Occurrence and Trends of Musculoskeletal Pain Among Ski Instructors

Musculoskeletal disorders (MSD) are incredibly common and are often related to work load. For any occupational or public health intervention, injury prevention is preferred to injury treatment. Occupational health and injury prevention research has the potential to help mitigate MSD in the workplace. The aim of this study was to determine how the work demands of ski instructors may affect the health of their musculoskeletal system. Material and Methods A cross-sectional study involved the participation of 87 ski instructors (age = 34.61 ±10.67) in Bosnia and Herzegovina (ATUS in Bosnia and Herzegovina). Observed variables were the prevalence of MSD measured using a modified Nordic questionnaire about injuries during the previous ski season (neck, shoulders, elbows, wrist, upper back, lower back, one or both hips, one or both knees, and ankle). Means and standard deviations for each of the variables were calculated, and differences between genders were examined using an independent sample t-test. Results Prevalence of MSDs in ski instructors was most common in neck (13.8%), shoulders (12.6%), elbows (4.6%), wrist (9.2%), upper back (10.3%), lower back (46.0%), one or both hips (9.2%), one or both knees (29.9%), and ankle (9.2%). The results showed statistically significant differences in MSD between genders in the neck (p=.034); shoulders (p=.017); upper back (p=.027); one or both knees (p=.003) and in the ankle joint (p=.011)

The Benefits of Static Stretching on Health: A Systematic Review

Background: The positive effects of static stretching exercises (SS) on physical fitness and rehabilitation are well established, but the effect on general health and physical fitness, including muscle function, flexibility, and activities of daily living at the individual level are less well understood. Objectives: The objective of this systematic review was to compile the latest research on the effects of SS on general health and different occupational groups with regards to improving or maintaining general health. Search Methods: This review was registered on PROSPERO and followed PRISMA guidelines. PubMed, Web of Science, Scopus, MEDLINE-Online medical articles, and Science Direct databases were searched from 2010 to 2022 (including 2022) using the search string ‘static stretching effects OR muscle stretching exercises AND rehabilitation AND injury prevention’.Selection criteria: Inclusion criteria: (1) research questions relating to the positive impact of SS on health status, (2) a sample of subjects that included healthy adults, the elderly, pregnant women, and people in the rehabilitation process. Exclusion Criteria: (1) studies related to the positive/negative impact of SS on muscle performance, (2) inappropriate methods of performing SS, (3) a sample of subjects formed exclusively from professional athletes, (4) studies that had an additional exercise protocol in addition to SS. Main Results: The database search yielded 799 articles of which 20 remained after elimination according to the selection criteria. The articles found that the effect of SS, regardless of the protocol used or whether it is active or passive, has a positive effect on the health status of the subjects. SS can reduce work-related musculoskeletal disorders (WMSD), improve respiratory muscle function in patients after a stroke with hemiparesis, improve lung function in patients with chronic obstructive pulmonary disease (COPD), and can be used in pregnancy to reduce the risk or pre- eclampsia. Conclusion: SS is an effective and safe method for improving flexibility and ROM, preventing muscle atrophy, enhancing physical functioning, and improving quality of life with minimal risk of injury

Speed, Agility and Power Potential of Young Basketball Players

Background. As basketball constantly evolves, physical performance becomes more and more important. Physical fitness assessments are the most reliable way to find out at what level a basketball player is prepared to perform. Therefore, the main aim of this research was to determine if the speed, agility and power of under-16-year- old (U16) basketball players is related to their playing positions. Methods. The study included (n = 40) young basketball (aged 14.99 ± 0.84 years) players. The variables included height, body mass, body mass index (BMI), fat-free mass (FFM), the percentage of body fat (BF%), the counter movement jump (CMJ), counter movement jump with free arms (CMJ free arms), squat jump (SJ), 5m, 10m, 15m and 20m sprints, T-test, Illinois test and 505 test. Results. The results showed that centers are taller and heavier than other positions, while the speed, agility and power of forwards are greater than other positions. Conclusions. At the youth basketball level there are differences in anthropometric and physical fitness testing results between positions. This supports the fact that athletes may be more likely to be selected for a given position based on how their anthropometric and athletic abilities pair with the demands of a given position