Childhood Obesity Causes & Consequences. On this Page. Childhood obesity is a complex health issue. It occurs when a child is well above the normal or healthy weight for his or her age and height. The causes of excess weight gain in young people are similar to those in adults, including factors such as a person's behavior and genetics.
You're right, here's a quick calculation: Say you bench press a 100kg mass and it travels 1m (apparently you have really long arms). Lifting that weight 1m expends (100kg)(1m)(~10m/sÂ²) = 1000J. Converting to calories and then kilocalories (food calories), this gives you something one the order of 1kcal. Bench pressing 100kg burns about 1kcal.
Muscle activation. Push Ups and Bench Press mainly do the same thing â they target chest, front shoulders, triceps and lats in a pushing motion. However, when doing Bench Press the weight moves and the upper body is stabilised on a bench, which makes it easier to focus on your chest and push more weight. In Push Ups the body is moving instead, so the exercise involves more joint motion and importantly - more core activation for stabilisation.