Related Experiment Videos
Metabolic changes during serial squash matches in older men.
T Lynch1, M T Kinirons, D O'Callaghan
1Department of Cardiology, Beaumont Hospital, Dublin, Ireland.
Canadian Journal of Sport Sciences = Journal Canadien Des Sciences Du Sport
|June 1, 1992
Summary
Competitive squash significantly impacts older men's heart rate and blood markers. These physiological responses, including catecholamines and lactate, are not reduced but may intensify during sequential tournament matches.
Area of Science:
- Sports Medicine
- Exercise Physiology
- Biochemistry
Background:
- Previous research indicated significant cardiovascular and biochemical alterations in older men post-competitive squash.
- The impact of playing multiple matches in close succession on these physiological responses remained unclear.
Purpose of the Study:
- To investigate whether physiological changes during competitive squash are attenuated or exaggerated during tournament matches played in rapid succession.
- To assess the cumulative effects of sequential matches on heart rate and blood biochemistry in veteran players.
Main Methods:
- Ten veteran male squash players (age > 45 years) were monitored during three competitive matches over 36 hours.
- Measurements included heart rate and circulating concentrations of catecholamines, lactate, free fatty acids, and potassium.
Main Results:
- Competitive squash induced significant changes in heart rate and blood concentrations of catecholamines, lactate, free fatty acids, and potassium.
- These physiological changes were of equal magnitude and, in some cases, tended to be exaggerated during the second and third matches compared to the first.
Conclusions:
- Acute changes in cardiac function and metabolism during competitive squash are confirmed in older male players.
- Physiological responses to competitive squash are not down-regulated during sequential tournament matches; they may be accentuated.