After finishing my PhD at Bangor University investigating body composition in patients living with chronic kidney disease, I completed a Post Doc in the Renal Unit at Gwynedd Hospital, studying fatigue. I returned to the University and I am now a Professor in Sport and Exercise Science, particularly collaborating with colleagues within The Institute for Applied Human Physiology (http://iahp.bangor.ac.uk).

I teach and complete research and impact activities in two distinct areas: i) physical activity to prevent and treat chronic disease; and ii) how to enhance health and performance of outdoor practitioners.  

Physical Activity:

I maintain my honorary contract with the local Health Board and lead their kidney disease exercise rehabilitation program. I am Co-Chair of the Kidney Research UK Physical Activity, Rehabilitation and Wellbeing Clinical Study Group (www.kidneyresearchuk.org/research/exercise), I am the exercise and nutrition thematic lead for the Wales Kidney Research Unit (www.kidneyresearchunit.wales) and a founder member of the Welsh Institute for Physical Activity, Health and Sport (www.swansea.ac.uk/sports-science/astem/wipahs). I am currently involved in three multicentre studies: PEDAL (PrEscription of intra-Dialytic exercise to improve quAlity of Life: www.ukctg.nihr.ac.uk/trials/trial-details/trial-details?trialNumber=NCT02222402); BISTRO (BioImpedance Spectroscopy to maintain Renal Output: www.keele.ac.uk/bistro), and evaluation of the Kidney Beam platform (www.beamfeelgood.com/kidney%20disease). 

Outdoor practitioners:

various businesses and charities working in the outdoor sector, including Mountain Rescue England and Wales.  My interest in high altitude physiology has led me to participating in a number of medical research expeditions and high-altitude laboratory chamber studies.

Email: j.h.macdonald@bangor.ac.uk

Phone: +44 1248 38 3272

Twitter: @sportscimac

Instagram: @jamiehugomacdonald

Brief bio:

After graduating with a Sport Science degree and working as freelance Outdoor Activities Instructor for some years, I returned to academia to complete my PhD in clinical exercise physiology. I am now a Professor in Sport and Exercise Science within the School of Psychology and Sport Science at Bangor University (www.bangor.ac.uk/sport).

I teach and complete research and impact activities in two distinct areas: i) physical activity to prevent and treat chronic disease; and ii) how to enhance health and performance in high altitude environments. 

• Profesiynol: Good Clinical Practice eLearning (Secondary Care)
  National Institute for Health Research, 2016
• Profesiynol: Fellow
  Higher Education Academy, 2011
• PhD: Clinical Exercise Physiology
  2006
• BSc: Sport Science
  2001

I teach Advanced Research Design (JXH-4403 and JXH-4209) to our Masters and distance learning students and professional Life Skills to our Undergraduate students (JXH-1064). 

I typically supervise undergraduate and masters project/dissertation students, intercalated students, Foundation Year 2 Medical Doctors, and three PhD students.

I research two distinct areas: i) clinical exercise physiology in chronic kidney disease; ii) how to enhance health and performance of outdoor practitioners. 

Rwyf yn barod i oruchwylio myfyrwyr mewn unrhyw un o fy nau faes ymchwil  (ffisioleg ymarfer clinigol mewn clefyd cronig yr arennau neu ffisioleg uchder uchel).

2024

• CyhoeddwydDigital Remote Monitoring Using an mHealth Solution for Survivors of Cancer: Protocol for a Pilot Observational Study
  Innominato, P. F., Macdonald, J., Saxton, W., Longshaw, L., Granger, R., Naja, I., Allocca, C., Edwards, R., Rasheed, S., Folkvord, F., de Battle, J., Ail, R., Motta, E., Bale, C., Fuller, C., Mullard, A. P., Subbe, C., Griffiths, D., Wreglesworth, N., Pecchia, L., Fico, G. & Antonini, A., 30 Ebr 2024, Yn: JMIR Research Protocols. 13, t. e52957 e52957.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydEvaluating the effect of a digital health intervention to enhance physical activity in people with chronic kidney disease (Kidney BEAM): a multicentre, randomised controlled trial in the UK
  Greenwood, S. A., Young, H. M. L., Briggs, J., Castle, E. M., Walklin, C., Haggis, L., Balkin, C., Asgari, E., Bhandari, S., Burton, J. O., Billany, R. E., Bishop, N. C., Bramham, K., Campbell, J., Chilcot, J., Cooper, N. J., Deelchand, V., Graham-Brown, M., Hamilton, A., Jesky, M., Kalra, P. A., Koufaki, P., McCafferty, K., Nixon, A. C., Noble, H., Saynor, Z. L., Taal, M. W., Tollit, J., Wheeler, D. C., Wilkinson, T. J., Worboys, H. & Macdonald, J., Ion 2024, Yn: The Lancet Digital Health. 6, 1, t. e23-e32
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydResting oral mucosal immunity varies across the menstrual cycle
  Harrison, S., Macdonald, J. & Oliver, S., 26 Meh 2024.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Crynodeb

