can avoid expensive gym fees etc, doing any form of exercise will help, be it walking that extra few metres to the next bius stop, or running up and down stairs, or having a varied workout in a gym.
I much prefer cardio for building general fitness. You feel much better afterwards, its great for stamina, general walking etc. It shouldn't be put down. Which is why a mix of exercise is preferred instead of just one type of exercise.