scholarly journals Reduced knee‐extensor torque production at low to moderate velocities in postmenopausal women with knee osteoarthritis

2021 ◽  
Author(s):  
Carlos Rodriguez‐Lopez ◽  
David Beckwée ◽  
Frank P. Luyten ◽  
Dieter Van Assche ◽  
Evelien Van Roie
Keyword(s):  
Knee Osteoarthritis ◽  
Postmenopausal Women ◽  
Knee Extensor ◽  
Extensor Torque

scholarly journals Reduced rate of knee extensor torque development in older adults with knee osteoarthritis is associated with intrinsic muscle contractile deficits

2015 ◽  
Vol 72 ◽  
pp. 16-21 ◽  
Author(s):  
Damien M. Callahan ◽  
Timothy W. Tourville ◽  
James R. Slauterbeck ◽  
Philip A. Ades ◽  
Jennifer Stevens-Lapsley ◽  
...  
Keyword(s):  
Older Adults ◽  
Knee Osteoarthritis ◽  
Knee Extensor ◽  
Intrinsic Muscle ◽  
Reduced Rate ◽  
Extensor Torque ◽  
Muscle Contractile ◽  
Torque Development

scholarly journals Relationship between knee extensor torque and physical function in men with early knee osteoarthritis

2014 ◽  
Vol 22 ◽  
pp. S436
Author(s):  
L.F. Selistre ◽  
G.H. Gonçalves ◽  
M. Petrella ◽  
S.M. Mattiello
Keyword(s):  
Knee Osteoarthritis ◽  
Physical Function ◽  
Knee Extensor ◽  
Extensor Torque

scholarly journals Incidence of Secondary Hyperparathyroidism among Postmenopausal Women with End-Stage Knee Osteoarthritis

2009 ◽  
Vol 17 (3) ◽  
pp. 310-312 ◽  
Author(s):  
Kyriakos A Papavasiliou ◽  
Eustathios I Kenanidis ◽  
Michael E Potoupnis ◽  
Ioannis K Sarris ◽  
John M Kirkos ◽  
...  
Keyword(s):  
Knee Osteoarthritis ◽  
Secondary Hyperparathyroidism ◽  
Postmenopausal Women ◽  
End Stage

scholarly journals Knee extensor torque of men with early degrees of osteoarthritis is associated with pain, stiffness and function

2012 ◽  
Vol 16 (4) ◽  
pp. 289-294 ◽  
Author(s):  
Paula R. M. S. Serrão ◽  
Karina Gramani-Say ◽  
Giovanna C. Lessi ◽  
Stela M. Mattiello
Keyword(s):  
Knee Extensor ◽  
Extensor Torque ◽  
And Function

scholarly journals Should We Use Unilateral or Bilateral Tasks to Assess Maximal and Explosive Knee Extensor Strength in Patients with Knee Osteoarthritis? A Cross-Sectional Study

2021 ◽  
Vol 10 (19) ◽  
pp. 4353
Author(s):  
Jonas Pfeifle ◽  
David Hasler ◽  
Nicola Maffiuletti
Keyword(s):  
Knee Osteoarthritis ◽  
Clinical Relevance ◽  
Knee Extensor ◽  
Cross Sectional Study ◽  
Cross Sectional ◽  
Strength Performance ◽  
Explosive Strength ◽  
Knee Extensor Strength ◽  
And Performance ◽  
Voluntary Contractions

Deficits in maximal and explosive knee extensor strength, which are usually assessed with unilateral tasks, are substantial in patients with knee osteoarthritis (KOA). The aim of this study was to investigate the clinical relevance of unilateral vs. bilateral tasks for assessing knee extensor strength in patients with KOA. This was achieved primarily by comparing unilateral and bilateral inter-limb strength asymmetries and secondarily by examining the relationship between unilaterally and bilaterally measured strength, and performance-based and self-reported function. Twenty-four patients with unilateral KOA (mean age: 65 ± 7 years) performed isometric gradual and explosive maximal voluntary contractions to assess, respectively their maximal and explosive strength. Performance-based and self-reported function were also evaluated with standard functional tests and questionnaires, respectively. Inter-limb asymmetries of maximal and explosive strength did not differ significantly between unilateral (mean asymmetry: 26 ± 15%) and bilateral tasks (22 ± 21%). In the same way, the relationships between knee extensor strength—measured either unilaterally or bilaterally—and performance-based or self-reported function were not influenced by the type of task. In conclusion, it does not seem to make a difference in terms of clinical relevance whether maximal and explosive knee extensor strength are evaluated with unilateral or bilateral tasks in KOA patients.

