Physiologic Responses of the Body to 5K Running:
Not only is the 5K a race against time and competitors, it is also a race against the loss of metabolic efficiency. Race pace is usually run faster than the athletes lactate/ ventillatory threshold pace and this causes rapid rises in blood lactate. This rapid rise in blood lactate results in earlier onset of muscular fatigue which is caused by blood acidosis. The most economical strategy, therefore, is to run an evenly paced race, which will allow blood lactate to stay as low as possible until the end of the race when ready to make that final surge. An evenly paced race will give the runner a feeling of freshness in the middle of the race when other runners, that went out faster, are begginning to feel stale and fatigued. This will allow a confident second half and a strong all out finish.
Physiologic Reponses of the Body to 10K Running:
From a physiological standpoint, running at this distance is very similar to 5K running. The accumulation of lactate in the blood, however, is much intense. 10K running is run at a slower pace and hence a lower % of lactate/ ventillatory threshold. This allows runners to insert occassional supra race pace surges as a tactic to break away from the field and increase the likelihood of victory.
Heat and Humidity:
One factor that plays a major role in 10K running is the weather. For example, higher ambient temperatures will cause an increased in blood flow to the skin, to increase cooling. This will detract from the volume of blood sent to skeletal muscle, which will decrease oxygen supply to these working muscles. In high humidity environments, the bodies ability to cool itself is decreased. This is a result of a decreased rate of evaporation which does not allow sweat to evaporate at a high rate. The result is a lowered ability to maintain the usual race pace.
Helpful Hints for 5/ 10K Running:
* Set Goals: set specific realistic and attainable short and long term goals for your running
* Train to Accomplish Goals: plan and accomplish training sessions that will allow for goal achieval
* Be Familiar with Pace: practice recognizing pace, both during easy and hard training. Pace recognition during fatigue is a key to sucessful running.
* Prepare for Possible Conditions: on race day, have shoes/ clothing appropriate for weather conditions, including extreme heat and/ or humidity, cold, rain, snow, and ice.
* Have a Race Plan: be sure to have a race plan with specific goal splits and finish time. When used in conjuction with accurate pace judgement and good training, race plans/ goals often come true.
* Maintain a Good Diet and Good Sleep Patterns: maintain a diet high in complex carbohydrate and low in fat. Get 7-8 hours sleep every night.
* Wear Good Shoes and Appropriate Clothing: wear shoes and clothing that have been worn before and proven not to cause blisters or other irritations. Never wear new shoes for a race.
* Relax and Be Confident: resist stress and tension before the race, it will only be detrimental. Relax and think back to the hard training completed and how prepared you are. Your hard training should boost your confidence.
* Stay Focused and Be Patient: once the race has started, stay focused on your race plan. Be patient and do not be distacted by other runners who have a race plan different from your own, or those who intentionally try to coerce you into something you did not plan to do.