Skeletal muscle design to meet functional demands

Richard L. Lieber, Samuel R. Ward

Research output: Contribution to journalArticlepeer-review

131 Scopus citations

Abstract

Skeletal muscles are length- and velocity-sensitive force producers, constructed of a vast array of sarcomeres. Muscles come in a variety of sizes and shapes to accomplish a wide variety of tasks. How does muscle design match task performance? In this review, we outline muscle's basic properties and strategies that are used to produce movement. Several examples are provided, primarily for human muscles, in which skeletal muscle architecture and moment arms are tailored to a particular performance requirement. In addition, the concept that muscles may have a preferred sarcomere length operating range is also introduced. Taken together, the case is made that muscles can be fine-tuned to perform specific tasks that require actuators with a wide range of properties.

Original languageEnglish (US)
Pages (from-to)1466-1476
Number of pages11
JournalPhilosophical Transactions of the Royal Society B: Biological Sciences
Volume366
Issue number1570
DOIs
StatePublished - May 2011

Keywords

  • Muscle design
  • Sarcomere length
  • Skeletal muscle architecture

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Agricultural and Biological Sciences(all)

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