• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Physical Fitness and Plasma Non-Enzymatic - Antioxidant Status at Rest and After a Wingate Test.

Extracts from this document...

Introduction

Physical Fitness and Plasma Non-Enzymatic Antioxidant Status at Rest and After a Wingate Test Seven male physical education students underwent the Wingate test, a 30 sec sprint anaerobic exercise, and their plasma non-enzymatic antioxidant status (plasma uric acid, ascorbic acid, �-carotene, alpha-tocopherol) were tested in order to demonstrate the effect of exercise on oxidated stress evaluated by lipid radical levels. Venous blood samples were taken prior to the warm-up and prior to the Wingate test after completing the warm-up. Venous blood samples were also completed five different times following the Wingate test. Samples were taken immediately after cessation of exercise, at 5 min, 10 min, 20 min, and 40 min increments post exercise. An arterialized capillary blood sample was also collected 3 min after the end of exercise for the determination of maximal blood lactate concentration. The results of the study produced a negative relationship between serum lipid levels with plasma alpha-tocopherol and plasma uric acid concentrations at rest. The resting lipid levels were high when the alpha-tocopherol and plasma uric acid levels were low. The low plasma alpha-tocopherol and uric acid level at rest where associated with a high sprint performance which also produced a negative correlation. ...read more.

Middle

C. Two main limitations or weaknesses of this study include the factors of nutritional status and physical fitness status of the subjects. The nutritional intake of the participants were not monitored or standardized in the weeks prior to the study. The only guideline prescribed in regards to food intake of the subjects was to eat a standardized breakfast which contained 55% carbohydrates, 15% proteins, and 30% lipids 2 hours prior to the start of the test. The resting antioxidant levels found in this study were near the lower limits of the normal range and the individual differences in their diets may have had an influence on the plasma antioxidant status. Further more, the criterion for physical fitness status in this study was that subjects were active (approximately 14h/wk of various sport activity for at least 2 years) but they were not involved in regular athletic training (endurance or sprint). The level of physical fitness may have also influenced the antioxidant status and the individual differences for fitness status may have also been a contributing factor to antioxidant status. D. The major finding of this study demonstrates an association with acute changes in non-enzymatic plasma antioxidant status and 30 sec ergocycle sprinting. ...read more.

Conclusion

The researchers suggested, based on the results of this study along with the existing body of knowledge in this area, that athletes intake of antioxidants play an important role in maintaining plasma antioxidant concentrations within the normal range and protecting against acute or chronic exercise induced oxidative stress. E. Overall, I feel that this study was well constructed, conducted and analyzed as well as bringing novelty to the field of nutrition with research in regards to anaerobic exercise and antioxidant status. If I had to perform this study the features that I would change deal with previously stated limitations or weaknesses of this study. The level of training one possesses has an influence on the plasma antioxidant status. To try and control the level of variability between individuals, I would choose subjects of the elite athlete status in an attempt to create homogeneity among the subject's physical fitness level. Another aspect that I would try to control as a researcher in this study would be the nutritional intake of the participants for several weeks preceding the testing. A highly specific diet would include the caloric intake that the individual were to consume for several weeks with instruction to refrain from any nutritional supplement including vitamins or minerals in order to modify the resting plasma antioxidant status. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Acquiring, Developing & Performance Skill section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Acquiring, Developing & Performance Skill essays

  1. Components of Fitness for Netball.

    and sprint into the circle in time to receive a pass to shoot. Creating Space: As I'm fast I can dodge a defender by sprinting away from her into my own space either in or out of the circle, when I create space I draw the defenders into my actions

  2. Self analysis of weaknesses in table tennis - Comparison to elite model 2

    in the background it would mean that I would be able to channel it out and focus on what is more important within the game. * Give a training programme and actually ways you would correct the weakness; The actual way in which I can correct the weakness is by

  1. Aim: to plan, perform, monitor and evaluate a 10-week training program for a specific ...

    Side Lunge 1. Stand upright, with both feet facing forward, double shoulder-width apart. 2. Place your hands on your hips, in order to keep your back straight, slowly exhale, taking your bodyweight across to one side. 3. Avoid leaning forward, or taking the knee of the bent leg over your toes.

  2. Describing and Explaining the Components of Fitness. Fitness and fitness testing

    The test requires little equipment and can be done in less than a minute. Disadvantages of vertical jump test The vertical jump test has some disadvantages about it. The test only measures leg power which individual that have good power in legs like rugby player, football and basketball players may benefit from it.

  1. Why do people take part in physical activity?

    This is described as a 'chronic illness. It can be very dangerous. Bulimia nervosa is a condition in which the person is obsessed with the fear of becoming fat. Bulimics eat vast amounts of food, often in a short space of time, then vomit or use laxatives or other pills to control their weight.

  2. Personal exercise plan

    The stretches should aim to be sport realistic that requires a certain degree of movement that will compare to the range of movements within the upcoming activity. The Warm-up is extremely important, as it will benefit many areas such as the increase of: * Heart Rate * Cardiac output *

  1. Personal Exercise programme

    * Circuit- this is performing a number or callisthenic exercises in succession. The activities around the circuit can be adapted for various sports. The number of participants, their level of fitness, time, equipment and space should all be considered. Improvements can be made in the arms, trunk, legs and cardio vascular fitness.

  2. Personal Exercise Program #2

    For example it is used as a means of evaluating in talent identification and evaluating effectiveness of a programme and is used for monitoring in injury rehab to ensure athletes are at full fitness. How we use Fitness Test: Brianmac states that fitness testing can be used for: * Predicting

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work