Sandra K Hunter

Summary

Affiliation: Marquette University
Country: USA

Publications

  1. doi request reprint Recovery from supraspinal fatigue is slowed in old adults after fatiguing maximal isometric contractions
    Sandra K Hunter
    Exercise Science Program, Department of Physical Therapy, Marquette University, Milwaukee, WI
    J Appl Physiol (1985) 105:1199-209. 2008
  2. doi request reprint Sex differences in marathon running with advanced age: physiology or participation?
    Sandra K Hunter
    Exercise Science Program, Department of Physical Therapy, Marquette University, Milwaukee, WI, USA
    Med Sci Sports Exerc 45:148-56. 2013
  3. doi request reprint Is there a sex difference in the age of elite marathon runners?
    Sandra K Hunter
    Exercise Science Program, Department of Physical Therapy, Marquette University, Milwaukee, WI 53201, USA
    Med Sci Sports Exerc 43:656-64. 2011
  4. pmc Sex differences and mechanisms of task-specific muscle fatigue
    Sandra K Hunter
    Exercise Science Program, Department of Physical Therapy, Marquette University, PO Box 1881, Milwaukee, WI 53201, USA
    Exerc Sport Sci Rev 37:113-22. 2009
  5. doi request reprint Sex differences in time to task failure and blood flow for an intermittent isometric fatiguing contraction
    Sandra K Hunter
    Department of Physical Therapy, Marquette University, Milwaukee, Wisconsin 53233, USA
    Muscle Nerve 39:42-53. 2009
  6. doi request reprint Time to task failure and muscle activation vary with load type for a submaximal fatiguing contraction with the lower leg
    Sandra K Hunter
    Department of Physical Therapy, Marquette University, P O Box 1881, Milwaukee, WI 53201, USA
    J Appl Physiol (1985) 105:463-72. 2008
  7. ncbi request reprint Supraspinal fatigue does not explain the sex difference in muscle fatigue of maximal contractions
    Sandra K Hunter
    Exercise Science Program, Department of Physical Therapy, PO Box 1881, Marquette University, Milwaukee, WI 53201, USA
    J Appl Physiol (1985) 101:1036-44. 2006
  8. ncbi request reprint Active hyperemia and vascular conductance differ between men and women for an isometric fatiguing contraction
    Sandra K Hunter
    Exercise Science Program, Department of Physical Therapy, PO Box 1881, Marquette University, Milwaukee, Wisconsin 53201, USA
    J Appl Physiol (1985) 101:140-50. 2006
  9. ncbi request reprint Muscle endurance is greater for old men compared with strength-matched young men
    Sandra K Hunter
    Department of Integrative Physiology, University of Colorado at Boulder, USA
    J Appl Physiol (1985) 99:890-7. 2005
  10. ncbi request reprint Time to task failure differs with load type when old adults perform a submaximal fatiguing contraction
    Sandra K Hunter
    Department of Integrative Physiology, University of Colorado, Boulder, Colorado, USA
    Muscle Nerve 31:730-40. 2005

