The fate of potassium ions released from contractile muscle during repeated supramaximal exercise

• Autorzy: Szczesna-Kaczmarek A.
• Języki publikacji: EN

Abstrakty

EN

The purpose of this paper was to examine the fate of K+ released from contracting muscles during supramaximal exercise repeated three times, which is known to be associated with a large efflux of K+ and lactate into plasma. Material/Methods: Nineteen healthy students of physical education volunteered for the study. All participants performed 30s Wingate Anaerobic Test three times with 7 min rest break. During the exercise test indices of anaerobic capacity were assessed. Parameters characterizing acid base status and potassium ion concentration in plasma, whole blood and erythrocytes were measured before the exercise test, during each break between bouts and 15 min after the end of the exercise. Results: The result showed that plasma and intraerythrocyte ion potassium concentrations were significantly increased after each bout of exercise, but exercise induced plasma hiperkalemia was levelled during the first 5 min of recovery. Simultaneously, ion potassium concentration increased in erythrocytes, but not in urine. Post exercise potassium excretion to urine was lower during 24 hours of recovery than before the exercise. Conclusions: Obtained results suggest that erythrocytes take part in rapid changes of blood potassium level after extreme exercise. We also considered that the rapid decrease in exercise – elevated K+ concentration in plasma due to their transport to erythrocytes as a prevention of the loss of potassium ion by the renal system.

• Wydawca: -
• Czasopismo: Baltic Journal of Health and Physical Activity. The Journal of Gdansk University of Physical Education and Sport
• Rocznik: 2009
• Tom: 01
• Numer: 1
• Opis fizyczny: p.20-26,fig.,ref.

Twórcy

autor

Szczesna-Kaczmarek A.

• Jedrzej Sniadecki Academy of Physical Education and Sport in Gdansk, Gdansk, Poland

Bibliografia

• 1. Overgaard K, Nielsen OB, Flatman JA, Clausen T. Relations between excitability and contractility in rat soleus muscle: role of the Na + -K + pump and Na + /K + gradients. J Physiol1999;518:215-225.
• 2. Clusen T, Gissel H. Role of Na+.K+ pumps in restoring contractility following loss of cell membrane integrity in rat skeletal muscle. Acta Physiol Scand 2005;185:263-271.
• 3. Nielsen OB, Clausen T. The Na+/K- pump protects muscle excitability and contractility during exercise. Exerc Sport Sci Rev 2000;28:159-164.
• 4. Sjogard G. Exercise-induced muscle fatigue. The significance of potassium. Acta Physiol Scand Suppl 1990;593:1-60.
• 5. Lindingen ML, Horn PL, Grudzień SP. Exercise-induced stimulation of Kin human erythrocytes. J Appl Physiol 1999;87:2157–2167.
• 6. McKelvie PS, Lindinger MI, Heigenhauser GJF, Jones NL. Contribution of erythrocytes to the control of the electrolyte changes of exercise. Can J Physiol Pharmacol 1991;69:984–993.
• 7. Buono MJ, Yeager JE. Intraerythrocyte and plasma lactate concentrations during exercise in humans. Eur J Appl Physiol Occup Physiol 1986;55:326-329.
• 8. Vollestad NK, Hallen J, Sejersted OM. Effect of exercise intensity on potassium balance in muscle and blood of man. J Physiol-London 1994;475:359-368.
• 9. McKelvie PS, Lindinger MI, Jones NL, Heigenhauser GJF. Erythrocyte ion regulations across inactive muscle during leg exercise. Can J Physiol Pharmacol 1992;70:1625-1633.
• 10. Hoffman JF, Active transport of Na+ and K+ by red blood cells. In: Fanestill DD, Schulz SG, editors. Physiology of membrane disorders. New York: Plenum; 1986, 221-234.
• 11. Lindinger MI, Grudzien SP. Exercise-induced changes in plasma composition increase erythrocyte Na+,K+-ATPase, but not Na+–K+–2Cl_ cotransporter, activity to stimulate net and unidirectional K+ transport in human. J Physiol 2003;533:987-997. Brought to you by | Uniwersytet Przyrodniczy w Poznaniu Authenticated Download Date | 9/15/15 1:14 PM Anna Szczęsna-Kaczmarek, Potassium Ions Released form Contractile Muscles 26
• 12. Shanmuga Sundaram KR, Padmavathi C, Sujarha Acharyja N, Vidhyalakshmi KR, Vijayan VK. Exercise -induced An+.K+-ATPase activities in human red cell membrane. Exp Physiol 1992;77:933-936.
• 13. Hansen AK, Clausen T, Nielsen OB. Effect of lactic acid and catecholamines on contractility in fast-twitch muscle exposed to hyperkalemia. Am Physiol Cell Physiol 2006;289:C104-C112.
• 14. Medbo J, Sejersted OM, Plasma potassium changes with high intensity exercise. J Physiol 1990;421:105-122.

Identyfikatory

DOI

10.2478/v10131-009-0002-0