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203 results on '"SZIVAK, TUNDE K."'

5. Body Composition in Elite Strongman Competitors

Author

Kraemer, William J., Caldwell, Lydia K., Post, Emily M., DuPont, William H., Martini, Emily R., Ratamess, Nicholas A., Szivak, Tunde K., Shurley, Jason P., Beeler, Matthew K., Volek, Jeff S., Maresh, Carl M., Todd, Janice S., Walrod, Bryant J., Hyde, Parker N., Fairman, Ciaran, and Best, Thomas M.

Published
2020
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13. The role of strength and power during performance of high intensity military tasks under heavy load carriage

Author

Mala, Jesse, Szivak, Tunde K., Flanagan, Shawn D., Comstock, Brett A., Laferrier, Justin Z., Maresh, Carl M., and Kraemer, William J.

Subjects
Analysis, Health
Abstract

Throughout history, load carriage has been shown to be an essential aspect of soldiering during military operations. During training and on the battlefield, Warfighters are required to carry various loads [...]

Published
2015

14. Trans-American Travel within NCAA Regulations Induces Jet Lag which Attenuates Sleep Quality and Athletic Performance: 2987 Board #302 May 29, 3: 30 PM - 5: 00 PM

Author

Hooper, David R., Secola, Paul J., Dulkis, Lexie L., Dupont, William H., Saenz, Cathy, Kupchak, Brian R., Szivak, Tunde K., Comstock, Brett A., Flanagan, Shawn D., Looney, David P., Pryor, J. Luke, Kalkowski, Ryan J., Luk, Hui-Ying, Beaudette, Tori L., Thurston, Taylor S., Galpin, Andrew J., Volek, Jeff S., Maresh, Carl M., Brown, Lee E., and Kraemer, William J.

Published
2015
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18. Differences in brain structure and theta burst stimulation-induced plasticity implicate the corticomotor system in loss of function after musculoskeletal injury

Author

Flanagan, Shawn D., primary, Proessl, Felix, additional, Dunn-Lewis, Courtenay, additional, Sterczala, Adam J., additional, Connaboy, Chris, additional, Canino, Maria C., additional, Beethe, Anne Z., additional, Eagle, Shawn R., additional, Szivak, Tunde K., additional, Onate, James A., additional, Volek, Jeff S., additional, Maresh, Carl M., additional, Kaeding, Christopher C., additional, and Kraemer, William J., additional

Published
2021
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21. Contributors

