Sit-ups should be done every three to four days. As sit-ups are not the most effective way to build muscle or burn fat, they should be done as part of a more involved exercise routine.Know More
Sit-ups target a small portion of the core muscles and should be done in sets of 12 to 20 repetitions, and weights should be used to add resistance and improve results when needed. These should be done once every three to four days to allow the body to rest and build muscle while also allowing time and energy for other exercises.
Solely focusing on sit-ups as exercise can lead to muscle imbalances. This can also lead to middle and lower back problems. A balanced exercise routine should include sit-ups along with core strength training and cardio to achieve the best results possible.Learn more about Exercise
An individual can do a thousand crunches each day, and it still will not provide a six-pack abdomen; to get a six-pack, individuals need to work all of the muscle groups in the abdomen. The upper abs, lower abs and obliques must be built so that they have a prominent appearance.Full Answer >
Most individuals would have to perform over 50,000 sit-ups to lose 4 pounds. AZCentral explains that vigorous calisthenics, which includes sit-ups, burn about 430 calories per hour for a person weighing 130 pounds. Because each 3,500 calories burned equals 1 pound of lost weight, it takes approximately 28 hours of vigorous sit-ups for a 142-pound person to lose 4 pounds. At 30 sit-ups per minute, that is over 50,000 sit-ups.Full Answer >
It takes roughly eight hours of consecutive sit-ups to lose one pound. More specifically, a person can expend approximately 3,500 calories by doing sit-ups for eight straight hours.Full Answer >
The number of sit-ups that a 12-year old should do each day is indefinite. According to Exrx.net, the average 12-year old boy and girl can perform 39 and 36 sit-ups, respectively, in 60 seconds.Full Answer >