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THE SEQUENCE MODEL
The sequence model takes the form of a fixed series of letters (called parameters) representing each of the various subactivities of general move activity sequence. The parameters of the general move sequence describe the five-step pattern already indicated.
A B G A B P A

Where: A= action distance
B= body motion
G= gain control
P= placement
Parameter definitionsA- Action distance
This parameter is used to analyze all spatial movement or actions of the fingers, hands and/or feet, either loaded or unloaded. Any control of these actions by the surroundings requires the use of other parameters.

B- BODY MOTION
This parameter is used to analyze either vertical (up and down) motions of the body or the actions necessary to overcome an obstruction orimpairment to body movement.

C- GAIN CONTROL
This parameter is used to analyze all manual motions (mainly, fingers, hand and foot) employed to obtain complete manual control of an object(s) and to subsequently relinquish that control. The G parameter can include one or several short-move motions whose objective is to gain full control of the object(s) before it is to be moved to anotherlocation.

P- PLACEMENT
This parameter is used to analyze actions at the final stage of an object’s displacement to align, orient and/ or engage the object with another object(s) before control of the object is relinquished.

PHASES OF THE GENERAL MOVE SEQUENCE
This displacement of an object through space occurs in three distinct phases, as shown by the following general move sequencebreakdown;
Get | Put | Return |
A B G | A B P | A |

The first phase, referred to as get, describes the actions to reach the object with body motions (if necessary) and gain control of the object. The A parameter indicates the distance the hand or body must travel to reach the object, and the B indicates the need for any body motions during this action. The degree of difficulty encountered ingaining control of object is described by the G parameter.
The put phase of the sequence model describes the action to moved the object, to another location. As before, the A and B parameters indicate the distance the hand or body travels with the object and the need for any body motions during the moved before the object is placed. The manner in which the object is placed is described by the Pparameter.
The third phase simply indicates the distance traveled by the operator to return to the workplace following the placement of the object.
The MOST analyst should strictly adhere to the three-phase breakdown of the General Move Sequence Model. Such adherence consistency in application and ease in communication.

THE CONTROLLED MOVE SEQUENCE

The controlled move sequence describes themanual displacement of an object over a “ controlled” path. That is, movement of the object is restricted in at least on direction by contact with or an attachment to another object, or the nature of the work demands that the object be deliberately moved along a specific or controlled path.

Similar to the general move sequence, controlled move follows a fixed sequence of subactivities identifiedby the following steps:
1.- reach with one or two hands a distance to the object, either directly or in conjunction with body motions or steps.
2.- gain manual control of the object
3.- move the object over a controlled path (within reach or with steps)
4.- allow time for a process to occur
5.- align the object following the controlled move or at the conclusion of the process time.
6.- returnto workplace

These six subactivities form the basis for activity sequence describing the manual displacement of an object over a controlled path.

THE SEQUENCE MODEL
The sequence model takes the form of a series of letters (parameters) representing each of the various subactivities of the controlled move sequence

A B G M X I A

Where: A= action distance
B= body motion
G= gain...
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