Author

Abildgaard, Jeffrey T., Aerni, Giselle A., Alfonso, Kathryn, Allen, Brian F., Allen, Joanne B. “Anne”, Amendola, Annunziato, Asif, Irfan, Asplund, Chad, Baker, Joshua, Batten, Casey G., Baynard, Taurean G., Belk, John Wilson, Bell, Christopher C., Benjamin, Holly J., Betz, Bret E., Beutler, Anthony, Bloom, O. Josh, Bowers, Zach D., Bowman, Eric N., Bravman, Jonathan T., Campbell, Aaron D., Case, Michael K., Ceraulo, Anthony S., Chahla, Jorge, Chang, Cindy J., Chapman, Robert F., Cheney, Sarah M., Cheng, Leon Y., Chu, Stephanie, Clanton, Thomas O., Cole, Daniel C., Conway, Justin J., Coppel, David B., Cosca, David D., Cruickshank, Jason, Cupit, Ginger L., Dailey, Stephen, Jr., Dakkak, Michael, Dec, Katherine L., Dexter, William, Dimeff, Robert J., Divine, Jon, Dixit, Sameer, Draper, Timothy R., Drezner, Jonathan A., Dunbar, Siatta B., Dusel, Cynthia D., Edenfield, Katie M., Eerkes, Kevin, Eichner, Amy, Eichner, Daniel, Elbanna, Ashraf M., Emara, Ahmed, Erickson, Mark J., Esala, Nicolai, Escher, Paul, Escher, Scott A., Fehr, Shayne D., Fehske, Kai, Femino, John E., Fields, Karl B., Finck, Adam N., Fithian, Andrew, Franks, R. Robert, Jr., Fudge, Jessie R., Fuller, Paul S., Gabler, Mikaela C., Gammons, Matthew R., Goerl, Kyle, Gonzalez, Sophia, Goolsby, Marci A., Gottschalk, Andrew William, Gottschlich, Laura, Graygo, David, Green, Gary A., Greenberg, Leslie, Hall, Mederic M., Harmon, Kimberly G., Harris, George D., Harvey, Jennifer S., Hatfield, Disa L., Helming, Bruce, Hill, John C., Ho, Corey K., Hong, Eugene S., Howard, Thomas M., Hunt, Kenneth J., Husaini, Mustafa, Jacobs, Brian A., Jewison, David J., John-Daniel, Bevila, Johnson, Robert, Jones, Nathaniel S., Joy, Susan M., Kaeding, Christopher C., Karl, John W., Kasitinon, Donald, Khodaee, Morteza, Kim, Christopher, King, Dominic, Kiningham, Robert, Kobayashi, Yuka, Kodery, Chitra, Kraemer, William J., Kraeutler, Matthew J., Krainin, Benjamin, Kroncke, Erica L., Lamplot, Joseph D., Lavallee, Mark E., Laver, Lior, Lear, Aaron, Lebrun, Constance M., Levine, Benjamin D., Lupowitz, Lewis G., Madden, Christopher C., Maertens, Andrew S., Makovitch, Steven A., Martin, Steven L., Masocol, Robert Virgil, Mattern, Dawn, McCarty, Eric C., McCarty, Eric C., Jr., McCarty, Torrance A., McGoldrick, Adrian, McGrath, Todd M., McKeag, Ian D., Mei-Dan, Omer, Miller, Catherine, Miller, Mark D., Miller, Travis, Molis, Marc A., Molis, Whitney E., Moriarty, Alexa, Morkeberg, Torb, Morris, George A., Morton, Kinshasa C., Myers, Rebecca Ann, Neilson, Michael K., Niedfeldt, Mark W., O’Connor, Francis G., Olson, David E., Overlin, Amy Jo F., Pascual-Garrido, Cecilia, Patricios, Jon S., Patsimas, Tatiana, Paul, Stephen R., Petek, Bradley J., Peterson, Charles S., Petron, David J., Poddar, Sourav K., Porter, Emily B., Potyk, Andrew G., Powell, Amy P., Putukian, Margot, Pytiak, Andrew V., Qazi, Tauqeer, Quinn, Courtney A., Raasch, William G., Ray, Jeremiah W., Ray, Tracy R., Reardon, Claudia L., Reisman, Andrew, Richter, Dustin L., Riley, Erin, Roberts, William O., Ryan, Kelly, Sachtleben, Thomas R., Safran, Marc R., San-Millan, Inigo, Schaffer, Jonathan, Schickendantz, Mark, Schnebel, Brock E., Schneider, Jodi, Scott, Joshua C., Shah, Selina, Shrier, Ian, Sidhar, Kartik, Silberman, Marc R., Simpson, Charles “Chip”, II, Smith, Edward J., Smith, Matthew V., Snyder, R. Lance, Spindler, Kurt P., Spittler, Jack, Stannard, James P., Steinlight, Sasha, Stewman, Chaney G., Stolakis, Ryan S., Stovak, Mark, Strickland, Colin D., Stromberg, Jennifer D., Subramanyam, Venkat, Sutton, Karen M., Szivak, Tunde K., Thomas, Gwendolyn A., Thornton, Jane S., Tokish, John M., Traister, Eric, Underwood, James A., Vetter, Carole S., Vidal, Armando F., Wagner, Ryan J., Walrod, Bryant, Walter, Kevin D., Watson, Jeffry T., Weber, Jaimi, Wilk, Kevin E., Williams, Robert A., Jr., Wolcott, Michelle, Wright, Rick W., and Young, Craig C.

