Question

Compare and contrast interval training for LIEE & HIEE.

Answer 1

1. HIEE (High Intensity Interval Training) training depends much on the performing the high output activities that generates high power and capable of initiating the anaerobic energy systems.

· Regarding the bioenergetics, this increases the concentration and activity of key enzymes of glycolytic energetic pathways to help athlete acquire the physiological adaptations to the training programs. This adaptation to the athlete enables him to get more ATP, phosphocreatine and glycogen in muscles that maintains efficient and high-level performance among athletes on following the HIEE training.

· Another important factor for athlete in this regard is that he develops an ability to buffer the lactic acids or H+ ions. This produces an inhibitory effect on phosphofructokinase enzyme (PFK), this enables better yield of ATP by the glycolysis pathway.

2. LIEE (Low Intensity Exercise Endurance), usually the development of this type of training allows to develop the physiological adaptations that are also meant to induce endurance and improve functions or performance. It’s a low intensity and aerobic type of endurance exercise.

· Some other interval training methods like resistance, pace or tempo can also be used to develop LIEE. The traditional methods are also known to develop the endurance among the athletes by continuous training programs that may range in intensity levels for example, 60 to 100 % of maximal rates for heart rate levels.

On the contrast HIEE is not known to interfere with the developments of power outputs whereas, LIEE reduces the athlete’s ability to produce high output or high force.

· This difference can very well be depicted on force-time graphs and on records of electromyographic activation patterns.

· LIEE can also show increase MHC type 1 isoforms (myosin heavy chain) that is related with ATPase by decreasing its activity that in general releases the ATP. This doesn’t allow athlete to produce high power outputs in contrast to HIEE. The generation of force is the important component of HIEE. So, LIEE may decrease the HIEE capacity among the athletes especially when they require high output performances needed continuously for any kind of such competitions.

· Therefore, the coach training the athletes must be aware and conscious to adopt the different methods of endurance which would be required for different sport activities.