Volume 16(2): October, 2010

TEMPERATURE AND PERFORMANCE 5

This second issue of Volume 16 of Coaching Science Abstracts reviews articles concerned with heat, cold, temperature, and fluid regulation in sports. Four previous issues, Volume 3(6), Volume 7(2), Volume 10(2), and Volume 13(2),also dealt with this topic. The information from those sources as well as that contained in this issue, will yield an extensive knowledge base of recent research in this aspect of sporting performance.

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    TABLE OF CONTENTS

    GENERAL

  1. A SECOND EXERCISE BOUT IN THE HEAT IS HARDER THAN THE FIRST

    Laird, M. D., Bergeron, M. F., Marinik, L. L., Brenner, J. S., Lou, M., & Waller, J. L. (2007). Physiological strain and perceptual differences during repeated-bout exercise in the heat. ACSM Annual Meeting New Orleans, Presentation Number 1842.

  2. LOW TEMPERATURES ARE ASSOCIATED WITH FAST MARATHON RUNS

    Ely, M. R., Cheuvront, S. N., & Montain, S. J. (2007). Neither cloud cover nor low solar loads are associated with fast marathon performance. Medicine and Science in Sports and Exercise, 39, 2029-2035.

  3. COOLING THE ARMS AND TORSO DOES NOT IMPROVE ENDURANCE IN HOT HUMID CONDITIONS

    Hohenauer, E., Clijsen, R., Cabri, J., & Clarys, P. (2009). Effect of different local cooling applications on endurance capacity during cycling. A paper presented at the 14th Annual Congress of the European College of Sport Science, Oslo, Norway, June 24-27.

  4. HEAT STRESS IS MODIFIED BY TEMPERATURE AND TYPE OF WORK AND REFLECTED IN RATINGS OF PERCEIVED EXERTION

    Green, J. M., Yang, Z., Laurent, C. M., Davis, J.-K., Kerr, K., Pritchett, R. C., & Bishop, P. A. (2007). Session RPE following interval and constant-resistance cycling in hot and cool environments. Medicine and Science in Sports and Exercise, 39, 2051-2057.

  5. HEAT STRESS AFFECTS HIGH ABILITY MARATHONERS MORE THAN LOWER ABILITY ATHLETES

    Ely, M. R., Martin, D. E., Cheuvront, S. N., & Montain, S. J. (2008). Effect of heat stress on marathon pacing is dependent on runner ability. ACSM 55th Annual Meeting Indianapolis, Presentation Number 1932.

  6. THE BODY REACTS TO A CERTAIN LEVEL OF STRESS WHETHER IT BE SINGLE OR COMBINED STRESSORS

    Girard, O., & Racinais, S. (2009). No cumulative effect of hot and hypoxic environment on thermal, cardiovascular, or metabolic strains during exercise. A paper presented at the 14th Annual Congress of the European College of Sport Science, Oslo, Norway, June 24-27.

  7. YOUNG RUNNERS REGULATE HYDRATION ADEQUATELY

    Wilk, B., & Timmons, B. W. (2008). Voluntary drinking, body hydration and aerobic performance of adolescent male athletes running in the heat. ACSM 55th Annual Meeting Indianapolis, Presentation Number 1333.

  8. FEMALES DISPLAY DIFFERENT HEAT BALANCES TO MALES WHEN MEASURES ARE CORRECTED FOR SMALLER BODY SIZE

    Dorman, L. E., Jay, O., Gagnon, D., Webb, P., DuCharme, M. B., Reardon, F. D., & Kenny, G. P. (2008). Sex differences in human heat balance at the same intermittent work loads. ACSM 55th Annual Meeting Indianapolis, Presentation Number 1934.

  9. MALES HAVE A HIGHER HEAT LOAD WHEN WORKING AT THE SAME %VO2 AS FEMALES

    Gagnon, D., Jay, O., Lemire, B., Dorman, L., & Kenny, G. P. (2008). Sex-related differences in dynamic heat balance: Metabolic heat production considerations. ACSM 55th Annual Meeting Indianapolis, Presentation Number 1935.

