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  •   University of Thessaly Institutional Repository
  • Επιστημονικές Δημοσιεύσεις Μελών ΠΘ (ΕΔΠΘ)
  • Δημοσιεύσεις σε περιοδικά, συνέδρια, κεφάλαια βιβλίων κλπ.
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  •   University of Thessaly Institutional Repository
  • Επιστημονικές Δημοσιεύσεις Μελών ΠΘ (ΕΔΠΘ)
  • Δημοσιεύσεις σε περιοδικά, συνέδρια, κεφάλαια βιβλίων κλπ.
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Comparison between leg and arm eccentric exercises of the same relative intensity on indices of muscle damage

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Author
Jamurtas, A. Z.; Theocharis, V.; Tofas, T.; Tsiokanos, A.; Yfanti, C.; Paschalis, V.; Koutedakis, Y.; Nosaka, K.
Date
2005
DOI
10.1007/s00421-005-1345-0
Keyword
Creatine kinase
Elbow flexors
Isokinetic torque
Knee extensors
Muscle soreness
Myoglobin
Range of motion
lactate dehydrogenase
adult
arm exercise
article
body height
body weight
comparative study
controlled study
creatine kinase blood level
elbow
energy recovery
extensor muscle
flexor muscle
human
human experiment
joint mobility
knee
lactate dehydrogenase blood level
leg exercise
male
muscle function
muscle injury
muscle strength
muscle training
myalgia
normal human
priority journal
torque
Exercise
Humans
L-Lactate Dehydrogenase
Muscle, Skeletal
Range of Motion, Articular
Metadata display
Abstract
Many exercise models have demonstrated associations between eccentric muscle actions and muscle damage. However, the magnitude of muscle damage varies among the models. It appears that responses to eccentric exercise are different between leg and arm muscles but this has not been systematically clarified. This study compared leg and arm eccentric exercises of the same relative intensity for indices of muscle damage. Eleven healthy untrained males [Age: 21.2 (1.0) years, Height: 179.4 (3.0) cm, Weight: 78.4 (3.1) kg] performed a sub-maximal eccentric exercise of the knee extensors (LEGS) and the elbow flexors (ARMS), separately. Both LEGS and ARMS consisted of six sets of 12 repetitions with an intensity corresponding to 75% of the predetermined maximal eccentric peak torque (EPT) of each muscle. Range of motion (ROM), delayed onset muscle soreness (DOMS), serum creatine kinase (CK) and lactate dehydrogenase (LDH) activities, myoglobin (Mb) concentration, and muscle strength [EPT and isometric peak torque (IPT)] were assessed before and 24, 48, 72, and 96 h following exercise. Significant (P<0.05) changes in DOMS and ROM were observed up to 96 h after both exercise bouts, and the magnitude of the change was similar between LEGS and ARMS. Increases in CK and Mb were significantly (P<0.05) larger after ARMS than LEGS at 72 and 96 h post-exercise. EPT and IPT were significantly (P<0.05) lower than the baseline up to 96 h post-exercise for ARMS but were fully recovered by 96 h post-exercise for LEGS. Decreases in muscle strength were significantly (p<0.05) larger following ARMS than LEGS at 48, 72, and 96 h post-exercise for EPT, and from 24 h to 96 h post-exercise for IPT. These results suggest that the magnitude of muscle damage is greater and the recovery of muscle function was slower after eccentric exercise of arm elbow flexors than the knee extensors. © Springer-Verlag 2005.
URI
http://hdl.handle.net/11615/28650
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  • Δημοσιεύσεις σε περιοδικά, συνέδρια, κεφάλαια βιβλίων κλπ. [9729]

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