Study limitations
The sample size is small, and we selected only male and recreationally-active participants for this study to prevent compromising interference from possible gender differences in cardiopulmonary function, and muscle performance differences. Therefore, the interpretability and generalizability of the results is limited and only apply to a young male-only and healthy population. The main difficulty during our investigation was measuring blood pressure during strength exercises. For safety reasons (requiring a single-arm execution) and because of the repetition sequence’s influence, we were unable to take blood-pressure measurements during our participants’ strength sessions. We thus cannot quantify differences in blood pressure during exercise. Nevertheless, we did take single-arm blood pressure measurements (Riva-Rocci/Korotkoff) in 12 participants at an additional session during which the squats were performed at a slower repetition frequency (62.5% 3-RM). Cardiac parameters obtained via impedance cardiography may be overestimated using absolute values