GGIR use for 24-h waist-worn accelerometer

[Henrique Soares]

Hi everyone, 

I am now working on a project to describe the patterns of sleep, sedentary behavior, and physical activity in older adults. I am interested in using GGIR to analyze the 24-h accelerometer data; however, the accelerometers were placed at the hip and I did not find any algorithm to assess sleep parameters using hip-worn accelerometers. I was wondering if there is any algorithm currently available?

Thanks in advance

Antonio Henrique

[Vincent van Hees]

Hi Antonio,

I am afraid there is no algorithm yet for hip-worn accelerometers to detect sleep that works with GGIR. Further, I think it is important to split this question up between age groups as pre-schoolers, children, adolescents, and adults may all require a different approach.

You and others can help establish these algorithms as follows:

1. Help identify or collect a suitable dataset to train and evaluate the algorithm. A dataset will have to include polysomnography and/or a sleep diary.

2. Use the data to optimise the existing algorithm or develop a new algorithm. I am happy to help with this as a paid consultancy.

Best wishes,

Vincent

Dr. Vincent van Hees

Independent consultant

https://accelting.com/

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