The biochemical, physiological and psychological consequences of a “1,000 miles in 1,000 hours” walking challenge
The combined effects of 42 days of chronic sleep disruption and repeated hourly bouts of physical exertion have not been described. This case study reports the physiological and psychological demands placed on one individual who walked 1 mile in each consecutive hour for a period of 1,000 h (42 days...
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| Veröffentlicht in: | European journal of applied physiology 2012-02, Vol.112 (2), p.781-788 |
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| container_title | European journal of applied physiology |
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| creator | Murphy, M. H. Breslin, G. Trinick, T. McClean, C. Moore, W. Duly, E. Davison, G. W. |
| description | The combined effects of 42 days of chronic sleep disruption and repeated hourly bouts of physical exertion have not been described. This case study reports the physiological and psychological demands placed on one individual who walked 1 mile in each consecutive hour for a period of 1,000 h (42 days), covering a total distance of 1,000 miles. The participant walked at a mean speed of 1.75 m/s completing each mile in approximately 15 min. Over the course of the challenge, the individual lost 1.6 kg in body weight. Markers of skeletal muscle damage, increased gradually whilst free testosterone levels decreased over the course of the challenge. Stress hormones increased whilst inflammatory markers (CRP) initially rose but then returned towards baseline over the course of the study. Cognitive motor performance measured via reaction time was maintained throughout the 42 days. The participant also displayed mood states typical of an elite athlete at baseline and throughout the challenge. Participation in this novel ‘1,000 mile 1,000 h’ walking challenge evoked considerable physiological stress in a fit, healthy middle-aged participant but did not markedly alter cognitive performance or mood over the 42-day period. |
| doi_str_mv | 10.1007/s00421-011-2003-3 |
| format | Article |
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H. ; Breslin, G. ; Trinick, T. ; McClean, C. ; Moore, W. ; Duly, E. ; Davison, G. W.</creator><creatorcontrib>Murphy, M. H. ; Breslin, G. ; Trinick, T. ; McClean, C. ; Moore, W. ; Duly, E. ; Davison, G. W.</creatorcontrib><description>The combined effects of 42 days of chronic sleep disruption and repeated hourly bouts of physical exertion have not been described. This case study reports the physiological and psychological demands placed on one individual who walked 1 mile in each consecutive hour for a period of 1,000 h (42 days), covering a total distance of 1,000 miles. The participant walked at a mean speed of 1.75 m/s completing each mile in approximately 15 min. Over the course of the challenge, the individual lost 1.6 kg in body weight. Markers of skeletal muscle damage, increased gradually whilst free testosterone levels decreased over the course of the challenge. Stress hormones increased whilst inflammatory markers (CRP) initially rose but then returned towards baseline over the course of the study. Cognitive motor performance measured via reaction time was maintained throughout the 42 days. The participant also displayed mood states typical of an elite athlete at baseline and throughout the challenge. Participation in this novel ‘1,000 mile 1,000 h’ walking challenge evoked considerable physiological stress in a fit, healthy middle-aged participant but did not markedly alter cognitive performance or mood over the 42-day period.</description><identifier>ISSN: 1439-6319</identifier><identifier>EISSN: 1439-6327</identifier><identifier>DOI: 10.1007/s00421-011-2003-3</identifier><identifier>PMID: 21603997</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer-Verlag</publisher><subject>Biological and medical sciences ; Biomedical and Life Sciences ; Biomedicine ; Case reports ; Case Study ; Cognition ; Emotions ; Fundamental and applied biological sciences. Psychology ; Human Physiology ; Humans ; Male ; Middle Aged ; Occupational Medicine/Industrial Medicine ; Sports Medicine ; Stress, Psychological - physiopathology ; Stress, Psychological - psychology ; Vertebrates: body movement. Posture. Locomotion. Flight. Swimming. Physical exercise. Rest. 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H.</creatorcontrib><creatorcontrib>Breslin, G.</creatorcontrib><creatorcontrib>Trinick, T.</creatorcontrib><creatorcontrib>McClean, C.</creatorcontrib><creatorcontrib>Moore, W.</creatorcontrib><creatorcontrib>Duly, E.</creatorcontrib><creatorcontrib>Davison, G. W.</creatorcontrib><title>The biochemical, physiological and psychological consequences of a “1,000 miles in 1,000 hours” walking challenge</title><title>European journal of applied physiology</title><addtitle>Eur J Appl Physiol</addtitle><addtitle>Eur J Appl Physiol</addtitle><description>The combined effects of 42 days of chronic sleep disruption and repeated hourly bouts of physical exertion have not been described. This case study reports the physiological and psychological demands placed on one individual who walked 1 mile in each consecutive hour for a period of 1,000 h (42 days), covering a total distance of 1,000 miles. The participant walked at a mean speed of 1.75 m/s completing each mile in approximately 15 min. Over the course of the challenge, the individual lost 1.6 kg in body weight. Markers of skeletal muscle damage, increased gradually whilst free testosterone levels decreased over the course of the challenge. Stress hormones increased whilst inflammatory markers (CRP) initially rose but then returned towards baseline over the course of the study. Cognitive motor performance measured via reaction time was maintained throughout the 42 days. The participant also displayed mood states typical of an elite athlete at baseline and throughout the challenge. 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| subjects | Biological and medical sciences Biomedical and Life Sciences Biomedicine Case reports Case Study Cognition Emotions Fundamental and applied biological sciences. Psychology Human Physiology Humans Male Middle Aged Occupational Medicine/Industrial Medicine Sports Medicine Stress, Psychological - physiopathology Stress, Psychological - psychology Vertebrates: body movement. Posture. Locomotion. Flight. Swimming. Physical exercise. Rest. Sports Walking - psychology |
| title | The biochemical, physiological and psychological consequences of a “1,000 miles in 1,000 hours” walking challenge |
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