The new Actigraphy licensed feature operates in two modes to provide a general indication of activity and also sleep patterns. The analysis routine requires a raw accelerometer signal coming from either a BioNomadix module or the Mobita. The accelerometer will record the general activity levels of the subject and the software will display and report the results. When the analysis is combined with the GPS tracker, it is possible to identify where the subject was located and compare it with the actigraphy data.
SLEEP ANALYSIS
The sleep detection method uses a zero crossing algorithm that breaks the data down into one minute windows as described in the publication by Sadeh A, Sharkey K, et. al. The algorithm then employs a sleep onset heuristic as reported by Cole R, Kripke D, et. al. The data is displayed and the software reports the following sleep-related metrics:
- Sleep onset
- Percentage of wake
- Sleep end
- Wake after sleep onset (WASO)
- Total sleep period length
- Sleep bouts
- Sleep time
- Wake bouts
- Percentage of sleep
- Mean sleep bout
- Wake time
- Mean wake bout
ACTIVITY ANALYSIS
The activity analysis is intended to analyze data that was collected from the subject throughout the day. It reports on the general level of activity that was evident in the accelerometry data and breaks it into low, medium and high activity levels. The report provides the following metrics:
- Total low activity time
- Waking low activity time
- Total high activity time
- Total low activity %
- Waking low activity %
- Total high activity %
- Total medium activity time
- Waking medium activity time
- Waking high activity time
- Total medium activity %
- Waking medium activity %
- Waking high activity %
The MP160 data acquisition systems include all hardware, AcqKnowledge software and guides you need to get started. The software, hardware and tutorial guides are provided in digital, PDF format for easy access and search options while running AcqKnowledge.
The MP160 System offers:
- Ethernet-ready data acquisition and analysis – ships with USB 2.0 to Ethernet Adapter, 10/100 Mbps – ETHUSB
- AcqKnowledge current release software
- Record multiple channels with differing sample rates
- Record at speeds up to 400 kHz (aggregate)
- Record from multiple MP160s with the Linked Acquisition feature in AcqKnowledge
Place one or more MP160 Systems in a local area network (LAN). Use any PC in the LAN to record from any MP160 system in the network.
