they don't, the set it at 15 for all I believe and when there was two different sets of regulation it was fast bowlers that were allowed a larger degree of flexion, I think it was 10 for fast bowlers and 5 for spinners actually.
No the ICC chose to specify a range of elbow extension tolerance levels that it considered acceptable, but which were dependent on ball release speed. In short some blokes told them without proper data everyone is who straightening their arm prior to release so no one will really bowl legally under the law Law 24.3 in 2000
secondly, the 15 degrees limit isn't about what's possible to bowl with, it was set at 15 because anything less is apparently too difficult for the human eye to discern. so it wasn't necessarily about about making all bowling legal it was about making the law practical to enforce.[
In 2004 Rene Ferdinands and Uwe Kersting decided to do the first lab work on this issue as outside testing was highly inaccurate. They took 69 bowlers sixty-nine bowlers,, grouped into fast, med-fast, medium, slow, and finger-spin categories. 40% of these were first class or test cricketers. 8 bowlers in their sample were observed as possibly having a throwing-type or jerky action.
It was found that none of the 69 complied with the 2000 law sated below or could comply with it.
A ball is fairly delivered in respect of the arm if, once the bowler?s arm has reached the level of the shoulder in the delivery swing, the elbow joint is not straightened partially or completely from that point until the ball has left the hand. This definition shall not debar a bowler from flexing or rotating the wrist in the delivery swing.
Further more although 100% of the medium bowlers met the ICC?s constraints, only
86.7% of the fast,
87.5% of the fast/medium,
35.7% of the slow and
60% of the spin bowlers satisfied the 10, 7 and 5% limits respectively.
So ICC had two choices. Either tell most of them to alter their actions or to legalize the bigger portion. The latter is what they exactly did.
Of the 69, 28 had come through the trial by batsman to become first class or Test bowlers, a process that selects not for legitimacy of action but for effectiveness.
The ICC then chose to set a limit according to 1) a one-angle-fits-all i.e. regardless of bowling style, thus, avoiding issues of interpretation as to style of bowling,
2) at a extent of angle that would allow accurate observation floppy long sleeved shirts and all, and
3) at an angle, incidentally, that identified as legal all but one of the 8 ?throwers? in the sample. This was 15 degrees.
First of all bowlers are capable of changing their action. In matches the will always steal a couple of extra degrees because there is no way to do in match conditions testing. modifying their actions to gain the maximum permitted advantage. Like speeding drivers they will see a ?limit? as a target if it increases their performance.
If they they could have set the elbow angle extension limit at 10% it would have required 13.3% of the fast bowlers, 12.5% of the fast/medium and
40% of the spinners in the sample to modify their actions.
So it has nothing with illusions to do.
There was also the case that under the old laws, only 1% of the bowlers in the ICC Champions League were found to be within the 10% extension.
How do you know that? There is no way to test in match conditions. You can be tested then bowls within your 15 degree limit then go get on a field and bowl with a extension of 20 to 25. Umpires can't do anything as you "were" already cleared by the ICC.
Surely this debate is dead by now? I can't believe people still claim that Murali chucks.
You clearly did not read the 2nd part of my previous post. It has nothing to do if Murali chucks or not but the Doosra. Let me explain it like this for you
Muttiah Muralitharan did under go clinical examinations, electrogoniometer angle measurements, and three-dimensional motion analysis of his bowling arm. The tests revealed that Muttiah Muralitharan had a
fixed flexion deformity of his bowling elbow
I repeat Muttiah Muralitharan had a
fixed flexion deformity of his bowling elbow
For those who missed the key word fixed flexion
deformity
de?for?mi?ty [di f?wrm?tee]
(plural de?for?mi?ties)
noun
1. disfigurement: the condition of being disfigured or badly formed
the deformity of the pine trees at such a high altitude in the mountains
2. structural change from normal: a permanent change from normal body structure
3. something with shape far from normal: something that has a shape not normal for its kind or nature
Note
something that has a shape not normal for its kind or nature
Then the University of Western Australia (Department of Human Movement and Exercise Science) tested his doosra. They measured it 14 degrees and modified his action which was subsequently reduced to a mean of 10.2? with a modified action.
Eliott said the following
?Mr. Muralitharan be permitted to continue bowling his doosra at least until a valid data base is collected on the various spin bowling disciplines?, the overwhelming response was that Murali?s doosra contravened the established ICC elbow extension limit of 5? for spinners.
But Murali CAN bowl it effectively thanks to his deformity. SO thanks to his something that is not natural nor common freak of nature whatever you want to call it he could bowl the doosra with a extension of 10.4.
So you want to tell me all the crop of spinners suddenly developed a deformity? Cause within laws without that deformity they will be chucking and be over the limit.
Then Shoaib Akhtar was found to have hyperextension abnormality which prevented him from bowling with a straight arm. So he was a freak of nature as well. Brett Lee wasn't. But like the others bowling the Doosra he continued to bowl and take advantage of it I mean why not they can't prove it in a match.
But let me put it like this
Angle extension limit is not important. They looked at the wrong thing. A Olympic javelin thrower is bowling not throwing according to the ICC laws asthey for got to look at the ANGLE slope. More sideways and MaSlinga action you got a bowler with a elbow angle of 60 degrees but by no more than 15 degrees, say to 48 degrees his action would have the properties of a throw despite him having an elbow extension of 12 degrees from shoulder height to ball release.