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Papers by Arundhati Guha Thakurta

Research paper thumbnail of Immersive Experience- A Boon or Curse for Healthcare Professionals?

Zenodo (CERN European Organization for Nuclear Research), Dec 31, 2022

Research paper thumbnail of Influence of Select Modes of Load Carriage on Movement Biomechanics of Industrial Workers

Advances in Intelligent Systems and Computing, 2018

A study was conducted with an aim to determine the changes of human lower limb biomechanics biome... more A study was conducted with an aim to determine the changes of human lower limb biomechanics biomechanics while carrying loads in selective modes among industrial workers of India and to suggest the biomechanically efficient mode of load carriage. Industrial workers (n = 20) in the age range of 22 to 58 years were selected and asked to carry loads on head, across one shoulder and in hands. Qualisys Motion Capture System (Sweden), Kistler Force Plate (Switzerland) and Polar S810i HR monitor, Finland were used to record data. Heart rate was recorded at rest and during select modes of load carriage with 40% of individual body weight i.e. loads on head, shoulder and hand. Walking speed for head load, shoulder load and hand load were 4.19 ± 0.55 km.hr−1, 4.09 ± 0.82 km.hr−1 and 3.94 ± 0.84 km.hr−1 respectively. Double limb support time while carrying loads has been found lowest in case of head mode (0.65 ± 0.46 s) followed by hand mode (0.67 ± 0.14 s) and shoulder mode (0.68 ± 0.06 s) of load carriage. There is a gradual increase in hip flexon from head to shoulder and hand load condition and gradual decrease in ground reaction force from head to shoulder and hand load conditions. Considering the changes in the physiological parameters along with the biomechanical parameters, head load was found to be more productive in comparison to shoulder and hand load modes. Results demonstrated a significant changes in kinetic and kinematic parameters of workers at selective load conditions. Findings would provide substantial input for designing work and work rest cycle for different industrial manual workforce.

Research paper thumbnail of Characteristics of Gait Variability Among Healthy Indian Construction Workers During Different Load Carrying Modes

Compared to work-related musculoskeletal disorders of the upper extremity and lower back area, mu... more Compared to work-related musculoskeletal disorders of the upper extremity and lower back area, much less investigative focus has been found on the prevention of lower limb musculoskeletal disorders and injury (LLD) in the workplace. A higher incidence of musculoskeletal injuries in lower extremities when carrying a heavy load during daily activities was found among Indian construction workers. The objective of this study was to examine the changes in temporal and distal gait parameters of healthy Indian men and women construction workers with different modes of load carriage. Five healthy male and five female construction workers were selected to walk at self-selected speed along a 7 m walkway, crossing two Kistler force platforms with unloaded and different loaded (15 kg) conditions. Indian males and females displayed significantly different gait patterns under all load conditions while the changes were relatively small in males. The results also indicated that the walking patterns...

Research paper thumbnail of The Influence of Three Different Load Carrying Methods on Gait Parameters of Indian Construction Workers

MOJ Anatomy & Physiology, 2017

Many examinations of various load configurations on healthy men of other professions like militar... more Many examinations of various load configurations on healthy men of other professions like military services have been made, but not much on men engaged in manual labour work in construction industries. Construction workers were found to have higher prevalence of lower extremity problems when carrying heavy load during daily activities at the construction sites. The purpose of this study was to examine the changes in gait patterns of Indian construction workers while carrying a 30 Kg load on their head, on the hand, and across one shoulder. Twenty healthy daily wage male workers without existing clinical orthopaedic problems were selected for this study, ranging in ages from 21to 40years. Thirty six reflective markers were placed on the subjects' lower limb. Six Qualisys Motion Capture Oqus cameras were used to film the subjects, walking along a 75meter walkway. Each worker was asked to walk at his self-selected speed without any load to establish a baseline and then, in random order, walked with a 30 kilograms load on the head, on the hand, and diagonally across one shoulder. The influence of load carrying methods on different gait parameters like speed, stride length, stride width, step time, stance time, swing time, cadence, cycle time, double limb support and etc. were observed. Workers (n=20) walked with significantly different gait parameters when walking with three different load carrying configurations compared with the baseline at p<0.05. Carrying a heavy load on head appeared to cause the least deviation from normal gait pattern among the Indian manual construction workers.

