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- From: sgs8r@kelvin.seas.Virginia.EDU (Steve Strickland, sgs8r@virginia.edu)
- Subject: training, pullups
- Message-ID: <1992Nov21.000629.27184@murdoch.acc.Virginia.EDU>
- Sender: Steve Strickland, sgs8r@virginia.edu
- Organization: Dept. of Systems Eng., U.Va.
- References: <1992Nov20.221504.4253@u.washington.edu>
- Date: Sat, 21 Nov 1992 00:06:29 GMT
- Lines: 34
-
- Meant to post this a while back but....
-
- One of my friends is a professor in the area of exercise physiology. Some time
- ago we were discussing training and he had some interesting comments.
- Apparently, studies have shown that the relationship between the maximum number
- of repetitions in a single set and the weight involved, is essentially linear
- in the anaerobic range, and the relationship is independent of the weight. The
- upshot is that increasing the number of pullups you can do is equivalent to
- increasing the amount of weight you can do one pullup with. *And* many studies
- have shown that the most effective way to increase this "1 repetition maximum"
- (1 RM) is to do sets to exhaustion of 3-6 repetitions.
-
- The point: the best way to increase the number of pullups you can do (a
- basically anaerobic feat) is *not* to simply try to do more and more, but
- rather to do sets with enough weight that you max out at 3-6 pullups.
-
- Related point. An increase in strength/power comes less from an increase in
- muscle bulk than from so-called neuromuscular adaption. This includes two
- aspects. First is an improvement in muscle fiber recruitment---the ability of
- the nervous system to excite more fibers synchronously. Note that a fiber
- either contracts or it doesn't. Lifting a heavy object (as opposed to a lighter
- one) thus requires the involvement of more fibers. The second aspect is a
- reduction of inhibitory nerve impulses. In general, muscles are stronger than
- the attached structures (tendons, ligaments), so a maximal contraction could
- damage these structures. Thus the nervous system sends out inhibitory impulses
- to prevent this. Everyone's heard about mothers lifting cars off their children
- (no sexism implied, please!). This results from blocking of these inhibitory
- impulses in an extreme situation. What the stories don't say is that the
- mother was probably a mess afterwards, with torn ligaments, etc. Anyway, it is
- felt that a significant contributor to strength gains is a modest blockage (or
- reduction) of these inhibitory impulses. Thus, one should be able to gain
- significantly in strength/power without excessive weight gain. This in fact
- happens with power lifters who experience significant strength gains over time
- while remaining in the same weight class.
-