Os efeitos dos exercícios verdes sobre a variabilidade da frequência cardíaca

Abstract

This study focuses on green exercise and examines the effects of a 5 km running practice in two distinct environments: urban and natural. The aim of the study was to analyze the effects of 5 km running training over a period of four weeks in different environments (urban and natural) on heart rate variability. This is a quantitative, quasi-experimental research. The sample consisted of eight participants divided between the two environments. The variable investigated was heart rate variability, measured using the Polar H10 heart rate monitor and the Elite HRV app. Data analysis was performed using the Kubios Heart Rate Variability software, considering the average of five minutes at rest for the following parameters: R-R interval, root mean square of successive differences (RMSSD), and the frequency bands VLF (very low), LF (low), and HF (high). The data were quantitatively analyzed using descriptive and inferential statistics. The results showed that the natural environment led to greater increases in heart rate variability indices, such as RMSSD and R-R interval, indicating better autonomic recovery compared to the urban environment, with statistically non-significant results (p > 0.05). Exercise performed in natural environments promoted greater parasympathetic activation and cardiac recovery. It is concluded that the location of exercise influences physiological responses, reinforcing the benefits of contact with nature. Thus, natural environments enhance the positive effects of exercise on health.