Re: Strength flushing??

[Guest guest]

>

> Some science that is not directly related, but I would

> imagine that these are aplicable to the situation.

>

> Journal Of Applied Physiology:

> Rapid increase in plasma growth hormone after

> low-intensity resistance exercise with vascular

> occlusion

>

> http://jap.physiology.org/cgi/content/full/88/1/61

> Effect of High and Low Intensity Exercise on

> Circulating Growth Hormone in Men

>

> http://jcem.endojournals.org/cgi/reprint/75/1/157.pdf

***The following study concludes:

" GH release did not increase significantly from preexercise baseline

during low intensity exercise. "

" " The lo-min period of high-intensity (above the lactate threshold)

exercise consistently resulted in bursts of GH secretion in adult

males. In contrast, low intensity exercise, including the lo-min

protocols, did not elicit significant GH responses...

Ten minutes of constant work rate, high intensity exercise is a

minimum stimulus for consistent GH release in adult males. " "

---

According to Duncan MacDougall (2001) " significant increases in free

and total testosterone are " artificial " during weight training

activities. No change will occur in levels of luteinizing hormone

(LH). Testosterone and growth hormone are transported in the blood

bound to plasma proteins. During resistance training the

intramuscular pressure gets so high that the plasma is squeezed out

of the blood space but testosterone and GH bound to these proteins

can't escape out of the blood space. It is a short lived phenomena. "

It is, therefore, not surprising that resistance training with vascular

occlusion shows significant increases in T and GH as the intramuscular pressure

would be significantly higher. Bear in mind though we are veering off track

into mechanisms of muscular growth rather than enhancing one's recovery through

low intensity exercise. Additionally, something I forgot to mention in my

previous post regarding the benefits of low intensity exercise was that both

Francis and Kraaijenhof were referring to the benefits of low intensity exercise

for the sprinter and not competitive field based sports. big oops!

Carruthers

Wakefield, UK

[Guest guest]

>

> Hi All,

> I recently heard of the term " strength flushing " used to describe

the

> practice of low intensity (~30% 1RM) resistance exercise as a

recovery

> mode ~24hrs after competitive field sports (this technique is

probably

> not specific for team sports but team sports were the topic of

> conversation at the time). I have been unable to find any documented

> details of a reationale or specific details (sets, reps, etc..) for

this

> technique. Has anyone on the list come across this idea? The term

> " metabolic conditioning " (a very inadequate term) was also used.

> Any suggestions welcome.

***I came across the following abstract the other day:

Light concentric exercise has a temporarily analgesic effect on

delayed-onset muscle soreness, but no effect on recovery from

eccentric exercise.

Appl Physiol Nutr Metab. 2006 Apr;31(2):126-134.

Zainuddin Z, Sacco P, Newton M, Nosaka K.

This study investigated the hypothesis that a bout of light

concentric exercise (LCE) would alleviate delayed-onset muscle

soreness (DOMS) and enhance recovery from muscle damage. Fourteen

subjects performed two bouts of 60 maximal eccentric actions of the

elbow flexors (Max-ECC) separated by 2 & ndash;4 weeks. One arm

performed LCE (600 elbow flexion and extension actions with minimal

force generation) 1, 2, 3, and 4 d after Max-ECC; the contralateral

(control) arm performed only Max-ECC. Changes in maximal isometric

and isokinetic strength, range of motion (ROM), upper arm

circumference, and muscle soreness and tenderness were assessed

before and immediately after LCE bouts. Changes in these measures and

plasma creatine kinase (CK) activity for 7 d after Max-ECC were

compared between the control and LCE arms using 2-way repeated

measures analysis of variance (ANOVA).

Significant (p & lt; 0.05) decreases in muscle soreness (~40%) and

tenderness (~40%) were evident immediately after LCE, which also

resulted in small but significant decreases in strength (~15%) and

increases in ROM (~5 degrees ). No significant differences in the

changes in the measures following Max-ECC were observed between the

arms. These results suggest that LCE has a temporary analgesic effect

on DOMS, but no effect on recovery from muscle damage.

--------------

Carruthers

Wakefield, UK

[Guest guest]

>

> >

> > Hi All,

> > I recently heard of the term " strength flushing " used to describe

> the

> > practice of low intensity (~30% 1RM) resistance exercise as a

> recovery

> > mode ~24hrs after competitive field sports (this technique is

> probably

> > not specific for team sports but team sports were the topic of

> > conversation at the time). I have been unable to find any

documented

> > details of a reationale or specific details (sets, reps, etc..)

for

> this

> > technique. Has anyone on the list come across this idea? The term

> > " metabolic conditioning " (a very inadequate term) was also used.

> > Any suggestions welcome.

****I´m from Argentina, my mother language is spanish so I can not

help you with this term " flushing " because I always have problem with

this kind of words that I can not check in the dictionary. But there

is a very common practice of doing a very light session of training

the day after a competition, as a regenerative one. Mainly, this is

for team sports like soccer, basquet, tennis, etc. This session

usually involve regenerative and flexibility exercises, to allow the

muscles to eliminate the lactic acid, in fact, the remove of lactic

acid is much more effective during a light work than when the muscles

are " passives " (Wilmore and Costill): Physiology of sports and

exercise (1994).

Moreover, in Argentina, is very common in soccer or volleyball

teams to see the players doing a very light regenerative work

inmediatelly after a competition, mainly if they have to compete

again very soon, with just two or three days of rest.

Sebastian Scoles

Buenos Aires, Argentina