Pilot Studies



Pilot Pilot I
n=19; ages 18-59
Objectives:
  1. To test the feasibility of PALMS devices in the general adult population
  2. To develop algorithms to identify/visualize various data streams in PALMS

During a 5 day study period, subjects were asked to wear the Actiheart (Respironics) or ActiTrainer (Actigraph) to measure heart rate and motion, carry a GPS device (GlobalSat – DG-100) to determine participant location when physically active, wear an accelerometer to measure participant activity (only if wearing the Actiheart device), and carry a cell phone to receive and respond to text prompts.

Subjects were administered a PASA (Physical Activity Spatial Analysis) interview – a semi-structured interview to identify/confirm device wear times, transportation mode, and behavior related to heart rate (e.g. stress, caffeine consumption). These self-reported data were combined with the data collected by the devices in order to provide additional details on the contextual factors related to PAEE.

Additional questions (typically multiple-choice or yes/no) were sent to the participant’s cell phone throughout the study period. These questions were either prompts (i.e., Remember to charge your GPS device tonight!) or questions about the participant’s day (i.e., How many cups of coffee did you have this morning?). The subject was required to make four or five key-presses to send the reply. Subjects typically received messages 1 to 3 times per day.

At each measurement visit, participants were asked to answer questions about their experience with each device. Click here for a list of questions that were asked of each participant:


Pilot Pilot II
n= 17; ages 65+
Objectives:
  1. To test version. 2.0 of PALMS
  2. To test the feasibility of PALMS devices in the older adult population
  3. To continue to develop PALMS algorithms

Participants were recruited from the Casa de las Campanas senior living facility. During the 5-9 day study period, subjects were be asked to wear either the Bioharness (Zephyr) device to measure HR+M, respiration rate, and skin temperature, or the ActiTrainer (Actigraph) device to measure HR+M. In addition, all participants were asked to carry a GPS device (QStarz BT-Q1000x) to determine participant location when physically active, and carry a cell phone to receive and respond to text prompts.

Subjects were administered a PASTA (Physical Activity Spatial-Temporal Analysis) interview – a semi-structured interview to identify/confirm device wear times, transportation mode, and behavior related to heart rate (e.g. stress, caffeine consumption). These self-reported data were combined with the data collected by the devices in order to provide additional details on the contextual factors related to PAEE.

Additional Questions (typically multiple-choice or yes/no) were sent as a text message to the phone. Additional questions (typically multiple-choice or yes/no) were sent to the participant’s cell phone (provided). These questions were either prompts (i.e., Remember to charge your GPS device tonight!) or questions about the participant’s day (i.e., What was your highest level of stress today?). The subject was required to make four or five key-presses to send the reply. Subjects typically received messages 1 to 5 times per day (all messages sent in the evening).