Published
2023
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25. A multi-nutrient supplement reduced markers of inflammation and improved physical performance in active individuals of middle to older age: a randomized, double-blind, placebo-controlled study

Author

Szivak Tunde K, Comstock Brett A, Ballard Kevin D, Luk Hui-Ying, Creighton Brent A, Kelly Neil A, Kupchak Brian R, Kraemer William J, Dunn-Lewis Courtenay, Hooper David R, Denegar Craig R, and Volek Jeff S

Subjects
Aging, Supplementation, Resistance Exercise, Amino Acids, Joint, Recovery, Vitamin B, Nutrition. Foods and food supply, TX341-641, Nutritional diseases. Deficiency diseases, RC620-627
Abstract

Abstract Background While exercise acts to combat inflammation and aging, the ability to exercise may itself be compromised by inflammation and inflammation's impact on muscle recovery and joint inflammation. A number of nutritional supplements have been shown to reduce inflammation and improve recovery. The purpose of the current investigation was to examine the effect of a multi-nutrient supplement containing branched chain amino acids, taurine, anti-inflammatory plant extracts, and B vitamins on inflammatory status, endothelial function, physical function, and mood in middle-aged individuals. Methods Thirty-one healthy and active men (N = 16, mean age 56 ± 6.0 yrs) and women (N = 15, mean age = 52 ± 7.5 yrs) participated in this investigation. Subjects completed one 28 day cycle of placebo supplementation and one 28 day cycle of multi-nutrient supplementation (separated by a one week washout period) in a balanced, randomized, double-blind, cross-over design. Subjects completed weekly perceptual logs (PROMIS-57, KOOS) and pre- and post- testing around the supplementation period. Testing consisted of brachial artery flow mediated dilation (FMD), blood measures, and physical performance on vertical jump, handgrip strength, and balance (dispersion from center of pressure). Significance for the investigation was p ≤ 0.05. Results IL-6 significantly decreased in both men (from 1.2 ± 0.2 to 0.7 ± 0.4 pg·mL-1) and women (from 1.16 ± 0.04 to 0.7 ± 0.4 pg·mL-1). Perceived energy also improved for both men (placebo: 1.8 ± 0.7; supplement: 3.7 ± 0.8 AUC) and women (placebo: 1.2 ± 0.7; supplement: 2.8 ± 0.8 AUC). Alpha-1-antichymotrypsin (from 108.9 ± 38.6 to 55.5 ± 22.2 ug·mL-1), Creatine Kinase (from 96 ± 34 to 67 ± 23 IU·L-1), general pain, and joint pain decreased in men only, while anxiety and balance (from 0.52 ± 0.13 to 0.45 ± 0.12 cm) improved in women only. Men showed increased performance in vertical jump power (from 2642 ± 244 to 3134 ± 282 W) and grip strength (from 42.1 ± 5.9 to 48.5 ± 4.9 kg). Conclusions A multi-nutrient supplement is effective in improving inflammatory status in both men and women, markers of pain, joint pain, strength, and power in men only, and both anxiety and balance (a risk factor for hip fracture) in women. Therefore, a multi-nutrient supplement may help middle-aged individuals to prolong physical function and maintain a healthy, active lifestyle.

Published
2011
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26. Resistance Training and Milk-Substitution Enhance Body Composition and Bone Health in Adolescent Girls.

Author

Gómez, Ana L., Kraemer, William J., Maresh, Carl M., Lee, Elaine C., Szivak, Tunde K., Caldwell, Lydia K., Post, Emily M., Beeler, Matthew K., and Volek, Jeff S.

