Left to their own devices, the Masche sextuplets are constantly on the move. The high-energy one-year-olds have mastered the art of speed crawling.

"I've got six kids going in six different directions. They're like a barrel of monkeys. I can only talk for a second," laughed Laura Masche, paternal grandmother of the Masche sextuplets.

Masche was doing the grandmotherly thing, babysitting the three boys and three girls one morning last week. She marveled at how well the youngsters have developed in the first year of their lives.

"They're happy, they're healthy and they're very active. We couldn't ask for anything more," she said.

One year ago today, on June 11, 2007, Bryan and and Jenny Masche of Lake Havasu City welcomed their six children into the world. Born premature at Banner Good Samaritan Hospital in Phoenix, it took about five minutes for the obstetrics team to deliver the infants via cesarean section.

Jenny's high-risk pregnancy lasted 30 weeks and four days. The children's birth weights ranged from 2 pounds, 1 ounce to 3 pounds.

Today, Jenny reports, all six are in the 20-pound range. Each sextuplet is perfectly healthy - no sight or hearing problems that are fairly common with children born prematurely.

"They're good kids. We're not having that first problem. They're calm and rarely fuss unless they need something. We stick to a pretty tight schedule, so they hardly fuss. And they're very, very social because so many people have been in their lives . My children are not at all shy," Jenny said.

She credited a network of people with ushering the family through its first year.

"We just feel incredibly blessed. We wouldn't have made it without family and friends. Everyone has helped out so much in so many ways. Keeping track of six kids isn't easy, but the strict schedule helps. They go to bed around 7:30 (p.m.) and wake up around seven in the morning," she said.

Each sextuplet sleeps in his or her own crib. All the cribs are in one bedroom of the Masche's southside home.

"There's not much else in their room - we got rid of their changing table and just do their diapers while sitting on the floor. They're pretty active and don't want to be still when they're getting changed. The floor is safe," she said.

Bailey, Grant, Mollie, Cole, Blake and Savannah generally wake up happy.

"They don't cry when they get up in the morning. When I go in their room, they're usually standing up in their cribs, talking to each other. And when they're playing, I haven't noticed them pairing off or anything. They all play together. And if one of them crawls off in a different direction, the others will follow," Jenny said.

She has also observed empathy in her brood.

'The other day, Bailey was crying and Cole crawled over to her and put his head on her tummy, like he was trying to comfort her. It was so sweet," she said.

Both Bryan and Jenny agreed that making time for their marriage was the most challenging part of raising six children. Bryan juggles his family life with the pursuit of an MBA at the University of Phoenix and his full time job with pharmaceutical company Astra Zeneca. Jenny works about 10 hours a week as a physician's assistant.

"We just make it a point to carve out alone time for oursevles. We somehow handle the stresses. But those times when I get overwhelmed, I remind myself how glad I am to be here. I had heart failure right after the kids were born, and I'm lucky to be here. I don't care how much work it is. I'm just glad to be here, to be able to do it," Jenny said.

The Masche family will travel to New York City next week for a live appearance on NBC's Today Show June 18. That evening, the WE TV network will broadcast "OMG! Sextuplets!"

"It's an hour-long documentary of our story, starting with my pregnancy through about February of this year," Jenny said.