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Fatigue Analysis of Recreational Road Cyclist in Terms of Blood Lactate Concentration and Nutritional Intake

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Ergonomics for Design and Innovation (HWWE 2021)

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Abstract

Blood lactate concentration is one of the most often measured parameters during performance testing of athletes. The purpose of the study was to measure the serial change in the rate of blood lactate concentration in response to the sequential period of cycling. Seven male road cyclists volunteered to be subject in the study. Subjects participated in a 200 km cycling event. Their anthropometric measurement, nutritional intake (three consecutive days), and blood lactate concentration was measured. Their mean age was 38.6 ± 8.7 years, body height 170.9 ± 4.6 cm; body weight was 74.1 ± 7.2 kg with 25.4 ± 2.1 (kg/m2) BMI and 24.9 ± 3.2% fat percentage. The subject’s blood sample was measured through finger-stick (capillary) blood sampling by using an automated blood lactate analyzer. Lactate measurement was made four times: at rest, immediately after the event, 5 min, and 20 min of passive recovery. The study has shown that participants resting LA (2.2 ± 0.9 mmol L−1) was fall into normal range whereas with the passive recovery there was a gradual increase in their blood lactate concentration (5.6 ± 2.9 to 9 ± 3.5 mmol L−1) up to 20 min of recovery time. The mean energy intake day before the event and during the event was less than recommended level by ICMR. Hence it can be concluded that less nutritional intake during and before cycling event might be the cause of less energy production and depletion of muscle glucose which might lead to more lactate accumulation in the muscles during the recovery period.

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Kapri, E., Mehta, M., Singh, K. (2022). Fatigue Analysis of Recreational Road Cyclist in Terms of Blood Lactate Concentration and Nutritional Intake. In: Chakrabarti, D., Karmakar, S., Salve, U.R. (eds) Ergonomics for Design and Innovation. HWWE 2021. Lecture Notes in Networks and Systems, vol 391. Springer, Cham. https://doi.org/10.1007/978-3-030-94277-9_106

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  • DOI: https://doi.org/10.1007/978-3-030-94277-9_106

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