2023

• CyhoeddwydAchieving Consensus on Psychosocial and Physical Rehabilitation management for People Living with Kidney Disease.
  Coyne, E., Briggs, J., Loud, F., Bristow, P., Young, H. M. L., Castle, E. M., Lightfoot, C. J., Graham-Brown, M., Eyre, M., Ormandy, P., Sachar, A., Bevin, A., Burton, J. O., Wilkinson, T. J., Koufaki, P., Macdonald, J., Ashman, N. & Greenwood, S. A., Tach 2023, Yn: Clinical Kidney Journal. 16, 11, t. 2185-2193 9 t.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydBio-impedance spectroscopy added to a fluid management protocol does not improve preservation of residual kidney function in incident hemodialysis patients in a randomized controlled trial
  Davies, S., Coyle, D., Lindley, E. J., Keane, D., Belcher, J., Caskey, F., Dasgupta, I., Davenport, A., Farrington, K., Mitra, S., Ormandy, P., Wilkie, M., Macdonald, J., Zanganeh, M., Andronis, L., Solis-Trapala, I. & Sim, J., Medi 2023, Yn: Kidney International. 104, 3, t. 587-598
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydDigitally delivered exercise increased habitual physical activity in people with obesity
  Harrison, S., Macdonald, J., Cliffe, M., Cooney, J., Boulter, M. W., Beattie, S. & Harkinson, R., Mai 2023, t. 164-165.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Crynodeb
• CyhoeddwydFeasibility of Randomized Controlled Trials and long-term implementation of interventions: insights from a qualitative process evaluation of the PEDAL Trial
  Bulley, C., Koufaki, P., Macdonald, J., Macdougall, I. C., Mercer, T. H., Scullion, J. & Greenwood, S. A., 1 Chwef 2023, Yn: Frontiers in Rehabilitation Sciences. 4, 1, 15 t., 1100084.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydHypoxia-induced endothelial dysfunction: Could targeting oxidative stress provide protection?
  Rossetti, G., Oliver, S., Sandoo, A. & Macdonald, J., 26 Mai 2023, Yn: Experimental Physiology. 108, 8, t. 1026-1028 3 t.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydThe effect of a novel, digital physical activity and emotional well-being intervention on health-related quality of life in people with chronic kidney disease: trial design and baseline data from a multicentre prospective, wait-list randomised controlled trial (kidney BEAM)
  Walklin, C. G., Young, H. M. L., Asghari, E., Bhandari, S., Billany, R. E., Bishop, N., Bramham, K., Briggs, J., Burton, J. O., Campbell, J., Castle, E. M., Chilcot, J., Cooper, N., Deelchand, V., Graham-Brown, M. P. M., Hamilton, A., Jesky, M., Kalra, P. A., Koufaki, P., McCafferty, K., Nixon, A. C., Noble, H., Saynor, Z. L., Sothinathan, C., Taal, M. W., Tollitt, J., Wheeler, D. C., Wilkinson, T. J., Macdonald, J. H. & Greenwood, S. A., 2 Mai 2023, Yn: BMC Nephrology. 24, 1, 17 t., 122.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

2022

• CyhoeddwydClinical practice guideline exercise and lifestyle in chronic kidney disease
  Baker, L. A., March, D. S., Wilkinson, T. J., Billany, R. E., Bishop, N. C., Castle, E. M., Chilcot, J., Davies, M. D., Graham-Brown, M. P. M., Greenwood, S. A., Junglee, N. A., Kanavaki, A. M., Lightfoot, C. J., Macdonald, J. H., Rossetti, G. M. K., Smith, A. C. & Burton, J. O., 22 Chwef 2022, Yn: BMC Nephrology. 23, 75, 36 t.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydExercise Testing in Chronic Kidney Disease
  Koufaki, P., Greenwood, S. & Macdonald, J., 2022, Sport and Exercise Physiology Testing Guidelines: Volume II - Exercise and Clinical Testing. The British Association of Sport and Exercise Sciences Guide (2nd edition). . Davison, R. (gol.). 2 gol. Routledge, 4
  Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod
• CyhoeddwydGlobal Policy Barriers and Enablers to Exercise and Physical Activity in Kidney Care
  Global Renal Exercise Network (GREX), Bennett, P. N., Kohzuki, M., Bohm, C., MacDonald, J., Zimmerman, D. & Thompson, S., Gorff 2022, Yn: Journal of Renal Nutrition. 32, 4, t. 441-449 9 t.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydHypoxia alters posterior cingulate cortex metabolism during a memory task: a 1H fMRS study
  Rogan, M., Friend, A., Rossetti, G. M. K., Edden, R. A. E., Mikkelsen, M., Oliver, S., Macdonald, J. & Mullins, P., 15 Hyd 2022, Yn: Neuroimage. 260, 119397.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydThe Role of Exercise Training in Delaying Kidney Function Decline in Non-Dialysis-Dependent Chronic Kidney Disease
  Davies, M., Sandoo, A. & Macdonald, J., 25 Mai 2022, Yn: Kidney and Dialysis. 2, 2, t. 262-286 5 t.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