Effects of short-wave therapy in patients with knee osteoarthritis: a systematic review and meta-analysis

2016 ◽  
Vol 31 (5) ◽  
pp. 660-671 ◽  
Author(s):  
Haiming Wang ◽  
Chi Zhang ◽  
Chengfei Gao ◽  
Siyi Zhu ◽  
Lijie Yang ◽  
...  
Keyword(s):  
Knee Osteoarthritis ◽  
Meta Analysis ◽  
Strength Function ◽  
Knee Extensor ◽  
Short Wave ◽  
Pain Scale ◽  
Control Group ◽  
Continuous Variables ◽  
Significant Difference ◽  
Evidence Database

Objective: To evaluate the efficacy and safety of short-wave therapy with sham or no intervention for the management of patients with knee osteoarthritis. Methods: We searched the following databases from their inception up to 26 October 2016: MEDLINE, CENTRAL, EMBASE, Physiotherapy Evidence Database, CINAHL and OpenGrey. Studies included randomized controlled trials compared with a sham or no intervention in patients with knee osteoarthritis. The results were calculated via standardized mean difference (SMD) and risk ratio for continuous variables outcomes as well as dichotomous variables, respectively. Heterogeneity was explored by the I2 test and inverse-variance random effects analysis was applied to all studies. Results: Eight trials (542 patients) met the inclusion criteria. The effect of short-wave therapy on pain was found positive (SMD, −0.53; 95% CI, −0.84 to −0.21). The pain subgroup showed that patients received pulse modality achieved clinical improvement (SMD, –0.83; 95% CI, –1.14 to −0.52) and the pain scale in female patients decreased (SMD, −0.53; 95% CI, −0.98 to −0.08). In terms of extensor strength, short-wave therapy was superior to the control group ( p < 0.05, I2 = 0%). There was no significant difference in the physical function (SMD, −0.16; 95% CI, −0.36 to 0.05). For adverse effects, there was no significant difference between the treatment and control group. Conclusion: Short-wave therapy is beneficial for relieving pain caused by knee osteoarthritis (the pulse modality seems superior to the continuous modality), and knee extensor muscle combining with isokinetic strength. Function is not improved.

scholarly journals Muscle pain from an intramuscular injection of hypertonic saline increases variability in knee extensor torque reproduction

2020 ◽  
Author(s):  
Samuel Andrew Smith ◽  
Dominic Micklewright ◽  
Samantha Lee Winter ◽  
Alexis R. Mauger
Keyword(s):  
Hypertonic Saline ◽  
Muscle Pain ◽  
Intramuscular Injection ◽  
Vastus Lateralis ◽  
Isotonic Saline ◽  
Knee Extensor ◽  
Knee Extensors ◽  
Saline Control ◽  
Reproduction Task ◽  
Extensor Torque

Purpose: The intensity of exercise-induced pain (EIP) reflects the metabolic environment in the exercising muscle, so during endurance exercise this may inform the intelligent regulation of work rate. Conversely, the acute debilitating effects of EIP on motor unit recruitment could impair the estimation of force produced by the muscle and impair judgement of current exercise intensity. This study investigated whether muscle pain that feels like EIP, administered via intramuscular injection of hypertonic saline, interferes with the ability to accurately reproduce torque in a muscle group relevant to locomotive exercise. Methods: On separate days, fourteen participants completed an isometric torque reproduction task of the knee extensors. Participants were required to produce torque at 15 and 20% maximal voluntary torque (MVIT), without visual feedback before (Baseline), during (Pain/No Pain), and after (Recovery) an injection of 0.9% isotonic saline (Control) or 5.8% hypertonic saline (Experimental) into the vastus lateralis of the right leg. Results: An elevated reported intensity of pain, and a significantly increased variance in mean contraction torque at both 15% (P=0.049) and 20% (P=0.002) MVIT was observed in the Experimental compared to the Control condition. Both 15 and 20% target torques were performed at a similar pain intensity in the Experimental condition (15% MVIT, 4.2 ± 1.9; 20% MVIT, 4.5 ± 2.2; P>0.05). Conclusion: These findings demonstrate that the increased muscle pain from the injection of hypertonic saline impeded accurate reproduction of knee extensor torque. These findings have implications for the detrimental impact of EIP on exercise regulation and endurance performance.

scholarly journals Knee Extensor Torque Variability Correlates With Impaired Functional Knee Kinetics After ACLR In Collegiate Athletes

2020 ◽  
Vol 52 (7S) ◽  
pp. 244-244
Author(s):  
Tyler J. Roehl ◽  
Daniel G. Cobian ◽  
Mikel R. Stiffler-Joachim ◽  
Jennifer L. Sanfilippo ◽  
Bryan C. Heiderscheit
Keyword(s):  
Knee Extensor ◽  
Collegiate Athletes ◽  
Knee Kinetics ◽  
Extensor Torque

Reduced knee-extensor torque steadiness and higher motor unit discharge rate variability in individuals with patellofemoral pain

Physiotherapy ◽  
2019 ◽  
Vol 105 ◽  
pp. e46
Author(s):  
E. Martinez-Valdes ◽  
G. Boccia ◽  
M. Nawaz ◽  
F. Negro ◽  
A. Rainoldi ◽  
...  
Keyword(s):  
Motor Unit ◽  
Discharge Rate ◽  
Knee Extensor ◽  
Patellofemoral Pain ◽  
Unit Discharge ◽  
Motor Unit Discharge ◽  
Extensor Torque
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