Introduction. Musculoskeletal disorders are one of the main work-related health problems, specifically those affecting the back. Low back pain is associated with personal, psychosocial, physical, and biomechanical risk factors. This study proposes an analysis of the functional and subjective evaluation of the use of a passive lumbar support exoskeleton (Laevo v.2.5) as a tool for the prevention and management of musculoskeletal symptoms, hypothesizing an improvement in physical performance and a reduction in perceived pain during load lifting tasks and maintenance of the forward flexed posture. Materials and methods. Five male workers, with an average age of 44.6 years, used the Laevo v.2.5 exoskeleton for one month during their work activities. Assessments were carried out in two sessions (T0 and T1) and included questionnaires, physical efficiency tests, and functional tasks. Results. The results are consistent with the initial hypotheses. The performance of the Load Carry test (8.5 ± 0.64 s to 7.8 ± 2.2 s) reflects the functionality of the exoskeleton, while for the Toes Reach (-10.7 ± 15.8 cm vs. -7.9 ± 10.9 cm) and 5-Sit to stand (9.84 ± 2.8 s vs. 6.2 ± 3.7 s) tasks show a non-statistically significant increase. On the contrary, the YMCA had results contrary to the initial idea (118.4 ± 21.7 bpm vs. 84 ± 44.1 bpm). Other tests, such as load lifting and holding time, did not show significant differences, or produced results that contradicted the initial hypotheses. Discussion. The Laevo v.2.5 exoskeleton had a positive effect on lumbar support and functional performance, suggesting potential in the industrial field. However, further studies are needed to optimize adaptability and customization to improve its application.
Introduzione. I disturbi muscolo-scheletrici sono uno dei principali problemi di salute correlati al lavoro, nello specifico quelli a carico della schiena. Il mal di schiena (Low Back Pain) è associato a fattori di rischio personali, psicosociali, fisici e biomeccanici. Il presente studio propone un’analisi della valutazione funzionale e soggettiva dell’uso di un esoscheletro passivo di supporto lombare (Laevo v.2.5) come strumento di prevenzione e gestione di sintomi muscolo-scheletrici, ipotizzando un miglioramento della prestazione fisica e una riduzione del dolore percepito durante compiti di sollevamento carico e mantenimento della postura flessa anteriore. Materiale e metodi. 5 lavoratori di sesso maschile, età media 44,6 anni hanno utilizzato l’esoscheletro Laevo v.2.5 per un mese durante l’attività lavorativa. Le valutazioni, effettuate in 2 sessioni (T0 e T1), hanno previsto questionari, test di efficienza fisica e compiti funzionali. Risultati. I risultati mostrano risultati coerenti con le ipotesi iniziali. La prestazione del test di Trasporto carico (8,5 ± 0,64 s a 7,8 ± 2,2 s) rispecchia la funzionalità dell’esoscheletro, mentre per i compiti Toes Reach (-10,7 ± 15,8 cm vs -7.9 ± 10,9 cm) e 5-Sit to stand (9,84 ± 2,8 s vs 6,2 ± 3,7 s) si evidenzia un aumento non statisticamente significativo. Al contrario, il YMCA ha avuto dei risultati contrari all’idea iniziale (118,4 ± 21,7 bpm vs 84 ± 44,1 bpm). Altri test, invece, come il Sollevamento carico e Tempo di tenuta non hanno registrato differenze significative, o sono emersi risultati discordanti rispetto alle ipotesi iniziali. Discussione. L’esoscheletro Laevo v.2.5 ha influenzato positivamente gli effetti sul supporto lombare e nelle prestazioni funzionali, suggerendo una potenzialità nell’ambito industriale. Tuttavia, sono necessari ulteriori studi per ottimizzare l’adattabilità e la personalizzazione per migliorare la sua applicazione.
Valutazione funzionale e soggettiva di un esoscheletro passivo di supporto lombare prima e dopo 4 settimane di utilizzo sul luogo di lavoro.
MARCIGAGLIA, FILIPPO
2024/2025
Abstract
Introduction. Musculoskeletal disorders are one of the main work-related health problems, specifically those affecting the back. Low back pain is associated with personal, psychosocial, physical, and biomechanical risk factors. This study proposes an analysis of the functional and subjective evaluation of the use of a passive lumbar support exoskeleton (Laevo v.2.5) as a tool for the prevention and management of musculoskeletal symptoms, hypothesizing an improvement in physical performance and a reduction in perceived pain during load lifting tasks and maintenance of the forward flexed posture. Materials and methods. Five male workers, with an average age of 44.6 years, used the Laevo v.2.5 exoskeleton for one month during their work activities. Assessments were carried out in two sessions (T0 and T1) and included questionnaires, physical efficiency tests, and functional tasks. Results. The results are consistent with the initial hypotheses. The performance of the Load Carry test (8.5 ± 0.64 s to 7.8 ± 2.2 s) reflects the functionality of the exoskeleton, while for the Toes Reach (-10.7 ± 15.8 cm vs. -7.9 ± 10.9 cm) and 5-Sit to stand (9.84 ± 2.8 s vs. 6.2 ± 3.7 s) tasks show a non-statistically significant increase. On the contrary, the YMCA had results contrary to the initial idea (118.4 ± 21.7 bpm vs. 84 ± 44.1 bpm). Other tests, such as load lifting and holding time, did not show significant differences, or produced results that contradicted the initial hypotheses. Discussion. The Laevo v.2.5 exoskeleton had a positive effect on lumbar support and functional performance, suggesting potential in the industrial field. However, further studies are needed to optimize adaptability and customization to improve its application.| File | Dimensione | Formato | |
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https://hdl.handle.net/20.500.12608/96387