WASHINGTON (CBSDC) — A new Marine Corps study obtained by CBS News shows that women in combat are at a significant disadvantage compared to men.

For months, male and female Marines simulated battle in a scientific study conducted by the Marine Corps. Researchers recorded their performances to determine the impact women had on combat.

The results revealed that that the all-male units performed better than those units that were comprised with both men and women and that women would get injured more.

“It’s not that we can’t carry weight. We can carry the weight. It’s the pace, especially when we match up with the males. You’re looking at our size, and we have males that are almost 6 foot with longer strides, and it’s hard to catch up with them, keep up with them,” Cpl. Janelle Lopez told CBS News.

CBS News reports that the men were “faster in each tactical movement,” had “better accuracy” and were “quicker.” The men also “registered more hits on target” and had “a noticeable difference in their performance” of “evacuating casualties” and overcoming obstacles.

The female Marines said they would not want the standards to be lowered for them.

“It takes a special person, a special drive and a special mindset and a special heart to do this,” Sgt. Danielle Beck told CBS News. “There’s not many of us, and it goes the same way for the men.”

The study was commissioned by the Marines after then-Defense Secretary Leon Panetta said in 2013 that all combat jobs should be open to women.

“We must open up service opportunities for women as fully as possible,” he said at the time.

CBS News reports the Marine Corps will make a decision on seeking an exception to women in combat this fall.