2021

• CyhoeddwydBilateral regional extracranial blood flow regulation to hypoxia and unilateral duplex ultrasound measurement error
  Friend, A., Rogan, M., Rossetti, G., Lawley, J., Mullins, P., Sandoo, A., Macdonald, J. & Oliver, S., 1 Gorff 2021, Yn: Experimental Physiology. 106, 7, t. 1535-1548 14 t.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydExercise programme to improve quality of life for patients with end-stage kidney disease receiving haemodialysis: the PEDAL RCT
  Greenwood, S. A., Koufaki, P., Macdonald, J., Bulley, C., Bhandari, S., Burton, J. O., Dasgupta, I., Farrington, K., Ford, I., Kalra, P. A., Kumwenda, M., Macdougall, I. C., Messow, C.-M., Mitra, S., Reid, C., Smith, A. C., Taal, M. W., Thompson, P. C., Wheeler, D. C., White, C., Yaqoob, M. & Mercer, T., 1 Meh 2021, Yn: Health Technology Assessment. 25, 40, 52 t.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydMEDEX 2015: Prophylactic effects of positive expiratory pressure in trekkers at very high altitude.
  Rupp, T., Maufrais, C., Walther, G., Esteve, F., Macdonald, J., Bouzat, P. & Verges, S., 21 Medi 2021, Yn: Frontiers in Physiology. 12, 710622.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydRandomized Trial-PrEscription of intraDialytic exercise to improve quAlity of Life in Patients Receiving Hemodialysis
  Greenwood, S. A., Koufaki, P., Macdonald, J., Bhandari, S., Burton, J. O., Dasgupta, I., Farrington, K., Ford, I., Kalra, P. A., Kean, S., Kumwenda, M., Macdougall, I. C., Messow, C.-M., Mitra, S., Reid, C., Smith, A. C., Taal, M. W., Thompson, P. C., Wheeler, D. C., White, C., Yaqoob, M. & Mercer, T., 1 Awst 2021, Yn: Kidney International Reports. 6, 8, t. 2159-2170 12 t.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydReversal of neurovascular coupling in the default mode network: Evidence from hypoxia
  Rossetti, G., d'Avossa, G., Rogan, M., Macdonald, J., Oliver, S. & Mullins, P., Ebr 2021, Yn: Journal of Cerebral Blood Flow and Metabolism. 41, 4, t. 805–818 14 t.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydThe deleterious effects of acute hypoxia on microvascular and large vessel endothelial function
  Jones, D., Macdonald, J., Sandoo, A., Oliver, S. & Rossetti, G., 1 Awst 2021, Yn: Experimental Physiology. 106, 8, t. 1699-1709
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydThe rapid development of a novel kidney-specific digital intervention for self-management of physical activity and emotional well-being during the COVID-19 pandemic and beyond: Kidney Beam
  Mayes, J., Billany, R. E., Vadaszy, N., Young, H. M. L., Castle, E. M., Bishop, N. C., Bramham, K., Nixon, A. C., Wilkinson, T. J., Hamilton, A. J., Saynor, Z. L., Chilcot, J., Picariello, F., Macdonald, J. & Greenwood, S. A., 1 Rhag 2021, Yn: Clinical Kidney Journal. 15, 3, t. 571-573 3 t.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Llythyr › adolygiad gan gymheiriaid

2020

• CyhoeddwydThe PrEscription of intraDialytic exercise to improve quAlity of Life in patients with chronic kidney disease trial: study design and baseline data for a multicentre randomized controlled trial
  Greenwood, S. A., Koufaki, P., Macdonald, J., Bhandari, S., Burton, J., Dasgupta, I., Farrington, K., Ford, I., Kalra, P. A., Kean, S., Kumwenda, M., Macdougall, I. C., Messow, C.-M., Mitra, S., Reid, C., Smith, A. C., Taal, M. W., Thomson, P. C., Wheeler, D. C., White, C., Yaqoob, M. & Mercer, T. H., 10 Medi 2020, Yn: Clinical Kidney Journal. 14, 5, t. 1345-1355 11 t.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