Research paper thumbnail of G1-2 Influence of different modes of load carriage on lower limb biomechanics of industrial workers

The Japanese journal of ergonomics, 2017

Study was conducted with an aim to i) study the lower limb biomechanics of healthy workers, ii) d... more Study was conducted with an aim to i) study the lower limb biomechanics of healthy workers, ii) determine changes of human biomechanics with different modes of load carriage and iii) suggest biomechanically efficient mode of load carriage. Study was conducted on 20 workers in the age range 20 to 55 years. Qualisys Motion Capture System (Sweden), Kistler Force Plate (Switzerland) and Polar S810i HR monitor, Finland were used. Heart rate was recorded at rest and during different modes of load carriage with 40% of body weight i.e. loads on head, shoulder and hand. Movement of lumbar spine while carrying loads was recorded by using Industrial Lumbar Motion Monitor (iLMM), USA. Walking speed for head load, shoulder load and hand load were 4.19±0.55 km.hr-1 , 4.09± 0.82 km.hr-1 and 3.94± 0.84 km.hr-1 respectively. Stride length was longer in case of head mode (1.20±0.45 meter) followed by hand (1.19±0.01 meter) and shoulder mode (1.12±0.04 meter) of load carriage. Average Twisting Velocity of lumbar spine was found lowest in case of head mode of load carriage followed by shoulder and hand mode. Heart Rate cost of carrying loads on head, shoulder and hand were 50±10.54 beats/min, 52.95±10.88 beats/min and 57.45±10.04 beats/min respectively. Energy cost of cost of carrying loads on head, shoulder and hand were 294±61.99 jule/min, 311.346±63.97 jule/min and 337.81±59.03 jule/min respectively. Results demonstrated a significant relationship between kinetic and kinematic parameters of workers at different load conditions. Findings would provide substantial input for designing work and work rest cycle for industrial workforce.

Research paper thumbnail of Human Gait with Reference to Age, Gender and Impact of Load: A Review

Advances in Applied Physiology, 2016

This review paper summarizes the available literature regarding the analysis of human gait of wit... more This review paper summarizes the available literature regarding the analysis of human gait of with reference to age and its effect on the performance. The ability to walk upright on two legs (bipedalism) is the root of what it means to be human and each person displays personal peculiarities in their walking pattern. According to the studies, muscle activity changes with the deviation of gait pattern in different condition and even for different individuals. It has been found that a vivid knowledge about the kinetics and kinematics of human gait improves the understanding of proper mechanisms of walking and has found to be helpful. Studies also suggest that the determinants of gait from decades are never closely being observed which is needed and can be productive. Gait is altered by different factors especially age, gender, working conditions etc. Walking pattern or more precisely the parameters of gait are affected by different load carriage conditions. Aging has a great impact on gait variability. With increase in age gait parameters like step length becomes smaller and step width also becomes wider, even pelvic mobility also decreases which in turn slower the walking speed. A significant difference of gait initiation speed, hip and knee angles has been found between males and females. A few studies have shown a wide range of differences of human walking pattern between different populations. It varies from country to country, even region to region in a particular country due to differences found in the body composition which is again affected by various important factors like climate, food habit, landscapes etc.

Research paper thumbnail of Comparative analysis of gait kinematics of male and female construction workers while carrying asymmetric loads in different modes

2015 International Conference on Industrial Engineering and Operations Management (IEOM), 2015

In order to determine the gender differences in gait pattern during load carriage, 6 male and 6 f... more In order to determine the gender differences in gait pattern during load carriage, 6 male and 6 female construction workers performed load carrying activity for four different load conditions. The loads included a baseline condition in which subject carried no added load. Subjects walked at self-selected speed along the walk way stepping two Kistler Force Plates with load and without load for 15 minutes. Load carried was 20% of subject's body weight. Results demonstrated certain sex specific differences on kinematic pattern in walking. Changes in various walking variables like speed, stride width, stride length, cycle time, double limb support, steps per minute were reported. Walking pattern of both males and females was affected by different modes of load carriage. Males reported maximum exertion during shoulder load whereas females had maximum exertion during hand load. Overall exertion measured by Borg-RPE Scale was found to be more among females as compared with males during the activity. It is important to take careful consideration while giving loads to males and females. Head load is recommended for females and back load for males when carrying 20% of body weight load. In summary, women's gait is characterized by greater changes than men. Characterizing unique gait patterns of women and men during load carriage in construction work may be beneficial for detecting the early stages of walking abnormalities that may lead to pathology with ageing affecting their work life.

