The NBA Draft combine is taking place in Chicago this week as the top 66 prospects look to make their best impressions for team scouts and executives. Just like the NFL, there’s a physical testing stage that includes measurements for height, weight, wingspan, reach, hand size, vertical leap and … body fat.

That last category has long seemed meaningless for the evaluation process because if a player is tall, fast, strong and jumps high, then a body-fat reading shouldn’t serve a purpose.

It also isn’t being tested accurately at the NBA Combine.

This year, 20 players measured in with body-fat levels of less than 5 percent. And according to the NBA Combine results, former Syracuse forward Oshae Brissett (whose name is misspelled on the NBA site) produced a body-fat reading of 2.9 percent.

While we don’t know what methods the NBA used to arrive at those results, science tells us that they can’t be accurate. This is a similar situation to D.K. Metcalf’s wildly inaccurate 1.9 percent body fat.

Brissett needs at least 3 percent body fat to account for essential organ functions. A body-fat percentage of 2.9 would have Brissett facing a life-threatening medical emergency — much less being able to participate in combine testing.

Georgie Fear, R.D., author of Lean Habits for Lifelong Weight, detailed the effects of dangerously low body fat to Men’s Journal:

“A body-fat percentage below 5% is regarded as a warning sign of poor health, even in elite athletes. Male bodybuilders typically go below 5% for competition, but don’t stay there in the off-season.” That’s because body fat is integral to keeping your entire body—including your cardiovascular, endocrine, reproductive, skeletal, and central nervous systems—in check. Without enough body fat, they all go haywire.

Austrian bodybuilder Andreas Munzer, for example, died in 1996. And an autopsy revealed that his body fat dropped below 3 percent, which contributed directly to his death.

Via ABC News:

“You need body fat for cellular function, energy use and to pad the joints and organs,” said Carol Garber, professor of movement sciences at Columbia University in New York City. “Having too little can lead to nutritional deficiencies, electrolyte imbalances and malfunction of the heart, kidney and other organs.”

Based on the NBA’s results, they would’ve had 20 players facing serious health risks. Brissett, in particular, wouldn’t have been able to test at 37.5 inches in the vertical or complete any of the drills. By all accounts, Brissett looks to be in great shape, but he doesn’t appear anywhere near an in-competition bodybuilder.

Brissett is the first player to test under 3 percent body fat since Aaron Brooks did in 2008. This means that the NBA has gone 10-plus years accepting questionable body-fat results as fact when they’re clearly inaccurate.

With that in mind, it’s probably time for the NBA to stop testing body fat entirely. There’s no reason for it in the first place.