PMID- 18246896
OWN - NLM
STAT- MEDLINE
DCOM- 20080325
LR  - 20191110
IS  - 1056-6716 (Print)
IS  - 1056-6716 (Linking)
VI  - 16
IP  - 4
DP  - 2007 Nov
TI  - Effect of fatigue on neuromuscular function at the ankle.
PG  - 295-306
AB  - CONTEXT: Lateral ankle sprains occur more frequently than any other orthopedic 
      injury. Athletes often report sustaining more injuries late in competition when 
      fatigue is present. OBJECTIVE: To evaluate neuromuscular function of the ankle 
      musculature after fatigue. DESIGN: Experimental, pretest-posttest. SETTING: 
      Research laboratory. PARTICIPANTS: Ten female and 9 male college-aged subjects. 
      INTERVENTION: Fatigue was induced via continuous concentric and eccentric muscle 
      actions of the ankle: inversion (INV), eversion (EV), plantar flexion (PF), and 
      dorsiflexion (DF). MAIN OUTCOME MEASURES: Peak torque (PT), peak EMG, and median 
      frequency (MF) were calculated prefatigue and postfatigue in the tibialis 
      anterior (TA), peroneus longus (PER), and lateral gastrocnemius (GAS) muscles. 
      RESULTS: Main effects were noted for test (P < 0.0125) in all statistical tests 
      performed indicating changes in PT, peak EMG, and MF after fatigue. CONCLUSIONS: 
      A significant decrease in MF of the PER muscle after PF fatigue and corresponding 
      with a decreased firing rate, may be of importance, especially with regard to the 
      role in countering the violent moment seen with inversion ankle sprains.
FAU - Gutierrez, Gregory M
AU  - Gutierrez GM
AD  - Department of Health, Nutrition, & Exercise Sciences, University of Delaware, 
      Newark, USA. gregmg@udel.edu
FAU - Jackson, Nicole D
AU  - Jackson ND
FAU - Dorr, Kristin A
AU  - Dorr KA
FAU - Margiotta, Sarah E
AU  - Margiotta SE
FAU - Kaminski, Thomas W
AU  - Kaminski TW
LA  - eng
PT  - Journal Article
PL  - United States
TA  - J Sport Rehabil
JT  - Journal of sport rehabilitation
JID - 9206500
SB  - IM
MH  - Adult
MH  - Ankle Injuries/complications/*etiology/physiopathology
MH  - Electromyography
MH  - Female
MH  - Humans
MH  - Male
MH  - Muscle Fatigue/*physiology
MH  - Muscle, Skeletal/physiology/physiopathology
MH  - Neuromuscular Junction/physiology
MH  - Physical Endurance
MH  - Sex Factors
MH  - Sprains and Strains/*etiology/physiopathology
MH  - Torque
EDAT- 2008/02/06 09:00
MHDA- 2008/03/26 09:00
CRDT- 2008/02/06 09:00
PHST- 2008/02/06 09:00 [pubmed]
PHST- 2008/03/26 09:00 [medline]
PHST- 2008/02/06 09:00 [entrez]
AID - 10.1123/jsr.16.4.295 [doi]
PST - ppublish
SO  - J Sport Rehabil. 2007 Nov;16(4):295-306. doi: 10.1123/jsr.16.4.295.