The Effects of Ascent and Descent on Heart Rate and Rhythm at High Altitude

Christopher John Boos^1,2,3*, Lee Macconnachie¹, Adrian Mellor^3,4,5, Jo Yarker⁵ and David Richard Woods^3,5,6,7

¹Department of Cardiology, Poole Hospital NHS Foundation trust, Poole, UK

²Department of Postgraduate Medical Education, Bournemouth University, Bournemouth, UK

³Research Institute for Sport, Physical Activity and Leisure, Leeds Beckett University, Leeds, UK

⁴James Cook University Hospital, Middlesbrough, TS4 3BW, UK

⁵Defence Medical Services, Lichfield, UK

⁶Northumbria and Newcastle NHS Trusts, Wansbeck General and Royal Victoria Infirmary, Newcastle, UK

⁷University of Newcastle, Newcastle upon Tyne, UK

^*Corresponding Author: Christopher John Boos, Department of Cardiology, Poole Hospital NHS Foundation Trust, Longfleet Rd. Poole, Dorset, BH15 2JB, UK, Tel: 01202 44 2572, Fax: 01202 44 2754 Email: