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Peak power of muscles injured by lengthening contractions
Jun 29, 2006 ... ever, the impact of lengthening contractions on muscle power is poorly ... ity relationship; FL, fiber length; Lo, optimal muscle length; Po, peak ...
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Power loss is greater following lengthening contractions in old
However, lengthening contractions result in muscle damage which can take ...... Barker T (2006) Peak power of muscles injured by lengthening contractions.
[ jwp447q145711w72.pdf - Read/Download File

Peak power is reduced following lengthening contractions despite a
Abstract: Following repetitive lengthening contractions, power (the product of torque and velocity) is .... stant and angular velocity can vary freely, the muscle functions ...... contraction uncoupling: major role in contraction-induced muscle injury.
[ Power-et-al.-2013A-26w9e34.pdf - Read/Download File

Fluctuations in the skeletal muscle power-velocity relationship and
Oct 1, 2012 ... SSC contractions are characterized by repetitive skeletal muscle lengthening ( eccentric) and shortening (concentric) contraction cycles, with ... Figure 1 Peak isometric force, velocity at peak power, and peak power output data ..... medication(s), and/or suffered a lower leg injury during the previous year that ...
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Forces and powers of slow and fast skeletal muscles in mice during
Based on the observation that peak power is 4-fold higher for bundles of fast than .... Soleus muscles are injured much less by lengthening contractions than.
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Stretch Injuries of Skeletal Muscles - SciELO
Forced lengthening or eccentric contraction exercises may, and actually do, exceed ..... Widrick, J. J. & Barker, T. Peak power of muscles injured by lengthening ...
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Exercise-Induced Muscle Damage: Is it detrimental or beneficial?
Lengthening contractions tend to produce the greatest amount of muscle ...... Widrick JJ, Barker T. Peak power of muscles injured by lengthening contractions.
[ 8 Exercise-Induced Muscle Damage Is it detrimental or beneficial. Thiebaud 2012_1_36-44.pdf - Read/Download File

Eccentric Muscle Contractions: Their Contribution to Injury
hiking downhill (eccentric lengthening contractions), one can .... training on muscle power output.116 After 6 weeks of high-force ..... Peak Knee Flexion. 566.
[ lastayo.pdf - Read/Download File

Muscle power attenuation by tendon during - Brown University
Sep 7, 2011 ... The mechanical interplay between muscle contraction and tendon elasticity is critical when ... of tendon during active muscle lengthening have shown that a stretch ... effect could be a reduced peak power input to the muscle fascicles. ...... lengthening contractions associated with injury to skel- etal-muscle ...
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Effects of Power Training on Muscle Thickness of Older Men
May 12, 2014 ... been used to promote increases in peak power, muscle strength and ..... lengthening contractions resulted in more muscle fiber injury. [38] .
[ 12.pdf - Read/Download File

How Tendons Buffer Energy Dissipation by Muscle - Brown University
May 15, 2013 ... energy stored in tendon can provide power outputs that ex- ceed the ... The risk of injury likely depends on the mechanical perfor- mance of muscles during .... muscle fascicles observed for lengthening contractions during controlled .... F3. Fig. 3) presumably had a similar effect of limiting the peak muscle.
[ 26.pdf - Read/Download File

The series-elastic shock absorber: tendons attenuate muscle power
the mechanical function of tendons during lengthening contractions, when muscles absorb energy. ... limiting peak muscle forces, lengthening rates, and power inputs ...... important protective mechanism for the injury-prone hamstring muscles ...
[ Roberts&Azizi2010.pdf - Read/Download File

Effects of a 4-week eccentric training program on the repeated bout
Dec 1, 2011 ... Key words: Lengthening contraction; strength; peak power. Introduction .... ous muscle joint or bone injuries and were considered to be healthy ...
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Simultaneous stiffness and force measurements reveal subtle injury
Key words: muscle injury, eccentric contractions, cytoskeleton, biomechanics, fiber types. Introduction. Muscle structural damage after forced lengthening ( eccentric contraction, EC) .... Finally, the attached cross-bridge generates force during power stroke. .... to stretch), stiffness during isometric contraction and peak muscle ...
[ Benz_MCB_1998.pdf - Read/Download File

Cytoskeletal Disruption After Eccentric Contraction-Induced Muscle
fined as lengthening of an activated muscle). This type of ... eccentric exercise- induced muscle injury.4,19,29 ..... the magnitudes of the power peak height and.
[ Lieber_CORR_2002.pdf - Read/Download File

Contraction coupling efficiency of human first dorsal interosseous
measured the work output in contractions of a single human hand muscle in vivo and of the ..... Peak force, work output, energy input (cost), average ∆GATP during exercise, and ...... Peak power of muscles injured by lengthening contractions.
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Single Muscle Fibre Contractile Properties in Young and Old Men
would have reduced muscle cell size, peak power, peak force and ... concentric contractions. Peak torque ...... lengthening contractions of muscle fibre segments from adult and ... production from MHC and actin contents in muscles injured by.
[ 47.full.pdf - Read/Download File

Effect of Slow-Velocity Lengthening Contractions on Muscle
damage induced by fast-velocity lengthening contractions. J Strength Cond Res ... induce as severe muscle damage as a fast-velocity eccentric exercise can still ... level of 0.05 and a power (1-b) of 0.80. ... Australia) at 200 Hz. An average peak torque from the ..... slow-velocity eccentric exercise were damaged in the sub-.
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Mechanics of the Human Hamstring Muscles during -
Of these injuries, the hamstring muscles are by far the most frequently ..... work represented power generation (concentric contraction) and negative work .... peak in the musculotendon lengthening velocity during swing was always larger than ...
[ Mechanics_of_the_human_hamstring_muscles_during_sprinting.pdf - Read/Download File

Simulation of Biceps Femoris Musculotendon Mechanics during the
long head, the most often injured hamstring muscle (16), lengthens ... sprinting, with peak stretch occurring before foot contact ... femoris may be susceptible to a lengthening contraction ..... of muscle stretch, force, and power development were.
[ msse05b.pdf - Read/Download File

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