Physiological changes during prolonged standing and walking considering age, gender and standing work experience

Wall, Rudolf; García, María-Gabriela; Läubli, Thomas; Seibt, Robert; Rieger, Monika A.; Martin, Bernard J.; Steinhilber, Benjamin

doi:10.1080/00140139.2020.1725145

Cited by 19 publications

(22 citation statements)

References 51 publications

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“…These expected effects conform to previous results showing that prolonged standing induce long-lasting muscle fatigue (Garcia et al, 2015(Garcia et al, , 2016(Garcia et al, , 2018Wall et al, 2020), edema Antle et al, 2018;Garcia et al, 2018;Hansen et al, 1998;Wall et al, 2020;Zander et al, 2004), and discomfort (Garcia et al, 2015(Garcia et al, , 2018, Drury et al, 2008. However, in this field study, lower-leg muscle fatigue and edema were not yet significant after 6 hr of standing work, when wearing regular socks, while these effects were seen to appear within 3 hr of static standing work at an office workstation Garcia et al, 2015Garcia et al, , 2016Garcia et al, , 2018Wall et al, 2020). In this latter condition, lowerleg muscle fatigue was strongly present after 3 hr of light manual work including various rest break distributions (Garcia et al, 2015(Garcia et al, , 2016(Garcia et al, , 2018 regardless of age, gender, and habituation to standing work (Garcia et al, 2015;Wall et al, 2020); hence, these factors are not considered in the present work.…”

Section: Prolonged Standing With Regular Sockssupporting

confidence: 92%

Comparison of Physiological Effects Induced by Two Compression Stockings and Regular Socks During Prolonged Standing Work

et al. 2021

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Objective The goal of this study was to evaluate and compare lower-leg muscle fatigue, edema, and discomfort induced by the prolonged standing of security guards wearing regular socks and those wearing 15–20 or 20–30 mmHg compression stockings as intervention. Background Compression stockings are somewhat used by individuals standing all day at work. However, quantitative evidence showing their potential benefits for lower-leg health issues in healthy individuals during real working conditions is lacking. Method Forty male security employees participated in the study. All were randomly assigned to the control or one of the two intervention groups (I15–20 or I20–30). Lower-leg muscle twitch force, volume, and discomfort ratings were measured before and after their regular 12-hr standing work shift. Results Significant evidence of lower-leg long-lasting muscle fatigue, edema, and discomfort was observed after standing work for guards wearing regular socks. However, no significant changes were found for guards wearing either compression stockings. Conclusion In healthy individuals, compression stockings seem to attenuate efficiently the tested outcomes in the lower leg resulting from prolonged standing. Application Occupational activities requiring prolonged standing may benefit from 15–20 or 20–30 mmHg compression stockings. As similar benefits were observed for both levels of compression, the lower level may be sufficient.

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Section: Prolonged Standing With Regular Sockssupporting

confidence: 92%

Comparison of Physiological Effects Induced by Two Compression Stockings and Regular Socks During Prolonged Standing Work

et al. 2021

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“…The four synergies that described the phases of weight acceptance, propulsion, early swing and late swing were found independently of sex, age group or locomotion types, in accordance with most of the available body of existing literature that, however, does not include any study that specifically investigated sex as a biological variable during locomotion [31,33,37,41,42]. Some previous works that analyzed non-factorized EMG activities from the lower limbs found that females and males shared similar muscle activations during both walking [12][13][14][15][16][17] and running [18,19]. However, subtler sex-related differences were found in other works.…”

Section: Discussionsupporting

confidence: 80%

“…Similarly, only a few studies analyzed the way in which females and males activate muscles to produce locomotion. Some of those works reported no effect of sex on the way muscles are activated during either walking [12][13][14][15][16][17] or running [18,19]. Others reported higher or earlier muscle activations in females than in males during either walking [19][20][21][22] or running [23][24][25][26], with females sometimes showing a higher coactivation of agonist and antagonists muscles during walking [27,28].…”

Section: Introductionmentioning

confidence: 99%

Sex-specific tuning of modular muscle activation patterns for locomotion in young and older adults

