You do not need to do any of these things with composite decking. There is no sanding, no staining, and no sealing. Composite decking is low maintenance. According to recent surveys, the fact that composite decking requires little maintenance is a key reason why consumers purchase composite decking.
It makes sense that repeatedly contracting your abs will burn belly fat, because that's the area you are working. Crunches do burn caloriesâa minimum of 68 calories per 10 minutes; however, working your abs does not mean you will burn stomach fat.[1] Do Crunches Burn Belly Fat? A study indicated that abdominal exercise alone, including Crunches, was not effective in reducing local abdominal fat stores.[2] Fat is generally burned in the opposite order it was put on.
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.