Abstract
The ability to measure the blood lactate level in a non-invasive, non-contact manner is very appealing to the sports industry as well as the home care field. That is mainly because this substance level is an imperative parameter in the course of devolving a personal workout programs. Moreover, the blood lactate level is also a pivotal means in estimation of muscles' performance capability. In this manuscript we propose an optical non-contact approach to estimate the concentration level of this parameter. Firstly, we introduce the connection between the physiological muscle tremor and the lactate blood levels. Secondly, we suggest a photonic optical method to estimate the physiological tremor. Lastly, we present the results of tests conducted to establish proof of concept to this connection.
Highlights
During highly intense workout, the body energy production pathway shifts from an aerobic pathway to anaerobic pathway during times of low oxygen levels
The ability to measure the blood lactate level in a noninvasive, non-contact manner is very appealing to the sports industry as well as the home care field
We introduce the connection between the physiological muscle tremor and the lactate blood levels
Summary
The body energy production pathway shifts from an aerobic pathway to anaerobic pathway during times of low oxygen levels In the latter lactic acid is produced. By the shown optical system it was possible to measure the microscopic skin movement which changes depending on the muscle tremor during static load on the muscle This concept was already proven to be suitable to estimate heart beating, breathing [5], blood pulse pressure [6], intra ocular pressure [7] as well as concentration of various chemicals in the blood stream such as glucose [8] and alcohol [9] in a non-contact way.
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