Isometric Strength and Endurance in Patients with Severe Rheumatoid Arthritis or Osteoarthrosis in the Knee Joints

Nordesjö, Lars‐Olof; Nordgren, Bengt; Wigren, Anders; Kolstad, Kurt

doi:10.3109/03009748309102902

Cited by 91 publications

(41 citation statements)

References 3 publications

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“…It is well known that patients with knee OA often show muscle weakness 1, 4, 5, 13-15, 17, 26-29) and functional loss 5,13,14,30,31) . With normal aging, there is a decrease in muscle bulk and strength 9,13,[32][33][34] . However, the weakness is not totally caused by an age-related reduction in muscle voluntary activity 4,9) , and it may also result from various other factors.…”

Section: Discussionmentioning

confidence: 99%

Isokinetic Strength and Functional Status in Knee Osteoarthritis

et al. 2006

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Abstract. Muscle function and functional performance are affected in patients with osteoarthritis (OA). The aim of the study was to investigate and compare the concentric torque of knee muscles (quadriceps and hamstring) and functional status in two matched groups: one group of patients with low grade of tibiofemoral OA, and one group of matched healthy subjects. Concentric peak torques of quadriceps and hamstring were measured in both groups at an angular velocity of 90 and 150 degree/second. In addition, selected functional tests, selected lower extremity range of motion (ROM) and thigh girth were assessed in both groups. The independent t-test revealed statistically significant differences between the two groups with regard to isokinetic concentric peak torque at different angular velocities and for the timed walking test, as a measure of functional status. However, no significant difference in lower extremity joints' ROM and thigh girth were seen. In conclusion, patients with knee OA, even in low grades and with minimum symptoms and signs, had muscle weakness and functional limitation in comparison with the matched healthy subjects. This weakness may result from a variety of factors, leading to muscle strength loss and functional limitation.

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Section: Discussionmentioning

confidence: 99%

Isokinetic Strength and Functional Status in Knee Osteoarthritis

et al. 2006

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“…However, the knee extension strength of the subjects with knee OA in this study may have been better than in some studies. 28,36 A lack of testing and reporting standards makes comparisons between studies difficult. Given the moderate severity level of our knee OA cohort, testing.…”

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confidence: 99%

“…36 Muscle strength testing has revealed that those with knee OA have a 25% to 45% loss of knee extension strength 6,15,39 and a 19% to 25% loss of knee…”

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Knee Extension and Flexion Weakness in People With Knee Osteoarthritis: Is Antagonist Cocontraction a Factor?

Heiden¹,

Lloyd

Ackland

2009

J Orthop Sports Phys Ther

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flexion strength, 6,50 compared with similarly aged controls. There are 3 factors thought to contribute to knee extension and flexion weakness in those with knee OA: muscle atrophy, failure of voluntary muscle activity, and apparent weakness from increased antagonist muscle cocontraction. 5 Decreases in muscle cross-sectional area (CSA) have been established in subjects with early OA degenerative changes 22 and in those with severe knee OA. 10Ikeda et al 22 found that women with early degenerative changes in the knee joint had reductions in quadriceps CSA of up to 12%, compared with age-matched women without radiographic changes. Fink et al 10 found atrophy of type 2 fibers and type 1 fibers of the vastus medialis in patients undergoing total joint arthroplasty. Importantly, a smaller lean-muscle CSA in the diseased limb, compared to the contralateral limb, in subjects with OA contributes to muscle weakness but is not the only factor involved. 40Several investigators have examined failure of voluntary muscle activity as a contributing factor in reduced knee extension strength. 12,29,33,40,48 Failure of voluntary activity is the measure of an individual's ability to fully activate their muscles during maximal voluntary contractions. 20 Reductions in muscle activation are due to either an inability to recruit all motor units or a reduction in the motor unit discharge rate. 25 In healthy adults, simulated failure of voluntary activity by saline injection into the knee joint to cause effusion resulted in decreased isometric extension strength and knee extension torque during strength testing 23,31 and increased muscle cocon- Q uadriceps weakness is one of the most common and disabling impairments seen in individuals with knee osteoarthritis (OA).19 Sufficient quadriceps and hamstrings strength, both isometric and dynamic, is essential for undertaking basic activities of daily living such as standing and walking. 36 Muscle strength testing has revealed that those with knee OA have a 25% to 45% loss of knee extension strength 6,15,39 and a 19% to 25% loss of kneeControlled laboratory study, cross-sectional data.To investigate isometric knee flexion and extension strength, failure of voluntary muscle activation, and antagonist cocontraction of subjects with knee osteoarthritis (OA) compared with age-matched asymptomatic control subjects.Quadriceps weakness is a common impairment in individuals with knee OA. Disuse atrophy, failure of voluntary muscle activation, and antagonist muscle cocontraction are thought to be possible mechanisms underlying this weakness; but antagonist cocontraction has not been examined during testing requiring maximum voluntary isometric contraction.Fifty-four subjects with knee OA (mean SD age, 65.6 7.6 years) and 27 similarly aged control subjects (age, 64.2 5.1 years) were recruited for this study. Isometric knee flexion and extension strength were measured, and electromyographic data were recorded, from 7 muscles crossing the knee and used to calculate cocontraction ratios during maximal ef...