Research Grants

Collaborators

Detail Information

Publications38

  1. doi request reprint Recovery from supraspinal fatigue is slowed in old adults after fatiguing maximal isometric contractions
    Sandra K Hunter
    Exercise Science Program, Department of Physical Therapy, Marquette University, Milwaukee, WI
    J Appl Physiol (1985) 105:1199-209. 2008
    ..The greater endurance with age is largely due to a difference in mechanisms located within the muscle. However, recovery from the fatiguing exercise is impaired for old adults because of greater supraspinal fatigue than in the young...
  2. doi request reprint Sex differences in marathon running with advanced age: physiology or participation?
    Sandra K Hunter
    Exercise Science Program, Department of Physical Therapy, Marquette University, Milwaukee, WI, USA
    Med Sci Sports Exerc 45:148-56. 2013
    ..The sex difference in marathon performance increases with age and place of the finisher, even at the elite level. Sociological factors may explain the increased sex gap, but there is limited empirical evidence for specific factors...
  3. doi request reprint Is there a sex difference in the age of elite marathon runners?
    Sandra K Hunter
    Exercise Science Program, Department of Physical Therapy, Marquette University, Milwaukee, WI 53201, USA
    Med Sci Sports Exerc 43:656-64. 2011
    ..The purposes of this study were to determine i) if there is a sex difference in the age of the elite marathon runners and ii) if the sex difference in performance altered across the years that women have participated in the marathon...
  4. pmc Sex differences and mechanisms of task-specific muscle fatigue
    Sandra K Hunter
    Exercise Science Program, Department of Physical Therapy, Marquette University, PO Box 1881, Milwaukee, WI 53201, USA
    Exerc Sport Sci Rev 37:113-22. 2009
    ..This review explores the novel hypothesis that variation of the task will alter the magnitude of the sex-difference in muscle fatigue and the contribution of involved mechanisms...
  5. doi request reprint Sex differences in time to task failure and blood flow for an intermittent isometric fatiguing contraction
    Sandra K Hunter
    Department of Physical Therapy, Marquette University, Milwaukee, Wisconsin 53233, USA
    Muscle Nerve 39:42-53. 2009
    ..The longer time to task failure for women compared with men for an intermittent fatiguing contraction with handgrip muscles was not explained by postcontraction hyperemia or vascular conductance with fatigue...
  6. doi request reprint Time to task failure and muscle activation vary with load type for a submaximal fatiguing contraction with the lower leg
    Sandra K Hunter
    Department of Physical Therapy, Marquette University, P O Box 1881, Milwaukee, WI 53201, USA
    J Appl Physiol (1985) 105:463-72. 2008
    ..These findings have implications for rehabilitation and ergonomics in minimizing fatigue during prolonged activation of the dorsiflexor muscles...
  7. ncbi request reprint Supraspinal fatigue does not explain the sex difference in muscle fatigue of maximal contractions
    Sandra K Hunter
    Exercise Science Program, Department of Physical Therapy, PO Box 1881, Marquette University, Milwaukee, WI 53201, USA
    J Appl Physiol (1985) 101:1036-44. 2006
    ....
  8. ncbi request reprint Active hyperemia and vascular conductance differ between men and women for an isometric fatiguing contraction
    Sandra K Hunter
    Exercise Science Program, Department of Physical Therapy, PO Box 1881, Marquette University, Milwaukee, Wisconsin 53201, USA
    J Appl Physiol (1985) 101:140-50. 2006
    ..02). Thus the briefer time to failure of men than women for an isometric fatiguing contraction is a function of the greater strength of men but is not dependent on differences in the active hyperemia and vascular conductance...
  9. ncbi request reprint Muscle endurance is greater for old men compared with strength-matched young men
    Sandra K Hunter
    Department of Integrative Physiology, University of Colorado at Boulder, USA
    J Appl Physiol (1985) 99:890-7. 2005
    ..05). These findings indicate that the longer time to task failure for the old men when performing the submaximal contraction was not due the absolute target torque exerted during the contraction...
  10. ncbi request reprint Time to task failure differs with load type when old adults perform a submaximal fatiguing contraction
    Sandra K Hunter
    Department of Integrative Physiology, University of Colorado, Boulder, Colorado, USA
    Muscle Nerve 31:730-40. 2005
    ....
  11. ncbi request reprint Influence of aging on sex differences in muscle fatigability
    Sandra K Hunter
    Exercise Science Program, Department of Physical Therapy, PO Box 1881, Marquette University, Milwaukee, WI 53201, USA
    J Appl Physiol (1985) 97:1723-32. 2004
    ..Consequently, time to task failure was related to target torque for young, but not old, adults, and differences in task duration were accompanied by parallel changes in the pressor response...
  12. ncbi request reprint Fatigability of the elbow flexor muscles for a sustained submaximal contraction is similar in men and women matched for strength
    Sandra K Hunter
    Department of Integrative Psysiology, University of Colorado, Boulder, Colorado 80309 0354, USA
    J Appl Physiol (1985) 96:195-202. 2004
    ....
  13. ncbi request reprint Muscle fatigue and the mechanisms of task failure
