Sama sekali tidak masalah. Tidak ada masalah sama sekali, maksudnya.

Jika tujuannya adalah menurunkan berat badan dengan membakar lemak, Anda hanya perlu mengurangi asupan kalori Anda sampai Anda mencapai defisit kalori. Saya jamin, hanya dengan berbaring saja, berat badan Anda akan turun. Tidak perlu menyiksa diri dengan berjoget Zumba atau berlari di treadmill atau bersepeda di stationary bike.

Tersedia banyak artikel online yang menjelaskan bahwa defisit kalori adalah kunci dalam menurunkan berat badan/membakar lemak. Salah satunya adalah artikel di bawah ini:.
Saya menyalin bagian yg menurut saya penting:

The in-depth study found that the rural children, who run, play and forage for hours, are leaner and more active than their urban counterparts. But they do not burn more calories day-to-day, a surprising finding that implicates the urban children’s modernised diets in their weight gain. The findings also raise provocative questions about the interplay of physical activity and metabolism and why exercise helps so little with weight loss, not only in children but the rest of us, too.

Jadi peran olahraga dalam menurunkan berat badan itu minimal, tapi ini bukan penemuan baru. Kita sudah tahu ini dari dulu.

Although the tribespeople moved frequently during the day, hunting, digging, dragging, carrying and cooking, they burned about the same number of total calories daily as much-more-sedentary Westerners.

We humans must have developed an innate, unconscious ability to reallocate our body’s energy usage. If we burn lots of calories with, for instance, physical activity, we burn fewer with some other biological system, such as reproduction or immune responses. The result is that our average, daily energy expenditure remains within a narrow band of total calories, helpful for avoiding starvation among active hunter-gatherers, but disheartening for those of us in the modern world who find that more exercise does not equate to much, if any, weight loss.

He precisely measured energy expenditure in some of the young Shuar and compared the total number of calories they incinerated with existing data about the daily calories burned by relatively sedentary (and much heavier) children in the United States and Britain. And the totals matched. Although the young Shuar were far more active, they did not burn more calories, over all.

Nah ini yg menarik. Kaum aktif dan kaum rebahan ternyata membakar kalori yg kurang lebih sama setiap hari.

All of the children, rural or urban, active or not, burned about the same number of calories every day.

What differed most were their diets. The children in the market town ate far more meat and dairy products than the rural children, along with new starches, like white rice, and highly processed foods, like candy. In general, they ate more and in a more-modern way than the rural children, and it was this diet, Dr Urlacher and his colleagues conclude, that contributed most to their higher weight.

The results do indicate that how much children eat influences their body weight more than how much they move. Exercise is still very important, but keeping physical activity up may not be enough to deal with obesity.

Jadi sudahlah, tidak perlu menyiksa diri dengan berpeluh di gym hanya untuk menurunkan berat badan. Lebih baik berolahraga untuk meningkatkan kesehatan. Namun, jika Anda berpikir bahwa berolahraga tanpa mengatur pola makan akan membuat berat badan turun, saya khawatir Anda akan kecewa.