Haemodynamic responses following intermittent supramaximal exercise in athletes

Nocturnal heart rate variability following supramaximal intermittent exercise.

PURPOSE To assess the effect of supramaximal intermittent exercise on long-term cardiac autonomic activity, inferred from heart rate variability (HRV). METHODS Eleven healthy males performed a series of two consecutive intermittent 15-s runs at 95% VIFT (i.e., speed reached at the end of the 30-15 Intermittent Fitness Test) interspersed with 15 s of active recovery at 45% VIFT until exhaustio...

Supramaximal exercise mobilizes hematopoietic progenitors and reticulocytes in athletes.

Marathon runners show increased circulating CD34+ cell counts and postexercise release of interleukin-6 (IL-6), granulocyte-colony stimulating factor (G-CSF) and flt3-ligand (Bonsignore MR, Morici G, Santoro A, Pegano M, Cascio L, Bonnano A, Abate P, Mirabella F, Profita M, Insalaco G, Gioia M, Vignola AM, Majolino I, Testa U, and Hogg JC. J Appl Physiol 93: 1691-1697, 2002). In the present stu...

Energy utilization in intermittent exercise of supramaximal intensity.

MARCARIA, K., R. II. OLIVA, P. E. DI PRAMPERO, AND Pm CERRETELLI. Energy utili<ation in intermittent exercise of supamaximal intensity. J. Appl. Physiol. 26(6) : 752-756. 1969.~In supramaximal exercise the extra energy which is not met by oxidation is drawn from splitting of high-energy phosphate, and only when this source is exhausted is energy drawn from the other anaerobic source, the splitt...

Metabolic responses to supramaximal exercise and training:

The influence of dietary carbohydrate and pre-exercise glucose consumption on supramaximal intermittent exercise performance.

The present study examined whether a pre-exercise consumption of glucose by subjects having adhered to a 3-day low carbohydrate (CHO) or normal CHO diet would influence supramaximal intermittent exercise performance. Sixteen moderately active men volunteers (mean(s.d.) age 20.0(1.3) years) agreed to undertake three exercise tests over an 8-day period; in addition to completing a VO2max test, th...