Effects of self stretching on pain and musculoskeletal symptom of bus drivers

Prevalence of low back pain in professional drivers: a meta-analysis

OBJECTIVE

This meta-review aimed to investigate the prevalence of low back pain (LBP) in professional drivers.

STUDY DESIGN

This study is a meta-analysis.

METHODS

PubMed, Scopus, Embase, and Web of Science were searched for cross-sectional studies on the prevalence of LBP in professional drivers up to August 2023. The Agency for Healthcare Research and Quality was utilized for cross-sectional analytical studies. Statistical analysis of the included outcome indicators was conducted using Stata 16.0. The prevalence of LBP among professional drivers was measured using the random effects model, and heterogeneity was evaluated utilizing subgroup analysis. This meta-analysis review was registered with PROSPERO on April 28, 2023, under the registration number CRD42023422205.

RESULTS

In total, 1, 558 results met the inclusion and exclusion criteria, and 53 studies were included. The meta-analysis results indicated that professional drivers had a LBP prevalence of 35.0%, 95%CI (0.266, 0.433) for one week, 33.80%, 95%CI (0.233, 0.443) for one month, and 55.30%, 95%CI (0.503,0.603) for one year. In the global population of professional drivers, the prevalence of LBP was 56.0%, 95%CI (0.472, 0.648) and 54.5%, 95%CI (0.488, 0.602) without and with a history and high risk of LBP, respectively.

CONCLUSIONS

LBP remains prevalent among international drivers and has multiple contributing factors, highlighting the urgent need for increased awareness and prevention strategies.

Efficacy of rectus femoris stretching on pain, range of motion and spatiotemporal gait parameters in patients with knee osteoarthritis: a randomised controlled trial

OBJECTIVE

This study aimed to investigate the efficacy of rectus femoris stretching on pain intensity, knee range of motion (ROM), spatiotemporal gait parameters and function in patients with knee osteoarthritis (KOA).

METHODS

This parallel group, single-blinded randomised controlled trial was conducted in two outpatient physical therapy clinics. Study participants (n=60, with age>45 years) with mild-to-moderate bilateral KOA were randomised into the study group (SG) and control group (CG). SG received rectus femoris stretching exercises together with stretching exercises of the calf, hamstring and iliotibial band, strength exercises for the quadriceps, gluteus medius, gluteus maximus and calf muscles, whereas, the CG received all exercises mentioned for SG except rectus femoris stretching. Pain intensity, ROM, spatiotemporal gait parameters and function were measured before and after 4 weeks of treatment.

RESULTS

The SG showed a significant improvement in the visual analogue scale, Western Ontario and McMaster Universities measure and ROM (p<0.001). The SG also had a significantly greater step length and speed than CG (p<0.001). Extension ROM did not significant difference between the groups (p>0.05).

CONCLUSION

Simple rectus femoris stretching exercises are easy to perform even at home and are beneficial for pain, flexion ROM, function and spatiotemporal gait parameters, such as step length and speed, in KOA patients if the compliance with the exercise regimen is good.

TRIAL REGISTRATION NUMBER

Pan African Clinical Trials Registry PACTR202003828737019.

Functional training improves the effectiveness of stretching programs for university cleaning staff

Purpose

The purpose of this study was to determine whether combining a structured stretching program with functional movement/body position training would yield additive effects on flexibility, ergonomic practices, and subjective pain levels for employees at high risk for work-related musculoskeletal disorders.

Design/methodology/approach

Nine control and 13 experimental university cleaning staff participated in a 10-week full-body stretching intervention led by undergraduate students. Experimental participants also engaged in functional movement/body position training once per week. Joint range of motion, task ergonomic form, pain level, and stretching motivation results were compared pre- and post-intervention.

Findings

Overall flexibility (+25.75 ± 3.33%) and task ergonomic form (+26.3 ± 10.5%) significantly improved and were negatively correlated with pain levels (r = −0.541 and r = −0.317, respectively). Experimental participants experienced greater improvements in shoulder (control: +16.8 ± 9.0%; experimental: +64.2 ± 11.5%) and hip (control: +31.4 ± 9.9%; experimental: +91.2 ± 19.9%) flexibility as well as in task-specific ergonomic form for vertical (control: +0.0 ± 5.3%; experimental: +35.2 ± 10.1%) and horizontal wiping (control: −4.7 ± 4.7%; experimental: +29.0 ± 7.8%). Intrinsic motivation was increased for both groups (+26.2 ± 15.4%).

Originality/value

Supplementing a workplace stretching program with functional movement/body position training has the potential to improve flexibility and decrease pain while simultaneously increasing the likelihood that cleaning staff will participate in self-directed stretching in the future. The intervention serves as a model for workplace health management and wellness-focused community building on university campuses who insource cleaning staff.

Musculoskeletal Disorders Associated with Occupational Driving: A Systematic Review Spanning 2006–2021

Several occupations require workers to spend long periods of time driving road vehicles. This occupational task is associated with musculoskeletal disorders. The purpose of this review was to collate, synthesize, and analyze research reporting on musculoskeletal disorders associated with occupational driving, in order to develop a volume of evidence to inform occupational disorder mitigation strategies. A systematic search of academic databases (PubMed, EBSCO host, CINAHL, SPORTDiscus, and Web of Science) was performed using key search terms. Eligible studies were critically appraised using the Joanna Briggs Institute critical appraisal checklists. A Cohen’s kappa analysis was used to determine interrater agreement between appraisers. Of the 18,254 identified studies, 25 studies were selected and appraised. The mean critical appraisal score is 69% (range 38–100%), with a fair level of agreement (k = 0.332). The studies report that musculoskeletal disorders, most commonly lower back pain, is of concern in this population, particularly in truck, bus, and taxi drivers. Risk factors for these occupations include long hours in a sitting position, years in the profession, vehicle ergonomics, and vibration.

Trunk sway changes in professional bus drivers during actual shifts on long-distance routes

Although professional bus drivers are required to perform their task while adopting a prolonged constrained sitting posture, existence of possible effects in terms of postural strategies has been scarcely investigated under actual working conditions. This study aimed to characterise modifications of trunk sway in 14 professional bus drivers during regular shifts performed on non-urban routes using a pressure-sensitive mat placed on the seat. Centre-of-pressure (COP) time series were extracted from body-seat pressure data to calculate sway parameters (i.e. sway area, COP path length, COP displacements and velocities). Results show generalised increase in trunk sway as driving progresses, which becomes statistically significant after approximately 70-100 minutes of continuous driving. This may indicate the adoption of specific strategies to cope with discomfort onset or a fatigue-induced alteration of postural features. Trunk sway monitoring of bus drivers may be useful in detecting postural behaviours potentially associated with deteriorating performance and discomfort onset. Practitioner summary: Professional bus drivers operate in sitting position for prolonged time. Such constrained posture may induce discomfort and fatigue. We investigated trunk sway during actual shifts using pressure-sensitive mats. Significant increase of sway was detected after 70 min of continuous driving. Body-seat pressure data could be used as discomfort and fatigue markers. Abbreviations: ANOVA-RM: analysis of variance with repeated measures; AP: antero-posterior; COP: center of pressure; EC: ellipse's centroid; ML: medio-lateral; SA: sway area; SP: sway path.

Pain and electromyography reduction cause of sitting upright posture, frequent break, eye rest and self-stretching during smartphone usage

BACKGROUND: Prolonged use of the smartphone causes neck and shoulder pain. However, no study has yet evaluated the effects of sitting upright, combined with frequent breaks, eye rest and self-stretching on pain and EMG during smartphone use. OBJECTIVES: The purpose of the study was to compare pain and muscle activity between the control group (rest only) and the intervention group (rest combined with correct posture, eye rest and self-stretching) in smartphone use for 41.30 minutes. METHOD: Forty-four healthy females aged 18–25 years old were recruited and randomly divided into two groups. The body pain chart and Visual Analog Scale (VAS) were used to evaluate pain. Electromyography (EMG) was used to measure muscle activity of Cervical Erector Spinae (CES) and Upper Trapezius (UT) muscles. RESULTS: The results showed that overall pain and neck pain in the control group increased significantly after smartphone use for 20 min and continually increased to 41.30 minutes (p < 0.05). Overall pain and neck pain in the intervention group was significantly lesser than control group after smartphone use for 41.30 minutes (p < 0.05). In the control group, EMG of CES at 41.30 minute was significantly higher than that of at 0 min (p < 0.05). There was no significant difference in EMG of UT between the two groups. CONCLUSION: Conclusion smartphone user in the interventional group reported less pain when compared to control group after Smartphone use for 41.30 minutes. Therefore, the user aged 18–25 years should have a rest combined with correct posture, eye rest and self-stretching to prevent neck pain during prolonged smartphone use.

Relation of Work Stressors and Work-related MSDs among Indian Heavy Vehicle Drivers

AIMS

The aim of the study was to identify the relation of work stressors and work-related musculoskeletal disorders (WRMSDs) among the heavy vehicle drivers.

METHODS AND MATERIAL

The study involved 154 bus drivers and 161 truck drivers of India. A specially designed questionnaire was used to assess the physical and psychosocial work stresses, job diagnostics, driving hazards, physical environment, and WRMSDs.

STATISTICAL ANALYSIS USED

The odds ratios (OR) and development percentage of the test measurements were calculated in the descriptive statistics. The binary logistic regression and Pearson correlation test were used for the data analysis.

RESULTS

The results of this study showed that the WRMSDs among the truck drivers were higher than those among the bus drivers. The bus drivers were more likely to develop pain in their arms, while the truck drivers were more likely to suffer from neck, shoulders, legs, lower back, and upper back pain. Results from statistical analysis indicated that age, driving hours, physical fatigue, vehicle design, domestic pressure, and growth opportunities had a significant impact on the development of WRMSDs in the bus drivers. While, in the case of truck drivers, it was found that driving hours, tenure, vibration, physical fatigue, mental overload, and job dissatisfaction were significant.

CONCLUSIONS

The study concludes that the work stressors are associated with different types of MSDs, and the level of MSDs differs significantly between the bus and truck drivers.

Reduction of Fatigue and Musculoskeletal Complaints in Garment Sewing Operator through a Combination of Stretching Brain Gym® and Touch for Health

The purpose of this study was to assess the effect of using a combination of stretching and Brain Gym^®(BG) + Touch for Health (TfH) movements to reduce fatigue and musculoskeletal complaints (MSCs) in garment-sewing operators. A quasi-experimental study was performed on 53 respondents with two sessions of stretching movements and BG + TfH movements of 5 min duration, three times a week for four weeks. Fatigue was measured using a reaction timer and MSCs were measured using a Nordic Body Map questionnaire. Wilcoxon and Mann–Whitney U tests were performed to examine the differences of pre/post and between the intervention group (IG) and control group (CG). A significant difference was found in IG for pre- and post-fatigue (p < 0.001) and MSCs (p < 0.001), while in CG there was no difference in fatigue (p = 0.200) and MSCs (p = 0.086). Significant differences were found between the IG and CG groups in terms of fatigue (p = 0.046), as well as in MSCs (p < 0.001). A significant decrease in MSCs per part body in IG was found on the left wrist, left hand, and left knee. The percentage of MSC severity decreased in all parts of the body, except the right shoulder, left elbow, and right thigh.

Cardiovascular Responses to Muscle Stretching: A Systematic Review and Meta-analysis

The aim of this study will be to review the current body of literature to understand the effects of stretching on the responses of the cardiovascular system. A literature search was performed using the following databases: Scopus, NLM Pubmed and ScienceDirect. Studies regarding the effects of stretching on responses of the cardiovascular system were investigated. Outcomes regarded heart rate(HR), blood pressure, pulse wave velocity (PWV of which baPWV for brachial-ankle and cfPWV for carotid-femoral waveforms), heart rate variability and endothelial vascular function. Subsequently, the effects of each outcome were quantitatively synthetized using meta-analytic synthesis with random-effect models. A total of 16 studies were considered eligible and included in the quantitative synthesis. Groups were also stratified according to cross-sectional or longitudinal stretching interventions. Quality assessment through the NHLBI tools observed a "fair-to-good" quality of the studies. The meta-analytic synthesis showed a significant effect of d=0.38 concerning HR, d=2.04 regarding baPWV and d=0.46 for cfPWV. Stretching significantly reduces arterial stiffness and HR. The qualitative description of the studies was also supported by the meta-analytic synthesis. No adverse effects were reported, after stretching, in patients affected by cardiovascular disease on blood pressure. There is a lack of studies regarding vascular adaptations to stretching.

Stretch-induced hypoalgesia: a pilot study

Objectives Stretching is an intervention often used in various kinds of rehabilitation protocols and the effects on pain sensitivity has sparsely been investigated, especially when addressing potential effects on pain. The objective is to investigate the immediate effects of an axial and peripheral prolonged stretch on pressure pain sensitivity (PPT) and temporal summation (TS) on local and distal sites in healthy subjects. Methods Twenty-two healthy volunteers were recruited to participate in this pilot study. Two prolonged stretching protocols were performed: low back and wrist extensors stretches. PPT and pinprick TS were measured pre- and post-intervention at local and remote sites. Repeated measures analysis of variance (ANOVA) was used to examine the effects and significance of the interventions. Results The low back stretch induced an increase in PPT for both local and remote sites, and the wrist stretch produced a PPT increase only at the local site. TS did not change. Conclusions Low back stretching induced an increase in PPT at both local and remote sites whereas the wrist stretch only increased PPT locally, suggesting hypoalgesia at these sites. Further studies are needed to confirm the effect and mechanisms using randomised, controlled and parallel study design. Considering that pain sensitivity is different than clinical pain, results are difficult to extrapolate to clinical practice. Future studies testing clinical pain are needed to better understand the clinical implication of these results.

The Effectiveness of a Multidisciplinary Exercise Program in Managing Work-Related Musculoskeletal Symptoms for Low-Skilled Workers in the Low-Income Community: A Pre-Post-Follow-Up Study

Studies on work-related musculoskeletal symptoms (WRMSs) have been conducted mainly on different types of workforce but not many on low-skilled workers. The purpose of this study was to evaluate the effectiveness of a multidisciplinary exercise program in decreasing the number of body parts with WRMSs for low-skilled workers. This study used a repeated-measures, single-group design. One hundred and five (105) workers participated in eight weekly 90-min sessions (including 45-min workshops and 45-min exercises) in low-income community settings. The exercise program involved a 21-movement stretching exercise and a 10-movement muscle-strengthening exercise. Questionnaire and health-assessment data were collected at the baseline (N = 105) and immediately after the 8-week program (n = 86). The average age of the 105 participants was 50.5 ± 8.7 years (ranging from 31 to 67). Over 80% (n = 87) of them were female, 68.6% (n = 72) were married, and 68.6% (n = 72) had completed secondary school. They reported an average of three body parts with WRMSs at baseline (T0). By the end of the eight weeks (T1), the participants had reduced the number of WRMS-affected body parts, job stress, and incidences of working through pain, and had improved spine flexibility and handgrip strength. The factors significantly affecting the reduction in the number of body parts with WRMSs were change in the workstyle of working through pain, and self-rated health status. Our study has demonstrated that a community-based multidisciplinary program can reduce the number of body parts affected by WRMSs in low-skilled workers in low-income communities.

[Musculoskeletal pain among bus drivers and fare collectors in the Metropolitan Region of Belo Horizonte, Brazil]

Musculoskeletal pain among professionals in the transport sector has been linked to working conditions. The scope of this study was to assess the prevalence of cervical musculoskeletal pain and its relation to pain in other areas (arms, hands and shoulders). The association between neck pain, related to pain in other areas or otherwise, was checked against occupational factors. A cross-sectional, descriptive and analytical study was conducted with 799 bus drivers and 708 fare collectors of the Metropolitan Region of Belo Horizonte, Brazil. The outcome was characterized according to the positive answer to the question about musculoskeletal pain in the anatomical areas studied. The prevalence of neck pain in the sample was highest at 16.3%, followed by pain in the shoulders 15.4%, arms 13.3% and hands 6.3%. The factors associated with musculoskeletal pain in the sample were being female, complaints of disability, perception of threat to safety, vibration, excessive or unbearable noise and sitting in an uncomfortable posture. The results provide clues to transformation of the workplace, thereby contributing to the enhancement of occupational health.

