Details

Autor(en) / Beteiligte

• Pacifico, Daniela
• Visscher, Rosa
• List, Renate
• Item-Glatthorn, Julia F.
• Casartelli, Nicola C.
• Maffiuletti, Nicola A.

Titel

Discriminant validity and reproducibility of spatiotemporal and kinetic parameters during treadmill walking in patients with knee osteoarthritis

Ist Teil von

• Gait & posture, 2020-07, Vol.80, p.77-79

Ort / Verlag

England: Elsevier B.V

Erscheinungsjahr

2020

Quelle

MEDLINE

Beschreibungen/Notizen

• •Measurement properties of an instrumented treadmill were evaluated in KOA patients.•Discriminant validity was good, particularly for single-limb support duration.•Test-retest reproducibility was acceptable for most of the gait parameters.•The treadmill may have potential clinical utility for quantitative gait analysis. Instrumented treadmills are potentially useful tools for the assessment of gait parameters in orthopaedic clinical settings, but their measurement properties remain uncertain. What is the discriminant validity and reproducibility of spatiotemporal and kinetic gait parameters measured by a pressure-instrumented treadmill at different speeds and inclinations in patients with knee osteoarthritis (KOA)? A total of 54 patients with unilateral KOA and 23 healthy controls took part in the study. Step length, single-limb support duration and ground reaction force were recorded during level and uphill walking at 3 and 4 km/h using a commercially-available treadmill instrumented with an integrated pressure platform. We examined discriminant validity (difference between involved and uninvolved side as well as against healthy controls) and test-retest reproducibility (reliability and agreement). Significant side differences were observed for single-limb support duration and ground reaction force at touchdown in all conditions (P < 0.05). All the investigated gait parameters showed acceptable reliability and agreement, except step length at 4 km/h uphill. We conclude that the pressure-instrumented treadmill used in this study may have good clinical utility for quantitative gait analysis in patients with KOA under different experimental conditions.