Apple Watch Can Accurately Assess Frailty, Finds Stanford Study
The Apple Watch can accurately determine a user's "frailty," according to the findings of a recently-published study from Stanford University (via MyHealthyApple).
Frailty can be determined using a six-minute walking test (6MWT), and the metric is a general standard used to evaluate the functional mobility and exercise capacity of a patient. Higher scores indicate "healthier cardiac, respiratory, circulatory, and neuromuscular function," according to Apple.
Conducted by Stanford University researchers and funded by Apple, the study provided 110 Veterans Affairs patients with cardiovascular disease with an iPhone 7 and Apple Watch Series 3. Patients conducted regular at-home six-minute walking tests, which were then compared to their standard in-clinic 6MWT performance.
The study found that an Apple Watch was able to accurately assess frailty with a sensitivity of 90 percent and specificity of 85 percent when supervised in a clinical setting. When assessed in an unsupervised setting at home, the Apple Watch was able to accurately assess frailty with a sensitivity of 83 percent and specificity of 60 percent.
The findings indicate that passive activity data gathered by the Apple Watch is an accurate predictor of in-clinic 6MWT performance.
In this longitudinal observational study, passive activity data acquired by an iPhone and Apple Watch were an accurate predictor of in-clinic 6MWT performance. This finding suggests that frailty and functional capacity could be monitored and evaluated remotely in patients with cardiovascular disease, enabling safer and higher resolution monitoring of patients.
While the study used a specially-developed app called "VascTrac" to gather 6MWT data alongside the Apple Watch's passively-collected activity data, Apple has since included a series of new mobility-related health metrics in watchOS 7, including the 6MWT. It is likely that preliminary data from studies such as this encouraged Apple to add the metrics in watchOS 7.
The research may urge healthcare providers to offer at-home assessment of functional capacity in cardiovascular disease patients using an Apple Watch.
Popular Stories
Apple is not expected to release a standard iPhone 18 model this year, according to a growing number of reports that suggest the company is planning a significant change to its long-standing annual iPhone launch cycle.
Despite the immense success of the iPhone 17 in 2025, the iPhone 18 is not expected to arrive until the spring of 2027, leaving the iPhone 17 in the lineup as the latest...
Language learning app Duolingo has apparently been using the iPhone's Live Activity feature to display ads on the Lock Screen and the Dynamic Island, which violates Apple's design guidelines.
According to multiple reports on Reddit, the Duolingo app has been displaying an ad for a "Super offer," which is Duolingo's paid subscription option.
Apple's guidelines for Live Activity state that...
Apple is planning to release a low-cost MacBook in 2026, which will apparently compete with more affordable Chromebooks and Windows PCs. Apple's most affordable Mac right now is the $999 MacBook Air, and the upcoming low-cost MacBook is expected to be cheaper. Here's what we know about the low-cost MacBook so far.
Size
Rumors suggest the low-cost MacBook will have a display that's around 13 ...
Govee today introduced three new HomeKit-compatible lighting products, including the Govee Floor Lamp 3, the Govee Ceiling Light Ultra, and the Govee Sky Ceiling Light.
The Govee Floor Lamp 3 is the successor to the Floor Lamp 2, and it offers Matter integration with the option to connect to HomeKit. The Floor Lamp 3 offers an upgraded LuminBlend+ lighting system that can reproduce 281...
Now that the calendar has flipped over into January, steep discounts on popular Apple products have become more rare after the holidays. However, if you didn't get a new pair of AirPods recently and are looking for a model on sale, Amazon does have a few solid second-best prices this week.
Note: MacRumors is an affiliate partner with some of these vendors. When you click a link and make a...
Belkin today announced a range of new charging and connectivity accessories at CES 2026, expanding its portfolio of products aimed at Apple device users.
UltraCharge Pro Power Bank 10K with Magnetic Ring
The lineup includes new Qi2 and Qi2.2 wireless chargers, magnetic power banks, a high-capacity laptop battery, and USB-C productivity accessories, with an emphasis on higher charging...
With the release of iPadOS 26.2 and macOS Tahoe 26.2, Apple has improved the Wi-Fi speeds for select Macs and iPads that support Wi-Fi 6E. Updated Wi-Fi connectivity specifications are listed in Apple's platform deployment guide.
The M4 iPad Pro models, M3 iPad Air models, A17 Pro iPad mini, M2 to M5 MacBook Pro models, M2, M3, and M4 MacBook Air models, and other Wi-Fi 6E Macs and iPads now ...
Apple plans to introduce a 12.9-inch MacBook in spring 2026, according to TrendForce.
In a press release this week, the Taiwanese research firm said this MacBook will be aimed at the entry-level to mid-range market, with "competitive pricing."
TrendForce did not share any further details about this MacBook, but the information that it shared lines up with several rumors about a more...
