You will likely gain muscle mass and may begin to lose some fat mass. Muscle weighs more than fat, but it also burns more calories. Closely tracking your weight during this window can be confusing—your clothes may feel looser while the number on the scale stays the same or even goes up a few pounds.
Muscle is denser than fat.
While one pound of fat weighs the same as one pound of muscle, muscle occupies about 18 percent less space. In addition, muscle burns calories while fat stores them. So, if your weight isn't decreasing but your clothes are starting to fit more loosely, you may be building muscle.
You'd think that going on a strict diet and exercise regimen would help you drop pounds quickly, but most people actually gain weight at first. If this has happened to you, don't give up on your goals just yet.
As you work out, you are building lean muscle which weighs exactly the same as fat but is leaner. if your clothes are looser but the scale is the same, this is because of the lean muscle you have built.
“When you start exercising, your muscles start gobbling up fuel called glycogen,” says Krista Scott-Dixon, Ph. D., Director, Headspace Adjustment Bureau, Precision Nutrition. Since glycogen stores water, you could gain up to 10 pounds in water weight alone, says Scott-Dixon.
Cardio can't directly cause you to gain weight or fat. According to Mayoclinic, how you eat and drink in addition to your physical activity level are things that ultimately determine your weight. This is also impacted by your metabolism — the process by which your body converts what you eat and drink into energy.
Gaining Weight Working Out from Strength Training
If you start to change your body composition with your workouts — by building more dense muscle mass and decreasing your body fat — your scale weight may increase, while your body fat percentage may decrease.
According to Noah Abbott, a CrossFit coach in Brooklyn, prolonged, steady-rate cardio can deplete our body's Triiodothyronine, or T3 hormone. This hormone is responsible for metabolism, and a depletion of this hormone can cause the body to go into a mode where it stores and gains more fat than usual.
Your Metabolism Will Slow Down to Store Fat
The more you work out or manage your calorie intake to lose weight, the more your metabolism wants to compensate by slowing down to maintain your current weight, this is called metabolic compensation. It kicks in to preserve and store fat for future energy.
The best types of cardio to aid in weight loss are either low-impact, low intensity cardio like rowing, incline walking, and biking, or HIIT workouts implemented in small doses such as kickboxing, interval training, and weight training.
It's true that cardio is good for weight loss, but you shouldn't do cardio every day to lose weight. That's because daily cardio is not only boring, which makes it hard to do consistently, but it's also inefficient compared with more diverse workout routines that include strength training.
This is because when you are stressed, cortisol levels in the body rise, resulting in storage of fat around the belly area. Another reason responsible for a stubborn belly fat is genetics. It has been noticed that if your parents have belly fat, you might also have the same body type.
You've Gained Muscle Mass
If you're exercising regularly and doing a mix of cardio and strength training, it's very likely your body composition (ratio of muscle to fat) is changing for the better. If you're gaining muscle while losing fat, the scale may not show any weight change.
For some people, the first noticeable change may be at the waistline. For others, the breasts or face are the first to show change. Where you gain or lose weight first is likely to change as you get older. Both middle-aged men and postmenopausal women tend to store weight around their midsections.
According to our experts, the reason you gain weight so rapidly in your midsection and not in, say, your calves and forearms is because the adipocytes (or fat cells), which are found throughout the body, are more plentiful in the hips, butt, stomach, and thigh area for women and stomach for men.
There are some medical conditions that can drive weight gain and make it much harder to lose weight. These include hypothyroidism, polycystic ovarian syndrome (PCOS), and sleep apnea. Certain medications can also make weight loss harder — or even cause weight gain.
Too much cardio makes you lose muscle mass and this makes your metabolism slow. As a result, the fat burning mechanism in your body slows down. Thus, your weight-loss results won't be as quick as they used to be.
Doing cardio in excess can increase the risk of more muscle burn. This happens as the body struggles to keep up with the increased level of energy. It weakens your metabolism and hampers the process of weight loss.
To gain weight, minimize aerobic and cardio exercises. These are meant to burn fat and tone muscle, not bulk you up. You don't have to avoid them entirely, though. You can do these exercises in moderation to tone your muscles.