Title | Different modes of feedback and peak vertical ground reaction force during jump landing: a systematic review. |
Publication Type | Journal Article |
Year of Publication | 2013 |
Authors | Ericksen HM, Gribble PA, Pfile KR, Pietrosimone BG |
Journal | J Athl Train |
Volume | 48 |
Issue | 5 |
Pagination | 685-95 |
Date Published | 2013 Sep-Oct |
ISSN | 1938-162X |
Keywords | Athletic Performance, Biomechanical Phenomena, Feedback, Psychological, Humans, Knee Injuries, Knee Joint, Knowledge of Results, Psychological, Leg Injuries, Lower Extremity, Motor Activity, Self Report, Stress, Physiological |
Abstract | 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. |
DOI | 10.4085/1062-6050-48.3.02 |
Alternate Journal | J Athl Train |
PubMed ID | 24067153 |
PubMed Central ID | PMC3784371 |