The effects of dynamic stretching on the passive properties of the muscle-tendon unit

Trent J. Herda, Nathan D. Herda, Pablo B. Costa, Ashley A. Walter-Herda, Andrea M. Valdez, Joel T. Cramer

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

The purpose of this study was to examine the effects of dynamic stretching on the passive biomechanical properties and isometric muscle strength of the knee flexors. Fourteen healthy men (mean±s: age=24±3 years) performed passive range of motion assessments and isometric maximal voluntary contractions of the knee flexors at knee joint angles of 35°, 50°, 65°, 80°, and 95° below full knee extension before and after dynamic stretching. In addition, electromyographic amplitude was recorded from the biceps femoris during the maximal voluntary contractions. Passive stiffness and passive resistive torque were measured during pre- and post-dynamic stretching. The dynamic stretching included the participant extending their right leg outwards to the end range motion and pulling their leg back towards the body while seated in the isokinetic dynamometer for four 30-s bouts with 20-s rest between bouts. Passive range of motion increased while passive stiffness and passive resistive torque decreased following dynamic stretching. Peak torque decreased at knee joint angles of 658 and 808 below full extension, while electromyographic amplitude decreased following dynamic stretching. Dynamic stretching resulted in changes to passive stiffness and passive resistive torque that are typically reported following static stretching, however, there were decreases in peak torque at two of the knee joint angles.

Original languageEnglish (US)
Pages (from-to)479-487
Number of pages9
JournalJournal of Sports Sciences
Volume31
Issue number5
DOIs
StatePublished - Apr 1 2013

Fingerprint

Muscle Stretching Exercises
Tendons
Torque
Muscles
Knee Joint
Articular Range of Motion
Knee
Leg
Muscle Strength

Keywords

  • Dynamic stretching
  • Knee flexors
  • Musculotendinous stiffness
  • Musculotendinous unit
  • Passive resistance

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

Cite this

The effects of dynamic stretching on the passive properties of the muscle-tendon unit. / Herda, Trent J.; Herda, Nathan D.; Costa, Pablo B.; Walter-Herda, Ashley A.; Valdez, Andrea M.; Cramer, Joel T.

In: Journal of Sports Sciences, Vol. 31, No. 5, 01.04.2013, p. 479-487.

Research output: Contribution to journalArticle

Herda, Trent J. ; Herda, Nathan D. ; Costa, Pablo B. ; Walter-Herda, Ashley A. ; Valdez, Andrea M. ; Cramer, Joel T. / The effects of dynamic stretching on the passive properties of the muscle-tendon unit. In: Journal of Sports Sciences. 2013 ; Vol. 31, No. 5. pp. 479-487.
@article{a35300532d6641829ab44dc72563d004,
title = "The effects of dynamic stretching on the passive properties of the muscle-tendon unit",
abstract = "The purpose of this study was to examine the effects of dynamic stretching on the passive biomechanical properties and isometric muscle strength of the knee flexors. Fourteen healthy men (mean±s: age=24±3 years) performed passive range of motion assessments and isometric maximal voluntary contractions of the knee flexors at knee joint angles of 35°, 50°, 65°, 80°, and 95° below full knee extension before and after dynamic stretching. In addition, electromyographic amplitude was recorded from the biceps femoris during the maximal voluntary contractions. Passive stiffness and passive resistive torque were measured during pre- and post-dynamic stretching. The dynamic stretching included the participant extending their right leg outwards to the end range motion and pulling their leg back towards the body while seated in the isokinetic dynamometer for four 30-s bouts with 20-s rest between bouts. Passive range of motion increased while passive stiffness and passive resistive torque decreased following dynamic stretching. Peak torque decreased at knee joint angles of 658 and 808 below full extension, while electromyographic amplitude decreased following dynamic stretching. Dynamic stretching resulted in changes to passive stiffness and passive resistive torque that are typically reported following static stretching, however, there were decreases in peak torque at two of the knee joint angles.",
keywords = "Dynamic stretching, Knee flexors, Musculotendinous stiffness, Musculotendinous unit, Passive resistance",
author = "Herda, {Trent J.} and Herda, {Nathan D.} and Costa, {Pablo B.} and Walter-Herda, {Ashley A.} and Valdez, {Andrea M.} and Cramer, {Joel T.}",
year = "2013",
month = "4",
day = "1",
doi = "10.1080/02640414.2012.736632",
language = "English (US)",
volume = "31",
pages = "479--487",
journal = "Journal of Sports Sciences",
issn = "0264-0414",
publisher = "Routledge",
number = "5",

}

TY - JOUR

T1 - The effects of dynamic stretching on the passive properties of the muscle-tendon unit

AU - Herda, Trent J.

AU - Herda, Nathan D.

AU - Costa, Pablo B.

AU - Walter-Herda, Ashley A.

AU - Valdez, Andrea M.

AU - Cramer, Joel T.

PY - 2013/4/1

Y1 - 2013/4/1

N2 - The purpose of this study was to examine the effects of dynamic stretching on the passive biomechanical properties and isometric muscle strength of the knee flexors. Fourteen healthy men (mean±s: age=24±3 years) performed passive range of motion assessments and isometric maximal voluntary contractions of the knee flexors at knee joint angles of 35°, 50°, 65°, 80°, and 95° below full knee extension before and after dynamic stretching. In addition, electromyographic amplitude was recorded from the biceps femoris during the maximal voluntary contractions. Passive stiffness and passive resistive torque were measured during pre- and post-dynamic stretching. The dynamic stretching included the participant extending their right leg outwards to the end range motion and pulling their leg back towards the body while seated in the isokinetic dynamometer for four 30-s bouts with 20-s rest between bouts. Passive range of motion increased while passive stiffness and passive resistive torque decreased following dynamic stretching. Peak torque decreased at knee joint angles of 658 and 808 below full extension, while electromyographic amplitude decreased following dynamic stretching. Dynamic stretching resulted in changes to passive stiffness and passive resistive torque that are typically reported following static stretching, however, there were decreases in peak torque at two of the knee joint angles.

AB - The purpose of this study was to examine the effects of dynamic stretching on the passive biomechanical properties and isometric muscle strength of the knee flexors. Fourteen healthy men (mean±s: age=24±3 years) performed passive range of motion assessments and isometric maximal voluntary contractions of the knee flexors at knee joint angles of 35°, 50°, 65°, 80°, and 95° below full knee extension before and after dynamic stretching. In addition, electromyographic amplitude was recorded from the biceps femoris during the maximal voluntary contractions. Passive stiffness and passive resistive torque were measured during pre- and post-dynamic stretching. The dynamic stretching included the participant extending their right leg outwards to the end range motion and pulling their leg back towards the body while seated in the isokinetic dynamometer for four 30-s bouts with 20-s rest between bouts. Passive range of motion increased while passive stiffness and passive resistive torque decreased following dynamic stretching. Peak torque decreased at knee joint angles of 658 and 808 below full extension, while electromyographic amplitude decreased following dynamic stretching. Dynamic stretching resulted in changes to passive stiffness and passive resistive torque that are typically reported following static stretching, however, there were decreases in peak torque at two of the knee joint angles.

KW - Dynamic stretching

KW - Knee flexors

KW - Musculotendinous stiffness

KW - Musculotendinous unit

KW - Passive resistance

UR - http://www.scopus.com/inward/record.url?scp=84875057150&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84875057150&partnerID=8YFLogxK

U2 - 10.1080/02640414.2012.736632

DO - 10.1080/02640414.2012.736632

M3 - Article

C2 - 23113555

AN - SCOPUS:84875057150

VL - 31

SP - 479

EP - 487

JO - Journal of Sports Sciences

JF - Journal of Sports Sciences

SN - 0264-0414

IS - 5

ER -