Workload effects on muscle fatigue, tissue properties, and stability in older and younger workers
Author Information
Author(s): Ducas Julien, Mathieu Janny, Drouin Michael, Sobczak Stéphane, Abboud Jacques, Descarreaux Martin
Primary Institution: Université du Québec à Trois-Rivières
Hypothesis
For a similar workload, older workers would undergo more considerable physiological and biomechanical changes during a workday compared to younger workers.
Conclusion
The study suggests that age may not be the primary determinant of the impact of a workday on older workers.
Supporting Evidence
- Both age groups experienced similar changes in muscle endurance and postural stability.
- Weight differences between older and younger workers partially explained the observed effects.
- Older workers had significantly higher years of seniority and weight compared to younger workers.
Takeaway
This study looked at how working affects the muscles and balance of older and younger workers, finding that both groups are affected similarly.
Methodology
Participants were divided into two groups (younger and older workers) and assessed for muscle endurance, disc height, and postural stability before and after a workday.
Potential Biases
Healthier workers may have been more willing to participate, potentially skewing results.
Limitations
The small sample size and the specific characteristics of the recruited workers limit the generalizability of the findings.
Participant Demographics
20 younger workers (mean age: 28.89) and 20 older workers (mean age: 59.40), with similar job types.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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