McLeod captures Jamaica’s 1st Olympic title in 110 hurdles.

Jamaica’s Omar Mcleod, center, wins the men’s 110-meter hurdles final ahead of third placed France’s Dimitri Bascou, left, and fourth placed France’s Pascal Martinot-Lagarde during the athletics competitions of the 2016 Summer Olympics at the Olympic stadium in Rio de Janeiro, Brazil.


Elaine Thompson wins Olympic 100m, 200m gold to usurp Shelly-Ann Fraser-Pryce as Jamaican Queen of the Track

Running VS Sprinting

Running and sprinting exercises. While they both use the same muscle groups, the difference lies in stride length and frequency.

Running is a form of cardiovascular exercise that is performed for at least 10 minutes to be considered aerobic, using oxygen to primarily fuel your muscle cells. Though there is no determined speed that classifies a run, you typically run at a speed that causes you to breathe heavier and break a sweat. During competition, popular running races include the 5k, 10k, half marathon and full marathon.


When he sprints, a runner maintains his full speed for the entire run. In competition, sprint races include the 100, 200, and 400 meter dash and are typically run in less than 60 seconds. When you begin to sprint you cross into an anaerobic zone and use glycogen rather than oxygen to fuel your muscle cells. The buildup of glycogen produces lactic acid which makes you quickly feel fatigue and, in some cases, a burning sensation in your muscles. This is why a sprint cannot be held for long distances or durations.

Re- Evaluation VO2MAX

Recently the legitimacy of VO2MAX as a practical measurement of cardio respiratory endurance have been called into question. ” The maximal oxygen uptake (VO2MAX) has been suggested to be the single most important physiological capacity in determining endurance running performance.” both as a physiological parameters for measuring performance capacity or as a variable for distance runner training.

Why? It is not closely tied with performance and fatigue.

The question for scientists and coaches is. Why place so much emphasis on a training method for endurance that does not change in well trained athletes, barely change in the moderately trained or does not correlate well with performance.