Test-Retest Reliability Between Free Weight and Machine-Based Movement Velocities

Miller, RM, Freitas, EDS, Heishman, AD, Koziol, KJ, Galletti, BAR, Kaur, J, and Bemben, MG. Test-retest reliability between free weight and machine-based movement velocities. J Strength Cond Res 34(2): 440–444, 2020—Several devices are available to measure muscular power through velocity measurement, including the Tendo FitroDyne. The ability for such devices to produce consistent results is still questioned, and the reproducibility of measurement between free weight and machine exercise has yet to be examined. Therefore, the aim of this investigation was to determine the test-retest reliability for barbell velocity during the bench press (BP) and weight velocity during the 2 leg press (2LP) for loads corresponding to 20–80% of 1 repetition maximum (1RM). Forty recreationally active individuals (22.6 ± 2.5 years; 175.9 ± 10.8 cm; and 76.2 ± 13.2 kg) with a 1RM BP and 2LP of 66.8 ± 32.4 kg and 189.5 ± 49 kg, respectively, volunteered for this study. Subjects completed 1 familiarization visit preceding 3 testing visits, which encompassed 1RM determination and 2 days of velocity testing. Forty-eight hours after 1RM testing, the subjects performed 1 repetition at 20, 30, 40, 50, 60, 70, and 80% of their 1RM for each exercise in randomized order. Subjects returned to the laboratory 1 week later to perform the velocity assessment again in randomized order. Intraclass correlation coefficient (ICC2,1) and relative SEM for the BP an...
Source: Journal of Strength and Conditioning Research - Category: Sports Medicine Tags: Original Research Source Type: research

Related Links:

Publication date: Available online 6 April 2020Source: Clinica Chimica ActaAuthor(s): Julia L. Varghese, Angela W.S. Fung, Andre Mattman, Tien T.T. Quach, Deonne Thaddeus V. Gauiran, Mollie N. Carruthers, Luke Y.C. Chen
Source: Clinica Chimica Acta - Category: Laboratory Medicine Source Type: research
Publication date: Available online 6 April 2020Source: Clinica Chimica ActaAuthor(s): Niels Lech Pedersen, Mathias Mertz Petersen, Jon J. Ladd, Paul D. Lampe, Robert S. Bresalier, Gerard J. Davis, Christina Demuth, Sarah Ø. Jensen, Claus L. Andersen, Linnea Ferm, Ib Jarle Christensen, Hans J. Nielsen
Source: Clinica Chimica Acta - Category: Laboratory Medicine Source Type: research
Publication date: Available online 6 April 2020Source: Clinica Chimica ActaAuthor(s): Junxia Duan, Yue Zhao, Xiaohong Zhang, Han Jiang, Bibo Xie, Tie Zhao, Feijun Zhao
Source: Clinica Chimica Acta - Category: Laboratory Medicine Source Type: research
Conclusion: Severe acute pancreatitis during pregnancy leads to a high rate of fetal mortality.Gestational trimester, delayed diagnosis, HTG, MOF, gestational diabetes mellitus, and preeclampsia are predictors of fetal loss. Therefore, close monitoring is essential for pregnancies complicated with HTG, diabetes mellitus, and hypertension. PMID: 32249649 [PubMed - as supplied by publisher]
Source: Postgraduate Medicine - Category: Internal Medicine Tags: Postgrad Med Source Type: research
Authors: Pappas-Gogos G, Baltagiannis EG, Kyrochristos ID, Ziogas DE, Goussia A, Mitsis M, Roukos DH PMID: 32250157 [PubMed - as supplied by publisher]
Source: Future Medicine: Biomarkers in Medicine - Category: Internal Medicine Tags: Biomark Med Source Type: research
Authors: Esteves JV, Yonamine CY, Machado UF PMID: 32250156 [PubMed - as supplied by publisher]
Source: Future Medicine: Biomarkers in Medicine - Category: Internal Medicine Tags: Biomark Med Source Type: research
Authors: Nazemalhosseini-Mojarad E, Sanjabi F, Babini H PMID: 32250155 [PubMed - as supplied by publisher]
Source: Future Medicine: Biomarkers in Medicine - Category: Internal Medicine Tags: Biomark Med Source Type: research
Authors: Thomsen CB, Jakobsen A PMID: 32250154 [PubMed - as supplied by publisher]
Source: Future Medicine: Biomarkers in Medicine - Category: Internal Medicine Tags: Biomark Med Source Type: research
Conclusion: The mSHOX2/mPTGER4 assay showed some values with more limitations in lung cancer early detection. PMID: 32250153 [PubMed - as supplied by publisher]
Source: Future Medicine: Biomarkers in Medicine - Category: Internal Medicine Tags: Biomark Med Source Type: research
CONCLUSIONS: The area-level risk of precarious employment matters for male workers' health independently from their job status, underscoring the importance of policy measures aimed to reduce the adverse impacts of precarious employment on workers' health. PMID: 32249269 [PubMed - as supplied by publisher]
Source: Journal of Epidemiology - Category: Epidemiology Tags: J Epidemiol Source Type: research
More News: Laboratory Medicine | Sports Medicine | Study