scholarly journals The Influence of Exercise on Patellar Tendon Reflex

1988 ◽  
Vol 3 (2) ◽  
pp. 75-80
Author(s):  
Seiichirou SHIMADA ◽  
Shinichi SASAKI ◽  
Shinichi IMURA ◽  
Kazuhiro SUZUKI
Keyword(s):  
Patellar Tendon ◽  
Tendon Reflex ◽  
Patellar Tendon Reflex

scholarly journals Assessment of Patellar Tendon Reflex Responses Using Second-Order System Characteristics

2016 ◽  
Vol 2016 ◽  
pp. 1-4 ◽  
Author(s):  
Brett D. Steineman ◽  
Pavan Karra ◽  
Kiwon Park
Keyword(s):  
Decay Rate ◽  
Natural Frequency ◽  
Patellar Tendon ◽  
Exponential Decay ◽  
Second Order ◽  
Order System ◽  
Sample Population ◽  
Exponential Decay Rate ◽  
Tendon Reflex ◽  
Patellar Tendon Reflex

Deep tendon reflex tests, such as the patellar tendon reflex (PTR), are widely accepted as simple examinations for detecting neurological disorders. Despite common acceptance, the grading scales remain subjective, creating an opportunity for quantitative measures to improve the reliability and efficacy of these tests. Previous studies have demonstrated the usefulness of quantified measurement variables; however, little work has been done to correlate experimental data with theoretical models using entire PTR responses. In the present study, it is hypothesized that PTR responses may be described by the exponential decay rate and damped natural frequency of a theoretical second-order system. Kinematic data was recorded from both knees of 45 subjects using a motion capture system and correlation analysis found that the meanR2value was 0.99. Exponential decay rate and damped natural frequency ranges determined from the sample population were −5.61 to −1.42 and 11.73 rad/s to 14.96 rad/s, respectively. This study confirmed that PTR responses strongly correlate to a second-order system and that exponential decay rate and undamped natural frequency are novel measurement variables to accurately measure PTR responses. Therefore, further investigation of these measurement variables and their usefulness in grading PTR responses is warranted.

scholarly journals Motion Analysis of Normal Patellar Tendon Reflex

2013 ◽  
Vol 40 (6) ◽  
pp. 836-841 ◽  
Author(s):  
Lai Kuan Tham ◽  
Noor Azuan Abu Osman ◽  
Wan Abu Bakar Wan Abas ◽  
Kheng Seang Lim
Keyword(s):  
Motion Analysis ◽  
Patellar Tendon ◽  
Essential Element ◽  
Qualitative Description ◽  
Reflex Response ◽  
Healthy Population ◽  
Reflex Amplitude ◽  
Tendon Reflex ◽  
Patellar Tendon Reflex ◽  
Input Strength

Background:Reflex assessment, an essential element in the investigation of the motor system, is currently assessed through qualitative description, which lacks of normal values in the healthy population. This study quantified the amplitude and latency of patellar tendon reflex in normal subjects using motion analysis to determine the factors affecting the reflex amplitude.Methods:100 healthy volunteers were recruited for patellar tendon reflex assessments which were recorded using a motion analysis system. Different levels of input strength were exerted during the experiments.Results:A linear relationship was found between reflex input and reflex amplitude (r = 0.50, P <0.001). The left knee was found to exhibit 26.3% higher reflex amplitude than the right (P <0.001). The Jendrassik manoeuvre significantly increased reflex amplitude by 34.3% (P = 0.001); the effect was especially prominent in subjects with weak reflex response. Reflex latency normality data were established, which showed a gradual reduction with increasing input strength.Conclusion:The quantitative normality data and findings showed that the present method has great potential to objectively quantify deep tendon reflexes.

An Examination of Patellar Tendon Reflex Pre-Motor Conduction Velocity across the Adult Lifespan

2017 ◽  
Vol 49 (5S) ◽  
pp. 1033
Author(s):  
Alejandra Barrera-Curiel ◽  
Ryan J. Colquhoun ◽  
Zachary K. Pope ◽  
Jason M. DeFreitas
Keyword(s):  
Conduction Velocity ◽  
Patellar Tendon ◽  
Motor Conduction Velocity ◽  
Adult Lifespan ◽  
Tendon Reflex ◽  
Patellar Tendon Reflex

PATELLAR TENDON REFLEX LATENCY

1963 ◽  
Vol 42 (2) ◽  
pp. 86???88 ◽  
Author(s):  
G. CLINTON KNOWLTON ◽  
LOUIS P. BRITT
Keyword(s):  
Patellar Tendon ◽  
Reflex Latency ◽  
Tendon Reflex ◽  
Patellar Tendon Reflex

scholarly journals The Reference Values of the T-Wave of the Patellar Tendon Reflex in Normal Dogs

2004 ◽  
Vol 66 (6) ◽  
pp. 659-664
Author(s):  
Yasuaki KAWASAKI ◽  
Masayuki NAGANO ◽  
Shichiro INADA
Keyword(s):  
Patellar Tendon ◽  
Reference Values ◽  
T Wave ◽  
Tendon Reflex ◽  
Patellar Tendon Reflex

scholarly journals Influence of Age on Patellar Tendon Reflex Response

PLoS ONE ◽  
2013 ◽  
Vol 8 (11) ◽  
pp. e80799 ◽  
Author(s):  
Annapoorna Chandrasekhar ◽  
Noor Azuan Abu Osman ◽  
Lai Kuan Tham ◽  
Kheng Seang Lim ◽  
Wan Abu Bakar Wan Abas
Keyword(s):  
Patellar Tendon ◽  
Reflex Response ◽  
Tendon Reflex ◽  
Patellar Tendon Reflex
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