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“…슬관절 골관절염은 종창, 통증, 관절의 운동 장애 등의 증상이 나타나며 3) , 동일한 연령대의 건강한 성인에 비하여 대퇴사두 근 근력, 고유수용성감각, 균형의 저하를 보인다 [4][5][6][7] . 슬관절 종창은 척수의 대퇴사두근 알파 운동 뉴런의 억제 메커니즘을 발생시켜 8) , 골관절염 환자의 보행 입각기 초기 50% 동안 근활 성도를 감소시키며, 슬관절 고유수용성 감각 기능을 저하 시킴 이 알려져 있으나 9) , 종창이 없는 슬관절 골관절염 환자에서 슬관절 통증이 대퇴 근력 약화, 고유수용성 감각 저하 및 균형 저하에 미치는 영향에 대해서는 다양한 의견이 있다.…”

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The Effects of Knee Pain on the Quadriceps Strength, Proprioception and Balance in Patients with Knee Osteoarthritis

Kim

Hwang

et al. 2013

Korean J Sports Med

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The purpose of this study was to assess the effects of knee pain on the quadriceps strength, proprioception and balance in subjects with bilateral knee osteoarthritis and the correlation between muscle strength, proprioception, and balance in knee osteoarthritis patients with knee pain. The inclusion criteria were symptomatic and radiographic bilateral knee osteoarthritis (Kellgren-Lawrence grade ≥2), visual analogue scale difference of the both knees ≥2. Thirty three participants (32 women, 1 men: mean age, 59.18 years) underwent assessment of maximal voluntary contraction of quadriceps and hamstring muscles, knee proprioceptive acuity (measure passive joint reposition sense) and balance index using Biodex System 3 isokinetic dynamometer and Biodex balance System. In this study, the more pain knee had weaker quadriceps strength than less pain knee (p＜0.05) but proprioceptive acuity and balance index did not show significant differences in both knees (p＞0.05). Poor proprioception was associated with low quadriceps strength and poor Medio-lateral Stability Index (p＜0.05). Future studies needed to account the influence of pain on neuromuscular factors as well as attempt to further clarify the relationships between these factors.

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Isometric Strength and Endurance in Patients with Severe Rheumatoid Arthritis or Osteoarthrosis in the Knee Joints

Cited by 91 publications

References 3 publications

Isokinetic Strength and Functional Status in Knee Osteoarthritis

Isokinetic Strength and Functional Status in Knee Osteoarthritis

Knee Extension and Flexion Weakness in People With Knee Osteoarthritis: Is Antagonist Cocontraction a Factor?

The Effects of Knee Pain on the Quadriceps Strength, Proprioception and Balance in Patients with Knee Osteoarthritis

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