Research paper thumbnail of Immersive Experience- A Boon or Curse for Healthcare Professionals?

Zenodo (CERN European Organization for Nuclear Research), Dec 31, 2022

Research paper thumbnail of Influence of Select Modes of Load Carriage on Movement Biomechanics of Industrial Workers

Advances in Intelligent Systems and Computing, 2018

A study was conducted with an aim to determine the changes of human lower limb biomechanics biome... more A study was conducted with an aim to determine the changes of human lower limb biomechanics biomechanics while carrying loads in selective modes among industrial workers of India and to suggest the biomechanically efficient mode of load carriage. Industrial workers (n = 20) in the age range of 22 to 58 years were selected and asked to carry loads on head, across one shoulder and in hands. Qualisys Motion Capture System (Sweden), Kistler Force Plate (Switzerland) and Polar S810i HR monitor, Finland were used to record data. Heart rate was recorded at rest and during select modes of load carriage with 40% of individual body weight i.e. loads on head, shoulder and hand. Walking speed for head load, shoulder load and hand load were 4.19 ± 0.55 km.hr−1, 4.09 ± 0.82 km.hr−1 and 3.94 ± 0.84 km.hr−1 respectively. Double limb support time while carrying loads has been found lowest in case of head mode (0.65 ± 0.46 s) followed by hand mode (0.67 ± 0.14 s) and shoulder mode (0.68 ± 0.06 s) of load carriage. There is a gradual increase in hip flexon from head to shoulder and hand load condition and gradual decrease in ground reaction force from head to shoulder and hand load conditions. Considering the changes in the physiological parameters along with the biomechanical parameters, head load was found to be more productive in comparison to shoulder and hand load modes. Results demonstrated a significant changes in kinetic and kinematic parameters of workers at selective load conditions. Findings would provide substantial input for designing work and work rest cycle for different industrial manual workforce.

Research paper thumbnail of Characteristics of Gait Variability Among Healthy Indian Construction Workers During Different Load Carrying Modes

Compared to work-related musculoskeletal disorders of the upper extremity and lower back area, mu... more Compared to work-related musculoskeletal disorders of the upper extremity and lower back area, much less investigative focus has been found on the prevention of lower limb musculoskeletal disorders and injury (LLD) in the workplace. A higher incidence of musculoskeletal injuries in lower extremities when carrying a heavy load during daily activities was found among Indian construction workers. The objective of this study was to examine the changes in temporal and distal gait parameters of healthy Indian men and women construction workers with different modes of load carriage. Five healthy male and five female construction workers were selected to walk at self-selected speed along a 7 m walkway, crossing two Kistler force platforms with unloaded and different loaded (15 kg) conditions. Indian males and females displayed significantly different gait patterns under all load conditions while the changes were relatively small in males. The results also indicated that the walking patterns...

Research paper thumbnail of The Influence of Three Different Load Carrying Methods on Gait Parameters of Indian Construction Workers

MOJ Anatomy & Physiology, 2017

Many examinations of various load configurations on healthy men of other professions like militar... more Many examinations of various load configurations on healthy men of other professions like military services have been made, but not much on men engaged in manual labour work in construction industries. Construction workers were found to have higher prevalence of lower extremity problems when carrying heavy load during daily activities at the construction sites. The purpose of this study was to examine the changes in gait patterns of Indian construction workers while carrying a 30 Kg load on their head, on the hand, and across one shoulder. Twenty healthy daily wage male workers without existing clinical orthopaedic problems were selected for this study, ranging in ages from 21to 40years. Thirty six reflective markers were placed on the subjects' lower limb. Six Qualisys Motion Capture Oqus cameras were used to film the subjects, walking along a 75meter walkway. Each worker was asked to walk at his self-selected speed without any load to establish a baseline and then, in random order, walked with a 30 kilograms load on the head, on the hand, and diagonally across one shoulder. The influence of load carrying methods on different gait parameters like speed, stride length, stride width, step time, stance time, swing time, cadence, cycle time, double limb support and etc. were observed. Workers (n=20) walked with significantly different gait parameters when walking with three different load carrying configurations compared with the baseline at p<0.05. Carrying a heavy load on head appeared to cause the least deviation from normal gait pattern among the Indian manual construction workers.

