If your cat eats dry food, he's more prone to constipation than a cat who eats wet food due to the decreased moisture content. Your vet will do a simple test to determine your cat's hydration level by pinching a fold of skin on his shoulders and pulling up. If it snaps back into place when released, he's well hydrated.
Comparing the Calorie Burn. In terms of calories, a 30 minute treadmill running session at 6mph for an 155lb adult will burn around 350 calories. The same size adult will burn around 260 calories in 30 minutes on a Spin bike at a steady pace. However, a Spinning class is much more intense so you can expect to burn anywhere from 400-600 calories if you push yourself.
High-impact aerobics can burn up to 500 calories an hour. And indoor cycling can burn up to 500 calories in 45 minutes. In high-intensity classes, the amount of calories can vary greatly depending on how much effort you put into the workout. For example, you can burn anywhere from 211 and 739 calories an hour using a stationary bike, depending on the intensity of the workout.