Equal Volumes of High and Low Intensity of Eccentric Exercise in Relation to Muscle Damage and Performance

Send This

Download

Comment

Favourite

more

Rating :

Rate It:

Embed :

Post a comment

Post Comment on Twitter Post Comment on SlideWorld

Comments:

Subscribe to follow-up comments

Notes

Hide Notes

Slide 1 :

Equal Volumes of High and Low Intensity of Eccentric Exercise in Relation to Muscle Damage and Performance Paschalis V.1, Koutedakis Y. 1, Jamurtas A.1, Mougios V. 2, Baltzopoulos V. 1/3 1Department of Physical Education and Sports Sciences, Thessaly University, Trikala, Greece; 2Department of Physical Education and Sports Sciences, Aristotle University, Thessaloniki, Greece. 3Center for Biophysical and Clinical Research into Human Movement, Manchester Metropolitan University, Alsager, UK.

Slide 2 :

Introduction The damaging nature of unaccustomed exercise, particularly that involving eccentric contractions, is well-documented (Friden et al., 1983). Most researchers have used maximal voluntary effort of eccentric exercise to study muscle damage (Brown et al., 1997; Nosaka et al., 1991). There is little information on the effects of submaximal intensity eccentric exercise on muscle damage.

Slide 3 :

Purpose To investigate the effects of two different eccentric exercise protocols of equal work output, one of maximal (MA) and the other of submaximal (SM) effort, on muscle damage indices.

Slide 4 :

Methods 12 male students (21 ± 1 year) Isokinetic dynamometry of knee extensors at 60o/s One eccentric exercise session for each randomly selected leg, 14 days apart

Slide 5 :

Methods (exercise sessions) Session of maximal effort (MA) Subjects accomplished 12 sets of 10 maximal contractions and the total work produced was recorded. Session of submaximal effort (SM) Subjects exercised continuously at 50% of their maximal torque until the work produced equaled that achieved during the MA session.

Slide 6 :

Methods (Assessment) Muscle damage indicators: CK, DOMS Joint function indicator: ROM Time points: pre-exercise, 24, 48 and 72 h post-exercise

Slide 7 :

Methods (statistical analysis) ANOVA and contrast test through simple main effects for DOMS and ROM Chi square analysis for CK

Slide 8 :

Results

Slide 9 :

Results (CK) (*p<0.001 compared to base line data)

Slide 10 :

Results (DOMS) (*p<0.001 compared to base line data)

Slide 11 :

Results (ROM) Results obtained from ROM compared to baseline data.

Slide 12 :

Conclusions Both MA and SM isokinetic knee extensors eccentric exercise can cause muscle damage as shown by changes in CK and DOMS. Equal work output produces muscle damage to the same degree despite the intensity of eccentric exercise.

Slide 13 :

Conclusions MA exercise appears to produce muscle damage that affects the joint function (ROM) (Brown et al., 1997; Nosaka et al., 1991), whereas SM exercise doesn’t seem to affect the joint function.

How to Use Heart Rat...

How to perform and i...

Exercise During Preg...

A Hands On Approach ...

Using Patient Satisf...

My diet and exercise...

Free Powerpoint Templates

	SlidesOnline 5 Years ago.



550 Views, 0 favourite
PowerPoint Presentation on Equal Volumes of High and Low Intensity of Eccentric Exercise in Relatio more PowerPoint Presentation on Equal Volumes of High and Low Intensity of Eccentric Exercise in Relation to Muscle Damage and Performance or PowerPoint Presentation on less
More By User Flag as inappropriate Select your reason for flagging this presentation as inappropriate. If needed, use the feedback form to let us know more details. Cancel