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- Sport, Exercise, Recreation, and Kinesiology (8)
- Sport Exercise Recreation and Kinesiology (4)
- Agility (1)
- Asymmetry (1)
- Back squat (1)
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- Bilateral (1)
- Concentric velocities (1)
- Countermovement jump (1)
- Cycling (1)
- Eccentric loaded squats (1)
- Explosiveness (1)
- Fatigue (1)
- Force production (1)
- Insulin receptor substrate-1 (1)
- Insulin resistance (1)
- Internal Medicine (1)
- Leg dynamic strength (1)
- Mechanical variables (1)
- Metabolic syndrome (1)
- Muscle (1)
- Peak acceleration (1)
- Preseason training (1)
- Snatch (1)
- Soccer players (1)
- Squat (1)
- Squat jump fatigue (1)
- Squat jumps (1)
- Strength (1)
- Strength training (1)
- Weightlifting (1)
Articles 1 - 12 of 12
Full-Text Articles in Medicine and Health Sciences
Analysis Of Changes In Strength, Explosiveness, And Agility Performance Over An Ncaa Division I Tennis Career: A Case Study, Caleb D. Bazyler, Jacob R. Goodin, George Beckham, H. Santana, M. Swartz, Ashley A. Kavanaugh
Analysis Of Changes In Strength, Explosiveness, And Agility Performance Over An Ncaa Division I Tennis Career: A Case Study, Caleb D. Bazyler, Jacob R. Goodin, George Beckham, H. Santana, M. Swartz, Ashley A. Kavanaugh
ETSU Faculty Works
Abstract available in the 9th Annual Coaches and Sport Science College .
An Exploratory Study On The Use Of Concentric Velocities In The Back Squat As A Monitoring Tool, Kevin M. Carroll, Josh D. Christovich, Caleb D. Bazyler, Nicholas J. Fiolo, George K. Beckham, Kimitake Sato
An Exploratory Study On The Use Of Concentric Velocities In The Back Squat As A Monitoring Tool, Kevin M. Carroll, Josh D. Christovich, Caleb D. Bazyler, Nicholas J. Fiolo, George K. Beckham, Kimitake Sato
ETSU Faculty Works
Abstract available in the 9th Annual Coaches and Sport Science College .
Using The Minimax Accelerometer To Quantify The Demands Of Preseason Training In Ncaa Volleyball: A Descriptive Case-Study Study, Christopher J. Sole, Nobuhisa Yoshida, Bradley A. Alban, Caleb D. Bazyler, Satoshi Mizuguchi
Using The Minimax Accelerometer To Quantify The Demands Of Preseason Training In Ncaa Volleyball: A Descriptive Case-Study Study, Christopher J. Sole, Nobuhisa Yoshida, Bradley A. Alban, Caleb D. Bazyler, Satoshi Mizuguchi
ETSU Faculty Works
Abstract available in the 9th Annual Coaches and Sport Science College.
Is A 20 Kg Load Sufficient To Simulate Fatigue In Squat Jumps?, Chris A. Bailey, T. Mcinnis, K. Sato, B. Johnston, Z. Sha, Michael H. Stone
Is A 20 Kg Load Sufficient To Simulate Fatigue In Squat Jumps?, Chris A. Bailey, T. Mcinnis, K. Sato, B. Johnston, Z. Sha, Michael H. Stone
ETSU Faculty Works
Abstract available in the Annual Coaches and Sport Science College.
