Volume 2 Issue 2
Validation of a Non-Transmitting Memory Belt for Measuring Heart Rate Variability
Stefan Sammito*, Irina Böckelmann
Measuring physical activity is an established method for assessing physical strain. A correlation between cardiac output per minute and respiratory minute volume and the heart rate is known. Therefore, the latter measurement is also suitable to determine the individual load of physical activity f.e. during work. The Holter ECG system with its wire-lead data transmission has been established as the gold standard for measuring the heart rate.
Deviant Cellular and Physiological Responses to Exercise in Myalgic Encephalomyelitis and Chronic Fatigue Syndrome
Frank N.M. Twisk*, Keith J. Geraghty
Post-exertional “malaise”, a (prolonged) aggravation of symptoms after a minor exertion, is a discriminative symptom of Myalgic Encephalomyelitis (ME) / Chronic Fatigue Syndrome (CFS). Several abnormalities observed in ME/CFS, such as a prolonged fall in oxygen uptake after exercise, and a post-exertional increase in metabolite-detecting (pain) receptors, can plausibly account for “exercise intolerance” reported by ME/CFS patients and the lack of the success of rehabilitation protocols.