Santuz

Janshen

Brüll

et al. 2021

Preprint

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There is increasing evidence that including sex as a biological variable is of crucial importance to promote rigorous, repeatable and reproducible science. In spite of this, the body of literature that accounts for the sex of participants in human locomotion studies is small and often produces controversial results. Here, we investigated the modular organization of muscle activation patterns for human locomotion using the concept of muscle synergies with a double purpose: i) uncover possible sex-specific characteristics of motor control and ii) assess whether these are maintained in older age. We recorded electromyographic activities from 13 ipsilateral muscles of the lower limb in young and older adults of both sexes walking (young and old) and running (young) on a treadmill. The data set obtained from the 215 participants was elaborated through non-negative matrix factorization to extract the time-independent (i.e., motor modules) and time-dependent (i.e., motor primitives) coefficients of muscle synergies. We found sparse sex-specific modulations of motor control. Motor modules showed a different contribution of hip extensors, knee extensors and foot dorsiflexors in various synergies. Motor primitives were wider (i.e., lasted longer) in males in the propulsion synergy for walking (but only in young and not in older adults) and in the weight acceptance synergy for running. Moreover, the complexity of motor primitives was similar in younger adults of both sexes, but lower in older females as compared to older males. In essence, our results revealed the existence of small but defined sex-specific differences in the way humans control locomotion and that these strategies are not entirely maintained in older age.

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“…Lastly, the decrease in fatigue related to the physical aspect was experienced by workers in the form of less headaches, back pain, always feeling thirsty, and feeling unwell. The average age of the workers was 32.9 years; as this is not particularly young, age can affect the level of fatigue, which is marked by errors in work [48] and a continuous decrease in muscle activity [49], although there was a decrease in the fatigue in the average results of all workers. The cause of this fatigue was influenced by the oxygenation conditions of the muscles which, in turn, can affect the health and productivity of workers [50].…”

Section: Body Areamentioning

confidence: 98%

The effects of ergonomic intervention on the musculoskeletal complaints and fatigue experienced by workers in the traditional metal casting industry

Susihono

Adiatmika

2021

Heliyon

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This research aimed to evaluate the effects of ergonomic intervention on the musculoskeletal complaints and fatigue experienced by workers of the traditional metal casting industry that manually pour molten metal into molds. The workers' physical complaints are typically in the form of musculoskeletal complaints, which include (1) an activity aspect, (2) a physical aspect, and (3) a motivational aspect. The method used in this research was stratified random sampling. The subjects (n ¼ 127) were divided into three groups, namely, the process cement department (PCD) group, the loam department (LD) group, and the black sand department (BSD) group. The evaluation was carried out using questionnaires based on musculoskeletal complaints and fatigue. Meanwhile, an assessment of musculoskeletal complaints and fatigue was conducted one month before the ergonomic intervention, and then during follow-ups at one and eight months after the ergonomic intervention. The results showed that the average reduction in musculoskeletal complaints and fatigue experienced by the workers in the LD group was lower than that of the workers in the PCD and BSD groups at one and eight months after the ergonomic intervention. The positive effects of the ergonomic intervention on musculoskeletal complaints were evident in terms of the back, waist, left and right thighs, right knee, right ankle, and left foot (p < 0.05). The positive effects of the ergonomic intervention on the level of activity-based fatigue were felt in the body and legs, and the feeling of wanting to lie down decreased. The motivational fatigue experienced by the workers manifested as difficulty in thinking, concentrating, and controlling behavior, while the physical fatigue experienced by the workers was in the form of headaches, back pain, excessive thirst, and feeling unwell (p < 0.05). It can be concluded that ergonomic intervention can reduce both musculoskeletal complaints and fatigue, especially by conducting a morning briefing, using ergonomic ladles when pouring molten metal into molds, and consuming nutritious food during break times.

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Physiological changes during prolonged standing and walking considering age, gender and standing work experience

Cited by 19 publications

References 51 publications

Comparison of Physiological Effects Induced by Two Compression Stockings and Regular Socks During Prolonged Standing Work

Comparison of Physiological Effects Induced by Two Compression Stockings and Regular Socks During Prolonged Standing Work

Sex-specific tuning of modular muscle activation patterns for locomotion in young and older adults

The effects of ergonomic intervention on the musculoskeletal complaints and fatigue experienced by workers in the traditional metal casting industry

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