caa a22 4500 469054565 CHVBK 20180323132839.0 cr unu---uuuuu 170328e19920701xx s 000 0 eng 10.1007/BF00868134 doi (NATIONALLICENCE)springer-10.1007/BF00868134 Adaptations to training at the individual anaerobic threshold [Elektronische Daten] [Stephen Keith, Ira Jacobs, Tom McLellan] Summary: The individual anaerobic threshold (Than) is the highest metabolic rate at which blood lactate concentrations can be maintained at a steady-state during prolonged exercise. The purpose of this study was to test the hypothesis that training at the Than would cause a greater change in indicators of training adaptation than would training "around” the Than. Three groups of subjects were evaluated before, and again after 4 and 8 weeks of training: a control group, a group which trained continuously for 30 min at the Than intensity (SS), and a group (NSS) which divided the 30 min of training into 7.5-min blocks at intensities which alternated between being below the Than [Than−30% of the difference between Than and maximal oxygen consumption ( $$\dot VO_{2 max} $$ )] and above the Than (Than + 30% of the difference between Than and $$\dot VO_{2 max} $$ ). The $$\dot VO_{2 max} $$ increased significantly from 4.06 to 4.271 · min−1 in SS and from 3.89 to 4.061-min−1 in NSS. The power output (W) at Than increased from 70.5 to 79.8% $$\dot VO_{2 max} $$ in SS and from 71.1 to 80.7% $$\dot VO_{2 max} $$ in NSS. The magnitude of change in $$\dot VO_{2 max} $$ ,W at Than, % $$\dot VO_{2 max} $$ at Than and in exercise time to exhaustion at the pretraining Than was similar in both trained groups. Vastus lateralis citrate synthase and 3-hydroxyacyl-CoA-dehydrogenase activities increased to the same extent in both trained groups. While all of these training-induced adaptations were statistically significant (P<0.05), there were no significant changes in any of these variables for the control subjects. These results suggest that the relative stimulus for physiological adaptation to training was similar in SS and NSS. These results also demonstrate that, when training intensity is set relative to the Than, it is the mean intensity during training that determines the extent of adaptation regardless of whether the exercise is performed intermittently or continuously. Springer-Verlag, 1992 Blood lactate nationallicence Aerobic nationallicence Exercise nationallicence Keith Stephen Graduate Program in Exercise and Sports Sciences, York University, North York, Ontario, Canada aut Jacobs Ira Environmental Physiology Section, Defence and Civil Institute of Environmental Medicine, P.O. Box 2000, M3M 3B9, North York, Ontario, Canada aut McLellan Tom Environmental Physiology Section, Defence and Civil Institute of Environmental Medicine, P.O. Box 2000, M3M 3B9, North York, Ontario, Canada aut European Journal of Applied Physiology and Occupational Physiology Springer-Verlag 65/4(1992-07-01), 316-323 0301-5548 65:4<316 1992 65 421 https://doi.org/10.1007/BF00868134 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00868134 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Keith Stephen Graduate Program in Exercise and Sports Sciences, York University, North York, Ontario, Canada aut NATIONALLICENCE 700 1- Jacobs Ira Environmental Physiology Section, Defence and Civil Institute of Environmental Medicine, P.O. Box 2000, M3M 3B9, North York, Ontario, Canada aut NATIONALLICENCE 700 1- McLellan Tom Environmental Physiology Section, Defence and Civil Institute of Environmental Medicine, P.O. Box 2000, M3M 3B9, North York, Ontario, Canada aut NATIONALLICENCE 773 0- European Journal of Applied Physiology and Occupational Physiology Springer-Verlag 65/4(1992-07-01), 316-323 0301-5548 65:4<316 1992 65 421 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer