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Energy recovery in individuals with knee osteoarthritis.

Publication ,  Journal Article
Sparling, TL; Schmitt, D; Miller, CE; Guilak, F; Somers, TJ; Keefe, FJ; Queen, RM
Published in: Osteoarthritis Cartilage
June 2014

OBJECTIVE: Pathological gaits have been shown to limit transfer between potential (PE) and kinetic (KE) energy during walking, which can increase locomotor costs. The purpose of this study was to examine whether energy exchange would be limited in people with knee osteoarthritis (OA). METHODS: Ground reaction forces during walking were collected from 93 subjects with symptomatic knee OA (self-selected and fast speeds) and 13 healthy controls (self-selected speed) and used to calculate their center of mass (COM) movements, PE and KE relationships, and energy recovery during a stride. Correlations and linear regressions examined the impact of energy fluctuation phase and amplitude, walking velocity, body mass, self-reported pain, and radiographic severity on recovery. Paired t-tests were run to compare energy recovery between cohorts. RESULTS: Symptomatic knee OA subjects displayed lower energetic recovery during self-selected walking speeds than healthy controls (P = 0.0018). PE and KE phase relationships explained the majority (66%) of variance in recovery. Recovery had a complex relationship with velocity and its change across speeds was significantly influenced by the self-selected walking speed of each subject. Neither radiographic OA scores nor subject self-reported measures demonstrated any relationship with energy recovery. CONCLUSIONS: Knee OA reduces effective exchange of PE and KE, potentially increasing the muscular work required to control movements of the COM. Gait retraining may return subjects to more normal patterns of energy exchange and allow them to reduce fatigue.

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Published In

Osteoarthritis Cartilage

DOI

EISSN

1522-9653

Publication Date

June 2014

Volume

22

Issue

6

Start / End Page

747 / 755

Location

England

Related Subject Headings

  • Walking
  • Time Factors
  • Severity of Illness Index
  • Reference Values
  • Prognosis
  • Pain Measurement
  • Osteoarthritis, Knee
  • Mobility Limitation
  • Middle Aged
  • Male
 

Citation

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Sparling, T. L., Schmitt, D., Miller, C. E., Guilak, F., Somers, T. J., Keefe, F. J., & Queen, R. M. (2014). Energy recovery in individuals with knee osteoarthritis. Osteoarthritis Cartilage, 22(6), 747–755. https://doi.org/10.1016/j.joca.2014.04.004
Sparling, T. L., D. Schmitt, C. E. Miller, F. Guilak, T. J. Somers, F. J. Keefe, and R. M. Queen. “Energy recovery in individuals with knee osteoarthritis.Osteoarthritis Cartilage 22, no. 6 (June 2014): 747–55. https://doi.org/10.1016/j.joca.2014.04.004.
Sparling TL, Schmitt D, Miller CE, Guilak F, Somers TJ, Keefe FJ, et al. Energy recovery in individuals with knee osteoarthritis. Osteoarthritis Cartilage. 2014 Jun;22(6):747–55.
Sparling, T. L., et al. “Energy recovery in individuals with knee osteoarthritis.Osteoarthritis Cartilage, vol. 22, no. 6, June 2014, pp. 747–55. Pubmed, doi:10.1016/j.joca.2014.04.004.
Sparling TL, Schmitt D, Miller CE, Guilak F, Somers TJ, Keefe FJ, Queen RM. Energy recovery in individuals with knee osteoarthritis. Osteoarthritis Cartilage. 2014 Jun;22(6):747–755.
Journal cover image

Published In

Osteoarthritis Cartilage

DOI

EISSN

1522-9653

Publication Date

June 2014

Volume

22

Issue

6

Start / End Page

747 / 755

Location

England

Related Subject Headings

  • Walking
  • Time Factors
  • Severity of Illness Index
  • Reference Values
  • Prognosis
  • Pain Measurement
  • Osteoarthritis, Knee
  • Mobility Limitation
  • Middle Aged
  • Male