Journal of athletic training · 2013
Different modes of feedback and peak vertical ground reaction force during jump landing: a systematic review.
СтатьяСистематический обзорНазвание и аннотация: Перевод в очереди
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Ericksen Hayley M, Gribble Phillip A, Pfile Kate R, Pietrosimone Brian G
Аннотация
CONTEXT: Excessive ground reaction force when landing from a jump may result in lower extremity injuries. It is important to better understand how feedback can influence ground reaction force (GRF) and potentially reduce injury risk.
OBJECTIVE: To determine the effect of expert-provided (EP), self-analysis (SA), and combination EP and SA (combo) feedback on reducing peak vertical GRF during a jump-landing task.
DATA SOURCES: We searched the Web of Science database on July 1, 2011; using the search terms ground reaction force, landing biomechanics, and feedback elicited 731 initial hits.
STUDY SELECTION: Of the 731 initial hits, our final analysis included 7 studies that incorporated 32 separate data comparisons.
DATA EXTRACTION: Standardized effect sizes and 95% confidence intervals (CIs) were calculated between pretest and posttest scores for each feedback condition.
DATA SYNTHESIS: We found a homogeneous beneficial effect for combo feedback, indicating a reduction in GRF with no CIs crossing zero. We also found a homogeneous beneficial effect for EP feedback, but the CIs from 4 of the 10 data comparisons crossed zero. The SA feedback showed strong, definitive effects when the intervention included a videotape SA, with no CIs crossing zero.
CONCLUSIONS: Of the 7 studies reviewed, combo feedback seemed to produce the greatest decrease in peak vertical GRF during a jump-landing task.
OBJECTIVE: To determine the effect of expert-provided (EP), self-analysis (SA), and combination EP and SA (combo) feedback on reducing peak vertical GRF during a jump-landing task.
DATA SOURCES: We searched the Web of Science database on July 1, 2011; using the search terms ground reaction force, landing biomechanics, and feedback elicited 731 initial hits.
STUDY SELECTION: Of the 731 initial hits, our final analysis included 7 studies that incorporated 32 separate data comparisons.
DATA EXTRACTION: Standardized effect sizes and 95% confidence intervals (CIs) were calculated between pretest and posttest scores for each feedback condition.
DATA SYNTHESIS: We found a homogeneous beneficial effect for combo feedback, indicating a reduction in GRF with no CIs crossing zero. We also found a homogeneous beneficial effect for EP feedback, but the CIs from 4 of the 10 data comparisons crossed zero. The SA feedback showed strong, definitive effects when the intervention included a videotape SA, with no CIs crossing zero.
CONCLUSIONS: Of the 7 studies reviewed, combo feedback seemed to produce the greatest decrease in peak vertical GRF during a jump-landing task.