Force enhancement during and following muscle stretch of maximal voluntarily activated human quadriceps femoris

Hahn, Daniel; Seiberl, Wolfgang; Schwirtz, Ansgar

doi:10.1007/s00421-007-0462-3

Cited by 47 publications

(97 citation statements)

References 36 publications

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“…It has been well documented that the steady-state isometric force after active stretching is enhanced compared with the corresponding purely isometric reference contractions (Abbott and Aubert, 1952;Edman et al, 1978;Hahn et al, 2007;Herzog and Leonard, 2002;Joumaa et al, 2008a;Minozzo et al, 2013;Pinniger et al, 2006). This phenomenon is called residual force enhancement.…”

Section: Discussionmentioning

confidence: 97%

Energy cost of isometric force production after active shortening in skinned muscle fibres

Joumaa

Fitzowich

2017

Journal of Experimental Biology

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The steady-state isometric force after active shortening of a skeletal muscle is lower than the purely isometric force at the corresponding length. This property of skeletal muscle is known as force depression. The purpose of this study was to investigate whether the energy cost of force production at the steady state after active shortening was reduced compared with the energy cost of force production for a purely isometric contraction performed at the corresponding length (same length, same activation). Experiments were performed in skinned fibres isolated from rabbit psoas muscle. Skinned fibres were actively shortened from an average sarcomere length of 3.0 µm to an average sarcomere length of 2.4 µm. Purely isometric reference contractions were performed at an average sarcomere length of 2.4 µm. Simultaneously with the force measurements, the ATP cost was measured during the last 30 s of isometric contractions using an enzyme-coupled assay. Stiffness was calculated during a quick stretch-release cycle of 0.2% fibre length performed once the steady state had been reached after active shortening and during the purely isometric reference contractions. Force and stiffness following active shortening were decreased by 10.0±1.8% and 11.0±2.2%, respectively, compared with the isometric reference contractions. Similarly, ATPase activity per second (not normalized to the force) showed a decrease of 15.6±3.0% in the force-depressed state compared with the purely isometric reference state. However, ATPase activity per second per unit of force was similar for the isometric contractions following active shortening (28.7± 2.4 mmol l −1 mN -1 s mm 3 ) and the corresponding purely isometric reference contraction (30.9±2.8 mmol l −1 mN −1 s mm 3 ). Furthermore, the reduction in absolute ATPase activity per second was significantly correlated with force depression and stiffness depression. These results are in accordance with the idea that force depression following active shortening is primarily caused by a decrease in the proportion of attached cross-bridges. Furthermore, these findings, along with previously reported results showing a decrease in ATP consumption per unit of force after active muscle stretching, suggest that the mechanisms involved in the steady-state force after active muscle shortening and active muscle lengthening are of distinctly different origin.

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Section: Discussionmentioning

confidence: 97%

Energy cost of isometric force production after active shortening in skinned muscle fibres

Joumaa

Fitzowich

2017

Journal of Experimental Biology

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“…Pinniger and Cresswell (2007) found RFE during submaximal voluntary contractions in the plantar-and dorsiXexor groups, while Hahn et al (2007) did not Wnd RFE in maximally activated human quadriceps femoris. Hahn et al (2007) also reported that peak torques during stretch did not occur at the end of the stretch. This is in contrast to previous experiments on stimulated (Fig.…”

Section: Introductionmentioning

confidence: 93%

“…3 in Lee and Herzog 2002). Furthermore, Hahn et al (2007) reported that muscle activation was signiWcantly reduced during and after stretching. They speculated that the lack of RFE might be due to the size of the tested muscle (m. quadriceps compared to plantar and dorsiXexors or adductor pollicis in previous studies).…”

Section: Introductionmentioning

confidence: 96%

Force–time history effects in voluntary contractions of human tibialis anterior

2009

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When an isometrically activated muscle is stretched or shortened the isometric steady-state force after the length change is increased (residual force enhancement) or decreased (force depression), respectively compared to a purely isometric contraction. This behavior has been observed consistently from the single sarcomere to the whole muscle level. However, the results for voluntary contractions in vivo are controversial and there are no studies for maximal voluntary contractions of medium sized muscles like the human ankle dorsiflexors. We investigated the effect of active muscle stretching and shortening for in vivo human tibialis anterior (n = 12) for maximal voluntary contractions for two magnitudes of stretching (15 degrees and 30 degrees) and two speeds of contraction (10 degrees/s and 45 degrees/s). Torques during stretches were higher compared to the purely isometric reference contractions and peak torques occurred prior to the end of the stretch. During the stretch, muscular activity decreased after peak torque had been reached for the high speed stretch experiments. In the steady-state phase following stretch, torque was increased for all experimental conditions but not for all time periods following stretch. The amount of residual force enhancement was independent of amplitude and speed of stretch. In the steady-state phase following shortening, torques were decreased compared to the isometric reference contractions and force depression was increased with increasing speeds of shortening.

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“…This association is independent of the coupling of new cross bridges actin -myosin that remains after ceased the stimulus (7,17,22,28,33,97).…”

Section: Elastic Components In Parallel Recruitment Theorymentioning

confidence: 94%

“…Another important aspect is that recent studies have observed the manifestation of FD and FE in higher muscle groups and motor gestures more similar to human routine, both in maximal voluntary and submaximal force exertions (27,28,29,30,31). It is noteworthy that although there are many studies proving the existence of FD and FE as well as some hypotheses to explain such behaviors has been raised, no theory is fully accepted to explain such behaviors.…”

Section: The Concept Of Force Depressionmentioning

confidence: 99%

Variation in isometric force after active shortening and lengthening and their mechanisms: a review

Lima

Farinatti²,

Monteiro

et al. 2014

Fisioter. mov.

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Introduction:The isometric force history dependence of skeletal muscle has been studied along the last one hundred years. Several theories have been formulated to explain and establish the causes of the phenomenon, but not successfully, as they have not been fully accepted and demonstrated, and much controversy on such a subject still remains. Objective: To present a systematic literature review on the dynamics of the mechanisms of force depression and force enhancement after active shortening and lengthening, respectively, identifying the key variables involved in the phenomenon, and to date to present the main theories and hypothesis developed trying to explaining it. Method: The procedure of literature searching complied the major databases, including articles either, those which directly investigated the phenomena of force depression and force enhancement or those which presented possible causes and mechanisms associated with their respective events, from the earliest studies published until the year of 2010. Results: 97

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Force enhancement during and following muscle stretch of maximal voluntarily activated human quadriceps femoris

Cited by 47 publications

References 36 publications

Energy cost of isometric force production after active shortening in skinned muscle fibres

Energy cost of isometric force production after active shortening in skinned muscle fibres

Force–time history effects in voluntary contractions of human tibialis anterior

Variation in isometric force after active shortening and lengthening and their mechanisms: a review

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