2019

• CyhoeddwydRenal Association Clinical Practice Guideline on Haemodialysis
  Ashby, D., Borman, N., Burton, J., Corbett, R., Davenport, A., Farrington, K., Flowers, K., Fotheringham, J., Andrea Fox, R. N., Franklin, G., Gardiner, C., Martin Gerrish, R. N., Greenwood, S., Hothi, D., Khares, A., Koufaki, P., Levy, J., Lindley, E., Macdonald, J., Mafrici, B., Mooney, A., Tattersall, J., Tyerman, K., Villar, E. & Wilkie, M., 17 Hyd 2019, Yn: BMC Nephrology. 20, 1, t. 379
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydThe Effects of Beetroot Juice on Blood Pressure, Microvascular Function and Large-Vessel Endothelial Function: A Randomized, Double-Blind, Placebo-Controlled Pilot Study in Healthy Older Adults.
  Jones, T., Dunn, E., Macdonald, J., Kubis, H.-P., McMahon, N. & Sandoo, A., 2 Awst 2019, Yn: Nutrients. 11, 8, t. 1792
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydThe effects of intradialytic exercise on hemodialysis adequacy: A systematic review.
  Kirkman, D. L., Scott, M., Kidd, J. & Macdonald, J., Gorff 2019, Yn: Seminars in Dialysis. 32, 4, t. 368-378 11 t.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl adolygu › adolygiad gan gymheiriaid

2018

• CyhoeddwydThe 2018 Lake Louise Acute Mountain Sickness Score
  Roach, R. C., Hackett, P. H., Oelz, O., Bärtsch, P., Luks, A. M., MacInnis, M. J., Baillie, J. K., Macdonald, J. & Oliver, S., Maw 2018, Yn: High Altitude Medicine and Biology. 19, 1
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

2017

• CyhoeddwydDietary nitrate supplementation increases acute mountain sickness severity and sense of effort during hypoxic exercise
  Rossetti, G., Macdonald, J., Wylie, L. J., Little, S., Newton, V., Wood, B., Hawkins, K., Beddoe, R., Davies, H. E. & Oliver, S., Hyd 2017, Yn: Journal of Applied Physiology. 123, 4, t. 983-992
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydMDT dialysis care to improve patient outcomes: Exercise and rehabilitation in dialysis
  Macdonald, J., 28 Medi 2017.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
• CyhoeddwydMEDEX 2015: Heart Rate Variability Predicts Development of Acute Mountain Sickness
  Sunderland, A., Freer, J., Evans, L., Dolci, A., Crotti, M. & Macdonald, J., 1 Medi 2017, Yn: High Altitude Medicine and Biology. 18, 3, t. 199-208
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydMEDEX2015: Greater sea-level fitness is associated with lower sense of effort during Himalayan trekking without worse Acute Mountain Sickness
  Rossetti, G., Macdonald, J., Smith, M., Jackson, A., Callender, N., Newcombe, H. K., Storey, H., Willis, S., van den Beukel, J., Woodward, J., Pollard, J., Wood, B., Newton, V., Virian, J., Haswell, O. & Oliver, S., 1 Meh 2017, Yn: High Altitude Medicine and Biology. 18, 2, t. 152-162
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydRationale and design of BISTRO: a randomized controlled trial to determine whether bioimpedance spectroscopy- guided fluid management maintains residual kidney function in incident haemodialysis patients
  Davies, S., Caskey, F., Coyle, D., Lindley, E., Macdonald, J., Mitra, S., Wilkie, M., Davenport, A., Farrington, K., Dasgupta, I., Ormandy, P., Andronis, L., Solis-Trapala, I. & Sim, J., 26 Ebr 2017, Yn: BMC Nephrology. 18, t. 138 11 t.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydUnexpected reductions in regional cerebral perfusion during prolonged hypoxia
  Lawley, J., Oliver, S., Macdonald, J. & Mullins, P., 1 Ion 2017, Yn: Journal of Physiology. 595, 3, t. 935-947
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

2016

• CyhoeddwydElectromyographic adjustments during continuous and intermittent incremental fatiguing cycling
  Martinez-Valdes, E., Guzman-Venegas, R. A., Silvestre, R. A., Macdonald, J. H., Falia, D., Araneda, O. F. & Haichelis, D., Tach 2016, Yn: Scandinavian Journal of Medicine and Science in Sports. 26, 11, t. 1273-1282
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

