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A slider-crank mechanism converts rotational motion from the crank into linear motion of the slider or vice versa. This mechanism consists of three main parts: the crank, the connecting rod, and the slider. The movement of the slider-crank is an example of general plane motion as the fluctuating angle between the crank and the connecting rod. Consider a segment AB where point A is at the end of the slider and point B is on the diametrically opposite end to point A, on a crack. The variance in...
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Correlation between Muscular Activity and Vehicle Motion during Double Lane Change Driving.

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  • 1Department of Industrial Engineering, Ajou University, 206, World Cup-ro, Yeongtong-gu, Suwon-si 16499, Gyeonggi-do, Republic of Korea.

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This study reveals significant correlations between electromyography (EMG) muscle activity and vehicle motion during lane changes. Specific muscles like the biceps brachii and sternocleidomastoid show strong links to vehicle dynamics, varying with speed.

Keywords:
correlationdouble lane changeelectromyographymuscular activityvehicle motion

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Area of Science:

  • Biomechanics
  • Human Factors Engineering
  • Automotive Safety

Background:

  • Understanding the relationship between driver muscle activity and vehicle dynamics is crucial for improving driving safety and vehicle design.
  • Electromyography (EMG) provides objective measures of muscle activation during complex tasks like driving.

Purpose of the Study:

  • To investigate the correlation between electromyography (EMG) activity of 19 muscles and five key vehicle motions during a double lane change maneuver.
  • To analyze how vehicle speed influences the correlation between muscle activity and vehicle dynamics.

Main Methods:

  • Measured EMG activity from 19 muscles and five vehicle motions (steering wheel angle, torque, lateral acceleration, roll angle, yaw velocity).
  • Applied envelope detection to EMG signals and vehicle motion data.
  • Utilized ANOVA to assess the effects of muscle type and vehicle speed on correlations.

Main Results:

  • High positive correlations were found between sternocleidomastoid and biceps brachii activity and vehicle motions.
  • Negative correlations were observed for middle deltoid and triceps brachii long head muscles.
  • Correlation strength varied with vehicle speed; some muscles showed increasing correlation (e.g., upper trapezius, pectoralis major sternal), while others decreased (e.g., masseter, sternocleidomastoid).

Conclusions:

  • Specific muscles, including sternocleidomastoid, deltoid, upper trapezius, pectoralis major sternal, serratus anterior, biceps, and triceps, are key indicators of vehicle motion during real driving.
  • Muscle activity patterns change with vehicle speed, suggesting adaptive responses for maintaining balance and control.
  • Findings can inform the development of advanced driver-assistance systems and ergonomic vehicle interiors.