Prevention of Diseases of the Musculoskeletal System
Conditions
Keywords
industrial exoskeleton, exoskeleton, passive industrial exoskeleton
Brief summary
This research will provide data on evaluation of the effectiveness and safety of using a passive exoskeleton designed to reduce the negative impact of static and dynamic loads associated with body tilts, lifting and holding weights on the musculoskeletal system of workers. To evaluate a passive industrial exoskeleton for back support, a protocol was developed in which individual production operations will be modeled.
Detailed description
This research will recruit 12 volunteers. During a 4-hour laboratory visit, each subject will perform two identical experimental tests: one test without an exoskeleton and another one using the exoskeleton. To avoid sequence bias, the test order will be randomized (balanced). The labor operation will be simulated. This operation will consist of lifting the load, which is 20 kg off the floor, walking 1.5m to a surface with a height of 70 cm to put it on, the frequency of lifting is 1 time in 30 seconds. The work will be performed for 105 minutes, then a break of 15 minutes, then 105 minutes of work. Heart rate (Polar) will be monitored. An ergospirometric device (Metamax) will be used to collect muscle activity data (Trust-M, Myoton), inertial sensors (Trust-M) will be used to evaluate the biomechanics of movements. In addition, questionnaires will be filled out for a subjective assessment of the use of exoskeleton prototypes (local discomfort scale, exoskeleton properties assessment questionnaire).
Interventions
DEVICEPassive industrial exoskeleton for back support
The goal is to compare the human response to the simulated industrial tasks
The protocol will be performed without exoskeleton
Sponsors
Federal State Budgetary Scientific Institution Izmerov Research Institute of Occupational Health
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
PREVENTION
Masking
NONE
Intervention model description
Randomized counterbalanced cross-over design
Eligibility
Sex/Gender
MALE
Age
18 Years to 45 Years
Healthy volunteers
Yes
Inclusion criteria
* healthy individuals (based on medical screening)
Exclusion criteria
* musculoskeletal system diseases * musculoskeletal injuries * health deviations at the time of the study
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Local Comfort Rating Scale | 1 hours | This questionnaire is for assessing the duration of maintaining a working posture without discomfort, fixing their appearance, as well as the nature of these sensations. Points can vary from 1 to 10, where 1 is the absence of pain, 10 is unbearable pain. |
| Heart rate | 4 hours | A Polar H10 heart rate monitor (Polar Electro, Finland) will carry all items during the entire research |
| Blood pressure (Systolic and diastolic) | 4 hours | A Custo med blood pressure monitor will be used by all subjects throughout the study |
| Range of motion in large joints of the upper, lower limbs and spine | 1 hour | Inertial sensors will be mounted on the body of the volunteer. The amplitude of the moving in the shoulder, elbow, hip, knee joints and in the thoracolumbar spine is determined. Flexion and extension, abduction and adduction, rotation are performed. |
| Metabolic cost of ergospirometric testing | 4 hours | A Metamax 3B instrument (Cortex, Germany) will be used to measure a metabolic cost during all labor activities, 4 hours. |
| Surface electromyography | 1.5 hours | Trust-M sensors with electrodes will be used to collect electromyographic data in accordance with the SENIAM recommendations. The muscles that will be monitored, the muscles of the arms, legs and back, which account for the maximum load. The locations of the sensors will be prepared by shaving, abrasion with sandpaper, and alcohol cleaning. The average amplitude of the EMG spectrum will be collected. The recording will be carried out at rest, standing before and after work, as well as outside work in the voltage position without exoskeleton and with it. |
| Myotonometry | 1.5 hours | Myotonometry will be performed with a Myoton Pro device. Parameters of the certain muscles, which get the maximum load, will be measured at rest standing before and after work, as well as outside work in a stress position without an exoskeleton and with it. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Exoskeleton parameter evaluation form | 30 minutes | Questionnaire on partial and general parameters of the exoskeleton and user experience |
Countries
Russia
Outcome results
None listed