As muscle cells get smaller, fat cells tend to get bigger. After all, the muscles aren't working hard enough to burn away calories. This can lead to weight gain as soon as 14 days (or earlier) once you stop exercising, according to Men's Journal.
By now, we've established that a balance must be struck between diet and exercise. The former alone just can't give you the long-term weight-loss results and health benefits that a combination of the two can.
It is a common misconception that if you eat healthy food, you do not need to exercise. However, this is not the case. While eating healthy food is important for maintaining a healthy weight and preventing chronic diseases, it is not enough on its own. Exercise is also important for overall health.
If you stop exercising, your muscles will eventually begin to atrophy, or waste away. This is because muscles require regular use to maintain their strength and mass. When you stop exercising, your body will start to break down the proteins in your muscles, which can lead to a loss of muscle mass and strength.
You'll end up exhausting yourself, feeling lousy and possibly becoming even hungrier due to over-exercising and eating poorly. You might also end up becoming dependent on exercise to burn off the extra kilojoules you eat from junk food.
You can gain muscle with a “bad diet” if you are eating enough protein and total calories, just like you can still lose weight with a “bad diet” if you are in a calorie deficit. However, the process won't be optimised and you won't feel as good as you could throughout the process or in the long term.
Symptoms and warning signs of overtraining
“It's natural and expected to feel fatigued after challenging training sessions,” Dr. Goolsby says. “But feeling like you aren't recovering between sessions or experiencing overall fatigue and difficulty pushing yourself during workouts can be indicators of overtraining.”
When you abruptly reduce your physical activity, your body undergoes some biological changes — both quickly and in the long term. While rest days offer everyone a chance to relax and recharge, permanent sedentary living can negatively impact your health in many ways.
"A lot of people feel and look less tight and toned when they stop working out," he explains. "It's more of a cosmetic thing." When you don't work out regularly, your body composition starts to change. With little physical activity, muscle cells shrink.
You'll Lose Muscle Mass
And while your body will hang onto strength gains longer than aerobic gains, throwing in the proverbial exercise towel will gradually lead to a loss of lean muscle mass, muscular strength, endurance, and neuromuscular training adaptations, explains Holland.
Neither dieting or exercising alone is enough for optimal health, but when it comes to weight loss, eating a healthy, balanced diet is more effective than exercise. However, exercise has countless benefits, and it is an important part of both losing weight and keeping it off.
As a very loose guideline, the general recommended daily calorie intake for men is 2,500 and for women is 2,000. If you're fairly inactive, a healthy target for weight loss would be around 1,300 - 1,500 for women and 1,800 - 2,000 calories for men.
To lose 2 pounds per week, you need to create a calorie deficit of 1,000 calories per day. This is only safe if a healthcare provider has approved it. Calorie needs depend on a variety of factors such as metabolism, current weight, height, and activity level, which are different for everyone.
You can lose weight by eating less, but adding physical activity allows you to burn more calories than dieting alone. Any weight-loss plan that includes regular exercise is not only more successful — it's also healthier. By eating a healthy diet and exercising, you're keeping your bones, muscles, and heart strong.
Most experts recommend aiming for 1-2 pounds of weight loss per week, which equates to roughly 4-8 pounds in a month. Those with more excess weight may see slightly faster loss initially. The key is losing at a gradual rate through calorie deficit rather than drastic measures.
Diet vs exercise for weight loss
According to Colleen Alrutz, health and fitness manager at Piedmont Newnan, diet wins 70% of the time when it comes to shedding pounds. To fast-track your weight-loss results, couple a healthy diet with regular physical activity. Exercise wins when it comes to keeping the weight off.
Too many starchy carbohydrates and bad fats are a recipe for that midsection to expand. Instead, get plenty of veggies, choose lean proteins, and stay away from fats from red meats. Choose healthier fats in things like fish, nuts, and avocados. Even a moderate cutback on carbs (grains, pasta, sugars) can help, too.
Although adequate protein throughout the day is necessary, extra strength training is what leads to muscle growth — not extra protein intake. You can't build muscle without the exercise to go with it. The body can't store protein, so once its needs are met, any extra protein is used for energy or stored as fat.
You may notice that you have improved energy, mood, and sleep. Noticeable changes (2-4 months): More noticeable changes typically occur within several months, including weight loss and muscle tone. Your genetics, muscle fiber makeup, and the quality of your workouts affect your strength if you are well-conditioned.
In the first ten days to two weeks of inactivity/de-training, there is a measurable loss in cardiovascular fitness, but even this level of decrease is only about 2-3% drop in values such as VO2 Max, MAP (maximum aerobic power), or FTP (functional threshold power).
In the review, Weinstein explained “the more important exercise is to an individual, the more likely it is that the individual will have a more adverse reaction to its removal.” Of the studies reviewed, depressive symptoms such as fatigue, tension, low self-esteem, insomnia, and irritability were frequently reported.
But in some cases, extreme exercise can damage the heart. Research is showing that a small percentage of middle-aged and older athletes who compete in endurance events over many years may be at higher risk for developing atrial fibrillation – an irregular heartbeat – and other heart problems.
Doing 100 push-ups a day can help build muscle mass, strength, and endurance, especially in your core and upper body. But it can also increase your risk of muscle imbalances, injury, and overtraining. It's important to focus on proper form when practicing push-ups.
Get a blood test
Some markers, like testosterone, cortisol, and CRP, are sometimes helpful in detecting signs of overtraining.