## 1 Introduction  
Social, medical, or any other care closely related to patient lifting is becoming more and more needed. Based on Eurostat data, the number of specialists in nursing or similar sectors has increased by 16.6% in the 2012 to 2020 timespan. Furthermore, in 2021, based on statistical data, more than 40% of specialists in the healthcare sector are older than 55 years. Musculoskeletal system disorders are often a challenge to the longevity and satisfaction of specialists' careers [1]. Chronical illness often arises from significant or uncomfortable loads that are closely associated with patient handling or lifting. Load distribution in healthcare specialists is often foreseen in the neck, lower back, shoulder, knees, and elbows. The lifting motion is a complex and difficult maneuver, not only to perform but to measure and research too [2]. Existent standards like ISO 11228 [3] or RULA [4] state some recommendations, like different angle evaluation and weight, but they are very limited in their definition. None of these standards state exposure times in different risk zones or how the accumulation of these loads works or impacts our joints in the long term. This shows the limitation of these standards and the probable lack of research evidence allowing us to broaden the standards. Statistical research shows that the neck, shoulder, and elbows are among the top five musculoskeletal segments that sustain injury. The other two are often the lower back or knees, but these segments are explored more in numerous research studies than the motions and loads of the arms and neck. Based on five different and independent research studies varying in sample size and country, neck muscle skeletal disorder probability is around 0.331-0.501, shoulder muscle skeletal disorder probability is around 0.346-0.453, and elbow muscle skeletal disorder probability is around 0.055-0.273 [5; 6; 7; 8; 9]. Healthcare professionals, especially nursing and rehabilitation specialists, are often faced with patient lifting tasks that cannot be planned in advance. These tasks often include helping patients stand up and moving them from the bed back into the bed. Often, this means that the body position is ergonomically incorrect, based on different scenarios, patient body type, and given physical conditions. Since a living person is being lifted, complexity is higher than most of the other industry tasks. Not only can a patient's physical disability be a factor, but their mental condition can be, too, which healthcare specialists must be aware of, as it might impact their lifting technique. Although a \"no-lift\" policy is being established in Europe, many specialists still perform lifting tasks manually, often without using specialized equipment. Their responsibility for the patient's comfort often means that nurses or other healthcare specialists may not consider the long-term effects on their own bodies, as their focus is on meeting the immediate needs of the patient. Analyzing what forces and loads accumulate in the specialist's body during these motions serves as an important aspect of biomechanical analysis [10; 11; 12]. All these factors contribute not only to the complexity of the motion but also to the need to research it and understand it better. Data gathered from researching such motions can inform recommendations for standards, medical diagnoses, risk assessments, and the development of engineering solutions that may reduce or eliminate the load during lifting. It is even stated that musculoskeletal disorders are one of the main reasons for skipping work, frequently visiting the doctor, or being forced to entirely change work positions [13]. But chronic musculoskeletal illness is as important as rapid injuries, which can often be identified from the evaluation of a performed technique or its factors, as the loads handled are way above what is recommended [14].