Non-Linear Relations Between Selected Anthropological Predictors and Psycho-Physiological Exercise-Responses

In this paper, some very useful non-linear-relation procedures are actualized. The authors have defined the characteristic correlations between a set of anthropological characteristics (14 anthropometric and 14 motor-endurance status variables) and a set of psycho-physiological exercise-responses during the hi-lo and during the step aerobic dance training (heart rate, lactate concentration and rating of the perceived exertion). 60 healthy females served as the sample of subjects (mean age 21′1.4 years). The experiment consisted of two parts. In the first one, the linear correlations between the two sets of the variables were established. In the second part, non-linear (squared) relations, between the variables of the two sets were calculated. Results confirm the statement that the non-linear correlations, in some cases, better determinate the real nature of the relations between the variables, than linear correlation models.