  10. COGNITIVE FUNCTION IS WORSE WHEN EXERCISING IN THE HEAT

    Bailey, S. P., Fredde, C., Sonnycalb, A., & Szabo, M. (2008). Effects of carbohydrate supplementation on changes in cognitive function during prolonged exercise in the heat. ACSM 55th Annual Meeting Indianapolis, Presentation Number 2422.

  11. COGNITIVE FUNCTION IS BETTER WITH CARBOHYDRATE SUPPLEMENTATION IN THE HEAT

    Bailey, S. P., Henderly, B., & Fernandez, J. (2009). Performance in a virtual environment and cognitive function during prolonged exercise in the heat. ACSM 56th Annual Meeting, Seattle, Washington, Presentation Number 713.

  12. FULL RECOVERY FROM HEAT EXPOSURE DOES NOT AFFECT SUBSEQUENT AEROBIC PERFORMANCE

    Kenefick, R. W., Palombo, L. J., Ely, B. R., Goodman, D. A., Cheuvront, S. M., & Sawka, M. N. (2009). Impact of prior heat stress on subsequent aerobic exercise performance. ACSM 56th Annual Meeting, Seattle, Washington, Presentation Number 2430.

  13. HOT CONDITIONS DO NOT AFFECT POWER PRODUCTION

    Almudehki, F. A., Girard, O., Grantham, J., Berger, N., & Racinais, S. (2009). Neuromuscular fatigue development during repeated cycling sprints in a hot environment. ACSM 56th Annual Meeting, Seattle, Washington, Presentation Number 2676.

  14. SODIUM + GLYCEROL LOADING INFLUENCES FLUID BALANCE BUT DOES NOT IMPROVE PERFORMANCE

    Levels, K., Cotter, J. D., Rehrer, N. J., Sims, S. T., & Hopman, M. T. (June 02, 2010). Pre-exercise sodium+glycerol loading aids athletes' fluid balance but not performance in the heat. Presentation 1684 at the 2010 Annual Meeting of the American College of Sports Medicine, Baltimore, Maryland; June 2-5.

    ADAPTATION

  15. HEAT ACCLIMATIZATION AT MODERATE TEMPERATURES TRANSFERS TO HOTTER TEMPERATURES

    Jonkman, A. G., Linnane, D. M., Weller, A. S., & Daanen, H. A. (2007). Acclimation to moderate heat adequately prepares individuals for work in a hotter environment. ACSM Annual Meeting New Orleans, Presentation Number 1839.

  16. COLD WATER IMMERSION AND CONTRAST WATER THERAPY IMPROVE RECOVERY

    Vaile, J., Halson, S., Gill, N., & Dawson, B. (2008). Effect of hydrotherapy on the recovery of exercise-induced fatigue and performance. ACSM 55th Annual Meeting Indianapolis, Presentation Number 803.

  17. PROTEIN ADDED TO A CHO-ELECTROLYTE BEVERAGE ENHANCES ENDURANCE PERFORMANCE

    Cathcart, A. J., Murgatroyd, S. R., McNab, A., Whyte, L. J., & Easton, C. (2008). The thermoregulatory effect of consuming a beverage containing protein during exercise. ACSM 55th Annual Meeting Indianapolis, Presentation Number 835.

  18. ELECTROLYTES ARE THE PRIMARY DRIVER FOR FLUID RETENTION

    Osterberg, K. L., Horswill, C. A., Pallardy, S. E., & Murray, R. (2008). Carbohydrate exerts a mild influence but electrolytes are the primary driver of fluid retention following exercise-induced dehydration. ACSM 55th Annual Meeting Indianapolis, Presentation Number 888.

    DYNAMICS OF TEMPERATURE ADAPTATION

  19. NECK COOLING IMPROVES THERMAL SENSATIONS AND PERFORMANCE IN EXTENDED ACTIVITY

    Tyler, C. J, & Sunderland, C. (2008). Neck cooling during exercise in the heat improves subsequent treadmill time-trial performance. ACSM 55th Annual Meeting Indianapolis, Presentation Number 2060.

  20. A COLD NECK-COLLAR IMPROVES PERFORMANCE IN THE HEAT

    Tyler, C. J., & Sunderland, C. D. (2009). Neck cooling enhances running capacity and thermal tolerance during exercise in hot conditions. ACSM 56th Annual Meeting, Seattle, Washington, Presentation Number 2673.

  21. PERFORMANCE IS AIDED BY A COLD COLLAR

    Minniti, A., Tyler, C., & Sunderland, C. (2009). Effect of a cooling collar on affect, perceived exertion and running performance in the heat. ACSM 56th Annual Meeting, Seattle, Washington, Presentation Number 997.

  22. AIRFLOW NEEDED TO CONTROL THERMOREGULATION IN THE HEAT

    Mora-Rodriguez, R., Del Coso, J., Aguado-Jiminez, R., & Estevez, E. (2007). Separate and combined effects of airflow and rehydration during exercise in the heat. Medicine and Science in Sports and Exercise, 39, 1720-1726.

  23. COLD BEVERAGES PROMOTE IMPROVED BODY TEMPERATURES AND PERFORMANCE WHEN EXERCISING IN THE HEAT

    Burdon, C. A., O'Connor, H. T., Gifford, J. A., Chapman, P. G., & Shirreffs, S. M. (2009). Effect of sports beverage temperature on body temperature and cycling performance in the heat. ACSM 56th Annual Meeting, Seattle, Washington, Presentation Number 2671.

  24. COOL SHIRT OF NO PERFORMANCE BENEFIT

    Brooks-Friery, K., & Nipper, M. (2009). Cool Shirt use as an ergogenic aid in distance runners training in North Louisiana. ACSM 56th Annual Meeting, Seattle, Washington, Presentation Number 2674.

  25. MENSTRUAL CYCLE PHASE DOES AFFECT SOME EXERCISE PARAMETERS

    Ishijima, T., Hashimoto, H., Satou, K., Kanosue, K., Muraoka, I., Suzuki, Ki. & Higuchi, M. (2009). The effect of menstrual cycle on cardiovascular and subjective response during prolonged submaximal exercise in the heat. A paper presented at the 14th Annual Congress of the European College of Sport Science, Oslo, Norway, June 24-27.

    HYDRATION, DEHYDRATION, AND REHYDRATION

  26. HYDRATE EARLY RATHER THAN LATTER TO PRESERVE PERFORMANCE CAPABILITY

    Collins, S., Sawyer, J., Gregory, S., Van Langen, D., Dietel, K., Matthews, T., & Paolone, V. (June 02, 2010). Influence of rate of rehydration on exercise performance in dehydrated males. Presentation 1685 at the 2010 Annual Meeting of the American College of Sports Medicine, Baltimore, Maryland; June 2-5.

  27. GLYCEROL OF NO PERFORMANCE OR THERMOREGULATORY ADVANTAGE WHEN RUNNING IN THE HEAT

    Garver, M. J., Hovey, G., Nielsen, L., Dickinson, J., Melvin, N., Schaefer, T., Gee, D., Nethery, V., & Papadopoulos, C. (2007). Effect of glycerol hyperhydration on running performance in the heat. ACSM Annual Meeting New Orleans, Presentation Number 1868.

  28. INTERMITTENT GLYCEROL INGESTION REDUCES FLUID LOSS

    Burns, S. (2008). Physiological responses to glycerol ingestion and hyperhydration. ACSM 55th Annual Meeting Indianapolis, Presentation Number 1339.

  29. METERED FLUID REPLACEMENT BEST IN DEHYDRATED INDIVIDUALS

    Jones, E. J., Bishop, P. A., Green, J. M., & Richardson, M. T. (2007). Effects of metered vs. bolus water consumption on urine production and rehydration. ACSM Annual Meeting New Orleans, Presentation Number 730.

  30. REHYDRATION DURING EXERCISE IS BENEFICIAL

    Mora-Rodríguez, R., Coso, J. D., Estevez, E., Hamouti, N., & Ortega, J. F. (2007). Effects of oral rehydration on thermoregulation of trained and untrained subjects exercising at different intensities. ACSM Annual Meeting New Orleans, Presentation Number 728.

  31. CHICKEN NOODLE SOUP AIDS IN REHYDRATION AND ENDURANCE EXERCISE CAPACITY

    Yan, H., Weber, T. M., Sullivan, Z. M., Sharp, R. L., & King, D. S. (2009). The effect of sodium and carbohydrate in a rehydration food on subsequent exercise performance. ACSM 56th Annual Meeting, Seattle, Washington, Presentation Number 1975.

  32. HYPOHYDRATION REDUCES RESISTANCE EXERCISE PERFORMANCE

    Judelson, D. A., Maresh, C. M., Farrell, M. J., Yamamoto, L. M., Armstrong, L. E., Kraemer, W. J., Volek, J. S., Spiering, B. A., Casa, D. J., & Anderson, J. M. (2007). Effect of hydration state on strength, power, and resistance exercise performance. Medicine and Science in Sports and Exercise, 39, 1817-1824.

  33. MODERATE HYPOHYDRATION DOES NOT IMPAIR ANAEROBIC PERFORMANCE

    Stembridge, C., Boulant, C. G., & Thorne, R. (2008). The effect of hypohydration on anaerobic exercise performance. ACSM 55th Annual Meeting Indianapolis, Presentation Number 1340.

  34. 3+% PRE-EXERCISE HYPOHYDRATION HARMS ENDURANCE PERFORMANCE

    Gigou, P-Y., Lamontagne-Lacasse, M., & Goulet, E. D. (June 2, 2010). Meta-analysis of the effects of pre-exercise hypohydration on endurance performance, lactate threshold, and VO2. Presentation 1679 at the 2010 Annual Meeting of the American College of Sports Medicine, Baltimore, Maryland; June 2-5.

  35. EXCESSIVE WATER LOSS BEFORE EXERCISE IMPAIRS MUSCULAR PERFORMANCE

    Goulet, E. D., Lamontagne-Lacasse, M., Gigou, P-Y., Kenefick, R. W., Ely, B. R., & Cheuvront, S. (June 2, 2010). Pre-exercise hypohydration effects on jumping ability and muscle strength, endurance, and anaerobic capacity: A meta-analysis. Presentation 1681 at the 2010 Annual Meeting of the American College of Sports Medicine, Baltimore, Maryland; June 2-5.

  36. DEHYDRATION IMPAIRS ENDURANCE PERFORMANCE

    Goulet, E. D., Mélançon, M. O., & Madjar, K. (2008). Meta-analysis of the effect of exercise-induced dehydration on endurance performance. ACSM 55th Annual Meeting Indianapolis, Presentation Number 2177.

  37. DEHYDRATION REDUCES PERFORMANCE AND INCREASES THERMAL STRESS

    Casa, D. J., Stearns, R. L., Lopez, R. M., Ganio, M. S. McDermott, B. P., Yamamoto, L. M., Yeargin, S. W., Roti, M. W., & Armstrong, L. E. (2008). Influence of hydration at various intensities during trail running in the heat. ACSM 55th Annual Meeting Indianapolis, Presentation Number 832.

  38. DEHYDRATION AND HEAT INTERFERES WITH FIELD-HOCKEY SKILLS

    Macleod, H., & Sunderland, C. (2009). Effect of hypohydration and intermittent running in the heat on field hockey skill performance. ACSM 56th Annual Meeting, Seattle, Washington, Presentation Number 2668.

  39. HEAT AND DEHYDRATION CAUSE PERFORMANCE DECLINE

    Siegler, J. C., Hillman, A., Vince, R., Taylor, L., McNaughton, L. (June 02, 2010). The influence of heat and dehydration on cycling time-trial performance. Presentation 1683 at the 2010 Annual Meeting of the American College of Sports Medicine, Baltimore, Maryland; June 2-5.

  40. DEHYDRATION AFFECTS SOME PSYCHOLOGICAL VARIABLES

    Armstrong, L. E., Ganio, M. S., Lee, E. C., McDermott, B. P., Klau, J. F., Yamamoto, L. M., Marzano, S., Lopez, R., Beasley, K. N., Jiminez, L., Le Bellego, L., Chevillotte, E., Casa, D. J., & Lieberman, H. R. (June 02, 2010). Degraded cognitive performance and increased fatigue in men following mild dehydration at 1.59% body mass loss. Presentation 1686 at the 2010 Annual Meeting of the American College of Sports Medicine, Baltimore, Maryland; June 2-5.

  41. ELITE MARATHONERS SHOULD DRINK AD LIBITUM

    Fudge, B. W., & Pitsiladis, Y. P. (2009). Efficacy of prevailing fluid intake recommendations for elite marathon running. ACSM 56th Annual Meeting, Seattle, Washington, Presentation Number 1972.

  42. AD LIBITUM DRINKING SEEMS ADEQUATE FOR ULTRAMARATHON RACES

    Hew-Butler, T. D., Tam, N., Nolte, H., & Noakes, T. (2009). Maintenance of total body water despite body weight loss during an ultramarathon. ACSM 56th Annual Meeting, Seattle, Washington, Presentation Number 2348.

  43. SOCCER PRACTICE REQUIRES CONSIDERABLE FLUID REPLACEMENT

    Downey, N. R., Buddo, K., Palmer, M. S., & Spriet, L. L. (2008). The effect of fluid ingestion during soccer training on fluid balance and aerobic test performance. ACSM 55th Annual Meeting Indianapolis, Presentation Number 833.

  44. EXTRA SALT IN SPORTS DRINKS REDUCES DEHYDRATION

    Goforth, H. W., & Koreerat, N. (2009). Hyperhydration in resting trained males: Effects of solutions with differing concentrations of sodium. ACSM 56th Annual Meeting, Seattle, Washington, Presentation Number 2103.

  45. GLYCEROL HYPERHYDRATION IS SIMILAR TO WATER HYPERHYDRATION WHEN RUNNING A LONG DISTANCE

    Scheadler, C. M. Garver, M. J., DiGeronimo, M. K., Huber, C. M., Kirby, T. E., & Devor, S. T. (June 02, 2010). Glycerol hyperhydration and endurance running performance in the heat. Presentation 1682 at the 2010 Annual Meeting of the American College of Sports Medicine, Baltimore, Maryland; June 2-5.

    PRE-COOLING

  46. PRE-COOLING DOES NOT IMPROVE ENDURANCE TIME-TRIAL PERFORMANCE

    Czajka, A., Brandenburg, J. P., Pitney, W. A., & Lukaszuk, J. M. (2008). The effects of cooling vests on endurance performance in the warm temperatures. ACSM 55th Annual Meeting Indianapolis, Presentation Number 2059.

  47. PRE-COOLING DOES NOT ALTER RUNNING ECONOMY IN RUNNERS

    Winke, M., & Yates, J. W. (2008). Pre-cooling and running economy. ACSM 55th Annual Meeting Indianapolis, Presentation Number 800.

  48. REPETITIVE PRE-COOLING ONLY IMPROVES THE PRE-COOLING RESPONSE

    Kocjan, N., Schatti, O., Bogerd, C. P., & Rossi, R. M. (2009). The effect of repetitive cooling on pre-cooling efficiency and exercise performance: A pilot study. A paper presented at the 14th Annual Congress of the European College of Sport Science, Oslo, Norway, June 24-27.

  49. PRE-COOLING DOES NOT AFFECT THE CONTRACTILE FUNCTION OF MUSCLES

    Duffield, R., Green, R., Castle, P., & Maxwell, N. (2009). The effects of pre-cooling on performance, pacing strategy, and contractile function during endurance cycling in the heat. A paper presented at the 14th Annual Congress of the European College of Sport Science, Oslo, Norway, June 24-27.

  50. PRE-COOLING IMPROVES DISTANCE-SWIMMING PERFORMANCE

    Kocjan, N., Bogerd, C. P., Allenspach, P., Perret, C., & Rossi, R. M. (2009). Does pre-cooling improve 1,500 m swimming performance? A paper presented at the 14th Annual Congress of the European College of Sport Science, Oslo, Norway, June 24-27.

  51. CRUSHED-ICE INGESTION LOWERS THERMAL STRESS AND IMPROVES EXTENSIVE PERFORMANCES

    Peeling, P., Ihsan, M., & Landers, G. (2009). The effect of crushed ice on 40 km cycling time-trial performance. A paper presented at the 14th Annual Congress of the European College of Sport Science, Oslo, Norway, June 24-27.

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