2015

• CyhoeddwydBeetroot Juice Does Not Enhance Altitude Running Performance in Well-Trained Athletes
  Arnold, J. T., Oliver, S. J., Lewis-Jones, T. M., Wylie, L. J. & Macdonald, J. H., 4 Chwef 2015, Yn: Applied Physiology, Nutrition, and Metabolism.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydCharacteristics explaining performance in downhill mountain biking
  Macgregor, A., Chidley, J. B., MacGregor, A. L., Martin, C., Arthur, C. A. & Macdonald, J. H., 1 Maw 2015, Yn: International Journal of Sports Physiology and Performance. 10, 2, t. 183-190
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

2014

• CyhoeddwydAnabolic exercise in haemodialysis patients: a randomised controlled pilot study
  Kirkman, D., Mullins, P. G., Junglee, N. A., Kumwenda, M., Jibani, M. M. & Macdonald, J. H., Medi 2014, Yn: Journal of Cachexia, Sarcopenia and Muscle. 5, 3, t. 199-207
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydNormobaric hypoxia and symptoms of acute mountain sickness: Elevated brain volume and intracranial hypertension
  Lawley, J. S., Alperin, N., Bagci, A. M., Lee, S. H., Mullins, P. G., Oliver, S. J. & Macdonald, J. H., 20 Mai 2014, Yn: Annals of Neurology. 75, 6, t. 890-898
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydProlonged (9 h) poikilocapnic hypoxia (12% O2) augments cutaneous thermal hyperaemia in healthy humans
  Lawley, J. S., Oliver, S. J., Mullins, P. G., Macdonald, J. H. & Moore, J. P., 1 Meh 2014, Yn: Experimental Physiology. 99, t. 909-920
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

2013

• CyhoeddwydExercising in a hot environment with muscle damage: effects on acute kidney injury biomarkers and kidney function
  Junglee, N. A., Di Felice, U., Dolci, A., Fortes, M. B., Jibani, M. M., Lemmey, A. B., Walsh, N. P. & Macdonald, J. H., 15 Medi 2013, Yn: American Journal of Physiology: Renal Physiology. 305, 6, t. F813-820
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydHigh altitude impairs in vivo immunity in humans
  Smith, A. D., Oliver, S. J., Macdonald, J. H., Harper Smith, A. D., Lawley, J. S., Gallagher, C. A., Di Felice, U. & Walsh, N. P., 24 Meh 2013, Yn: High Altitude Medicine and Biology. 14, 2, t. 144-149
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydInteraction between Intradialytic exercise and Hemodialysis adequacy
  Macdonald, J. H., Kirkman, D. L., Roberts, L. D., Kelm, M., Wagner, J., Jibani, M. M. & Macdonald J.H., [. V., 29 Tach 2013, Yn: American Journal of Nephrology. 38, 6, t. 475-482
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydInvestigation of whole-brain white matter identifies altered water mobility in the pathogenesis of high-altitude headache
  Lawley, J., Oliver, S. J., Mullins, P. G. & Macdonald, J. H., 1 Awst 2013, Yn: Journal of Cerebral Blood Flow and Metabolism. 33, 8, t. 1286-1294
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydMuscle-Damaging Exercise Increases Heat Strain during Subsequent Exercise Heat Stress
  Fortes, M. B., Di Felice, U., Dolci, A., Junglee, N. A., Crockford, M. J., West, L., Hillier-Smith, R., Macdonald, J. H. & Walsh, N. P., 1 Hyd 2013, Yn: Medicine and Science in Sports and Exercise. 45, 10, t. 1915-1924
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

2012

• CyhoeddwydA matched-cohort study of body composition, physical function and quality of life in men with idiopathic vertebral fracture
  Macdonald, J. H., Evans, S. F., Davies, H. L., Wilson, S., Davie, M. W., Sharp, C. A. & Wilson, S. (Golygydd), 1 Ion 2012, Yn: Arthritis Care and Research. 64, 1, t. 92-100
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydArteriovenous fistula complication following MRI
  Kirkman, D., Junglee, N. A., Mullins, P. G. & Macdonald, J. H., 27 Awst 2012, Yn: British Medical Journal Case Reports.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydCarbohydrate Supplementation and Exercise Performance at High Altitude: A Randomized Controlled Trial
  Oliver, S. J., Golja, P. & Macdonald, J. H., 19 Maw 2012, Yn: High Altitude Medicine and Biology. 13, 1, t. 22-31
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydDoes proteinuria-inducing physical activity increase biomarkers of acute kidney injury?
  Junglee, N. A., Lemmey, A. B., Burton, M., Searell, C., Jones, D., Lawley, J. S., Jibani, M. M. & Macdonald, J. H., 28 Tach 2012, Yn: Kidney and Blood Pressure Research. 36, 1, t. 278-289
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydExertional Fatigue in Patients With CKD
  Macdonald, J. H., Fearn, L., Jibani, M. & Marcora, S. M., 1 Rhag 2012, Yn: American Journal of Kidney Diseases. 60, 6, t. 930-939
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydOptic Nerve Sheath Diameter Is Not Related to High Altitude Headache: A Randomized Controlled Trial
  Lawley, J. S., Oliver, S. J., Mullins, P. G., Morris, D., Junglee, N. A., Jelleyman, C. & Macdonald, J. H., 1 Medi 2012, Yn: High Altitude Medicine and Biology. 13, 3, t. 193-199
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydPhysiological and Psychological Illness Symptoms at High Altitude and Their Relationship With Acute Mountain Sickness: A Prospective Cohort Study
  Hardy, L. J., Arthur, C. A., Roberts, R. J., Oliver, S. J., Sanders, S. J., Williams, C. J., Smith, Z. A., Lloyd-Davies E.*, [. V., Roberts, R., Arthur, C., Hardy, L. & Macdonald, J. H., 1 Gorff 2012, Yn: Journal of Travel Medicine. 19, 4, t. 210-219
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

2011

• CyhoeddwydAthletic Profile of Highly Accomplished Boulderers
  Macdonald, J. H. & Callender, N., 1 Meh 2011, Yn: Wilderness and Environmental Medicine. 22, 2, t. 140-143
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydPhysiological demands of mountain rescue work
  Callender, N., Ellerton, J. & Macdonald, J. H., 29 Medi 2011, Yn: Emergency Medicine Journal.
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

2009

• CyhoeddwydBody composition at high altitude: a randomized placebo-controlled trial of dietary carbohydrate supplementation.
  Macdonald, J. H., Oliver, S. J., Hillyer, K., Sanders, S., Smith, Z., Williams, C., Yates, D., Ginnever, H., Scanlon, E., Roberts, E., Murphy, D., Lawley, J. & Chichester, E., 1 Tach 2009, Yn: American Journal of Clinical Nutrition. 90, 5, t. 1193-1202
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydBody composition changes during high altitude exposure are not reversed by increasing energy intake.
  Macdonald, J. H. & Oliver, S. J., 1 Ion 2009.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
• CyhoeddwydDietary factors associated with acute mountain sickness.
  Sanders, S., Macdonald, J. H. & Oliver, S. J., 1 Ion 2009.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
• CyhoeddwydKidney transplantation: a systematic review of interventional and observational studies of physical activity on intermediate outcomes.
  Macdonald, J. H., Kirkman, D. & Jibani, M., 1 Tach 2009, Yn: Advances in Chronic Kidney Disease. 16, 6, t. 482-500
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydMaintaining euhydration at high altitude.
  Oliver, S. J., Wright, A., Leventi, M. & Macdonald, J. H., 1 Ion 2009.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur

2008

• CyhoeddwydEffect of acute on chronic carbohydrate supplementation during sub-maximal exercise at high altitude.
  Lawley, J., Lloyd-Davies, E., Oliver, S. J. & Macdonald, J. H., 1 Ion 2008.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
• CyhoeddwydEffect of carbohydrate supplementation during a high altitude expedition.
  Macdonald, J. H. & Oliver, S. J., 3 Rhag 2008.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
• CyhoeddwydEffect of chronic carbohydrate supplementation on body composition during a high altitude expedition.
  Macdonald, J. H., Hillyer, K. & Oliver, S. J., 1 Ion 2008.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
• CyhoeddwydEffect of chronic carbohydrate supplementation on exercise performance during a high altitude expedition.
  Roberts, E., Macdonald, J. H. & Oliver, S. J., 1 Ion 2008.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
• CyhoeddwydEffect of chronic carbohydrate supplementation on hydration status and peripheral oedema during a high altitude expedition.
  Ginnever, H., Scanlon, E., Macdonald, J. H. & Oliver, S. J., 1 Ion 2008.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
• CyhoeddwydResponse of electromyographic variables during incremental and fatiguing cycling.
  Macdonald, J. H., Farina, D. & Marcora, S. M., 1 Chwef 2008, Yn: Medicine and Science in Sports and Exercise. 40, 2, t. 335-344
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydThe effects of carbohydrate supplementation on multi-day wilderness expedition performance
  Oliver, S. J. & Macdonald, J. H., 1 Ion 2008.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur

2007

• CyhoeddwydAnabolic therapy in chronic kidney disease.
  Macdonald, J. H., 15 Mai 2007.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
• CyhoeddwydEstimating glomerular filtration rate using measured muscle mass.
  Macdonald, J. H., Marcora, S. M., Jibani, M., Kumwenda, M., Glover, R., Roberts, G., Barron, J. & Lemmey, A. B., 22 Maw 2007.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
• CyhoeddwydMuscle mass deficits are associated with bone mineral density in men with idiopathic vertebral fracture.
  Macdonald, J. H., Evans, S. F., Davie, M. W. & Sharp, C. A., 1 Hyd 2007, Yn: Osteoporosis International. 18, 10, t. 1371-1378
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydNandrolone decanoate as anabolic therapy in chronic kidney disease: A randomized phase II dose-finding study.
  Macdonald, J. H., Marcora, S. M., Jibani, M. M., Kumwenda, M. J., Ahmed, W. & Lemmey, A. B., 1 Gorff 2007, Yn: Nephron Clinical Practice. 106, 3, t. 125-135
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydReliability and sensitivity to fatigue of electromyographic parameters during dynamic cycling exercise.
  Macdonald, J. H., Farina, D. & Marcora, S. M., 12 Medi 2007.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
• CyhoeddwydSteak and Kidney.
  Macdonald, J. H. & Jibani, M., 17 Ion 2007.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
• CyhoeddwydThe functional, metabolic, and anabolic responses to exercise training in renal transplant and hemodialysis patients.
  Van Den Ham, E. C., Kooman, J. P., Schols, A. M., Nieman, F. H., Does, J. D., Akkermans, M. A., Janssen, P. P., Gosker, H. R., Ward, K. A., Macdonald, J. H., Christiaans, M. H., Leunissen, K. M. & Van Hooff, J. P., 27 Ebr 2007, Yn: Transplantation. 83, 8, t. 1059-1068
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

2006

• CyhoeddwydAssessing body composition in chronic kidney disease.
  Macdonald, J. H., 26 Ebr 2006.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
• CyhoeddwydBioelectrical impedance can be used to predict muscle mass and hence improve estimation of glomerular filtration rate in non-diabetic patients with chronic kidney disease.
  Macdonald, J. H., Marcora, S. M., Jibani, M., Roberts, G., Kumwenda, M. J., Glover, R., Barron, J. & Lemmey, A. B., 1 Rhag 2006, Yn: Nephrology, Dialysis, Transplantation. 21, 12, t. 3481-3487
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydCystatin C- not a nutritionally independent marker of kidney function.
  Macdonald, J. H., Marcora, S. M., Jibani, M., Kumwenda, M., Glover, R., Roberts, G., Barron, J. & Lemmey, A. B., 5 Mai 2006.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
• CyhoeddwydGFR Estimation Using Cystatin C Is Not Independent of Body Composition
  Macdonald, J. H., Marcora, S. M., Jibani, M., Roberts, G., Kumwenda, M., Glover, R., Barron, J. & Lemmey, A., 1 Tach 2006, Yn: American Journal of Kidney Diseases. 48, 5, t. 712-719
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydPrediction of kidney function is improved by directly measuring body composition.
  Macdonald, J. H., Marcora, S. M., Jibani, M., Kumwenda, M., Glover, R., Roberts, G., Barron, J. & Lemmey, A. B., 5 Mai 2006.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
• CyhoeddwydThe relationship between estimated glomerular filtration rate, demographic and anthropometric variables is mediated by muscle mass in non-diabetic patients with chronic kidney disease
  Macdonald, J., Marcora, S., Kumwenda, M. J., Jibani, M., Roberts, G., Glover, R., Barron, J. & Lemmey, A. B., 12 Rhag 2006, Yn: Nephrology, Dialysis, Transplantation. 21, 12, t. 3488-3494
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydTowards exercise as part of routine care for chronic kidney disease.
  Macdonald, J. H., 3 Mai 2006.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur

2005

• CyhoeddwydBody composition in men with idiopathic vertebral fracture.
  Macdonald, J. H., Evans, S. F., Davie, M. W. & Sharp, C. A., 10 Rhag 2005.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
• CyhoeddwydCollaboration between Ysbyty Gwynedd, Glan Clwyd and Wrexham Maelor with the School of Sport, Health and Exercise Sciences, University of Wales-Bangor.
  Macdonald, J. H., Jones, D. & Jibani, M., 6 Rhag 2005.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
• CyhoeddwydExercise in your unit.
  Macdonald, J. H., 25 Awst 2005.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
• CyhoeddwydIntradialytic exercise as anabolic therapy in haemodialysis patients-a pilot study
  Macdonald, J., Marcora, S., Jibani, M., Phanish, M. K., Holly, J. & Lemmey, A. B., 1 Maw 2005, Yn: Clinical Physiology and Functional Imaging. 25, 2, t. 113-118
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydMuscle IGF-I levels in hemodialysis patients.
  Lemmey, A. B., Macdonald, J. H., Marcora, S. M. & Jibani, M., 1 Rhag 2005, Yn: Kidney International. 68, 6, t. 2912-2912
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydPhysiology workshop.
  Macdonald, J. H. & Laing, S. J., 17 Medi 2005.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur

2004

• CyhoeddwydChronic kidney disease- the role of the Sports Scientist.
  Macdonald, J. H. & Lemmey, A. B., 4 Meh 2004.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
• CyhoeddwydIntradialytic exercise as anabolic therapy.
  Macdonald, J. H., Marcora, S. M., Jibani, M., Phanish, M., Holly, J. & Lemmey, A. B., 1 Ebr 2004.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
• CyhoeddwydLooking after your kidneys- keep fit!
  Macdonald, J. H., 10 Chwef 2004.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
• CyhoeddwydMuscle insulin-like growth factor (IGF) status, body composition and functional capacity in haemodialysis patients.
  Macdonald, J. H., Phanish, M. K., Marcora, S. M., Jibani, M., Bloodworth, L. L., Holly, J. M. & Lemmey, A. B., 1 Ion 2004, Yn: Journal of Renal Nutrition. 14, 4, t. 248-252
  Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
• CyhoeddwydMuscle mass in dialysis patients.
  Macdonald, J. H., 2 Hyd 2004.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
• CyhoeddwydSkeletal muscle insulin-like growth factor status in haemodialysis patients.
  Macdonald, J. H., Phanish, M., Marcora, S. M., Jibani, M., Holly, J. & Lemmey, A. B., 2 Ebr 2004.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur

2003

• CyhoeddwydBody composition, functional capacity and skeletal muscle insulin-like growth factor (IGF) status in haemodialysis patients.
  Macdonald, J. H., Phanish, M., Marcora, S. M., Holly, J., Bloodworth, L., Jibani, M. & Lemmey, A. B., 10 Rhag 2003.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
• CyhoeddwydThe effects of intradialytic exercise on body composition, functional capacity and muscle insulin-like growth factor (IGF) status in haemodialysis patients.
  Macdonald, J. H., Marcora, S. M., Holly, J., Bloodworth, L., Jibani, M. & Lemmey, A. B., 10 Rhag 2003.
  Allbwn ymchwil: Cyfraniad at gynhadledd › Papur

2023

• 30th European Congress on Obesity

  17 Mai 2023 – 20 Mai 2023

  Gweithgaredd: Cymryd rhan mewn cynhadledd Academaidd (Cyfranogwr)

• Babi Actif - extension

  01/04/2022 – 30/07/2023 (Wedi gorffen)

• The GATEKEEPER pilot in Bangor

  01/12/2021 – 01/08/2022 (Wedi gorffen)

• Chronic kidney disease: can we target blood vessel health to prevent disease progression and improve renal replacement therapy?

  01/02/2019 – 15/03/2024 (Wedi gorffen)

• KESS II Phd with Outlook Expeditions - BUK2134

  01/11/2017 – 31/03/2024 (Wedi gorffen)

• Bioimpedance spectroscopy to maintain Renal Output (The BISTRO Trial)

  01/06/2016 – 31/07/2023 (Wedi gorffen)

• PEDAL Trial - PrEscription of intraDialytic exercise to improve quAlity of Life

  01/04/2014 – 31/03/2020 (Wedi gorffen)

• Enhancing Dialysis Adequacy: Effects of Intradialytic Exercise

  01/07/2011 – 01/08/2012 (Wedi gorffen)

• The effect of strenuous exercise on markers of acute kidney injury

  01/07/2010 – 31/03/2014 (Wedi gorffen)

• Physiological demands of mountain rescue work

  01/05/2010 – 31/12/2010 (Wedi gorffen)

• Physical functioning in patients with chronic kidney disease/Physical exercise as adjunctive treatment for patient with chronic kidney disease.

  06/04/2009 – 31/10/2013 (Wedi gorffen)

• Effects of progressive resistance training during haemodialysis on muscle quantity and dunction in patients with chronic kidney disease

  01/01/2009 – 20/12/2010 (Wedi gorffen)

• MEDEX Hidden Valley 2008

  01/08/2008 – 07/07/2009 (Wedi gorffen)

• Exertional Fatigue, Oxygen Delivery

  01/04/2008 – 31/10/2013 (Wedi gorffen)

• The Effect of Progressive Resistance

  01/04/2008 – 31/12/2010 (Wedi gorffen)

• Relationship Between Muscle Mass

  01/03/2008 – 28/02/2009 (Wedi gorffen)

When not working, I can be found desperately trying to encourage my nine year old daughter to be as passionate about outdoor pursuits as I am. My main hobbies are climbing, mountaineering and mountain biking.