LEWIS: Measuring The Intensity Of Training Flashcards Preview

A2 PE > LEWIS: Measuring The Intensity Of Training > Flashcards

Flashcards in LEWIS: Measuring The Intensity Of Training Deck (21):
0

2 methods:

Lactate sampling
Respiratory exchange ratio (RER)

1

Lactate sampling involves

Taking a minute sample of the performer's blood

2

LS: the higher the reading of lactate in the blood, the higher the

Intensity of the workout being taken

3

LS: through experience and knowledge a coach will know how hard a performer is

Working

4

Lactate threshold is linked to VO2 Max - specifically the higher the percentage of VO2 max or the higher the pace at which the lactate threshold occurs the

Fitter the athlete

5

Lactate sampling can also be used to

Monitor training and predict performance as well as measuring potential

6

LS: allows the performer to personalise training zones in order to get the

Desired training effect

7

LS: regular lactate testing provides a comparison from which the coach and performer can see whether

Improvement has occurred

8

Lactate threshold is usually taken to be a

2mmol increase in lactate above resting levels.

9

Lactate threshold is sometimes referred to as OBLA, but OBLA is taken to be a level of

4mmol of lactate per litre of blood

10

LS not easily used for games players. The test requires the performer to be relatively stationary. LS tends to be used on those who work on rowing machines or stationary bicycles. these are known as

ergometers (machines designed to measure workload)

11

RER is the ratio of

Carbon dioxide released to oxygen used by the body

12

RER can be used to estimate the relative contributions of

Fat and carbohydrate to the provision of energy for ATP resynthesis

13

RER works as an indicator of fat and carbohydrate breakdown because fat and carbs differ in terms of

Amount of oxygen used and carbon dioxide produced during oxidation

14

RER fat = major fuel, the amount of oxygen being consumed will tend to be a big number which will make the volume of oxygen consumed (VCO2/VO2) and hence RER a

Small number

15

The measurement of VCO2/VO2 is completed using a

Cycle ergometer or treadmill with the athlete attached to a gas analyser so that the volumes of carbon dioxide being produced and oxygen being consumed are measured directly

16

RER ratios:
0.7 =

0.85=

1.0=

Predominant fuel source is fat

Metabolism is equally divided between fats and carbohydrates

Predominant fuel source is carbohydrate

17

By knowing the RER at which the performer is exercising, coaches can see whether they are working

Aerobically or anaerobically

18

It is only when the RER reaches 1.00 that the coach can be sure that the energy is being provide solely by

Anaerobic means

19

RER becomes another means of measuring

Intensity

20

(RER) because of the need for the athlete to be linked to expensive laboratory equipment, using RER as a means of measuring intensity is limited to those who are able to train while using ergometers, e.g.:

Rowers
Cyclists
Runners