Recruiting

Observational Study

Sponsor:

University of Chicago

Code:

NCT05886725

Conditions

Gait, Unsteady

Eligibility Criteria

Sex: All

Age: 60+

Healthy Volunteers: Not accepted

Interventions

Patients using Step Test Application and Accelerometer

Study Details

Brief summary:

This is a prospective observational study looking at gait-cadence in older adults who are scheduled to have major abdominal surgery at the University of Chicago. The objective of the study is to evaluate whether gait-cadence, as measured from a patient's mobile device at-home, can provide an accurate assessment of a patient's functional status prior to major abdominal surgery and identify patients at risk of poor functional outcomes.

Conditions

Gait, Unsteady

Study ID

NCT05886725

Start date

Jan 2, 2023

Status verified date

Apr, 2026

Completion date

Jun, 2027

Anticipated

Primary completion date

Dec 31, 2026

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 60+

Healthy Volunteers: Not accepted

Inclusion Criteria:

  • Patients > or = 60 years of age and scheduled for surgery.
  • Access to a safe walking space roughly 30 ft in length. Safe walking spaces include a long hallway in the home, common use hallway in an apartment building or outside public area.
  • Able to walk independently with or without an assistive device (e.g. cane or walker)

Exclusion Criteria:

  • Inability to walk independently
  • Surgery scheduled less than 7-days after APMC appointment
  • Patients scheduled for orthopedic surgery
  • Patients scheduled for neurological surgery
  • Patients scheduled for cardiac surgery
  • Non-English speaking.

Study Design

Enrollment

100 participants

Anticipated

Interventions and Outcome Measures

Interventions

Patients using Step Test Application and Accelerometer

Patients who are scheduled to have surgery at University of Chicago Medical Center (UCMC) who agree to use the step test application and study accelerometer before and after their surgery.

Primary outcome measure

  • Accuracy of gait-cadence measured from at-home and in-clinic walk tests as measured by ActivPAL accelerometers. [ Time Frame: Baseline (Before surgery) ]

Central Contacts and Locations

Central contacts

Daniel Rubin, MD

773-702-6856drubin2@bsd.uchicago.edu

Locations

University of Chicago Medical Center

Recruiting

Chicago, Illinois, United States, 60637

Contacts

Daniel Rubin, MD

773-702-6856drubin2@bsd.uchicago.edu

More Information

Sponsor

University of Chicago

Last update posted

May 4, 2026

Last verified

Apr, 2026

Keywords

  • Walking Cadence
  • Surgery
  • Older Adult
  • Smartphone
  • Accelerometer
  • Recovery trajectory
  • Functional capacity
  • Activity
  • Major abdominal surgery

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-09. This information was provided to ClinicalTrials.gov by University of Chicago on 2026-05-04.