Study to Reduce Sitting in Older Adults Undergoing Hip or Knee Replacements

Summary

The aim of this study is to investigate the feasibility of an intervention to reduce sedentary behaviour in older adults waiting for hip and knee replacements. The study will be a randomised controlled trial design, including 2:1 randomisation into an intervention and usual care group respectively. A target of n=45 patients ≥60 years will be recruited from Russells Hall Hospital, Dudley, UK, approximately 8-10 weeks before surgery, assisted by research nurses. The variable-length intervention, informed by Self-Determination Theory (SDT), will be composed of multiple behaviour change techniques, namely motivational interviewing, individualised feedback on sedentariness, goal-setting, environmental modification, self-monitoring, and social support. Assessments will occur at baseline, 1 week pre-surgery, and 6 weeks post-surgery. The primary outcome will be the feasibility of the trial, assessed quantitatively using study statistics, and with mixed-methods assessment of acceptability, practicality, adaption, satisfaction, and safety via questionnaires given to participants. Exploratory outcomes will include physical function, cardiometabolic biomarkers, measurement of SDT constructs, and both objective and subjective measurement daily activity and sedentariness. The study will last up to 18 weeks per participant.

Conditions

• Orthopedic Disorder
• Arthropathy of Knee
• Arthropathy of Hip
• Sedentary Lifestyle
• Physical Activity
• Osteoarthritis

Interventions

BEHAVIORAL

Sedentary behaviour reduction using motivational interviewing, education, individualised feedback, goal-setting, self-monitoring, environmental modification, and supportive phone calls

The intervention has multiple components in order to reduce sedentary behaviour, namely: incorporating individualised feedback on sitting time, education about sedentary behaviour, individualised goal-setting and environmental modification according to each participant's own behavioural patterns and capabilities, motivational interviewing, and biweekly phone calls.

Sponsors & Collaborators

• European Commission

  collaborator OTHER

• Dudley NHS Foundation Trust

  collaborator UNKNOWN

• University of Birmingham

  lead OTHER

Principal Investigators

• Justin Aunger, BA · Principal Investigator

Study Design

Allocation

RANDOMIZED

Purpose

PREVENTION

Masking

NONE

Model

PARALLEL

Eligibility

Min Age

60 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2018-01-29

Primary Completion

2019-04-15

Completion

2019-04-15

Countries

• United Kingdom

Study Locations