Comments on: Mechanics: The Effects of Loading Rate

By: Why it’s Called the “Inverted W” and Not the “M” | Driveline Baseball

Thu, 08 Sep 2011 13:05:12 +0000

[...] enough research to even come to a reasonable conclusion. There are research studies showing that a more extended elbow at foot contact leads to lower humeral torques, but mechanical tweaks like this can cause kinks in the sequencing of body parts in an efficient [...]

By: Arnel Aguinaldo

Arnel Aguinaldo — Mon, 06 Sep 2010 19:22:31 +0000

@Trip Yes you are correct. The statement that sidearm pitchers are “more susceptible to reduced elbow valgus torque” is contradictory and confusing because it is wrong. It was a typo in the original abstract that was later corrected (it is actually “higher” not “reduced”). Here’s a link to updated one:
http://sdchp.com/AJSM_2009.pdf

By: Strasburg, The Inverted W, and Pitching Mechanics | Driveline Baseball

Strasburg, The Inverted W, and Pitching Mechanics | Driveline Baseball — Sat, 04 Sep 2010 07:37:58 +0000

[...] of injury. Well, that’s not entirely true. In a previous post on this blog, I detailed how bone is sensitive to loading rate. Sabick et al. also determined in Humeral Torque of Professional Baseball Pitchers that “pitchers [...]

By: Link: The Effects of Loading Rate « Strike Three Mechanics

Link: The Effects of Loading Rate « Strike Three Mechanics — Wed, 24 Mar 2010 14:28:45 +0000

[...] http://www.drivelinebaseball.com/2010/03/07/mechanics-the-effects-of-loading-rate/ [...]

By: Rick

Rick — Thu, 11 Mar 2010 14:11:22 +0000

The papers that I have read by Aguinaldo have been very poorly written. I am not familiar with the one you’re referencing, but I suspect it follows the trend of his other publications. He did/does have a large grant from MLB, however, so he must, at least, be persuasive enough to convince the powers that be to give him some money.

By: Kyle

Kyle — Mon, 08 Mar 2010 20:31:40 +0000

I haven’t actually read the abstract; that is a bit confusing. The study does make it a lot more clear. This is yet another reason why reading abstracts is not a substitute for actually reading the research paper.

By: Trip Somers

Trip Somers — Mon, 08 Mar 2010 20:30:33 +0000

I would love to read the entire article (Correlation of Throwing Mechanics With Elbow Valgus Load in Adult Baseball Pitchers by Aguinaldo et al.) because the abstract is a mess.

For example, here are two quotes from it that seem to contradict each other:
-”Fourteen pitchers displayed a sidearm delivery and had significantly higher elbow valgus torques than did those with an overhand arm slot position.”
-”Sidearm pitchers appeared to be more susceptible than overhand pitchers to reduced elbow valgus torque.”

What does “susceptible to reduced elbow valgus torque” mean in the context of this study?

By: Monday(ne) « A Cat Named Steve

Monday(ne) « A Cat Named Steve — Mon, 08 Mar 2010 16:10:03 +0000

[...] mechanics make it safer to throw a baseball (an extremely un-natural & violent motion), but this is way over my head. Anybody ever play any of the Commander Keen games? How about the original Duke Nukem? I only just [...]