Why do my thighs ache during light activity?
Let's talk about muscle soreness. Delayed-onset muscle soreness, or DOMS as it is often called, is the common – one could even say requisite – result of a workout. If you do an activity you're not used to, such as taking a new type of fitness class, attacking a hill on your bike when you're used to riding on flat ground, or running a far longer distance than you are accustomed to – the difference in muscle use can cause micro-tears in muscle fibers and connective tissue. As your body works to repair itself, you may feel some low-grade pain in the area.
