What to do instead: Dr. Snibbe is a big fan of trampoline workouts, where you’re bouncing on a surface with plenty of give. But you can also safely hop on the floor of a typical gym or workout studio so long as you’re adequately warmed up. If you’re going to run, particularly for long distances, opt for surfaces like dirt or grass trails, the rubber track at a high school, a treadmill, or even asphalt, all of which offer greater shock absorption than concrete.

3. Overdoing those leg circles on a Pilates reformer

Hip circumduction is one exercise that’s proven itself to be a repeat offender among Dr. Snibbe’s patients. It’s most often done on a Pilates reformer or a modified piece of equipment called a Megaformer (which is used in Lagree): You put your foot in a stirrup attached to a cable, and while keeping your leg straight, draw large circles with your foot, flexing your hip joint through its full range of motion. This move works your core and the stabilising leg (the one not moving) – but the problem is, it’s tempting to turn it into a dynamic stretch for the mobile leg and make those circles way too big, Dr. Snibbe says. He sees a lot of labral tears and other hip injuries from these maneuvers.

What to do instead: If you’re in a class where this move comes up, keep the circular movements small. Dr. Snibbe suggests making them about the size of a basketball to get the benefits for your lower core and leg muscles without overtaxing your hip joint.

4. Working out the same muscles on back-to-back days

Unlike cardio, which you can safely do for several days in a row, it’s not wise to tap the same muscle group for consecutive strength sessions. “Every time you work out, you’re creating microscopic tears in your muscles, and those areas need time to heal in order to build strength,” Dr. Snibbe says. If you keep burning out the same muscles day after day, you’ll bypass the recovery necessary to make gains – and risk an overuse injury.

What to do instead: Alternate between muscle groups for resistance training. For example, you can strength-train as much as three to four times per week, Dr. Snibbe says, but you might hit chest and triceps one day, back and biceps the next, followed by leg day; or intersperse weight and cardio days. And don’t forget to fit in at least one to two days a week of rest or active recovery (with low-intensity movement, like yoga or a gentle walk).

5. Doing bootcamp workouts to “get back in shape” ASAP

These workouts consist of a high-intensity combo of cardio and strength-training moves designed to blast your whole body. That’s great if you’re already pretty fit – but bootcamps often appeal to people who haven’t worked out consistently and are looking for a “quick fix” to whip themselves into shape, Dr. Snibbe says. “All of a sudden, you’re sprinting on a treadmill, you’re lifting way-too-heavy weights – you’re going from zero to 100 kimometres an hour.” But the only thing you’re fast-tracking is your path to fainting or rupturing a tendon.

What to do instead: Remember, there’s no short cut to becoming fit. If you haven’t ever consistently worked out, or you’ve taken a break from doing so, it’s important to ease in, beginning with brief or low-intensity cardio and bodyweight moves, and ramping up slowly and steadily. Focusing on alignment is key when you’re starting out and your stamina is low, Dr. Snibbe says, because form tends to crumble with exhaustion, opening the door for injury.

This article originally appeared on SELF.