Sentences with phrase «times more muscle fibers»

The investigators found that when LIF - treated muscle stem cells were transplanted to skeletal muscle, they formed two to three times more muscle fibers as control cells did.

Not exact matches

Instead, it appears to be related to a much more fundamental metabolic constraint: the length of time required for the animal to reach its theoretical maximum speed, based on the number of «fast twitch» muscle fiber cells in the creature's muscles, as compared to the length of time it takes for those cells to run out of readily available energy.

The best way to perfect your peaks is by giving more attention to eccentrics, which allow for preferential fast - twitch muscle fiber recruitment and prolonged time under tension.

For example, when you do a two second pause in the middle of the rep, you play down the momentum, taking full advantage of the time spent under tension, and recruiting more muscle fibers.

In time, it was discovered that there was more than one type II muscle fiber, and these would be considered subdivisions of type II.

You'll notice that by using a slower, more controlled negative, your stretch reflex will be slightly inhibited and you'll also spend more time under tension, limiting the amount of weight you can ultimately perform for the same number of reps.. The good thing about this method is that it allows the strongest muscle fibers to get trained.

The human body is incredibly efficient — it wants to do the least amount of work possible to perform a given task, so it builds new muscle fibers, creates neural pathways and develops muscle memory to perform the same job more efficiently over time.

More interestingly, Farup et al. (2014) found that the strength of the relationship between rate of force development and type IIX muscle fiber relative area reduced steadily as the time period moved further away from the onset of the contraction (r = 0.61, 0.56, 0.46, 0.26 for 30ms, 50ms, 100ms and 200ms).

Essentially, the longer fibers require more time to go from slack to taut, at the onset of a muscle contraction (Blazevich et al. 2008; 2009).

According to Bennett - Ramseur, yogis regularly activate «slow twitch muscle fibers which improve our endurance but can not generate significant force, while quick explosive movements found in weight training activate more type 2 muscle fibers, which improve our explosiveness, strength, and power, but can not sustain activity for long periods of time.»

Reduced time was working out: Because you will be engaging more muscle fibers with each lift during your workouts on the powertower, you won't need to spend as much time working out.

Things can get a little more complicated, especially under fatigue where motor unit cycling1 comes into play, but that's the basic gist of where this idea comes from: Type 1 muscle fibers are recruited first and take a long time to fatigue, leading you to think they'd grow the most when exposed to lighter weights for high reps. Type 2 muscle fibers are recruited more when the muscles are loaded heavier, at least for the first few reps, leading you to think they'd grow the most when exposed to heavier loads for lower reps. 2

1Some muscle fibers drop out when they fatigue, and other muscle fibers are recruited so force output doesn't drop off, which means total muscle activation over the course of a set may be the same with heavy and light loads, even if activation at any given time point is higher with heavier loads 2 It's a little more complicated than that, if you care to dig deeper.

The reason more mitochondria don't always mean that you run faster (instead of longer) is because (1) you may have far more mitochondria than necessary to process the maximum amount of oxygen your lungs can take in and your red blood cells transport at any given time, (2) regardless of how many mitochondria you have, the motor neurons connected to your aerobic muscle fibers are smaller than those connected to your anaerobic muscle fibers.

Over time, your muscle fiber protein content will also increase, making for a permanently bigger muscle fiber (and one that can hold more glycogen and water inside it).

Longer muscle fibers contract more quickly than shorter muscle fibers because all of the sarcomeres in a single muscle fiber contract at the same time.