Insulin Resistance And Muscle Insulin Receptor Substrate-1 Serine Hyperphosphorylation, Charles A. Stuart, Mary E. A. Howell, Brian M. Cartwright, Melanie P. Mccurry, Michelle L. Lee, Michael W. Ramsey, Michael H. Stone
Insulin Resistance And Muscle Insulin Receptor Substrate-1 Serine Hyperphosphorylation, Charles A. Stuart, Mary E. A. Howell, Brian M. Cartwright, Melanie P. Mccurry, Michelle L. Lee, Michael W. Ramsey, Michael H. Stone
ETSU Faculty Works
Insulin resistance in metabolic syndrome subjects is profound in spite of muscle insulin receptor and insulin-responsive glucose transporter (GLUT4) expression being nearly normal. Insulin receptor tyrosine kinase phosphorylation of insulin receptor substrate-1 (IRS-1) at Tyr896 is a necessary step in insulin stimulation of translocation of GLUT4 to the cell surface. Serine phosphorylation of IRS-1 by some kinases diminishes insulin action in mice. We evaluated the phosphorylation status of muscle IRS-1 in 33 subjects with the metabolic syndrome and seventeen lean controls. Each underwent euglycemic insulin clamps and a thigh muscle biopsy before and after 8 weeks of either strength or …
Utilizing Weightlifting For Cycling Performance, Nicholas J. Fiolo, Christopher B. Taber, Caleb D. Bazyler, Cody T. Haun, Robert Duncan, Aaron M. Thomas, Michael W. Ramsey, Michael H. Stone
Utilizing Weightlifting For Cycling Performance, Nicholas J. Fiolo, Christopher B. Taber, Caleb D. Bazyler, Cody T. Haun, Robert Duncan, Aaron M. Thomas, Michael W. Ramsey, Michael H. Stone
ETSU Faculty Works
Abstract available in the 9th Annual Coaches and Sport Science College.
Changes In Peak Acceleration In The Snatch Across Multiple - Attempts In Training: A Case Study, George K. Beckham, Kimitake Sato, Timothy J. Suchomel, William A. Sands, Michael H. Stone
Changes In Peak Acceleration In The Snatch Across Multiple - Attempts In Training: A Case Study, George K. Beckham, Kimitake Sato, Timothy J. Suchomel, William A. Sands, Michael H. Stone
ETSU Faculty Works
Accelerometers are devices that have been recently used to assess the performance of weightlifters in training. This case study used vertical acceleration data to assess multiple snatch attempts in a single lifter during a training session. The lifter exhibited variability in a number of measures, including peak acceleration and peak velocity. The measures calculated from the acceleration-time data did not show consistent trends between made and missed lifts. More work is needed identify variables of interest for snatch performance.
Leg Dynamic Strength Predictors Of A Pre-Planned Change Of Direction Task In Ncaa Division 1 Soccer Players, Chieh-Ying Chiang, Christopher A. Bailey, Christohper J. Sole, Timothy J. Suchomel, Kimitake Sato, Michael H. Stone
Leg Dynamic Strength Predictors Of A Pre-Planned Change Of Direction Task In Ncaa Division 1 Soccer Players, Chieh-Ying Chiang, Christopher A. Bailey, Christohper J. Sole, Timothy J. Suchomel, Kimitake Sato, Michael H. Stone
ETSU Faculty Works
The purpose of this investigation was to evaluate the relationships between two types of vertical jumps and change of direction (COD) test in collegiate soccer players (n=24). 5-5 COD test was utilized to measure soccer athletes’ COD ability. 3m acceleration (3mAcc), Total time (TT) and Partial time (PT) were measured by two sets of timing gates. Countermovement jump (CMJ) and static jump (SJ) with 2 different loading conditionings (0kg and 20kg) were employed to evaluate athletes’ leg dynamic strength. Strong statistically significant relationships were found between COD test variables (r =0.71 to 0.90), and between vertical jump variables with PT …
Longitudinal Monitoring Of Countermovement Jump Mechanical Variables: A Preliminary Investigation, Christopher J. Sole, Satoshi Mizuguchi, Timothy J. Suchomel, William A. Sands, Michael H. Stone
Longitudinal Monitoring Of Countermovement Jump Mechanical Variables: A Preliminary Investigation, Christopher J. Sole, Satoshi Mizuguchi, Timothy J. Suchomel, William A. Sands, Michael H. Stone
ETSU Faculty Works
