Ambulatory monitoring of energy expenditure and physical activity levels using the SenseWear ArmbandTM system in Parkinson’s disease

in Movement Disorders : Official Journal of the Movement Disorder Society (2010, June), 25(S2), 355-356

Delayed-Onset Muscle Soreness and its prevention in humans: a proteomic analysis unravels modifications of glycolytic enzymes and contractile proteins expression

Conference (2010, April 24)

Etude de la fatigue dans l'analyse de la marche

in Julia, M.; Perrey, S.; Dupeyron, A. (Eds.) et al Fatigue musculaire (2010)

Fatigue, facteur de risque de lésions musculaires chez le sportif?

in Julia, M.; Perrey, S.; Dupeyron, A. (Eds.) et al Fatigue musculaire (2010)

Evaluation de la fatigue musculaire des membres supérieurs

in Julia, M.; Perrey, S.; Dupeyron, A. (Eds.) et al Fatigue musculaire (2010)

Evaluation isocinétique de la fatigue musculaire au genou : aspects méthodologiques

in JULIA, M.; PERREY, S.; DUPEYRON, A. (Eds.) et al Fatigue musculaire (2010)

Fibromyalgie et affections voisines : analyse du comportement électromyographique au cours d’un effort musculaire isométrique

in Revue du Rhumatisme (2010), 77

Effect of the Lengthening of the Protocol on the Reliability of Muscle Fatigue Indicators

in International Journal of Sports Medicine (2010), 31(2), 82-88

The aim of this study was to examine absolute and relative reliability of fatigue measures calculated from peak torque or total work during 20, 30, 40 and 50 reciprocal maximal concentric contractions ... [more ▼]

The aim of this study was to examine absolute and relative reliability of fatigue measures calculated from peak torque or total work during 20, 30, 40 and 50 reciprocal maximal concentric contractions performed on an isokinetic dynamometer at 180 ° · s " 1 . Eighteen moderately active men performed 50 reciprocal maximal concentric contractions on three occasions with one 7 – 10 days recovery between each session. Peak torque and total work were computed for each contraction and subsequently summed to compute cumulated performance after respectively 20, 30, 40 and 50 repetitions. Muscle fatigue was determined after 20, 30, 40 and 50 repetitions by the fatigue index, the percent decrease in performance and the slope. Reliability of average peak torque or average total work was similar and was not a! ected by the lengthening of the protocol, although a learning e! ect was evident for knee flexors. Reliability of fatigue measures calculated from peak torque or total work was similar, improved with the lengthening of the protocol and was better for knee extensors. Measuring average peak torque or average total work and the slope during a protocol involving 30 maximal reciprocal concentric contractions appear to represent a better compromise between reliability and physiological interpretability of the data. [less ▲]

Fibromyalgia and related conditions: Electromyogram profile during isometric muscle contraction

in Joint Bone Spine (2010), 77

Objectives: To evaluate electromyogram (EMG) profiles in patients with three related conditions: fibromyalgia, chronic fatigue syndrome, and depression. Methods: We studied 44 healthy volunteers, 22 ... [more ▼]

Objectives: To evaluate electromyogram (EMG) profiles in patients with three related conditions: fibromyalgia, chronic fatigue syndrome, and depression. Methods: We studied 44 healthy volunteers, 22 patients with fibromyalgia, 11 patients with chronic fatigue syndrome, and 10 patients admitted for depression. The trapezius electromyogram was recorded during maximally sustained, bilateral, 90◦ abduction of the shoulders. EMG signal frequency and amplitude were measured throughout the test. Results: In the fibromyalgia group, isometric contraction duration was significantly shorter than in the other two patient groups (P < 0.001) and the EMG frequency and amplitude pattern indicated premature discontinuation of the muscle contraction. Findings in the chronic fatigue patients were similar to those in the healthy controls. The patients with depression had a distinctive EMG profile characterized by excessive initial motor-unit recruitment with a shift in the frequency spectrum. Conclusions: Fibromyalgia was associated with a specific EMG pattern indicating premature discontinuation of the muscle contraction. Therefore, maximal voluntary muscle contraction tests may be of limited value for assessing function in fibromyalgia patients. Chronic fatigue syndrome patients had similar EMG findings to those in the healthy controls. The EMG alterations in the patients with depression were consistent with manifestations of psychomotor retardation. [less ▲]

Rehabilitation in osteoarthritis

in Therapy (2010), 7(6), 669-674