Originally published August 6 2005
Interval training more effective than endurance training
by Mike Adams, the Health Ranger, NaturalNews Editor
A new study has shown that people that do interval training instead of endurance training actually increase their endurance by 50 percent, causing their body to use oxygen more efficiently.
A new study suggests that doing intense interval training for 20 minutes three times a week is just as effective at boosting strength and endurance as five to six hours of jogging or moderate cycling.
It's a technique that's been used for years by sports teams and athletes.
But is it useful to an average overweight person?
And it requires so much suffering that you're almost destined to quit, one expert said.
The study, published this month in the Journal of Applied Physiology, was done by researchers at McMaster University in Hamilton, Ontario.
It looked at 16 college students who exercised regularly, but are not competitive athletes, said Martin Gibala, associate professor of kinesiology.
Half of the volunteers did two-week sprint interval training, cycling in 30-second bursts going "all out" in four to seven sessions.
Each burst of cycling was followed by four minutes of rest.
The workout was done three times a week for two weeks.
The other half of the test group did no specific training, but continued their normal activities, including basketball, jogging or aerobics, depending on the individual.
Endurance capacity in the sprint group nearly doubled from an average of 26 minutes to 51 minutes.
They also showed a significant increase in the enzyme citrate synthase in their leg muscles, indicating an increased ability to use oxygen, Gibala said.
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