Impact of Hydration Status on Electromyography and Ratings of Perceived Exertion During the Vertical Jump

Paul T Donahue, Samuel J Wilson, Charles C Williams, Melinda Valliant, John C Garner

Abstract


Background: The vertical jumping task is commonly used to assess lower-body power output in athletic populations, in addition to being commonly used to during investigations of hydration and anaerobic performance. Changes in neuromuscular function during a hypohydrated state have been proposed as a potential mechanism to decreases in anaerobic performance. Objectives: The primary purpose of this investigation was to examine the impact of hydration state on electromyography during the vertical jumping task. Methods: Twenty recreationally trained males were tested in three hydration conditions (hypohydrated, euhydrated, and control). Testing included maximal voluntary contractions of the vastus lateralis, vastus medialis, semitendinosus and medial gastrocnemius. Participants performed three maximal countermovement and squat jumps respectively for a total of six jumps in each condition. Both mean muscle activity and percentage of maximal voluntary contraction were calculated across the propulsive phase of each jump. Additionally, measures of RPE and the use of a mood rating scale were used as subjective measures. Results: No differences were seen in mean muscle activity and percentage of MVC in either of the jumping conditions (p > 0.05). Significant differences were seen with higher ratings of perceived exertion as well as lower levels of mood ratings after the hypohydrated condition (p = 0.02 and p = 0.048 respectively). Conclusions: Decrements seen in vertical jump performance during a hypohydrated state appear to be caused from changes other than neuromuscular function and muscle activity. Differences in subjective measures may provide insight into changes in motivational levels and potentially impacting performance.

Keywords


Electromyography, Dehydration, Recreationally, Athletic Injuries, Musculoskeletal

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Allen, C., Fu, Y.-C., & Garner, J. C. (2016). The Effects of a Self-Adapted, Jaw Repositioning Mouthpiece and Jaw Clenching on Muscle Activity during Vertical Jump and Isometric Clean Pull Performance. International Journal of Kinesiology and Sports Science, 4(3), 42–49. https://doi.org/10.7575/aiac.ijkss.v.4n.3p.42

Bigard, A. X., Sanchez, H., Claveyrolas, G., Martin, S., Thimonier, B., & Arnaud, M. J. (2001). Effects of dehydration and rehydration on EMG changes during fatiguing contractions. Medicine and Science in Sports and Exercise, 33(10), 1694–1700. https://doi.org/10.1097/00005768-200110000-00013

Casa, D. J., Armstrong, L. E., Hillman, S. K., Montain, S. J., Reiff, R. V., Rich, B. S. E., … Stone, J. A. (2000). National Athletic Trainers’ Association Position Statement: Fluid Replacement for Athletes. Journal of Athletic Training, 35(2), 212–224. https://doi.org/10.4085/1062-6050-50.9.07

Chavda, S., Bromley, T., Jarvis, P., Williams, S., Bishop, C., Turner, A. N., … Mundy, P. D. (2018). Force-time Characteristics of the Countermovement Jump: Analyzing the Curve in Excel. Strength and Conditioning Journal, 20(2), 67–77. https://doi.org/10.1519/SSC.0000000000000353

Cheuvront, S.N., Carter, R., Haynes, E. ., & Sawka, M. . (2006). No Effect of Moderate Hypohydration or Hyperthermia on Anaerobic Exercise Performance. Medicine & Science in Sports & Exercise, 38(6), 1093–1097. https://doi.org/10.1249/01.mss.0000222838.74015.15

Cheuvront, Samuel N., Kenefick, R. W., Ely, B. R., Harman, E. A.,

Castellani, J. W., Frykman, P. N., … Sawka, M. N. (2010). Hypohydration reduces vertical ground reaction impulse but not jump height. European Journal of Applied Physiology, 109(6), 1163–1170. https://doi.org/10.1007/s00421-010-1458-y

Cohen, J. (1988). Statistical power for the social sciences. In Hillsdale, NJ: Laurence Erlbaum and Associates.

Coutts, A. J., Reaburn, P., Piva, T. J., & Rowsell, G. J. (2007). Monitoring for overreaching in rugby league players. European Journal of Applied Physiology, 99(3), 313–324. https://doi.org/10.1007/s00421-006-0345-z

Coutts, A., Reaburn, P., Piva, T. J., & Murphy, A. (2007). Changes in selected biochemical, muscular strength, power, and endurance measures during deliberate overreaching and tapering in rugby league players. International Journal of Sports Medicine, 28(2), 116–124. https://doi.org/10.1055/s-2006-924145

Davis, J. K., Laurent, C. M., Allen, K. E., Green, J. M., Stolworthy, N. I., Welch, T. R., & Nevett, M. E. (2015). Influence of dehydration on intermittent sprint performance. Journal of Strength and Conditioning Research, 29(9), 2586–2593. https://doi.org/10.1519/JSC.0000000000000907

Ebben, W. P., & Petushek, E. J. (2010). Using the reactive strength index modified to evaluate plyometric performance. Journal of Strength and Conditioning Research, 24(8), 1983–1987. https://doi.org/10.1519/JSC.0b013e3181e72466