    Sandra K Hunter
    Exercise Science Program, Department of Physical Therapy, Marquette University, Milwaukee, WI 53201, USA
    Exerc Sport Sci Rev 32:44-9. 2004
    ....
  14. ncbi request reprint Men are more fatigable than strength-matched women when performing intermittent submaximal contractions
    Sandra K Hunter
    Department of Integrative Physiology, University of Colorado, Boulder 80309 0354, USA
    J Appl Physiol (1985) 96:2125-32. 2004
    ....
  15. ncbi request reprint Mechanisms of fatigue differ after low- and high-force fatiguing contractions in men and women
    Tejin Yoon
    Exercise Science Program, Department of Physical Therapy, Marquette University, Milwaukee, WI 53201, USA
    Muscle Nerve 36:515-24. 2007
    ..Thus, low-force, long-duration fatiguing contractions can be used in rehabilitation to induce significant fatigue within the central nervous system and potentially greater neural adaptations in men and women...
  16. pmc Fatigability and recovery of arm muscles with advanced age for dynamic and isometric contractions
    Tejin Yoon
    Exercise Science Program, Department of Physical Therapy, Marquette University, Milwaukee, WI 53201, United States
    Exp Gerontol 48:259-68. 2013
    ..Recovery of MVC torque however relies more on the recovery of supraspinal fatigue among the old men than among the young men...
  17. pmc Supraspinal fatigue impedes recovery from a low-intensity sustained contraction in old adults
    Tejin Yoon
    Exercise Science Program, Department of Physical Therapy, Marquette University, Milwaukee, Wisconsin 53201, USA
    J Appl Physiol (1985) 112:849-58. 2012
    ..Recovery of strength could be an important variable to consider in exercise prescription of old populations...
  18. ncbi request reprint Time to task failure varies with the gain of the feedback signal for women, but not for men
    Carol J Mottram
    Department of Integrative Physiology, University of Colorado, Boulder, CO 80309 0354, USA
    Exp Brain Res 174:575-87. 2006
    ....
  19. ncbi request reprint Task differences with the same load torque alter the endurance time of submaximal fatiguing contractions in humans
    Sandra K Hunter
    Department of Kinesiology and Applied Physiology, University of Colorado, Boulder, Colorado 80309 0354, USA
    J Neurophysiol 88:3087-96. 2002
    ..These results indicate that the briefer endurance time for the position task was associated with greater levels of excitatory and inhibitory input to the motor neurons compared with the force task...
  20. ncbi request reprint Activation among the elbow flexor muscles differs when maintaining arm position during a fatiguing contraction
    Sandra K Hunter
    Department of Kinesiology and Applied Physiology, University of Colorado, Boulder, Colorado 80309 0354, USA
    J Appl Physiol 94:2439-47. 2003
    ..These results, from a series of studies on the elbow flexor muscles, indicate that the type of load supported during the fatiguing contraction influences the extent to which endurance time can change with repeat performances of the task...
  21. doi request reprint Fatiguing exercise attenuates pain-induced corticomotor excitability
    Marie K Hoeger Bement
    Department of Physical Therapy, Marquette University, Milwaukee, WI 53201 1881, United States
    Neurosci Lett 452:209-13. 2009
    ..The pain-induced increase in MEPs was attenuated following the isometric fatiguing contraction and this occurred in parallel with the decrease in pain...
  22. doi request reprint Anxiety and stress can predict pain perception following a cognitive stress
    MARIE HOEGER BEMENT
    Department of Physical Therapy, Marquette University, Milwaukee, P O Box 1881, WI 53201 1881, USA
    Physiol Behav 101:87-92. 2010
    ....
  23. doi request reprint Supraspinal fatigue is similar in men and women for a low-force fatiguing contraction
    Manda L Keller
    Exercise Science Program, Department of Physical Therapy, Marquette University, Milwaukee, WI 53201, USA
    Med Sci Sports Exerc 43:1873-83. 2011
    ..Because women have greater motor responses to arousal than men, we also examined whether cortical and motor nerve stimulation, techniques used to quantify central fatigue, would alter the sex difference in muscle fatigue...
  24. ncbi request reprint Changes in muscle activation can prolong the endurance time of a submaximal isometric contraction in humans
    Sandra K Hunter
    Department of Kinesiology and Applied Physiology, University of Colorado, Boulder 80309 0354, USA
    J Appl Physiol 94:108-18. 2003
    ..The results indicate that those subjects who increased the endurance time of a submaximal contraction across three sessions did so by altering the level and pattern of muscle activation...
  25. doi request reprint Pain perception after isometric exercise in women with fibromyalgia
    Marie K Hoeger Bement
    Department of Physical Therapy, Marquette University, Milwaukee, WI 53201, USA
    Arch Phys Med Rehabil 92:89-95. 2011
    ..The purpose of this study was to identify exercise protocols incorporating isometric contractions that provide pain relief in women with fibromyalgia...
  26. doi request reprint Variation in limb support influences the time to task failure for a postural contraction
    Tejin Yoon
    Exercise Science Program, Department of Physical Therapy, Marquette University, Milwaukee, WI 53201, USA