Abstract

Background: Increased soft-drink consumption has contributed to poor calcium intake with 90% of adolescent girls consuming less than the RDA for calcium.Purpose/objectives: The purpose of this investigation was to determine the independent and additive effects of two interventions (milk and resistance training) on nutrient adequacy, body composition, and bone health in adolescent girls.Methods: The experimental design consisted of four experimental groups of adolescent girls 14-17 years of age: (1) Milk + resistance training [MRT]; n = 15; (2) Resistance training only [RT]; n = 15; (3) Milk only [M] n = 20; (4) Control [C] n = 16. A few significant differences were observed at baseline between the groups for subject characteristics. Testing was performed pre and post-12 week training period for all groups. Milk was provided (3, 8 oz servings) for both the MRT and the M groups. The MRT group and the RT groups performed a supervised periodized resistance training program consisting of supervised one-hour exercise sessions 3 d/wk (M, W, F) for 12 wk. Baseline dietary data was collected utilizing the NUT-P-FFQ and/or a 120 item FFQ developed by the Fred Hutchinson Cancer Research Center (Seattle, Washington). Body composition was measured in the morning after an overnight fast using dual-energy X-ray absorptiometry (DXA) with a total body scanner (ProdigyTM, Lunar Corporation, Madison, WI). A whole body scan for bone density and lumbar spine scans were performed on all subjects. Maximal strength of the upper and lower body was assessed via a one-repetition maximum (1-RM) squat and bench press exercise protocols. Significance was set at P ≤ 0.05.Results: Significant differences in nutrient intakes between groups generally reflected the nutrient composition of milk with greater intakes of protein and improved nutrient adequacy for several B vitamins, vitamin A, vitamin D, calcium, magnesium, phosphorus, potassium, and zinc. Mean calcium intake was 758 and 1581 mg/d, in the non-milk and milk groups, respectively, with 100% of girls in the milk groups consuming > RDA of 1300 mg/d. There were no effects of milk on body composition or muscle performance, but resistance training had a main effect and significantly increased body mass, lean body mass, muscle strength, and muscle endurance. There was a main effect of milk and resistance training on several measures of bone mineral density (BMD). Changes in whole body BMD in the M, RT, MRT, and CON were 0.45, 0.52, 1.32, and -0.19%, respectively (P < 0.01).Conclusions: Over the course of 12 weeks the effects of 1300 mg/d of calcium in the form of fluid milk combined with a heavy resistance training program resulted in the additive effects of greater nutrient adequacy and BMD in adolescent girls. While further studies are needed, combining increased milk consumption with resistance training appears to optimize bone health in adolescent girls. [ABSTRACT FROM AUTHOR]

Published
2021
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29. The effects of a roundtrip trans-American jet travel on physiological stress, neuromuscular performance, and recovery

Author

Kraemer, William J., primary, Hooper, David R., additional, Kupchak, Brian R., additional, Saenz, Catherine, additional, Brown, Lee E., additional, Vingren, Jakob L., additional, Luk, Hui Ying, additional, DuPont, William H., additional, Szivak, Tunde K., additional, Flanagan, Shawn D., additional, Caldwell, Lydia K., additional, Eklund, Daniela, additional, Lee, Elaine C., additional, Häkkinen, Keijo, additional, Volek, Jeff S., additional, Fleck, Steven J., additional, and Maresh, Carl M., additional

Published
2016
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30. Comparing Bioactive And Immunoassay-Based Measurements Of The Growth Hormone Response To Short-Term Resistance Training At Three Intensity Levels

Author

Flanagan, Shawn D., primary, Szivak, Tunde K., additional, DuPont, William H., additional, Caldwell, Lydia K., additional, Barnhart, Emily C., additional, Borden, Emily C., additional, Saenz, Catherine, additional, Staron, Robert S., additional, Hymer, Wesley C., additional, Nindl, Bradley C., additional, and Kraemer, William J., additional

Published
2016
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31. Electromyographical and Perceptual Responses to Different Resistance Intensities in a Squat Protocol

