Human: Can you explain the different types of exercise equipment available? Assistant: 
Exercise equipment is designed to provide a safe and effective way for people to get fit. There are three main types of exercise equipment: cardio machines, strength-training machines, and free weights. Cardio machines typically include stationary bikes, treadmills, and elliptical trainers. Strength training machines can be found in many forms such as weight benches, dumbbells, barbells, and resistance bands. Free weights offer an alternative form of exercise that involves lifting weights with your own bodyweight or with added weight plates. Each type of machine offers its own benefits and should be used according to individual fitness goals.