TUESDAY, June 24, 2025 — Weighted vests have been touted as a potential means of warding off

2025年6月24日，星期二 — 加重背心被认为是一种可能的预防手段

osteoporosis

骨质疏松症

while losing weight.

在减肥的过程中。

The idea is that the extra weight will promote new bone growth even as people are walking or jogging to lose weight.

这个想法是，即使人们在走路或慢跑来减肥，额外的重量也会促进新骨质的生长。

But this idea isn’t backed up by results, a new clinical trial says.

但是这项新临床试验表明，这种想法并没有得到结果的支持。

Seniors with obesity who wore weighted vests did drop excess pounds, but the vests did not significantly prevent bone density loss, researchers reported June 20 in

研究人员6月20日报告说，肥胖老年人穿着加重背心确实减轻了多余的体重，但背心并没有显著防止骨密度流失。

JAMA Network Open

JAMA网络开放

.

。

“We hoped that replacing lost weight externally or increasing mechanical loading through exercise would preserve bone, but our findings show that these strategies alone may not be enough,” said lead researcher

“我们希望通过外部增加体重或通过运动增加机械负荷来保持骨骼健康，但我们的研究结果表明，这些策略单独使用可能并不足够，”首席研究员说。

Kristen Beavers

克里斯汀·比弗斯

, a professor of internal medicine, gerontology and geriatric medicine at Wake Forest University School of Medicine in Winston-Salem, N.C.

北卡罗来纳州温斯顿-塞勒姆市维克森林大学医学院的内科、老年学和老年医学教授

Weight loss is encouraged among heavy seniors to help protect their heart and joint health, but it also can lead to bone loss, researchers said in background notes.

研究人员在背景资料中表示，鼓励体重较重的老年人减肥以帮助保护他们的心脏和关节健康，但这也会导致骨质流失。

To see if weighted vests might help, researchers recruited 150 seniors with obesity. Their average age was 66. Participants were randomly assigned to one of three groups, all of whom took part in a weight-loss diet.

为了验证加重背心是否有所帮助，研究人员招募了150名患有肥胖症的老年人。他们的平均年龄为66岁。参与者被随机分配到三个组之一，所有组都参与了减肥饮食计划。

One group received the diet alone, which included a partial meal replacement program along with regular nutrition classes. A second had the diet plus regular resistance training.

一组仅接受饮食方案，其中包括部分代餐饮食计划以及定期的营养课程。另一组则在饮食基础上增加了定期的抗阻力训练。

The third group had the weight loss diet and were asked to wear a weighted vest at least eight hours a day, during the most active part of their day. Weights were regularly added to the vest to match the pounds they’d lost through dieting.

第三组进行了减肥饮食，并被要求在一天中最活跃的时间段每天至少穿戴加重背心八小时。背心的重量会随着他们通过节食减掉的磅数而定期增加。

All three groups achieved similar significant weight loss of 9% to 11% of body weight during a year on the diet, researchers found.

研究人员发现，所有三组在一年的饮食中体重都减轻了相似的显著比例，即体重的9%到11%。

Unfortunately, all three groups also experienced a similar rate of decrease in hip bone density, results show.

结果显示，不幸的是，这三组人群髋骨骨密度下降的速度也相似。

This doesn’t mean that seniors who have a weighted vest should stop using it, Beavers said. The added weight can help them lose pounds, add to their strength and improve day-to-day abilities like getting out of a chair.

贝弗斯说，这并不意味着使用加重背心的老年人应该停止使用。加重背心可以帮助他们减重、增强体力，并提高日常能力，比如从椅子上站起来。

But doctors are going to need to figure out other ways to help older folks protect their bone health, she said.

但她表示，医生们需要找到其他方法来帮助老年人保护骨骼健康。

“Fractures in older adults can be life-altering,” Beavers said. “Our study reinforces that we need to think beyond traditional exercise and consider new or combined approaches to protect bone during weight loss.”

“老年人骨折可能会改变生活，”比弗斯说。“我们的研究强调，我们需要超越传统的锻炼方式，考虑新的或综合的方法，在减重过程中保护骨骼。”

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