Evetovich, T. K., Boyd, J. C., Drake, S. M., Eschbach, L. C., Magal, M., Soukup, J. T., … Weir, J. P. (2002). Effect of moderate dehydration on torque, electromyography, and mechanomyography. Muscle and Nerve, 26(2), 225–231. https://doi.org/10.1002/mus.10203

Hayes, L. D., & Morse, C. I. (2010). The effects of progressive dehydration on strength and power: Is there a dose response? European Journal of Applied Physiology, 108(4), 701–707. https://doi.org/10.1007/s00421-009-1288-y

Hermens, H., Freriks, B., Merletti, R., Hägg, G., Stegeman, D., Blok, J., … Disselhorst-Klug, C. (1999). European Recommendations for Surface ElectroMyoGraphy, results of the SENIAM project. Roessingh Research and Development b.V.

Hoffman, J. R., Stavsky, H., & Falk, B. (1995). The effect of water restriction on anaerobic power and vertical jumping height in basketball players. International Journal of Sports Medicine, 16(4), 214–218. https://doi.org/10.1055/s-2007-972994

Hopkins, W. G. (2002). A scale of magnitudes for effect statistics. Retrieved January 8, 2019, from Sportscience website: http://www.sportsci.org/resource/stats/effectmag.html

Jones, L. C., Cleary, M. A., Lopez, R. M., Zuri, R. E., & Lopez, R. (2008). Active dehydration impairs upper and lower body anaerobic muscular power. Journal of Strength and Conditioning Research, 22(2), 455–463. https://doi.org/10.1519/JSC.0b013e3181635ba5

Judelson, D. a, Maresh, C. M., Anderson, J. M., Armstrong, L. E., Casa, D. J., Kraemer, W. J., & Volek, J. S. (2007). Hydration and muscular performance: does fluid balance affect strength, power and high-intensity endurance? Sports Medicine, 37(10), 907–921. https://doi.org/10.2165/00007256-200737100-00006

Laurent, C. M., Green, J. M., Bishop, P. A., Sjökvist, J., Schumacker, R. E., Richardson, M. T., & Curtner-Smith, M. (2011). A practical approach to monitoring recovery: Development of a perceived recovery status scale. Journal of Strength and Conditioning Research, 25(3), 620–628. https://doi.org/10.1519/JSC.0b013e3181c69ec6

McMahon, J. J., Suchomel, T. J., Lake, J. P., & Comfort, P. (2018). Understanding the Key Phases of the Countermovement Jump Force-Time Curve. Strength and Conditioning Journal, 40(4), 96–106.

Montain, S. J., & Coyle, E. F. (1992). Influence of graded dehydration on hyperthermia and cardiovascular drift during exercise. Journal of Applied Physiology, 73(4), 1340–1350. https://doi.org/10.1152/jappl.1992.73.4.1340

Osterberg, K. L., Horswill, C. A., & Baker, L. B. (2009). Pregame urine specific gravity and fluid intake by national basketball association players during competition. Journal of Athletic Training, 44(1), 53–57. https://doi.org/10.4085/1062-6050-44.1.53

Taylor, K.-L., Chapman, D. W., Cronin, J. B., Newton, M. J., & Gill, N. (2012). Fatigue Monitoring in High Performance Sport: a Survey of Current Trends. Journal of Australian Strength and Conditioning, 20(1), 12–23.

Vallier, J.-M., Grego, F., Basset, F., Lepers, R., Bernard, T., & Brisswalter, J. (2005). Effect of fluid ingestion on neuromuscular function during prolonged cycling exercise. British Journal of Sports Medicine, 39(4), 1–6. https://doi.org/10.1136/bjsm.2004.012393

Viitasalo, J. T., Kyröläinen, H., Bosco, C., & Alen, M. (1987). Effects of rapid weight reduction on force production and vertical jumping height. International Journal of Sports Medicine, 8(4), 281–285. https://doi.org/10.1055/s-2008-1025670

Volpe, S. L., Poule, K. A., & Bland, E. G. (2009). Estimation of Prepractice Hydration Status of National Collegiate Athletic Association Division I Athletes. Journal of Athletic Training, 44(6), 624–629. https://doi.org/10.4085/1062-6050-44.6.624

Walsh, R. M., Noakes, T. D., Hawley, J. A., & Dennis, S. C. (1994). Impaired high-intensity cycling performance time at low levels of dehydration. International Journal of Sports Medicine, 15(7), 392–398. https://doi.org/10.1055/s-2007-1021076

Wilson, S. J., Williams, C. C., Gdovin, J. R., Eason, J. D., Luginsland, L. A., Hill, C. M., … Garner, J. C. (2018). The Influence of an Acute Bout of Whole Body Vibration on Human Postural Control Responses. Journal of Motor Behavior, 50(5), 590–597. https://doi.org/10.1080/00222895.2017.1383225




DOI: http://dx.doi.org/10.7575/aiac.ijkss.v.7n.4p.1

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