Ideel rep tid?


Ethan Hunt
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Hej alle!

Lige noget jeg har undret mig over... Hvor lang tid bør man egentligt tage om en gentagelse aka. rep? Jo flere der er, jo hurtigere må de tages? eller er det f.eks 5 sek til hvert rep hver gang, eller hvordan? Og spiller det egentligt en stor rolle hvor lang tid man tager om et rep eller hvad?

Mvh Ethan

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Du behøver ikke fokusere så meget på et specifikt antal sekunder. Om det er 2 sekunder eller 4 sekunder kommer sig ikke så nøje. Sålænge man sænker stangen langsomt og koncentreret, og løfter den kraftfuldt, så er man dækket ind i hypertrofi øjemed. Træner man for styrke er det en anden sag. Her er en hurtig eccentrisk fase glimrende til at maksimere strækrefleks aktiveringen, hvilket betyder at man kan løfte flere kg.

Og så staves det stadigvæk "konsekvens" ;)

Thomas

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Når jeg træner efter hypertrofi, synes jeg at der er visse øvelser, hvor den positive fase i løftet bør udføres i et kontrolleret tempo.

Tag et eksempel som lateral raise med håndvægt - hvor tit ser man ikke at folk bare står uhæmmet og svinger med vægtene for at opnå momentum - uden overhovedet at have nogen form for kontrol. Ligeledes med mavebøjninger synes jeg det er vigtigt at man har tager sig tid til og sikrer sig at det er mavemusklerne der arbejder og ikke andre muskler der tager over.

Omvendt så synes jeg øvelser som f.eks bænkrpress, glute-hamraise egner sig fint til at blive udført eksplosivt.

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Her er en lille artikel, som bl.a. handler om dette emne:

Bench Press Blast Off

It’s a general rule in bodybuilding to do your reps with a two-second concentric (lifting) movement and at least a three or four second eccentric (lowering) movement. Slowing down the eccentric part of the movement can increase the time under tension, decrease the use of momentum and isolate the target muscle better - all of which help to increase muscle size.

When you're training purely for strength, doing negatives too slowly can be counterproductive. Resisting the weight with a slow negative requires more force, so it actually reduces the number of reps you can do. For example, if you can do three reps with 275 lbs. using a five second negative, you can probably get five or six reps with 275 lbs. using a one or two second negative.

In his column at Testosterone.net, bodybuilding writer Doug Santillo explains it like this: "A lot of emphasis in bodybuilding literature has been placed on lowering the weight slowly. For the purposes of hypertrophy, the majority of the time should be spent using slower eccentric speeds. But there're times when lowering the weight fast can be advantageous. In training for maximal strength, the primary goal is to force your nervous system to more efficiently recruit fast twitch fibers. With a faster eccentric speed, you give the nervous system more of a break between each explosion, since the tension is reduced. By doing this, your muscles must contract from a more relaxed position, thereby forcing your nervous system to adapt. For a bodybuilder, since his priority is gaining muscle mass, not maximal strength, a good choice would be to alternate between fast and slow eccentrics during his strength phases."

If you're after size gains, your best bet would be a slow negative, but if you want more strength, use a faster eccentric speed - not an uncontrolled, cheating fast, but a "controlled" fast.

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