Author

Looney, David P., primary, Kraemer, William J., additional, Joseph, Michael F., additional, Comstock, Brett A., additional, Denegar, Craig R., additional, Flanagan, Shawn D., additional, Newton, Robert U., additional, Szivak, Tunde K., additional, DuPont, William H., additional, Hooper, David R., additional, Häkkinen, Keijo, additional, and Maresh, Carl M., additional

Published
2016
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32. The Effects of Nitrate-Rich Supplementation on Neuromuscular Efficiency during Heavy Resistance Exercise

Author

Flanagan, Shawn D., primary, Looney, David P., additional, Miller, Mark J. S., additional, DuPont, William H., additional, Pryor, Luke, additional, Creighton, Brent C., additional, Sterczala, Adam J., additional, Szivak, Tunde K., additional, Hooper, David R., additional, Maresh, Carl M., additional, Volek, Jeff S., additional, Ellis, Lindsay A., additional, and Kraemer, William J., additional

Published
2016
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35. Roles of an Upper-Body Compression Garment on Athletic Performances

Author

Hooper, David R., primary, Dulkis, Lexie L., additional, Secola, Paul J., additional, Holtzum, Gabriel, additional, Harper, Sean P., additional, Kalkowski, Ryan J., additional, Comstock, Brett A., additional, Szivak, Tunde K., additional, Flanagan, Shawn D., additional, Looney, David P., additional, DuPont, William H., additional, Maresh, Carl M., additional, Volek, Jeff S., additional, Culley, Kevin P., additional, and Kraemer, William J., additional

Published
2015
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38. The Addition of Beta-hydroxy-beta-methylbutyrate and Isomaltulose to Whey Protein Improves Recovery from Highly Demanding Resistance Exercise

Author

Kraemer, William J., primary, Hooper, David R., additional, Szivak, Tunde K., additional, Kupchak, Brian R., additional, Dunn-Lewis, Courtenay, additional, Comstock, Brett A., additional, Flanagan, Shawn D., additional, Looney, David P., additional, Sterczala, Adam J., additional, DuPont, William H., additional, Pryor, J. Luke, additional, Luk, Hiu-Ying, additional, Maladoungdock, Jesse, additional, McDermott, Danielle, additional, Volek, Jeff S., additional, and Maresh, Carl M., additional

Published
2015
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40. Developmental Differences Between Boys and Girls Result in Sex-Specific Physical Fitness Changes From Fourth to Fifth Grade

Author

Flanagan, Shawn D., primary, Dunn-Lewis, Courtenay, additional, Hatfield, Disa L., additional, Distefano, Lindsay J., additional, Fragala, Maren S., additional, Shoap, Mark, additional, Gotwald, Mary, additional, Trail, John, additional, Gomez, Ana L., additional, Volek, Jeff S., additional, Cortis, Cristina, additional, Comstock, Brett A., additional, Hooper, David R., additional, Szivak, Tunde K., additional, Looney, David P., additional, DuPont, William H., additional, McDermott, Danielle M., additional, Gaudiose, Michael C., additional, and Kraemer, William J., additional

Published
2015
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41. Similar Hormonal Stress and Tissue Damage in Response to National Collegiate Athletic Association Division I Football Games Played in Two Consecutive Seasons

Author

Sterczala, Adam J., primary, Flanagan, Shawn D., additional, Looney, David P., additional, Hooper, David R., additional, Szivak, Tunde K., additional, Comstock, Brett A., additional, DuPont, William H., additional, Martin, Gerard J., additional, Volek, Jeff S., additional, Maresh, Carl M., additional, and Kraemer, William J., additional

Published
2014
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42. The Relationship Between Muscle Action and Repetition Maximum on the Squat and Bench Press in Men and Women

Author

Flanagan, Shawn D., primary, Mills, Matthew D., additional, Sterczala, Adam J., additional, Mala, Jesse, additional, Comstock, Brett A., additional, Szivak, Tunde K., additional, DuPont, William H., additional, Looney, David P., additional, McDermott, Danielle M., additional, Hooper, David R., additional, White, Mark T., additional, Dunn-Lewis, Courtenay, additional, Volek, Jeff S., additional, Maresh, Carl M., additional, and Kraemer, William J., additional