The purpose of this study was to examine the influence of accumulated volume load on countermovement jump (CMJ) mechanical variables. Eight athletes underwent weekly CMJ testing using a force plate. Statistical changes were observed in certain CMJ variables over the observation period. Jump height (0.42±0.05 m) and allometrically scaled peak power (88.86±7.49 W·kg-0.67) exhibited multiple statistical changes. These changes appeared to exhibit a delayed effect in response to accumulated volume load. Specifically, following several weeks of large accumulated volume loads these variables declined. In addition subsequently decreasing accumulated volume loads resulted in an increase in both variables. The findings of …
The Effects Of Strength Training On Isometric Force Production Symmetry In Recreationally Trained Males, Caleb D. Bazyler, Christopher A. Bailey, Chieh-Ying Chiang, Kimitake Sato, Michael H. Stone
The Effects Of Strength Training On Isometric Force Production Symmetry In Recreationally Trained Males, Caleb D. Bazyler, Christopher A. Bailey, Chieh-Ying Chiang, Kimitake Sato, Michael H. Stone
ETSU Faculty Works
Objectives: The purpose of this investigation was to determine what effect a bilateral strength training regimen has on isometric force production symmetry and if changes in force production symmetry can be accounted for by differences in pre-intervention strength levels. Design: Sixteen recreationally trained males (1-RM squat: 146.8 ± 23.0 kg.) were assigned to two groups for the 7-week training intervention: strong (S) and weak (W) based on pre-training squat isometric peak force allometrically scaled (IPFa) at 120° knee angle. Methods: Subjects completed a 7-week training intervention following a block-periodized model and were tested on measures of dynamic (1RM squat) and …
Differences In Semg Between Normal Squats And Accentuated Eccentric Loaded Squats In Competitive Collegiate Weightlifters, Christopher Macdonalds, Kimitake Sato, Christian Carter, Hugh Lamont, William Sands, Michael H. Stone, Michael Israetel, Jeremy A. Gentles, Jason Cholewa, John Garner, Michael Ramsey, Guy Hornsby
Differences In Semg Between Normal Squats And Accentuated Eccentric Loaded Squats In Competitive Collegiate Weightlifters, Christopher Macdonalds, Kimitake Sato, Christian Carter, Hugh Lamont, William Sands, Michael H. Stone, Michael Israetel, Jeremy A. Gentles, Jason Cholewa, John Garner, Michael Ramsey, Guy Hornsby
ETSU Faculty Works
The purpose of the present work was to compare the effect of accentuated eccentric loaded (AEL) squats to normally loaded (NOR) squats on surface measured muscle activation (sEMG) in competitive weightlifters. Eight experienced, competitive weightlifters (six males, two females) completed both an AEL and NOR squat session (seven days apart), comprised of nine sets of squats, and was identical to their normal scheduled training. sEMG data from the vastus medialis (VM), vastus lateralis (VL), and biceps femoris (BF) was collected (at 1000Hz) during the entirety of the concentric (CON) phases of the AEL and NOR sessions. RMANOVAs (set x session-type) …
The Relationship Of Force Production Asymmetry And Performance In Athletes Of Different Strength Levels, Christopher A. Bailey, Caleb D. Bazyler, Chieh-Ying Chiang, Kimitake Sato, Michael H. Stone
The Relationship Of Force Production Asymmetry And Performance In Athletes Of Different Strength Levels, Christopher A. Bailey, Caleb D. Bazyler, Chieh-Ying Chiang, Kimitake Sato, Michael H. Stone
ETSU Faculty Works
The purpose of this study was to evaluate the relationship between force production asymmetry and performance of athletes with differing strength levels in males and females. Collegiate athletes (n=129) from various sports were ranked according to isometric mid-thigh pull peak force and the top (‘strong’) and bottom (‘weak’) 25% were used for analysis. Symmetry index (SI) scores were calculated and correlated with their respective force-time characteristics using bivariate correlations. For the weaker males, several negative moderate correlations were observed; however, no statistically significant correlations were observed for the females in either group. These findings indicate that force production asymmetry is …