Equal volumes of high and low intensity of eccentric exercise in relation to muscle damage and performance.
Cast your vote
You can rate an item by clicking the amount of stars they wish to award to this item.
When enough users have cast their vote on this item, the average rating will also be shown.
Your vote was cast
Thank you for your feedback
Thank you for your feedback
Jamurtas, Athanasios Z.
MetadataShow full item record
AbstractWe examined differences in muscle damage and muscle performance perturbations in relation to the same volumes of high (HI) and low intensity (LI) of eccentric exercise. Untrained young healthy men (n = 12) underwent 2 isokinetic quadriceps eccentric exercise sessions, 1 on each randomly selected leg, separated by a 2-week interval. In the first session subjects performed HI exercise (i.e., 12 sets of 10 maximal voluntary efforts). In the second session, volunteers were subjected to continuous exercise of LI (50% of peak torque) until the total work done was approximately equal to that generated during HI. Muscle damage (serum creatine kinase concentration [CK], delayed onset of muscle soreness, and range of motion) and muscle performance (eccentric [EPT] and isometric peak torque [IPT]) indicators were assessed pre-exercise and 24, 48, 72, and 96 hours postexercise. Compared to baseline data, changes in muscle damage indicators were significantly different (p < 0.05) at almost all postexercise time points in both conditions. However, apart from the significant elevation of CK at 24 hours after HI (p < 0.05), no other significant differences were observed between the 2 exercise conditions (p > 0.05). The main finding in relation to muscle performance was that decrements following HI exercise were significantly greater (p < 0.05) compared to LI. Compared with baseline data, the EPT values following HI and LI exercise were as follows: 24 hours, 72.1% vs. 92%; 48 hours, 81.9% vs. 94.8%; 72 hours, 77.7% vs. 100.6%; 96 hours, 86.8% vs. 107.9%. The corresponding data for IPT were as follows: 24 hours, 86.4% vs. 102.8%; 48 hours, 84.2% vs. 107%; 72 hours, 84.8% vs. 109.2%; 96 hours, 86.8% vs. 114.4%. These results indicate that matching volumes of HI and LI eccentric exercise have similar effects on muscle damage, but HI has a more prominent effect on muscle performance.
CitationJournal of strength and conditioning research, 19(1): 184-8
PublisherHuman Kinetics Publishers, Inc.
JournalJournal of strength and conditioning research / National Strength & Conditioning Association
- Short vs. long length of rectus femoris during eccentric exercise in relation to muscle damage in healthy males.
- Authors: Paschalis V, Koutedakis Y, Baltzopoulos V, Mougios V, Jamurtas AZ, Giakas G
- Issue date: 2005 Jul
- Comparison between leg and arm eccentric exercises of the same relative intensity on indices of muscle damage.
- Authors: Jamurtas AZ, Theocharis V, Tofas T, Tsiokanos A, Yfanti C, Paschalis V, Koutedakis Y, Nosaka K
- Issue date: 2005 Oct
- Greater muscle damage induced by fast versus slow velocity eccentric exercise.
- Authors: Chapman D, Newton M, Sacco P, Nosaka K
- Issue date: 2006 Aug
- Muscle damage and repeated bout effect induced by enhanced eccentric squats.
- Authors: Coratella G, Chemello A, Schena F
- Issue date: 2016 Dec
- A Comparison of Exercise-Induced Muscle Damage Following Maximal Eccentric Contractions in Men and Boys.
- Authors: Deli CK, Fatouros IG, Paschalis V, Georgakouli K, Zalavras A, Avloniti A, Koutedakis Y, Jamurtas AZ
- Issue date: 2017 Aug