Published
2014
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43. Epinephrine Preworkout Elevation May Offset Early Morning Melatonin Concentrations to Maintain Maximal Muscular Force and Power in Track Athletes

Author

Kraemer, William J., primary, Boyd, Brittny M., additional, Hooper, David R., additional, Fragala, Maren S., additional, Hatfield, Disa L., additional, Dunn-Lewis, Courtenay, additional, Comstock, Brett A., additional, Szivak, Tunde K., additional, Flanagan, Shawn D., additional, Looney, David P., additional, Newton, Robert U., additional, Vingren, Jakob L., additional, Häkkinen, Keijo, additional, White, Mark T., additional, Volek, Jeff S., additional, and Maresh, Carl M., additional

Published
2014
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44. Influence of HMB Supplementation and Resistance Training on Cytokine Responses to Resistance Exercise

Author

Kraemer, William J., primary, Hatfield, Disa L., additional, Comstock, Brett A., additional, Fragala, Maren S., additional, Davitt, Patrick M., additional, Cortis, Cristina, additional, Wilson, Jacob M., additional, Lee, Elaine C., additional, Newton, Robert U., additional, Dunn-Lewis, Courtenay, additional, Häkkinen, Keijo, additional, Szivak, Tunde K., additional, Hooper, David R., additional, Flanagan, Shawn D., additional, Looney, David P., additional, White, Mark T., additional, Volek, Jeff S., additional, and Maresh, Carl M., additional

Published
2014
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45. Growth Hormone Dimer Release In Untrained Men And Women After Acute Resistance Exercise

Author

Luk, Hui-Ying, primary, Flanagan, Shawn D., additional, Kupchak, Brian R., additional, Comstock, Brett A., additional, Szivak, Tunde K., additional, Hooper, David R., additional, Looney, David P., additional, White, Mark T., additional, Dupont, William H., additional, Sterczala, Adam J., additional, Maladouangdock, Jesse, additional, Vingren, Jokob L., additional, Maresh, Carl M., additional, and Kraemer, William J., additional

Published
2014
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48. The Effects of High Intensity Short Rest Resistance Exercise on Muscle Damage Markers in Men and Women

Author

Heavens, Kristen R., primary, Szivak, Tunde K., additional, Hooper, David R., additional, Dunn-Lewis, Courtenay, additional, Comstock, Brett A., additional, Flanagan, Shawn D., additional, Looney, David P., additional, Kupchak, Brian R., additional, Maresh, Carl M., additional, Volek, Jeff S., additional, and Kraemer, William J., additional

Published
2014
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49. Effects of Fatigue From Resistance Training on Barbell Back Squat Biomechanics

Author

Hooper, David R., primary, Szivak, Tunde K., additional, Comstock, Brett A., additional, Dunn-Lewis, Courtenay, additional, Apicella, Jenna M., additional, Kelly, Neil A., additional, Creighton, Brent C., additional, Flanagan, Shawn D., additional, Looney, David P., additional, Volek, Jeff S., additional, Maresh, Carl M., additional, and Kraemer, William J., additional

Published
2014
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50. Concurrent Validity of the Armour39 Heart Rate Monitor Strap

Author

Flanagan, Shawn D., primary, Comstock, Brett A., additional, DuPont, William H., additional, Sterczala, Adam R., additional, Looney, Dave P., additional, Dombrowski, Dylan H., additional, McDermott, Danielle M., additional, Bryce, Alexander, additional, Maladouangdock, Jesse, additional, Dunn-Lewis, Courtenay, additional, Luk, Hui-Ying, additional, Szivak, Tunde K., additional, Hooper, David R., additional, and Kraemer, William J., additional

Published
2014
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