[Givoni, B., Goldman, R. (1971). Predicting metabolic energy cost. J. Appl. Physiol., 30, 429-433.10.1152/jappl.1971.30.3.4295544128]Search in Google Scholar
[Hart, S. G., Staveland, L. E. (1988). Development of NASA-TLX (Task Load Index): Results of empirical and theoretical research. In: Hancock, A. and Meshkati, N. (eds.). Human mental workload (pp. 139-183). Amsterdam: North-Holland.]Search in Google Scholar
[Jackson, A. S., Blair, S. N., Mahar, M. T., Wier, L. T., Ross, R. M. (1990). Stuteville JE: Prediction of functional aerobic capacity without exercise testing. Med. Sci. Sports Exercise, 22, 863-870.10.1249/00005768-199012000-000212287267]Search in Google Scholar
[Landis, J. R., Koch, G. G. (1977). The Measurement of Observer Agreement for Categorical Data. Biometrics, 33, 159-174.10.2307/2529310]Search in Google Scholar
[Louhevaara, V., Suurnäkki, T. (1992). OWAS: Training Publication II. Finish Institute for Occupational Health, Helsinki. 102 pp.]Search in Google Scholar
[Mantoe, H. I., Kemper, W. M., Saris, M., Washburn, R. A. (1996). Measuring Physical Activity and Energy Expenditure. Human Kinetics Publishers, Champaign, Illinois, USA. 200 pp.]Search in Google Scholar
[Mital, A. and Goviadaraj, M. (1999). Is it possible to have a single measure for all work? Int. J. Industr. Ergon., 6(3), 190-195.]Search in Google Scholar
[Roja, Z., Kalkis, V., Eglite, M., Vain, A., Kalkis, H. (2006). Assessment of skeletal muscles fatigue of road maintenance workers based on heart rate monitoring and myotonometry. J. Occup. Med. Toxicol., 1, 20-28.10.1186/1745-6673-1-20155041316872518]Search in Google Scholar
[Vain, A., Kums, T. (2002). Criteria for Preventing Overtraining of the Musculoskeletal System of Gymnasts. Biol. Sport, 19(4), 329-345.]Search in Google Scholar