Effects of Exercise and Physical Activity on Knee Osteoarthritis

Esser, Stephan; Bailey, Allison

doi:10.1007/s11916-011-0225-z

Cited by 79 publications

(52 citation statements)

References 74 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…34 Specifically, OA patients have shown a significant decrease in pain, [23][24][25][26][27][28] a reduction in joint stiffness, 26,27 an increase in joint range of motion, 28 and an improvement in functional performance 23,26 following NMES training. Although we cannot establish a direct causative association between muscle strength and health status, stronger knee extensor muscles are thought to decrease impact forces at the knee joint, 16,17 and might reduce the mechanical stimuli for pain, 18 thereby relieving the pain symptoms of the patients.…”

Section: Discussionmentioning

confidence: 99%

Neuromuscular electrical stimulation (NMES) reduces structural and functional losses of quadriceps muscle and improves health status in patients with knee osteoarthritis

Vaz¹,

Baroni²,

Geremia³

et al. 2012

Journal Orthopaedic Research

View full text Add to dashboard Cite

Knee osteoarthritis (OA) is associated with quadriceps atrophy and weakness, so muscle strengthening is an important point in the rehabilitation process. Since pain and joint stiffness make it often difficult to use conventional strength exercises, neuromuscular electrical stimulation (NMES) may be an alternative approach for these patients. This study was aimed at (1) identifying the associations of knee OA with quadriceps muscle architecture and strength, and (2) quantifying the effects of a NMES training program on these parameters. In phase 1, 20 women with knee OA were compared with 10 healthy female, asymptomatic, age-matched control subjects. In phase 2, 12 OA patients performed an 8-week NMES strength training program. OA patients presented smaller vastus lateralis thickness (11.9 mm) and fascicle length (20.5%) than healthy subjects (14.1 mm; 24.5%), and also had a 23% smaller knee extensor torque compared to the control group. NMES training increased vastus lateralis thickness (from 12.6 to 14.2 mm) and fascicle length (from 19.6% to 24.6%). Additionally, NMES training increased the knee extensor torque by 8% and reduced joint pain, stiffness, and functional limitation. In conclusion, OA patients have decreased strength, muscle thickness, and fascicle length in the knee extensor musculature compared to control subjects. NMES training appears to offset the changes in quadriceps structure and function, as well as improve the health status in patients with knee OA. Keywords: osteoarthritis; muscle architecture; muscle strength; WOMAC; electrical stimulation Osteoarthritis (OA) is one of the major degenerative diseases and it affects elderly women more frequently than elderly men.1,2 The prevalence of OA is expected to increase dramatically in the near future due to the increased life expectancy and an increasing rate of obesity of the world population.3 The knee is the most affected joint with 13.6% of women above 60 years showing radiographic evidence of OA and/or clinical symptoms. 2OA causes erosion of articular cartilage, weakening of subchondral bone, meniscal degeneration, inflammation of the synovium, and intra-articular osteophytes. 4 These changes lead to a reduction in the range of motion, and increase in joint stiffness and pain. 5In addition to the effects on the joint structure and function, OA also has a negative effect on the musculoskeletal system. Patients with knee OA have decreased knee extensor strength compared to healthy subjects 6-10 and compared to the healthy contralateral limb.11,12 Evidence also suggests that the muscle weakness is associated with a decrease in muscle mass. 11,12However, although a reduction in muscle thickness 11 and anatomical cross-sectional area 12 have been described in OA patients, we were unable to find evidence on how muscle weakness was related to changes in other muscle architecture parameters associated with strength, such as fascicle length, and pennation angle.Fascicle length is related to the number of sarcomeres aligned in series in the ...

show abstract

Section: Discussionmentioning

confidence: 99%

Neuromuscular electrical stimulation (NMES) reduces structural and functional losses of quadriceps muscle and improves health status in patients with knee osteoarthritis

Vaz¹,

Baroni²,

Geremia³

et al. 2012

Journal Orthopaedic Research

View full text Add to dashboard Cite

show abstract

“…Engaging in a physically active lifestyle delays disability and promotes OA-specific benefits, including maintaining physical function and decreasing pain, depression, and fatigue (3)(4)(5)(6). Physical activity has been shown to delay the progression of OA and of functional limitations (7).…”

Section: Introductionmentioning

confidence: 99%

Physical Activity Patterns Among Older Adults With and Without Knee Osteoarthritis in Six European Countries

Herbolsheimer

Schaap

Edwards

et al. 2016

Arthritis Care & Research

View full text Add to dashboard Cite

Objective. To investigate patterns of physical activity in older adults with knee osteoarthritis (OA) compared to older adults without knee OA across 6 European countries. We expect country-specific differences in the physical activity levels between persons with knee OA compared to persons without knee OA. A varying degree of physical activity levels across countries would express a facilitating or impeding influence of the social, environmental, and other contextual factors on a physically active lifestyle. Methods. Baseline cross-sectional data from the European Project on Osteoarthritis were analyzed. In total, 2,551 participants from 6 European countries (Germany, Italy, The Netherlands, Spain, Sweden, and the UK) were included. Results. Participants with knee OA were less likely to follow physical activity recommendations and had poorer overall physical activity profiles than those without knee OA (mean 62.9 versus 81.5 minutes/day, respectively; P 5 0.015). The magnitude of this difference varied across countries. Detailed analysis showed that low physical activity levels in persons with knee OA could be attributed to less everyday walking time (odds ratio 1.31, 95% confidence interval 1.07-1.62). Conclusion. This study highlighted the fact that having knee OA is associated with a varying degree of physical activity patterns in different countries. This national variation implies that low levels of physical activity among persons with knee OA cannot be explained exclusively by individual or disease-specific factors, but that social, environmental, and other contextual factors should also be taken into account.

show abstract

“…Esser and Bailey [11] concluded that exercising can be a powerful medicine for patients with knee OA. Carvalho et al [5] found that home exercising (printed manual) with monthly reassessment by physiotherapist allowed in patients with knee OA to achieve a significant improvement in pain, knee ROM during flexion, muscle strength and functional capacity.…”

Section: Discussionmentioning

confidence: 99%

Motor performance in patients with knee osteoarthritis after 8-week home exercise program

Sokk

Rätsepsoo

Kums

et al. 2018

AKUT

View full text Add to dashboard Cite

On patients with knee osteoarthritis (OA) the muscle strength, gait and everyday activities performance capacity decreased, though patients care started many years before. Patients care includes supervised physio therapy sessions and home exercise performing. Research goal was to assess the improvement in patients with knee OA motor performance with home exercise program (HEP) 8-weeks before total knee arthroplasty (TKA). Hypothesis: 8-week HEP improve legs motor performance in patients with knee OA. Ten female patients with knee OA with the mean (±SE) age of 62.7±2.3 yrs; ten age-and gender-matched healthy controls with the mean (±SE) age of 62.6±1.1 yrs. Motor performance was assessed by isometric strength of the quadriceps femoris (QF) and hamstring (HM) muscles, gait, Five-Time-Sit-to-Stand (FTSTS) test and knee active range of motion (aROM) before and after 8-week HEP. Outcome was measured by Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC). After 8-week HEP, QF and HM isometric strength, knee aROM during flexion and the gait stride length for the involved leg increased (p<0.05) compared to pre-exercising level. The WOMAC score increased and FTSTS test time shortened (p<0.05) after 8-week HEP. Difference in measured parameters between the patients involved leg decreased as compared to uninvolved leg and controls. Study showed that after 8-week HEP improved involved leg thigh's muscle strength, knee aROM, and stride length. Sit to stand test performance and patient's Acta Kinesiologiae Universitatis Tartuensis, 2017. Vol. 23, pp. 74-85 https://doi.org/10.12697/akut.2017 J Sokk, M Rätsepsoo, T Kums, J Ereline, T Haviko, H Gapeyeva, M Pääsuke Motor performance in patients with knee osteoarthritis after 8-week home exercise programMotor performance in patients with knee osteoarthritis after 8-week home exercise program | 75 self-assessed condition improved. In conclusion, HEP with at least 8 weeks should be recommended for patients with knee OA before TKA.

show abstract

Effects of Exercise and Physical Activity on Knee Osteoarthritis

Cited by 79 publications

References 74 publications

Neuromuscular electrical stimulation (NMES) reduces structural and functional losses of quadriceps muscle and improves health status in patients with knee osteoarthritis

Neuromuscular electrical stimulation (NMES) reduces structural and functional losses of quadriceps muscle and improves health status in patients with knee osteoarthritis

Physical Activity Patterns Among Older Adults With and Without Knee Osteoarthritis in Six European Countries

Motor performance in patients with knee osteoarthritis after 8-week home exercise program

Contact Info

Product

Resources

About