Relationship between muscle volume and contractile properties of the human knee extensors

2016 ◽  
Vol 41 (1) ◽  
pp. 110-113 ◽  
Author(s):  
Martin Behrens ◽  
Niklas Brown ◽  
Robert Bollinger ◽  
Dieter Bubeck ◽  
Anett Mau-Moeller ◽  
...  
Keyword(s):  
Knee Flexion ◽  
Femoral Nerve ◽  
Quadriceps Muscle ◽  
Muscle Volume ◽  
Contractile Properties ◽  
Knee Extensors ◽  
Resonance Imaging ◽  
Human Knee ◽  
The Relationship ◽  
Stimulation Of

The present study was designed to investigate the relationship between volume and electrically evoked twitch properties of the quadriceps muscle. Supramaximal single and doublet stimulation of the femoral nerve was used to assess contractile properties at 45° and 80° knee flexion. Muscle volume was measured using a 1.5-Tesla magnetic resonance imaging scanner. Quadriceps muscle volume was only significantly correlated (r = 0.629) with peak twitch torque induced by doublet stimulation at 80° but not at 45° knee flexion.

Comparison of methods to assess quadriceps muscle volume using magnetic resonance imaging

2009 ◽  
Vol 30 (5) ◽  
pp. 1116-1123 ◽  
Author(s):  
Antoine Nordez ◽  
Erwan Jolivet ◽  
Ingrid Südhoff ◽  
Dominique Bonneau ◽  
Jacques A. de Guise ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Quadriceps Muscle ◽  
Muscle Volume ◽  
Comparison Of Methods ◽  
Resonance Imaging

scholarly journals The Relationship Between Spasticity and Muscle Volume of the Knee Extensors in Children With Cerebral Palsy

2012 ◽  
Vol 24 (2) ◽  
pp. 177-181 ◽  
Author(s):  
Samuel R. Pierce ◽  
Laura A. Prosser ◽  
Samuel C. K. Lee ◽  
Richard T. Lauer
Keyword(s):  
Cerebral Palsy ◽  
Muscle Volume ◽  
Knee Extensors ◽  
Children With Cerebral Palsy ◽  
The Relationship

scholarly journals Muscle Atrophy and Functional Deficits of Knee Extensors and Flexors in People With Chronic Stroke

2012 ◽  
Vol 92 (3) ◽  
pp. 429-439 ◽  
Author(s):  
Christiane L. Prado-Medeiros ◽  
Milla P. Silva ◽  
Giovanna C. Lessi ◽  
Marcela Z. Alves ◽  
Alberto Tannus ◽  
...  
Keyword(s):  
Motor Function ◽  
Muscle Atrophy ◽  
Peak Torque ◽  
Quadriceps Muscle ◽  
Chronic Stroke ◽  
Muscle Volume ◽  
Knee Extensors ◽  
Control Group ◽  
Hamstring Muscle ◽  
Paretic Limb

BackgroundFurther clarification is needed with regard to the degree of atrophy in individual muscle groups and its possible relationship to joint torque deficit poststroke.ObjectiveThe purpose of this study was to investigate quadriceps and hamstring muscle volume and strength deficits of the knee extensors and flexors in people with chronic hemiparesis compared with a control group.DesignThis was a cross-sectional study.MethodsThirteen individuals with hemiparesis due to chronic stroke (hemiparetic group) and 13 individuals who were healthy (control group) participated in this study. Motor function, quadriceps and hamstring muscle volume, and maximal concentric and eccentric contractions of the knee extensors and flexors were assessed.ResultsOnly the quadriceps muscle of the paretic limb showed reduced muscle volume (24%) compared with the contralateral (nonparetic) limb. There were no differences in muscle volume between the hemiparetic and control groups. The peak torque of the paretic-limb knee extensors and flexors was reduced in both contraction modes and velocities compared with the nonparetic limb (36%–67%) and with the control group (49%–75%). The nonparetic limb also showed decreased extensor and flexor peak torque compared with the control group (17%–23%). Power showed similar deficits in strength (12%–78%). There were significant correlations between motor function and strength deficits (.54–.67).LimitationsMagnetic resonance imaging coil length did not allow measurement of the proximal region of the thigh.ConclusionsThere were different responses between quadriceps and hamstring muscle volumes in the paretic limb that had quadriceps muscle atrophy only. However, both paretic and nonparetic limbs showed knee extensor and flexor torque and power reduction.

A More Efficient Magnetic Resonance Imaging???Based Strategy for Measuring Quadriceps Muscle Volume

2003 ◽  
Vol 35 (3) ◽  
pp. 425-433 ◽  
Author(s):  
BRIAN L. TRACY ◽  
FRED M. IVEY ◽  
E. JEFFREY METTER ◽  
JEROME L. FLEG ◽  
ELIOT L. SIEGEL ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Quadriceps Muscle ◽  
Muscle Volume ◽  
Resonance Imaging

scholarly journals Quadriceps Muscle Strength Recovery With the Use of High Tone Power Therapy After ACL Reconstruction: a Randomized Controlled Trial

2020 ◽  
Author(s):  
Katarzyna Ogrodzka-Ciechanowicz ◽  
Grzegorz Głąb ◽  
Jakub Ślusarski ◽  
Artur Gądek
Keyword(s):  
Muscle Strength ◽  
Acl Reconstruction ◽  
Controlled Trial ◽  
Cruciate Ligament ◽  
Quadriceps Muscle ◽  
Knee Extensors ◽  
Control Group ◽  
High Tone ◽  
Randomized Controlled ◽  
Stimulation Of

Abstract BackgroundA relatively new method of electrotherapy is High Tone Power Therapy. It directly affects cell metabolism, improving metabolic processes in tissues, and pain relief. It can also be used to obtain stimulating effects of the current, in this case also for electro stimulation of the quadriceps. The aim was to assess the effectiveness of electro stimulation of the quadriceps muscle in patients after ACL reconstruction, with the use of High Tone Power Therapy.MethodsIn pre post treatment randomized controlled trial took part thirty-five patients after anterior cruciate ligament reconstruction. The tests were carried prior to and 6 months following the ACL reconstruction. After the surgery, the patients were randomly divided into two research groups – experimental group (17 patients) had the High Tone Power Therapy included in rehabilitation, while the control group (18 patients) was without the High Tone Power Therapy. All patients were subjected to 6-month rehabilitation. Research tools included the measurement of muscle strength torque, ROM, knee and thigh circumference measurements, the Lysholm and the VAS scale ResultsThe analysis showed that there were no statistically significant differences in the measurement of maximum muscle torque of knee extensors between groups and measurements. The analysis did not show any statistically significant differences in other analyzed variables.ConclusionsHigh Tone Power Therapy used in the rehabilitation of patients after ACL reconstruction does not significantly affect the strength of the quadriceps muscle and the function of the knee joint.Trail Registration This study was registered retrospectively in the Australian New Zealand Clinical Trials Registry (ANZCTR). Registration number: ACTRN12616001416482.

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