Control-Normalized Fisher Ratio Analysis of Comprehensive Two-Dimensional Gas Chromatography Time-of-Flight Mass Spectrometry Data for Enhanced Biomarker Discovery in a Metabolomic Study of Orthopedic Knee-Ligament Injury

2020 ◽  
Vol 92 (23) ◽  
pp. 15526-15533
Author(s):  
Sarah E. Prebihalo ◽  
Grant S. Ochoa ◽  
Kelsey L. Berrier ◽  
Kristen J. Skogerboe ◽  
Kenneth L. Cameron ◽  
...  
Keyword(s):  
Biomarker Discovery ◽  
Mass Spectrometry Data ◽  
Ligament Injury ◽  
Ratio Analysis ◽  
Two Dimensional ◽  
Knee Ligament ◽  
Flight Mass Spectrometry ◽  
Fisher Ratio ◽  
Knee Ligament Injury ◽  
Metabolomic Study

Tile-Based Fisher Ratio Analysis of Comprehensive Two-Dimensional Gas Chromatography Time-of-Flight Mass Spectrometry (GC × GC–TOFMS) Data Using a Null Distribution Approach

2015 ◽  
Vol 87 (7) ◽  
pp. 3812-3819 ◽  
Author(s):  
Brendon A. Parsons ◽  
Luke C. Marney ◽  
W. Christopher Siegler ◽  
Jamin C. Hoggard ◽  
Bob W. Wright ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Time Of Flight ◽  
Null Distribution ◽  
Ratio Analysis ◽  
Two Dimensional ◽  
Flight Mass Spectrometry ◽  
Fisher Ratio

Estimation of Knee Ligament Injury Measures for a Pedestrian Dummy

2009 ◽  
Vol 2 (1) ◽  
pp. 1116-1124 ◽  
Author(s):  
Yukou Takahashi ◽  
Masayoshi Okamoto ◽  
Akihiko Akiyama ◽  
Yuji Kikuchi
Keyword(s):  
Ligament Injury ◽  
Knee Ligament ◽  
Knee Ligament Injury

scholarly journals Effects of Different Combinations of Concentric and Eccentric Resistance Training Programs on Traditional and Alternative Hamstrings-to-Quadriceps Ratios

Sports ◽  
2019 ◽  
Vol 7 (10) ◽  
pp. 221 ◽  
Author(s):  
Cassio V. Ruas ◽  
Ronei S. Pinto ◽  
Guy G. Haff ◽  
Camila D. Lima ◽  
Lee E. Brown
Keyword(s):  
Resistance Training ◽  
Injury Risk ◽  
Muscle Activation ◽  
Training Programs ◽  
Knee Extension ◽  
Muscle Size ◽  
Ligament Injury ◽  
Knee Ligament ◽  
Knee Ligament Injury ◽  
Muscle Balance

Resistance training is often recommended for combined increases in traditional and alternative hamstrings-to-quadriceps (H:Q) ratios in order to reduce knee strength imbalance and associated hamstrings and knee ligament injury risk. The aim of this study was to investigate the effect of different concentric and eccentric resistance training programs on traditional and alternative H:Q ratios. Forty male volunteers were assigned to one of 4 groups: concentric quadriceps and concentric hamstrings (CON/CON, n = 10), eccentric quadriceps and eccentric hamstrings (ECC/ECC, n = 10), concentric quadriceps and eccentric hamstrings (CON/ECC, n = 10), or no training (control (CNTRL), n = 10). Traditional conventional (CR) and functional (FR), alternative rate of torque development (RTD), muscle size (MS), and muscle activation (MA) H:Q ratios were measured before and after six weeks of unilateral nondominant knee extension–flexion resistance training performed on an isokinetic dynamometer. The ECC/ECC training significantly increased FR (pre = 0.75 ± 0.11; post = 0.85 ± 0.15), whereas the lack of training (CNTRL) decreased the RTD H:Q ratio (pre = 1.10 ± 0.67; post = 0.73 ± 0.33). There were no differences between groups for the other traditional and alternative ratios following resistance training protocols. These findings suggest eccentric exercise for quadriceps and hamstrings as the most beneficial training program for inducing increases in the traditional FR. However, different resistance training strategies may be needed to also elicit increases in the alternative RTD, MS, and MA H:Q ratios for fully restoring muscle balance and reducing potential hamstrings and knee ligament injury risk.

Effects of a Knee Ligament Injury Prevention Exercise Program on Impact Forces in Women

2004 ◽  
Vol 18 (4) ◽  
pp. 703 ◽  
Author(s):  
Bobbie S. Irmischer ◽  
Chad Harris ◽  
Ronald P. Pfeiffer ◽  
Mark A. DeBeliso ◽  
Kent J. Adams ◽  
...  
Keyword(s):  
Injury Prevention ◽  
Exercise Program ◽  
Ligament Injury ◽  
Knee Ligament ◽  
Impact Forces ◽  
Knee Ligament Injury
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