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441700
Exercise-Induced Muscle Damage (EIMD)
Description
Mind Map on Exercise-Induced Muscle Damage (EIMD), created by dw330 on 12/15/2013.
Mind Map by
dw330
, updated more than 1 year ago
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Created by
dw330
about 11 years ago
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Resource summary
Exercise-Induced Muscle Damage (EIMD)
Mechanisms
Eccentric contractions
Sarcomeres damaged (Tekakura et al, 01)
Membrane damaged
Efflux of muscle proteins (e.g CK)
E-C coupling dysfunction
Loss of strength (Brockett et al, 01)
Influx of Ca2+
Proteolytic pathways activated
DOMS
Markers
Direct
Hortobagyi (98)
Morphological changes
Z-line disruption
Type II pref
Indirect
Clarkson et al (92) Byrne + Eston (02)
DOMS
Annotations:
peaks @24-48h; full recovery 96h
Protein efflux e.g CK
Strength loss
Annotations:
most reliable marker
Effect on Performace
Endurance
4% < TTE (Marcora + Bosio, 07)
> VE, RER, RPE, La for 3-4 days (Chen et al, 07) < running economy via stride-length (Chen et al, 09)
Byrne + Eston (02; 02a)
Wingate
Jump height
reduced for 3 days SSC attenuates effects
Highton et al (09)
Sprint
< 5% @24h+48h
Agility
< 5% @24h < 8%@48h
Physiological Response
VO2
< TTE = VO2 = VO2max > VE > fR
Muscle O2
slower HHb response despite identical uptake kinetics (Kano et al, 05)
> RPE
Metabolic
Davies et al (11)
> Pi
< La
> PCr
Interventions
Training
Repeated bout effect (Marginson et al, 05)
< strength loss; < pain
< CK activity (Evans et al, 86)
Drugs
NSAIDs
< DOMS; < strength (Tokmakidis et al, 03)
Supplements
Tart Cherry Juice
< strength loss; < pain (Connolly et al, 06)
Cryotherapy
10-min cold water immersion (Jakeman et al, 09)
no effect - may diminish training adaptation
Massage
< CK; < pain; = strength (Zainuddin et al, 05)
Flexibility
Chen et al (11)
PNF: > peak torque; < CK; < pain; SS close behind
Eston et al (07)
PNF had NO effect on soreness or strength
Compression clothing
McRae et al (11) review: inconclusive, unproven psycho-physiological effects
< pain; < strength loss (Jakeman et al, 10)
Born et al (12) MA: Lower body slightly effective on 1) short sprints (<60m) 2) jump height 3) TTE
Sperlich et al (13) two novel findings: 1) deep blood flow reduced [not elevated] 2) glucose uptake unchanged
Media attachments
rgse (image/png)
ghf (image/png)
ghfgh (image/png)
jhuob (image/png)
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