If you think you're too old to get into shape, a Sioux Falls group hopes to prove you otherwise.
Some middle-aged women are taking part in triathlons, and they say they're in better shape now than they were a decade ago.
It might not be how you envision spending your 40th birthday, but Heidi Weelborg hopes to celebrate "over the hill" by competing in a triathlon.
"I wouldn't want to do anything else," Weelborg said.
Weelborg has participated in more than ten triathlons. This year she not only hopes to finish the race, but she wants to have a personal best time.
"Every year you get faster I think," Weelborg said.
Lisa Murphy knows it's possible. After all, she didn't start competing in triathlons until she reached her 40s.
"I'm in way better shape than I was ten years ago because I couldn't run," Murphy said.
Because during triathlons you switch up your workout routine from biking to running to swimming, it can actually be easier on your joints than just running.
"I really like running, but every day running is really hard on your joints, and it seems like you have more injuries," Weelborg said.
"Biking is a very low-impact exercise too, and so is swimming. It's nice to incorporate that cross-training with all three different activities," Sanford Wellness Center Certified Triathlon Coach Kathy Grady said.
But Grady says no matter your age, if you have not raced before, you need to start training slowly. Also, listen to your body.
"Let's say somebody who is not running at all wouldn't just start off doing a 30 minute run the first day. They would do a run/walk type of program," Grady said.
But with the proper training, these women encourage anyone at any age to try to lead an active lifestyle.
"It's very important if you are working all day to go out and get a little exercise in the morning or after work," Weelborg said.
"In my early 30s, I didn't work out much. I feel much better now," Murphy said.