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.
The primary muscles used in your bench press workouts are the pectorals (chest) and triceps (back of the upper arm). Bench presses and similar lifts, such as incline or decline presses, call on the pectorals and triceps to work in unison, driving the weight upward from your chest. Because the pectorals are stronger and call on the triceps during presses, itâs important to work the press lifts first and isolate the arms after.