mHealthHub Forum - Recent Posts https://mhealthhub.org/community/ mHealthHub Discussion Board en-US Tue, 10 Mar 2026 12:37:24 +0000 wpForo 60 RE: What technical challenges are you facing in your mHealth studies? Please provide a brief summary of the problem or comment on the 5 common challenges below. https://mhealthhub.org/community/techincal-challenges/5-common-technical-challenges-faced-by-clinical-implementers-what-are-some-challenges-you-have-faced-in-your-own-studies/paged/2/#post-12 Tue, 28 Mar 2023 23:34:51 +0000 Privacy and security issues

  • Owner-ship of user data. Users of consumer wearable devices today often do not own their data. Instead, the manufacturer handles data collection and storage, while the end users (including g implementers) are only provided with a summary of results based on the collected data.
  • Liability from user generated data (like location based on Global Positioning System, email, age, sex etc.) being shared/sold to third-parties.
  • Growing risks from sensor data due to rapid advances in AI for wearables
]]> Lyndsey Tran https://mhealthhub.org/community/techincal-challenges/5-common-technical-challenges-faced-by-clinical-implementers-what-are-some-challenges-you-have-faced-in-your-own-studies/paged/2/#post-12 RE: What technical challenges are you facing in your mHealth studies? Please provide a brief summary of the problem or comment on the 5 common challenges below. https://mhealthhub.org/community/techincal-challenges/5-common-technical-challenges-faced-by-clinical-implementers-what-are-some-challenges-you-have-faced-in-your-own-studies/#post-11 Tue, 28 Mar 2023 23:28:37 +0000 Restrictive OS-level APIs and Play Store policies that make it hard to collect GPS type of data. Require the development of in-house apps.

]]> Lyndsey Tran https://mhealthhub.org/community/techincal-challenges/5-common-technical-challenges-faced-by-clinical-implementers-what-are-some-challenges-you-have-faced-in-your-own-studies/#post-11 RE: What technical challenges are you facing in your mHealth studies? Please provide a brief summary of the problem or comment on the 5 common challenges below. https://mhealthhub.org/community/techincal-challenges/5-common-technical-challenges-faced-by-clinical-implementers-what-are-some-challenges-you-have-faced-in-your-own-studies/#post-10 Tue, 28 Mar 2023 23:28:21 +0000 Wearables with GPS - although they allow the user to look at GPS information live, there is usually not a way to download a log of all GPS movements. ]]> Lyndsey Tran https://mhealthhub.org/community/techincal-challenges/5-common-technical-challenges-faced-by-clinical-implementers-what-are-some-challenges-you-have-faced-in-your-own-studies/#post-10 RE: What technical challenges are you facing in your mHealth studies? Please provide a brief summary of the problem or comment on the 5 common challenges below. https://mhealthhub.org/community/techincal-challenges/5-common-technical-challenges-faced-by-clinical-implementers-what-are-some-challenges-you-have-faced-in-your-own-studies/#post-9 Tue, 28 Mar 2023 23:28:09 +0000 IMUs for actigraphy
  • Compensation of noise sources due to quantization or arising from improper on-body unstable placement or misplacement and misalignment of sensors.
  • Characterize missing data, create thresholds for inclusion, and define approaches for handling missing data.
  • Battery Life: Another technical challenge encountered when using commercial devices for research studies is battery life. Many of these devices require frequent charging, and as such, may limit the amount of data that can be collected over a certain period of time.
]]> Lyndsey Tran https://mhealthhub.org/community/techincal-challenges/5-common-technical-challenges-faced-by-clinical-implementers-what-are-some-challenges-you-have-faced-in-your-own-studies/#post-9 RE: What technical challenges are you facing in your mHealth studies? Please provide a brief summary of the problem or comment on the 5 common challenges below. https://mhealthhub.org/community/techincal-challenges/5-common-technical-challenges-faced-by-clinical-implementers-what-are-some-challenges-you-have-faced-in-your-own-studies/#post-8 Tue, 28 Mar 2023 23:19:02 +0000 Validity and reliability of the measuring devices under free-living conditions
  • Various wearable devices show large variations in accuracy between different devices, with error margins of up to 25%
  •  Commercial devices such as FitBit often rely on sensors and algorithms to measure physiological signals and activity levels, which can lead to inaccuracies in the data collected.
]]> Lyndsey Tran https://mhealthhub.org/community/techincal-challenges/5-common-technical-challenges-faced-by-clinical-implementers-what-are-some-challenges-you-have-faced-in-your-own-studies/#post-8 What technical challenges are you facing in your mHealth studies? https://mhealthhub.org/community/techincal-challenges/5-common-technical-challenges-faced-by-clinical-implementers-what-are-some-challenges-you-have-faced-in-your-own-studies/#post-6 Tue, 28 Mar 2023 21:59:13 +0000 Lyndsey Tran https://mhealthhub.org/community/techincal-challenges/5-common-technical-challenges-faced-by-clinical-implementers-what-are-some-challenges-you-have-faced-in-your-own-studies/#post-6 How to copy data from mCerebrum. https://mhealthhub.org/community/main-forum/how-to-copy-data-from-mcerebrum/#post-5 Fri, 10 Feb 2023 08:28:11 +0000 The mCerebrum platform requires all DataKit services to be stopped prior to accessing certain portions of the data archive to prevent corruption of the databases. Follow these steps to extract all archived data from an mCerebrum instance.

  1. Stop the study if it is currently running.
  2. Launch the DataKit application and ensure the timer is not running and its state is inactive
    • If the timer is still active, reboot the phone to force the connection between mCerebrum application to reset.
  3. Plug the phone into a computer
  • Apple
  • Windows
    • Plug the phone into the computer and wait for Windows to finish installing drivers
  1. Locate and copy the following folders to your computer
  • Internal Memory: /Android/data/org.md2k.datakit/files
  • External Memory if equipped: /Android/data/org.md2k.datakit/files
]]> Lyndsey Tran https://mhealthhub.org/community/main-forum/how-to-copy-data-from-mcerebrum/#post-5 How important is high-rate data handling? https://mhealthhub.org/community/main-forum/how-important-is-high-rate-data-handling/#post-4 Fri, 10 Feb 2023 08:26:10 +0000 Most, if not all, of the studies we deploy mCerebrum for, have data rates that exceed 350Hz of continuous data collection from a variety of devices. These field deployments typically range from 14-30 days and result in a minimum of 423 million data points up to a maximum 907 million points per individual.

The paper only breaks down the aggregate sampling rate by device due to space constraints. Since this has not been published yet, I do not want to discuss it in much detail here at this time. The paper presents an analysis of total data rate capabilities and you can work out the effects of how the data representation affects effective sampling rate on a per sensor basis.

]]> Lyndsey Tran https://mhealthhub.org/community/main-forum/how-important-is-high-rate-data-handling/#post-4 What is a challenge you are facing that a new mHealth technology could potentially solve? https://mhealthhub.org/community/main-forum/what-is-a-challenge-you-are-facing-that-a-new-mhealth-technology-could-potentially-solve/#post-3 Fri, 10 Feb 2023 08:23:36 +0000 Describe the challenge or the technology you would like to see explored.

]]> Lyndsey Tran https://mhealthhub.org/community/main-forum/what-is-a-challenge-you-are-facing-that-a-new-mhealth-technology-could-potentially-solve/#post-3