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Rate of Performance Change in American Female Weightlifters Over Ten Years of Competition

The purpose of this study was to evaluate the rates of performance change for American female weightlifters over 10 years of competition. Athlete performance results were gathered from the United States Weightlifting open access, results archive, database. Data was delimited to athletes (N ≥ 750) th...

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Autores principales: MILLER, JASON D., VENTRESCA, HEIDI C., BRACKEN, LINDSAY E.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Berkeley Electronic Press 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5955311/
https://www.ncbi.nlm.nih.gov/pubmed/29795743
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author MILLER, JASON D.
VENTRESCA, HEIDI C.
BRACKEN, LINDSAY E.
author_facet MILLER, JASON D.
VENTRESCA, HEIDI C.
BRACKEN, LINDSAY E.
author_sort MILLER, JASON D.
collection PubMed
description The purpose of this study was to evaluate the rates of performance change for American female weightlifters over 10 years of competition. Athlete performance results were gathered from the United States Weightlifting open access, results archive, database. Data was delimited to athletes (N ≥ 750) that competed in Youth or Junior Nationals to ensure athletes were <21yrs old at the first recorded competition. Competition results were converted to strength to mass (SM) ratios to control for the effect of bodyweight on performance. Starting with the first competition date, the highest SM for the snatch (SNT), clean and jerk (CJ) and combined total (T), in three month segments for three years, and six month segments over 10 years, were recorded. Observed percentage change in SM and Cohen’s d effect size (ES) between each 3-and 6-month segment and the first competition (baseline), for the SNT, CJ and T, was determined. Positive change in rate of performance peaked between time segments baseline-6mo and 7mo–12mo for the SNT (+8.7%, SM 0.68±0.19 to 0.74±0.19, ES=0.34), CJ (+7.7%, SM 0.90±0.24 to 0.97±0.24, ES=0.31) and T (+8.2%, SM 1.57±0.41 to 1.71±0.42 ES=0.34). Total performance increase over 10yrs for the SNT was 27.7% (Year 1 SM 0.68±0.18, year 10 SM 1.13±0.24, ES=0.96), the CJ 22.2% (Year 1 SM 0.90±0.23, year 10 SM 1.40±0.30, ES=0.84), and T 25.0% (Year 1 SM 1.56±0.41, year 10 SM 2.53±0.53, ES=0.91). Observed rates in performance change could be useful for weightlifting coaches as a barometer for evaluating training program outcomes over time.
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spelling pubmed-59553112018-05-21 Rate of Performance Change in American Female Weightlifters Over Ten Years of Competition MILLER, JASON D. VENTRESCA, HEIDI C. BRACKEN, LINDSAY E. Int J Exerc Sci Original Research The purpose of this study was to evaluate the rates of performance change for American female weightlifters over 10 years of competition. Athlete performance results were gathered from the United States Weightlifting open access, results archive, database. Data was delimited to athletes (N ≥ 750) that competed in Youth or Junior Nationals to ensure athletes were <21yrs old at the first recorded competition. Competition results were converted to strength to mass (SM) ratios to control for the effect of bodyweight on performance. Starting with the first competition date, the highest SM for the snatch (SNT), clean and jerk (CJ) and combined total (T), in three month segments for three years, and six month segments over 10 years, were recorded. Observed percentage change in SM and Cohen’s d effect size (ES) between each 3-and 6-month segment and the first competition (baseline), for the SNT, CJ and T, was determined. Positive change in rate of performance peaked between time segments baseline-6mo and 7mo–12mo for the SNT (+8.7%, SM 0.68±0.19 to 0.74±0.19, ES=0.34), CJ (+7.7%, SM 0.90±0.24 to 0.97±0.24, ES=0.31) and T (+8.2%, SM 1.57±0.41 to 1.71±0.42 ES=0.34). Total performance increase over 10yrs for the SNT was 27.7% (Year 1 SM 0.68±0.18, year 10 SM 1.13±0.24, ES=0.96), the CJ 22.2% (Year 1 SM 0.90±0.23, year 10 SM 1.40±0.30, ES=0.84), and T 25.0% (Year 1 SM 1.56±0.41, year 10 SM 2.53±0.53, ES=0.91). Observed rates in performance change could be useful for weightlifting coaches as a barometer for evaluating training program outcomes over time. Berkeley Electronic Press 2018-05-01 /pmc/articles/PMC5955311/ /pubmed/29795743 Text en
spellingShingle Original Research
MILLER, JASON D.
VENTRESCA, HEIDI C.
BRACKEN, LINDSAY E.
Rate of Performance Change in American Female Weightlifters Over Ten Years of Competition
title Rate of Performance Change in American Female Weightlifters Over Ten Years of Competition
title_full Rate of Performance Change in American Female Weightlifters Over Ten Years of Competition
title_fullStr Rate of Performance Change in American Female Weightlifters Over Ten Years of Competition
title_full_unstemmed Rate of Performance Change in American Female Weightlifters Over Ten Years of Competition
title_short Rate of Performance Change in American Female Weightlifters Over Ten Years of Competition
title_sort rate of performance change in american female weightlifters over ten years of competition
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5955311/
https://www.ncbi.nlm.nih.gov/pubmed/29795743
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