Research paper thumbnail of G1-2 Influence of different modes of load carriage on lower limb biomechanics of industrial workers

The Japanese journal of ergonomics, 2017

Study was conducted with an aim to i) study the lower limb biomechanics of healthy workers, ii) d... more Study was conducted with an aim to i) study the lower limb biomechanics of healthy workers, ii) determine changes of human biomechanics with different modes of load carriage and iii) suggest biomechanically efficient mode of load carriage. Study was conducted on 20 workers in the age range 20 to 55 years. Qualisys Motion Capture System (Sweden), Kistler Force Plate (Switzerland) and Polar S810i HR monitor, Finland were used. Heart rate was recorded at rest and during different modes of load carriage with 40% of body weight i.e. loads on head, shoulder and hand. Movement of lumbar spine while carrying loads was recorded by using Industrial Lumbar Motion Monitor (iLMM), USA. Walking speed for head load, shoulder load and hand load were 4.19±0.55 km.hr-1 , 4.09± 0.82 km.hr-1 and 3.94± 0.84 km.hr-1 respectively. Stride length was longer in case of head mode (1.20±0.45 meter) followed by hand (1.19±0.01 meter) and shoulder mode (1.12±0.04 meter) of load carriage. Average Twisting Velocity of lumbar spine was found lowest in case of head mode of load carriage followed by shoulder and hand mode. Heart Rate cost of carrying loads on head, shoulder and hand were 50±10.54 beats/min, 52.95±10.88 beats/min and 57.45±10.04 beats/min respectively. Energy cost of cost of carrying loads on head, shoulder and hand were 294±61.99 jule/min, 311.346±63.97 jule/min and 337.81±59.03 jule/min respectively. Results demonstrated a significant relationship between kinetic and kinematic parameters of workers at different load conditions. Findings would provide substantial input for designing work and work rest cycle for industrial workforce.

Research paper thumbnail of Human Gait with Reference to Age, Gender and Impact of Load: A Review

Advances in Applied Physiology, 2016

This review paper summarizes the available literature regarding the analysis of human gait of wit... more This review paper summarizes the available literature regarding the analysis of human gait of with reference to age and its effect on the performance. The ability to walk upright on two legs (bipedalism) is the root of what it means to be human and each person displays personal peculiarities in their walking pattern. According to the studies, muscle activity changes with the deviation of gait pattern in different condition and even for different individuals. It has been found that a vivid knowledge about the kinetics and kinematics of human gait improves the understanding of proper mechanisms of walking and has found to be helpful. Studies also suggest that the determinants of gait from decades are never closely being observed which is needed and can be productive. Gait is altered by different factors especially age, gender, working conditions etc. Walking pattern or more precisely the parameters of gait are affected by different load carriage conditions. Aging has a great impact on gait variability. With increase in age gait parameters like step length becomes smaller and step width also becomes wider, even pelvic mobility also decreases which in turn slower the walking speed. A significant difference of gait initiation speed, hip and knee angles has been found between males and females. A few studies have shown a wide range of differences of human walking pattern between different populations. It varies from country to country, even region to region in a particular country due to differences found in the body composition which is again affected by various important factors like climate, food habit, landscapes etc.

Research paper thumbnail of Comparative analysis of gait kinematics of male and female construction workers while carrying asymmetric loads in different modes

2015 International Conference on Industrial Engineering and Operations Management (IEOM), 2015

In order to determine the gender differences in gait pattern during load carriage, 6 male and 6 f... more In order to determine the gender differences in gait pattern during load carriage, 6 male and 6 female construction workers performed load carrying activity for four different load conditions. The loads included a baseline condition in which subject carried no added load. Subjects walked at self-selected speed along the walk way stepping two Kistler Force Plates with load and without load for 15 minutes. Load carried was 20% of subject's body weight. Results demonstrated certain sex specific differences on kinematic pattern in walking. Changes in various walking variables like speed, stride width, stride length, cycle time, double limb support, steps per minute were reported. Walking pattern of both males and females was affected by different modes of load carriage. Males reported maximum exertion during shoulder load whereas females had maximum exertion during hand load. Overall exertion measured by Borg-RPE Scale was found to be more among females as compared with males during the activity. It is important to take careful consideration while giving loads to males and females. Head load is recommended for females and back load for males when carrying 20% of body weight load. In summary, women's gait is characterized by greater changes than men. Characterizing unique gait patterns of women and men during load carriage in construction work may be beneficial for detecting the early stages of walking abnormalities that may lead to pathology with ageing affecting their work life.