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Pliometric AND training

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https://www.readbyqxmd.com/read/27163899/evaluation-of-strength-muscle-recovery-with-isokinetic-squat-jump-and-stiffness-tests-in-athletes-with-acl-reconstruction-a-case-control-study
#1
Marco Jacopetti, Andrea Pasquini, Cosimo Costantino
BackgroundThe anterior cruciate ligament (ACL) rupture accounting for about 50% of all knee ligament injuries. The rehabilitation program requires a long time to rebuild muscle strength and to reestablish joint mobility and neuromuscular control. The purpose of the study is to evaluate the muscle strength recovery in athletes with ACL reconstruction. MethodsWe enrolled soccer atlethes, with isolated anterior cruciate ligament rupture treated with bone-patellar tendon-bone autograft artroscopic reconstruction...
2016: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/16677099/mitochondrial-h2o2-production-is-reduced-with-acute-and-chronic-eccentric-exercise-in-rat-skeletal-muscle
#2
A M Molnar, S Servais, M Guichardant, M Lagarde, D V Macedo, L Pereira-Da-Silva, B Sibille, R Favier
Oxidative stress with acute/chronic exercise has been so far examined using exercise involving a combination of concentric and eccentric contractions, but skeletal muscles are likely to be injured to a greater extent by pliometric contractions. In the present study, the effects of acute and chronic bouts of downhill running exercise on mitochondrial hydrogen peroxide (H2O2) generation (fluorimetric detection of a dimer with homovanillic acid in presence of horseradish peroxidase) and oxygen consumption in conjunction with antioxidant enzymes activity were examined...
March 2006: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/9448944/quantitative-measurement-of-resting-skeletal-muscle-ca2-i-following-acute-and-long-term-downhill-running-exercise-in-mice
#3
G S Lynch, C J Fary, D A Williams
Alteration of resting free intracellular [Ca2+] ([Ca2+]i) homeostasis has been implicated in the aetiology of skeletal muscle fibre injury following damaging pliometric (lengthening or 'eccentric') contractions. Quantitative measurements of resting [Ca2+]i in skeletal muscles following acute or long-term exercise involving such injurious contractions have not been performed. We tested the hypothesis that, following an acute bout of pliometric exercise, the maximum force production (Po) of isolated skeletal muscles would be significantly reduced and that this deficit in force would be accompanied by an elevation in resting skeletal muscle [Ca2+]i...
November 1997: Cell Calcium
https://www.readbyqxmd.com/read/3558191/pliometric-activity-of-inspiratory-muscles-maximal-pressure-flow-curves
#4
G P Topulos, M B Reid, D E Leith
We tested the hypothesis that inspiratory muscles, like other skeletal muscles, would exert greater force under pliometric conditions (being lengthened while active) than under isometric or miometric (active shortening) conditions. Maximal inspiratory pressure-flow curves of the respiratory system are analogous to the force-velocity curves for isolated muscle (Agostoni and Fenn, J. Appl. Physiol. 15:349-353, 1960). We measured esophageal pressure (Pes) and plethysmographic flow (V) at relaxation volume of the respiratory system in six trained subjects inspiring maximally through graded resistors (miometric), against a closed airway (isometric), and while constant expiratory flows were forced by a reduced pressure source at the airway opening (pliometric)...
January 1987: Journal of Applied Physiology
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