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January 1, 1996The Journal of PhysiologyOpen Access

Strain of passive elements during force enhancement by stretch in frog muscle fibres.

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Population

Single fibres isolated from the anterior tibialis muscle of Rana temporaria

Comparison

Stretch during fused tetani vs Isometric tetanus without stretch

Design

Preclinical

Authors

KEK. A. P. EdmanAstraZeneca (Sweden)TTT. TsuchiyaKai Research (United States)

Discussion

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Implication

Hypothesis-generating for muscle mechanics; leaves open translation to human cardiac function.

Structured PICO

P
Population
Single fibres isolated from the anterior tibialis muscle of Rana temporaria
I
Intervention
Stretch (0.15 micron per sarcomere) during fused tetani
C
Comparator
Isometric tetanus without stretch
O
Outcome
Force enhancement and excess length change (LS)surrogate

Stretching a muscle fibre during tetanus leads to strain of elastic elements, supporting regions with reduced filament overlap and generating residual force enhancement.

Cite This Study

Edman et al. (1996) studied this question.

synapsesocial.com/papers/6a1bf224ea84844e355f362ehttps://doi.org/10.1113/jphysiol.1996.sp021135
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Changes in sarcomere length during isometric tension development in frog skeletal muscle1972 · 176 citations
  2. 2Residual force enhancement after stretch of contracting frog single muscle fibers.1982 · 373 citations
  3. 3Redistribution of sarcomere length during isometric contraction of frog muscle fibres and its relation to tension creep.1984 · 158 citations
  4. 4Enhancement of mechanical performance by stretch during tetanic contractions of vertebrate skeletal muscle fibres.1978 · 555 citations
  5. 5The effect on tension of non‐uniform distribution of length changes applied to frog muscle fibres.1979 · 288 citations