Chest Compression Force of Trained and Untrained CPR Rescuers

Abstract

The objective of this study was to measure the force exerted by 83 trained CPR rescuers and 104 untrained adult laypersons (college students and staff). A bathroom scale was used to measure the force exerted by these subjects with their hands on the bathroom scale in the CPR position. The weight range for both groups was the same. Of the trained rescuers, 60% pressed with more than 125 lbs, whereas only 37% of the laypersons pressed with more than 125 lbs. In view of the American Heart Association (AHA) guidelines (2000) to depress the chest 1.5 to 2 inches, which requires 100-125 lbs, it would appear that most laypersons do not exert enough force for effective CPR.

Magical manoeuvre

“…Other studies documented a relationship between rate and depth 1 , 25 – 27 , force and depth 28 , 29 , and weight and force 28 . It is estimated that chest depression of 5 cm requires about 56.7 kg of body weight 28 . Geddes and colleagues found that only 9% of untrained laypersons and about 1% of trained rescuers performed CC with a force that exceeds their body weight.…”

Effectiveness and feasibility of assistant push on improvement of chest compression quality: a crossover study

“…No visual or acoustic feedback was permitted during CC. Each CC method was performed on a load cell (CAS Korea, Seoul, South Korea) to obtain and compare the compression force [15].…”

Temporary Cardiac Pacing

“…This amount of force frequently causes rib fractures in human patients and is extremely tiring for the individuals performing CPR. [33][34][35] Zeh 36 found that the required mechanical energy for fist pacing in people is approximated by allowing the ulnar side of the fist to fall from a height of 20-30 cm above the chest. Zoll 25 …”