At home, make sure to wear the same gear that you would wear to the gym. For example, if you're running on a treadmill, wear shoes designed specifically for running. Wear clothing that is comfortable and that will keep you dry as you sweat.
In addition to wearing the right gear, you also should make sure that your home has safe machines, weights and other workout equipment. Check weights so that they're adjusted to your body type. For example, if you're using a leg-extension weight machine that isn't set properly, you can put too much stress on your knees and cause knee injury. Machines that aren't set correctly will prevent your muscles from moving in a full range of motion, keeping you from getting the most out of your workout [source: Skarnulis]. Always make sure that your equipment is working properly before you begin your workout. And if you're not that knowledgeable about fitness equipment, consult a fitness professional about the proper settings for your machines and physique and apply these suggestions to your home exercise setup.