Retest-reliability and At-home-assessment Feasibility of the 5R-STS

Test-retest-reliability and At-home-assessment Feasibility of the Five-repetition Sit-to-stand Test (5R-STS)

The five-repetition sit-to-stand test has been validated and is used primarily in pulmonary medicine and cardiology, and has recently been shown to be a useful tool for the objective assessment of functional impairment in patients with degenerative diseases of the lumbar spine.

The goal of this study is to assess the possibility of supervised and unsupervised at-home-assessment. Validation of at-home-assessment would allow the 5R-STS to be easily used as a follow-up tool in clinical trials, for example.

Patients will perform three 5R-STS measurements:

1. During outpatient clinics, time measured by the physician
2. At home, time measured by partner/family
3. At home, and assessed by producing a video recording of the 5R-STS performance that is subsequently sent and analyzed (time measured digitally)

Inclusion Criteria:

• Degenerative diseases of the lumbar spine (Herniated disc, lumbar stenosis, spondylolisthesis, degenerative disc disease)
• Symptoms of lower back pain, neurogenic claudication, or radiculopathy

Exclusion Criteria:

• Hip or Knee prosthetics
• Walking aides