Hormonal and Glycemic Responses During and After Constant- and Alternating-Intensity Exercise.

ABSTRACT: Background/Objectives: Glucose metabolism and hormonal responses are largely affected by exercise intensity, which exhibits an alternating pattern in many sports activities. The aim of this study was to investigate and compare glycemic and hormonal responses during and after exercise of constant (CON) and alternating (ALT) intensity with the same duration and total work. Methods: Ten healthy male volunteers performed two, 60 min cycling exercise bouts in random order: the ALT bout, where exercise intensity alternated between 46.5 ± 1.9% of VO₂max for 40 s and 120% of VO₂max for 20 s, so the mean intensity was at 105% of the lactate threshold (LT), and the CON exercise bout, where the intensity was constant at 105% of LT (70 ± 4.7% of VO₂max).

SUBMITTER: Spanoudaki S 

PROVIDER: S-EPMC11765682 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature