When’s your best time to work out?
Circadian RHythm
What is Circadian Rhythm? Here is the official definition:
Our Living Language : The circadian rhythm, present in humans and most other animals, is generated by an internal clock that is synchronized to light-dark cycles and other cues in an organism’s environment. This internal clock accounts for waking up at the same time every day even without an alarm clock. It also causes nocturnal animals to function at night when diurnal creatures are at rest. Circadian rhythms can be disrupted by changes in daily schedule. Biologists have observed that birds exposed to artificial light for a long time sometimes build nests in the fall instead of the spring. While the process underlying circadian rhythm is still being investigated, it is known to be controlled mainly by the release of hormones. In humans, the internal clock is located within the brain’s hypothalamus and pineal gland, which releases melatonin in response to the information it receives from photoreceptors in the retina. Nighttime causes melatonin secretion to rise, while daylight inhibits it. Even when light cues are absent, melatonin is still released in a cyclical manner.
In the afternoon or early evening, your core temperature is warmer. A warm core makes your muscles and joints more supple, which helps you avoid strains and sprains. That makes afternoon or early evening ideal for exercises that tap your muscles, like strength training, stretching, and interval workouts.
Mornings Are for Endurance
On the other hand, if endurance activities are more your speed — long brisk walks or bike rides — morning may be better. Your body’s core is cooler early in the day, which can make endurance activities seem less tiring. And there is less risk of overheating. But a good warm-up will be key, since your muscles are likely to be stiffer in the a.m.
Check out this walking video from Real Age!
April 15th, 2009 at 2:23 pm
Thanks very much for taking your time to create this very useful infos