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.
The stiff-leg deadlift targets the hamstrings and buttocks muscles. Although often done with a barbell, using dumbbells for the stiff-leg deadlift exercise offers some advantages. When first learning the stiff-leg deadlift exercise, start with light dumbbells while you perfect the technique.