PMID- 22064608
OWN - NLM
STAT- MEDLINE
DCOM- 20120529
LR  - 20220408
IS  - 1552-3365 (Electronic)
IS  - 0363-5465 (Linking)
VI  - 40
IP  - 2
DP  - 2012 Feb
TI  - Retention of movement pattern changes after a lower extremity injury prevention 
      program is affected by program duration.
PG  - 300-6
LID - 10.1177/0363546511425474 [doi]
AB  - BACKGROUND: Changes in movement patterns have been repeatedly observed 
      immediately after completing a lower extremity injury prevention program. 
      However, it is not known if movement pattern changes are maintained after 
      discontinuing the training program. HYPOTHESIS: The ability to maintain movement 
      pattern changes after training has ceased may be influenced by the program's 
      duration. The authors hypothesized that among individuals who completed either a 
      3-month or 9-month training program and who demonstrated immediate movement 
      pattern changes, only those who completed the 9-month training program would 
      maintain movement pattern changes after a 3-month period of no longer performing 
      the exercises. STUDY DESIGN: Cohort study; Level of evidence, 2. METHODS: A total 
      of 140 youth soccer athletes from 15 separate teams volunteered to participate. 
      Athletes' movement patterns were assessed using the Landing Error Scoring System 
      (LESS) at pretest, posttest, and 3 months after ceasing the program (retention 
      test). Eighty-four of the original 140 participants demonstrated improvements in 
      their LESS scores between pretest and posttest (change in LESS score >0) and were 
      included in the final analyses for this study (n = 84; 20 boys and 64 girls; mean 
      age, 14 +/- 2 years; age range, 11-17 years). Teams performed 3-month 
      (short-duration group) and 9-month (extended-duration group) injury prevention 
      programs. The exercises performed were identical for both groups. Teams performed 
      the programs as part of their normal warm-up routine. RESULTS: Although both 
      groups improved their total LESS scores from pretest to posttest, only the 
      extended-duration training group retained their improvements 3 months after 
      ceasing the injury prevention program (F(2,137) = 3.38; P = .04). CONCLUSION: 
      Results suggest that training duration may be an important factor to consider 
      when designing injury prevention programs that facilitate long-term changes in 
      movement control.
FAU - Padua, Darin A
AU  - Padua DA
AD  - Department of Exercise and Sports Science, Sports Medicine Research Laboratory, 
      University of North Carolina, Chapel Hill, 27599, USA. dpadua@email.unc.edu
FAU - DiStefano, Lindsay J
AU  - DiStefano LJ
FAU - Marshall, Stephen W
AU  - Marshall SW
FAU - Beutler, Anthony I
AU  - Beutler AI
FAU - de la Motte, Sarah J
AU  - de la Motte SJ
FAU - DiStefano, Michael J
AU  - DiStefano MJ
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PT  - Randomized Controlled Trial
PT  - Research Support, Non-U.S. Gov't
DEP - 20111107
PL  - United States
TA  - Am J Sports Med
JT  - The American journal of sports medicine
JID - 7609541
SB  - IM
MH  - Adolescent
MH  - *Anterior Cruciate Ligament Injuries
MH  - Child
MH  - Double-Blind Method
MH  - Exercise
MH  - Female
MH  - Humans
MH  - Knee Injuries/etiology/*prevention & control
MH  - Male
MH  - Motor Skills
MH  - *Movement
MH  - Physical Education and Training/*methods
MH  - Soccer/*injuries
MH  - Time Factors
EDAT- 2011/11/09 06:00
MHDA- 2012/05/30 06:00
CRDT- 2011/11/09 06:00
PHST- 2011/11/09 06:00 [entrez]
PHST- 2011/11/09 06:00 [pubmed]
PHST- 2012/05/30 06:00 [medline]
AID - 0363546511425474 [pii]
AID - 10.1177/0363546511425474 [doi]
PST - ppublish
SO  - Am J Sports Med. 2012 Feb;40(2):300-6. doi: 10.1177/0363546511425474. Epub 2011 
      Nov 7.