    J Mot Behav 41:393-5. 2009
    ....
  27. pmc Sex differences in response to cognitive stress during a fatiguing contraction
    Tejin Yoon
    Exercise Science Program, Dept of Physical Therapy, Marquette Univ, P O Box 1881, Milwaukee, WI 53201, USA
    J Appl Physiol (1985) 107:1486-96. 2009
    ..The greater change in fatigability of women than men with performance of a cognitive stressor involved initial strength and increases in indexes of sympathetic neural activity and cardiac work compared with control conditions...
  28. doi request reprint Age and load compliance alter time to task failure for a submaximal fatiguing contraction with the lower leg
    Erin E Griffith
    Department of Physical Therapy, Marquette University, PO Box 1881, Milwaukee, WI 53201, USA
    J Appl Physiol (1985) 108:1510-9. 2010
    ..Minimizing load compliance to one degree of freedom during a position-control task maintained the greater fatigue resistance with age for an isometric contraction...
  29. doi request reprint Age-related muscle fatigue after a low-force fatiguing contraction is explained by central fatigue
    Tejin Yoon
    Exercise Science Program, Department of Physical Therapy, Marquette University, Milwaukee, WI 53201, USA
    Muscle Nerve 37:457-66. 2008
    ..Aging increases: (1) fatigue within the central nervous system immediately after a low-force fatiguing contraction, and (2) the potential for large neural adaptations during neuromuscular rehabilitation in old adults...
  30. doi request reprint Fatigue and recovery from dynamic contractions in men and women differ for arm and leg muscles
    Jonathon Senefeld
    Department of Physical Therapy, Marquette University, P O Box 1881, Milwaukee, Wisconsin, 53201, USA
    Muscle Nerve 48:436-9. 2013
    ..Whether there is a gender difference in fatigue and recovery from maximal velocity fatiguing contractions and across muscles is not understood...
  31. doi request reprint Dose response of isometric contractions on pain perception in healthy adults
    Marie K Hoeger Bement
    Department of Physical Therapy, Marquette University, Milwaukee, WI 53201, USA
    Med Sci Sports Exerc 40:1880-9. 2008
    ..The purpose of the study was to compare pain ratings and thresholds in men and women before and after isometric contractions of varying intensity and duration performed with the elbow flexor muscles...
  32. ncbi request reprint Variability of motor unit discharge and force fluctuations across a range of muscle forces in older adults
    Brian L Tracy
    Department of Integrative Physiology, University of Colorado, Boulder, Colorado 80523 1582, USA
    Muscle Nerve 32:533-40. 2005
    ..These findings underscore the contribution of variability of motor unit activity to motor output in normal human aging...
  33. doi request reprint The role of the menstrual cycle phase in pain perception before and after an isometric fatiguing contraction
    Marie K Hoeger Bement
    Department of Physical Therapy, Marquette University, Milwaukee, WI 53201, USA
    Eur J Appl Physiol 106:105-12. 2009
    ..These changes were not dependent on the phase of the menstrual cycle. Thus, the menstrual cycle phase does not influence the magnitude of exercise-induced analgesia...
  34. doi request reprint Stroke-related changes in neuromuscular fatigue of the hip flexors and functional implications
    Allison S Hyngstrom
    Departments of Physical Therapy, Marquette University, Milwaukee, Wisconsin, USA
    Am J Phys Med Rehabil 91:33-42. 2012
    ....
  35. ncbi request reprint Mechanisms that contribute to differences in motor performance between young and old adults
    Roger M Enoka
    Department of Kinesiology and Applied Physiology University of Colorado, Boulder, CO 80309 0354, USA
    J Electromyogr Kinesiol 13:1-12. 2003
    ....
  36. ncbi request reprint Nonuniform activation of the agonist muscle does not covary with index finger acceleration in old adults
    Douglass H Laidlaw
    Department of Kinesiology and Applied Physiology, University of Colorado, Boulder, Colorado 80309 0354, USA
    J Appl Physiol 93:1400-10. 2002
    ..Thus the greater variability in motor output exhibited by the older adults could not be explained by either the nonuniform activation of the agonist muscle or the average level of coactivation by the antagonist muscle...
  37. doi request reprint Pain relief after isometric exercise is not task-dependent in older men and women
    Kathy J Lemley
    1Department of Physical Therapy, Marquette University, Milwaukee, WI and 2Department of Physical Therapy, Concordia University Wisconsin, Mequon, WI
    Med Sci Sports Exerc 46:185-91. 2014
    ..This study assessed the effect of isometric contractions that varied in intensity and duration on pain perception in adults older than 60 yr...
  38. ncbi request reprint Effects of sprint training on extrarenal potassium regulation with intense exercise in Type 1 diabetes
    Alison R Harmer
    School of Exercise and Sport Science, The University of Sydney, PO Box 170, Lidcombe, NSW, Australia 1825
    J Appl Physiol (1985) 100:26-34. 2006
    ....

Research Grants2

  1. Task Dependence of Muscle Fatigue in Older Adults
    Sandra Hunter; Fiscal Year: 2005
    ..These preliminary findings will form the foundation for an RO 1 application that will further explore the mechanisms and task dependency of muscle fatigue in older adults. ..