The parts of the body work together to form a series of movements. Understanding how the body moves and the sequence of movements is essential for effective health training.
The concept of motion chains dates back to 1875, when a mechanical engineer named Franz Reuleaux thought that when a series of overlapping segments were connected through joints, a system that allowed the movement of one joint, which can affect the movement of another in the intermittent movement. Dr. Arthur Steindler applied this theory in 1955, including the analysis of human movement. Parts such as the arms and legs are considered rigidly overlapping segments, Steindler argues. From there, he defined the kinetic sequence as “the combination of several continuously arranged joints forming a complex motion unit”. Movements that occur in segments show up in two basic forms: opening and closing.
Chain of open motion
The open-motion chain is defined as a combination of fully arranged couplings, in which the final segment can move freely. In an open sequence of motion, the farthest positions of the extremities or the end of the chain farthest from the body can move freely and not fixed to anything. Here are some examples of open motion sequence exercises:
- Sitting posture stretching legs;
- Weightlifting exercises for the back thighs;
- Exercises to push chest muscles;
- Weightlifting exercises for front arm muscles;
- Exercises for muscle groups.
Closed chain of motion
Sequence exercises act as a condition or environment in which the distal part of the extremities is fixed externally and restrains movement. In a closed motion, the final part of the limbs is fixed, increasing joint pressure and then increasing joint stability. The following are closed-motion exercises that are considered more practical than open-motion series exercises.
- Weightlifting exercises and standing, sitting up and down;
- Wall slide exercises;
- Exercises to build glutes;
- Elliptical Exercises – Running on the treadmill;
- Stair stepper exercises – step up and down stairs;
- Exercises on the Versa Climber machine;
- Do chest and arm muscles breathing exercises.
Understanding how the body and all its segments work together is essential in developing effective training programs. Furthermore, knowing the difference between the open and close sequence of movements can help you choose the right exercise based on the individual needs of each person.
The articles of Hello Health Group and Health CPN are for reference only, and are not a substitute for medical diagnosis or treatment.
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