Análise ergonômica da atividade de quebra tradicional do coco babaçu no município de Itapecuru-Mirim/MA

Resumo Objetivo: compreender a situação de trabalho das quebradeiras de coco babaçu à luz dos parâmetros da Análise Ergonômica do Trabalho (AET). Métodos: estudo observacional descritivo com mulheres quebradeiras de coco babaçu no município de Itapecuru-Mirim/MA, no período de setembro a novembro de 2014. Os dados foram coletados a partir de observações de campo, registros de imagens (fotos e vídeos), questionários e entrevistas com informantes-chave. Os instrumentos OWAS e RULA foram utilizados na AET. Resultados: riscos biomecânicos foram evidenciados na coleta, no transporte e na quebra dos cocos. Sintomas osteomusculares foram relatados por 93,5% das 275 participantes. Dores na coluna (58,4%), na região lombar (57%), no ombro direito (31,5%) e nos membros inferiores (30,1%) foram as mais referidas. As quebradeiras acreditam que tais sintomas estejam relacionados ao seu trabalho, mas a autonomia de poder decidir sobre a rotina de trabalho e a boa integração com seus pares foram identificados como elementos capazes de aliviar os efeitos da carga laboral, estimulando a satisfação pessoal e contribuindo para a continuidade dessa atividade secular. Conclusão: os resultados das avaliações das condições de saúde e trabalho, ratificados pelos relatos das informantes-chave, indicam a necessidade de mudança na atividade de quebra tradicional do coco babaçu.

Influence of a community-based stretching intervention on the health outcomes among Korean-Chinese female migrant workers in South Korea: A randomized prospective trial

AIM

To investigate the long-term effectiveness of stretching exercises on the health outcomes of Korean-Chinese female migrant workers.

METHODS

This study was a randomized prospective trial. The study's participants (n = 80) were middle-aged, Korean-Chinese women who had worked full-time during the previous 6 months. They were assigned randomly to an enhanced stretching intervention group or a standard stretching intervention group. Both groups were instructed to carry out a structured 6 min stretching exercise program for at least three times per day and 5 days per week. The enhanced intervention group received additional interventions to increase exercise adherence through individual phone counseling and short message service during the 12 weeks, followed by three sets of acculturation workshops during the period of weeks 13-24. Musculoskeletal fitness, symptoms, and acculturative stress were assessed at baseline, week 12, and week 24. Linear mixed-models were used to test the interventions' effects.

RESULTS

The amount of stretching that was carried out, as a percentage of the recommended amount, was not significantly different between groups. There were significant improvements in flexibility of the back and work-related musculoskeletal disorder symptoms after completing the 24 week intervention but no significant difference existed between the groups. Acculturative stress decreased at week 12 but there was no significant change at week 24.

CONCLUSIONS

The 24 week, community-based stretching program for the Korean-Chinese female migrant workers was effective in increasing their flexibility and decreasing work-related musculoskeletal disorder symptoms. Culturally adaptive augmented interventions to increase social support are suggested in order to reduce acculturative stress.

Muscle activity and mood state during simulated plant factory work in individuals with cervical spinal cord injury

[Purpose] The present study investigated the physical and mental effects of plant factory work in individuals with cervical spinal cord injury and the use of a newly developed agricultural working environment. [Subjects] Six males with C5–C8 spinal cord injuries and 10 healthy volunteers participated. [Methods] Plant factory work involved three simulated repetitive tasks: sowing, transplantation, and harvesting. Surface electromyography was performed in the dominant upper arm, upper trapezius, anterior deltoid, and biceps brachii muscles. Subjects’ moods were monitored using the Profile of Mood States. [Results] Five males with C6–C8 injuries performed the same tasks as healthy persons; a male with a C5 injury performed fewer repetitions of tasks because it took longer. Regarding muscle activity during transplantation and harvesting, subjects with spinal cord injury had higher values for the upper trapezius and anterior deltoid muscles compared with healthy persons. The Profile of Mood States vigor scores were significantly higher after tasks in subjects with spinal cord injury. [Conclusion] Individuals with cervical spinal cord injury completed the plant factory work, though it required increased time and muscle activity. For individuals with C5–C8 injuries, it is necessary to develop an appropriate environment and assistive devices to facilitate their work.