The man does 300 sit-ups every day.

The results of a month-long challenge of doing 300 sit-ups a day showed that reducing belly fat isn't simply about how many times you do a workout.

Crunches have long been a familiar exercise in the training programs of many athletes. This movement focuses on the upper abdominal muscles while also strengthening the core, intercostal, and lower back muscles. These are important factors in improving posture and balance.

But what happens if you do 300 sit-ups every day for 30 consecutive days? In 2021, Singaporean fitness YouTuber Evan Zhang challenged himself to complete a total of 9,000 sit-ups in a month and documented the entire process.

Before starting, Zhang's waist measured 79 cm when he was tightening his muscles. After 30 days, this number had decreased to 78 cm, a reduction of only 1 cm despite completing 9,000 sit-ups. This modest result was somewhat surprising to everyone.

Sharing his experience, Zhang said this was the easiest of all the 30-day challenges he had undertaken, even less stressful than doing 300 squats or 300 push-ups every day. According to him, the abdominal muscles are smaller than the thigh or chest muscles, so recovery is faster.

Before and after photos of Zhang's challenge.

For most of the time, Zhang divided his workout into 10 sets of 30 repetitions. Towards the end, he reduced it to 6 sets of 50 repetitions to save time. Comparing before and after photos, Zhang admitted his abdominal muscles were noticeably firmer and more defined. Additionally, he lost about 0.5 kg without changing his diet.

However, Zhang emphasized that to effectively reduce belly fat, the most important thing is to create a calorie deficit, meaning the amount of calories the body burns must be greater than the amount of calories consumed each day. This forces the body to use stored fat for energy. Exercises like sit-ups mainly help to tone and define muscles, but they don't directly burn fat if the diet isn't controlled.

The online community also expressed mixed opinions. Some warned against trying to complete 200-300 repetitions on the first try, as it could cause nausea due to muscle pain. Meanwhile, others were skeptical about the actual effectiveness of sit-ups.

Source: https://znews.vn/nguoi-dan-ong-gap-bung-300-lan-moi-ngay-post1628316.html