timing how long it takes for your kettle to boil 1 cup (250ml) of water. looking at the power of your kettle (Watts, often found on the base of the kettle) joules = wattage x time (in seconds)
Rock climbing can help build and tone your legs and glutes. Indoor rock climbing is a sport that when properly executed, recruits every major muscle group in the body. Rock climbing is a full body workout that tones and strengthens the arms, shoulders and core muscles. You can also effectively strengthen and tone your legs and buttocks with regular indoor rock climbing sessions.
Aerobic versus anaerobic stair climbing workouts. Depending upon how we use them, stairs can predominantly improve our aerobic fitness or our muscle strength. For strength improvement it is best to walk up two steps at a time and limit the number of sets of stair climbs we do per workout to between 1 and 5 sets. And instead of running up 20 flights of stairs, it may only be necessary to walk up a total of 15 to 30 steps per leg.