TY - JOUR T1 - Effects and dose-response relationships of resistance training on physical performance in youth athletes: a systematic review and meta-analysis. AU - Lesinski,Melanie, AU - Prieske,Olaf, AU - Granacher,Urs, Y1 - 2016/02/05/ PY - 2015/12/15/accepted PY - 2016/2/7/entrez PY - 2016/2/7/pubmed PY - 2017/3/14/medline KW - Adolescent KW - Children KW - Physical fitness KW - Strength KW - Weight lifting SP - 781 EP - 95 JF - British journal of sports medicine JO - Br J Sports Med VL - 50 IS - 13 N2 - OBJECTIVES: To quantify age, sex, sport and training type-specific effects of resistance training on physical performance, and to characterise dose-response relationships of resistance training parameters that could maximise gains in physical performance in youth athletes. DESIGN: Systematic review and meta-analysis of intervention studies. DATA SOURCES: Studies were identified by systematic literature search in the databases PubMed and Web of Science (1985-2015). Weighted mean standardised mean differences (SMDwm) were calculated using random-effects models. ELIGIBILITY CRITERIA FOR SELECTING STUDIES: Only studies with an active control group were included if these investigated the effects of resistance training in youth athletes (6-18 years) and tested at least one physical performance measure. RESULTS: 43 studies met the inclusion criteria. Our analyses revealed moderate effects of resistance training on muscle strength and vertical jump performance (SMDwm 0.8-1.09), and small effects on linear sprint, agility and sport-specific performance (SMDwm 0.58-0.75). Effects were moderated by sex and resistance training type. Independently computed dose-response relationships for resistance training parameters revealed that a training period of >23 weeks, 5 sets/exercise, 6-8 repetitions/set, a training intensity of 80-89% of 1 repetition maximum (RM), and 3-4 min rest between sets were most effective to improve muscle strength (SMDwm 2.09-3.40). SUMMARY/CONCLUSIONS: Resistance training is an effective method to enhance muscle strength and jump performance in youth athletes, moderated by sex and resistance training type. Dose-response relationships for key training parameters indicate that youth coaches should primarily implement resistance training programmes with fewer repetitions and higher intensities to improve physical performance measures of youth athletes. SN - 1473-0480 UR - https://www.unboundmedicine.com/medline/citation/26851290/Effects_and_dose_response_relationships_of_resistance_training_on_physical_performance_in_youth_athletes:_a_systematic_review_and_meta_analysis_ L2 - https://bjsm.bmj.com/lookup/pmidlookup?view=long&pmid=26851290 DB - PRIME DP - Unbound Medicine ER -