Question

Functional BioMechanics

1. To understand how basic laws of mechanical physics and engineering impact and shape the structure and function of the human body
2. Mechanics: a branch of physics that documents motion (kinematics) and the causes of motion (kinetics)

To apply this understanding to

3. improve the outcomes of our movements (i.e., performance effectiveness) and
4. increase or maintain our safety and health.

Solve problems to

• Enhance performance
• Reduce injury
• Evaluate the effectiveness of a movement
• Select the proper sport equipment, tool, or occupational equipment

Consider the following scenarios using the below criteria and come up with the best plan design and instructions. Use the facts supplied in the scenarios in your analysis.

Assess:

1. Task

2. Performer Goal

3. Performer Characteristics

4. Environment

5. Bio-mechanical Efficiency

Scenario 1.

Ilisa is 7 months pregnant and has to pick up and move a box of books on the floor about 50 feet across the room, around a large couch and set it on a table. She has about 1 minute before she has to take an important call but wants to get the task done first. Before she was pregnant, she was very physically active, participating in regular Pilates classes and hitting the gym a few times a week. However, she hasn't been doing any of her usual activities since the third month of pregnancy.

Answer 1

During pregnancy, a number of biomechanical and hormonal changes occur that can alter spinal curvature, balance, and gait patterns by affecting key areas of the human body. This can greatly impact quality of life (QOL) by increasing back pain and the risk of falls. These effects are likely to be the ultimate result of a number of hormonal and biomechanical changes that occur during pregnancy.increased levels of relaxin are thought to be responsible for increased ligament laxity and thus changes in the musculature of the body, particularly in the lower trunk ,sitting and standing posture .They influence the balance (both statically and dynamically) ,as well as changes in the kinematics of the limbs during gait ,by virtue of ergonomic changes due to the pregnancy .The kinematics widely discussed in the available literature include the altered hip, knee, and ankle movements in all planes, as well as alterations in the kinematics of the trunk relating to the relationshipAs stomach expands, centre of gravity shifts forward. This makes more likely to be clumsier and lose balance while lifting.

If she carry something with arms relatively outstretched, it puts a greater strain on her back.

It is important to realize her body is changing and she may not be able to do the same activities she were able to do before becoming pregnant, including lifting heavy objects.

human movement performance can be enhanced in many ways as effective movement encompasses anatomical factors, neuromuscular skills, physiological capacities and psychological/cognitive abLaw of Acceleration - Newton’s Second Law precisely explains how much motion a force creates. The acceleration (tendency of an object to change speed or direction) an object experiences is proportional to the size of the force and inversely proportional to the object’s mass (F = ma).

Hormone changes that happen in pregnancy loosen the tough tissues (ligaments) in your joints and pelvic floor. This makes them more vulnerable to stress,so better not to life.