Search Results - "Muza, S R"

Carbohydrate supplementation improves time-trial cycle performance during energy deficit at 4,300-m altitude by Fulco, C. S, Kambis, K. W, Friedlander, A. L, Rock, P. B, Muza, S. R, Cymerman, A

“…1 United States Army Research Institute of Environmental Medicine, Natick, Massachusetts; 2 The College of William and Mary, Williamsburg, Virginia; 3…”
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Carbohydrate supplementation and endurance performance of moderate altitude residents at 4300 m by Fulco, C S, Zupan, M, Muza, S R, Rock, P B, Kambis, K, Payn, T, Hannon, M, Glickman, E, Cymerman, A

“…Recent work from our laboratory demonstrated that carbohydrate supplementation (CHOS) during exercise improved prolonged time-trial (TT) performance of…”
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Acute Mountain Sickness, Hypoxia, Hypobaria and Exercise Duration each Affect Heart Rate by DiPasquale, D M, Strangman, G E, Harris, N S, Muza, S R

“…In this study, we quantified the changes in post-exercise resting heart rate (HRrst) associated with acute mountain sickness (AMS), and compared the effects of…”
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Influence of recent altitude exposure on sea level sympathetic neural & hemodynamic responses to orthostasis by Mitchell, K.M., Bradbury, K.E., Posch, A.M., Beidleman, B.A., Fulco, C.S., Muza, S.R., Charkoudian, N.

“…Although it has been shown that muscle sympathetic nerve activity increases during high altitude exposure, mechanisms of sympathoexcitation and blood pressure…”
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Exercise VE and physical performance at altitude are not affected by menstrual cycle phase by Beidleman, Beth A, Rock, Paul B, Muza, Stephen R, Fulco, Charles S, Forte, Vincent A., Jr, Cymerman, Allen

“…Thermal and Mountain Medicine Division, United States Army Research Institute of Environmental Medicine, Natick, Massachusetts 01760 We hypothesized that…”
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Slower fatigue and faster recovery of the adductor pollicis muscle in women matched for strength with men by FULCO, C. S, ROCK, P. B, MUZA, S. R, LAMMI, E, CYMERMAN, A, BUTTERFIELD, G, MOORE, L. G, BRAUN, B, LEWIS, S. F

“…In previous gender comparisons of muscle performance, men and women rarely have been closely matched, absolute force has not been equalized, and rates of…”
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Thermoregulatory and blood responses during exercise at graded hypohydration levels by Sawka, M N, Young, A J, Francesconi, R P, Muza, S R, Pandolf, K B

“…We studied the effects of graded hypohydration levels on thermoregulatory and blood responses during exercise in the heat. Eight heat-acclimated male subjects…”
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Altitude acclimatization and blood volume: effects of exogenous erythrocyte volume expansion by Sawka, M N, Young, A J, Rock, P B, Lyons, T P, Boushel, R, Freund, B J, Muza, S R, Cymerman, A, Dennis, R C, Pandolf, K B, Valeri, C R

“…We studied sea-level residents during 13 days of altitude acclimatization to determine 1) altitude acclimatization effects on erythrocyte volume and plasma…”
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Adductor pollicis muscle fatigue during acute and chronic altitude exposure and return to sea level by Fulco, C S, Cymerman, A, Muza, S R, Rock, P B, Pandolf, K B, Lewis, S F

“…Large muscle exercise performance is impaired during acute exposure to normobaric or hypobaric hypoxia, but the effects of hypoxic conditions on fatigue of…”
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Reproducible voluntary muscle performance during constant work rate dynamic leg exercise by Fulco, C S, Rock, P B, Muza, S R, Lammi, E, Cymerman, A, Lewis, S F

“…During constant intensity treadmill or cycle exercise, progressive muscle fatigue is not readily quantified and endurance time is poorly reproducible. However,…”
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Subjective symptoms and postural control during a disabled submarine simulation by Cymerman, A, Young, A J, Francis, T J R, Wray, D D, Ditzler, D T, Stulz, D, Bovill, M, Muza, S R

“…To simulate conditions aboard a disabled submarine, 7 submariners were confined for 5 d to a normobaric environment of 16.75% O2, 2.5% CO2, 4 degrees C, and…”
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Effect of lung volume on the respiratory action of the canine sternomastoid by Muza, S R, Criner, G J, Kelsen, S G

“…We tested the hypothesis that because the resting length of the canine sternomastoid (SM) muscles is relatively insensitive to lung volume change, the SM may…”
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Human thermoregulatory responses to cold air are altered by repeated cold water immersion by Young, A J, Muza, S R, Sawka, M N, Gonzalez, R R, Pandolf, K B

“…The effects of repeated cold water immersion on thermoregulatory responses to cold air were studied in seven males. A cold air stress test (CAST) was performed…”
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Women at altitude: carbohydrate utilization during exercise at 4,300 m by Braun, Barry, Mawson, Jacinda T, Muza, Stephen R, Dominick, Shannon B, Brooks, George A, Horning, Michael A, Rock, Paul B, Moore, Lorna G, Mazzeo, Robert S, Ezeji-Okoye, Steven C, Butterfield, Gail E

“…1  Aging Study Unit, Geriatric Research, Education, and Clinical Center, Veterans Affairs Health Care System, and Division of Gerontology, Endocrinology, and…”
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Inspiratory resistance effects on exercise breathing pattern relationships to chemoresponsiveness by Muza, S R, Levine, L, Latzka, W A, Sawka, M N

“…This study examined the effects of added inspiratory resistance (R5 5 cm H2O.L-1.S-1) on the relationship between exercise breathing pattern and resting…”
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Effects of erythrocyte infusion on VO2max at high altitude by Young, A J, Sawka, M N, Muza, S R, Boushel, R, Lyons, T, Rock, P B, Freund, B J, Waters, R, Cymerman, A, Pandolf, K B, Valeri, C R

“…This study investigated whether autologous erythrocyte infusion would ameliorate the decrement in maximal O2 uptake (VO2max) experienced by lowlanders when…”
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Effect of lung volume on the respiratory action of the canine pectoral muscles by Muza, S R, Criner, G J, Kelsen, S G

“…Lung volume influences the mechanical action of the primary inspiratory and expiratory muscles by affecting their precontraction length, alignment with the rib…”
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Thermoregulation during cold water immersion is unimpaired by low muscle glycogen levels by Young, A J, Sawka, M N, Neufer, P D, Muza, S R, Askew, E W, Pandolf, K B

“…This investigation studied the importance of muscle glycogen levels for body temperature regulation during cold stress. Physiological responses of eight…”
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Polycythemia and hydration: effects on thermoregulation and blood volume during exercise-heat stress by Sawka, M N, Gonzalez, R R, Young, A J, Muza, S R, Pandolf, K B, Latzka, W A, Dennis, R C, Valeri, C R

“…We studied the effects of autologous erythrocyte infusion on thermoregulation and blood volume during exercise in the heat. Specifically, we wanted to…”
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Exercise responses after altitude acclimatization are retained during reintroduction to altitude by BEIDLEMAN, B. A, MUZA, S. R, ROCK, P. B, FULCO, C. S, LYONS, T. P, HOYT, R. W, CYMERMAN, A

“…Following 2 to 3 wk of altitude acclimatization, ventilation is increased and heart rate (HR), plasma volume (PV), and lactate accumulation ([La]) are…”
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