Factors correlated with running economy among elite middle- and long-distance runners
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Factors correlated with running economy among elite middle- and long-distance runners. / Hansen, Cecilie Eske; Stensvig, Martin Thorhauge; Wienecke, Jacob; Villa, Chiara; Lorentzen, Jakob; Rasmussen, John; Simonsen, Erik Bruun.
In: Physiological Reports, Vol. 9, No. 20, e15076, 2021.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Factors correlated with running economy among elite middle- and long-distance runners
AU - Hansen, Cecilie Eske
AU - Stensvig, Martin Thorhauge
AU - Wienecke, Jacob
AU - Villa, Chiara
AU - Lorentzen, Jakob
AU - Rasmussen, John
AU - Simonsen, Erik Bruun
N1 - © 2021 The Authors. Physiological Reports published by Wiley Periodicals LLC on behalf of The Physiological Society and the American Physiological Society.
PY - 2021
Y1 - 2021
N2 - Running economy (RE) at a given submaximal running velocity is defined as oxygen consumption per minute per kg body mass. We investigated RE in a group of 12 male elite runners of national class. In addition to RE at 14 and 18 km h-1 we measured the maximal oxygen consumption (VO2max) and anthropometric measures including the moment arm of the Achilles tendon (LAch), shank and foot volumes, and muscular fascicle lengths. A 3-D biomechanical movement analysis of treadmill running was also conducted. RE was on average 47.8 and 62.3 ml O2 min-1 kg-1 at 14 and 18 km h-1. Maximal difference between the individual athletes was 21% at 18 km h-1. Mechanical work rate was significantly correlated with VO2 measured in L min-1 at both running velocities. However, RE and relative work rate were not significantly correlated. LAch was significantly correlated with RE at 18 km h-1 implying that a short moment arm is advantageous regarding RE. Neither foot volume nor shank volume were significantly correlated to RE. Relative muscle fascicle length of m. soleus was significantly correlated with RE at 18 km h-1 . Whole body stiffness and leg stiffness were significantly correlated with LAch indicating that a short moment arm coincided with high stiffness. It is concluded that a short LAch is correlated with RE. Probably, a short LAch allows for storage of a larger amount of elastic energy in the tendon and influences the force-velocity relation toward a lower contraction velocity.
AB - Running economy (RE) at a given submaximal running velocity is defined as oxygen consumption per minute per kg body mass. We investigated RE in a group of 12 male elite runners of national class. In addition to RE at 14 and 18 km h-1 we measured the maximal oxygen consumption (VO2max) and anthropometric measures including the moment arm of the Achilles tendon (LAch), shank and foot volumes, and muscular fascicle lengths. A 3-D biomechanical movement analysis of treadmill running was also conducted. RE was on average 47.8 and 62.3 ml O2 min-1 kg-1 at 14 and 18 km h-1. Maximal difference between the individual athletes was 21% at 18 km h-1. Mechanical work rate was significantly correlated with VO2 measured in L min-1 at both running velocities. However, RE and relative work rate were not significantly correlated. LAch was significantly correlated with RE at 18 km h-1 implying that a short moment arm is advantageous regarding RE. Neither foot volume nor shank volume were significantly correlated to RE. Relative muscle fascicle length of m. soleus was significantly correlated with RE at 18 km h-1 . Whole body stiffness and leg stiffness were significantly correlated with LAch indicating that a short moment arm coincided with high stiffness. It is concluded that a short LAch is correlated with RE. Probably, a short LAch allows for storage of a larger amount of elastic energy in the tendon and influences the force-velocity relation toward a lower contraction velocity.
KW - Faculty of Science
KW - Achilles tendon moment arm
KW - Biomechanics
KW - Fascicle length
KW - Running economy
KW - Stiffness
U2 - 10.14814/phy2.15076
DO - 10.14814/phy2.15076
M3 - Journal article
C2 - 34694064
VL - 9
JO - Physiological Reports
JF - Physiological Reports
SN - 2051-817X
IS - 20
M1 - e15076
ER -
ID: 282534266