Post by John A. Casler on Sept 22, 2007 9:54:33 GMT -8
This post and article was posted by Paul Rogers to the SuperTraining list.
I find the basic information interesting, accurate, and relevant.
Power training, high-velocity training, high-speed power training --
whatever you call it -- interest is increasing, especially for
training older age groups.
(Power training involves explosive contraction, as opposed to slower
movement, in order to maximize capacity to move a given load over
time. Plenty of discussion and definition of 'power' in the archives.)
For example, the Journal of Strength and Conditioning Research has a
review:
Sayers SP. High-speed power training: a novel approach to resistance
training in older men and women. A brief review and pilot study.
J Strength Cond Res. 2007 May;21(2):518-26. Review.
Also, in this study here:
Hazell T, Kenno K, Jakobi J. Functional benefit of power training for
older adults. J Aging Phys Act. 2007 Jul;15(3):349-59.
Hazell et al make this distinction:
"Typically, standard resistance training (RT) has been used to reduce
these losses in function by maintaining or even increasing muscle
strength in older adults. Increasing strength does not necessarily,
however, result in an increase in the ability to perform 'activities
of daily living' (ADL). There is now research suggesting that muscle
power is more closely associated with the performance of ADL than
muscle strength is, so training for muscle power might lead to more
beneficial results in functional performance."
Enhanced weight loss with power training?
This study by Mazzetti et al, although using small numbers, suggests
increased energy expenditure with what they call 'explosive versus
slow contractions' compared to slower contractions at same 60%1RM
load, or even compared to explosive contractions at 80%.
Mazzetti S, Douglass M, Yocum A, Harber M. Effect of Explosive versus
Slow Contractions and Exercise Intensity on Energy Expenditure.
Med Sci Sports Exerc. 2007 Aug;39(8):1291-301.
tinyurl.com/3djbyv
Conclusions: "Squat exercise using explosive contractions and
moderate intensity induced a greater increase in the rate of energy
expenditure than squats using slow contractions or high intensity in
all subjects tested. Thus, by using explosive contractions and
moderate exercise intensity, experienced recreational exercisers can
increase their energy expenditure during and after resistance
exercise, and this could enhance weight-loss adaptations."Paul Rogers
Gympie, Australia
I find the basic information interesting, accurate, and relevant.
Power training, high-velocity training, high-speed power training --
whatever you call it -- interest is increasing, especially for
training older age groups.
(Power training involves explosive contraction, as opposed to slower
movement, in order to maximize capacity to move a given load over
time. Plenty of discussion and definition of 'power' in the archives.)
For example, the Journal of Strength and Conditioning Research has a
review:
Sayers SP. High-speed power training: a novel approach to resistance
training in older men and women. A brief review and pilot study.
J Strength Cond Res. 2007 May;21(2):518-26. Review.
Also, in this study here:
Hazell T, Kenno K, Jakobi J. Functional benefit of power training for
older adults. J Aging Phys Act. 2007 Jul;15(3):349-59.
Hazell et al make this distinction:
"Typically, standard resistance training (RT) has been used to reduce
these losses in function by maintaining or even increasing muscle
strength in older adults. Increasing strength does not necessarily,
however, result in an increase in the ability to perform 'activities
of daily living' (ADL). There is now research suggesting that muscle
power is more closely associated with the performance of ADL than
muscle strength is, so training for muscle power might lead to more
beneficial results in functional performance."
Enhanced weight loss with power training?
This study by Mazzetti et al, although using small numbers, suggests
increased energy expenditure with what they call 'explosive versus
slow contractions' compared to slower contractions at same 60%1RM
load, or even compared to explosive contractions at 80%.
Mazzetti S, Douglass M, Yocum A, Harber M. Effect of Explosive versus
Slow Contractions and Exercise Intensity on Energy Expenditure.
Med Sci Sports Exerc. 2007 Aug;39(8):1291-301.
tinyurl.com/3djbyv
Conclusions: "Squat exercise using explosive contractions and
moderate intensity induced a greater increase in the rate of energy
expenditure than squats using slow contractions or high intensity in
all subjects tested. Thus, by using explosive contractions and
moderate exercise intensity, experienced recreational exercisers can
increase their energy expenditure during and after resistance
exercise, and this could enhance weight-loss adaptations."Paul Rogers
Gympie, Australia