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Randomized Controlled Trial
. 2018 Jan 17:13:101-108.
doi: 10.2147/CIA.S144288. eCollection 2018.

Integrating participatory ergonomic management in non-weight-bearing exercise and progressive resistance exercise on self-care and functional ability in aged farmers with knee osteoarthritis: a clustered randomized controlled trial

Sang-Arun Isaramalai  1 , Kanokwan Hounsri  1 , Chanon Kongkamol  2 , Pornnit Wattanapisitkul  3 , Napaporn Tangadulrat  3 , Tippawan Kaewmanee  3 , Varah Yuenyongviwat  4
Affiliations
Randomized Controlled Trial

Integrating participatory ergonomic management in non-weight-bearing exercise and progressive resistance exercise on self-care and functional ability in aged farmers with knee osteoarthritis: a clustered randomized controlled trial

Sang-Arun Isaramalai et al. Clin Interv Aging. .

Abstract

Background: Ergonomic hazards are the most important cause of knee osteoarthritis (OA) in aged para rubber farmers. Ergonomic management comprising improvement of working conditions and muscle-strengthening exercise has been well documented in terms of workers' health benefit. However, those interventions were not adequate to sustain the advantage. Few studies have demonstrated the effect of integrating participatory ergonomic management (PEM) in non-weight-bearing exercise (NWE) and progressive resistance exercise (PRE), and none has focused on aged para rubber farmers with knee OA.

Purpose: This study investigated the effect of PEM-NWE, PEM-PRE, and standard treatment (ST) on self-care and functional ability in the aged population.

Materials and methods: A single-blinded, clustered randomized controlled trial was carried out. Participants (n=75) from three different communities in southern Thailand were randomly assigned to PEM-NWE, PEM-PRE, and ST. Self-care and functional ability (pain, stiffness, and physical function) were examined at baseline (B), during the intervention at Week 5 (W5), and after its completion at Week 9 (W9). Mean comparison of those outcomes over time was made using Generalized Linear Mixed Models (GLMMs).

Results: Compared to the standard treatment, the means of both groups, PEM-NWE and PEM-PRE, were significantly increased in self-care and functional ability. However, no significant difference between PEM-NWE and PEM-PRE was found.

Conclusion: Either or both interventions should be incorporated into nursing practice in order to promote occupational health and enhance quality of work life for Thai aged farmers. Further study on their cost-effectiveness is highly recommended.

Keywords: ergonomic; farmer; functional ability; osteoarthritis; self-care.

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Conflict of interest statement

Disclosure The authors report no conflicts of interest in this work.

Figures

Figure 1
Figure 1
Participant distribution in a clustered randomized controlled trial comparing PEM-NWE, PEM-PRE, and ST. Abbreviations: PEM-NWE, participatory ergonomic management with non-weight-bearing exercise; PEM-PRE, participatory ergonomic management with progressive resistance exercise; ST, standard treatment.
See this image and copyright information in PMC

References

    1. Cross M, Smith E, Hoy D, et al. The global burden of hip and knee osteoarthritis: estimates from the Global Burden of Disease 2010 study. Ann Rheum Dis. 2014;73(7):1323–1330. - PubMed
    1. Silverwood V, Blagojevic-Bucknall M, Jinks C, Jordan JL, Protheroe J, Jordan KP. Current evidence on risk factors for knee osteoarthritis in older adults: a systematic review and meta-analysis. Osteoarthr Cart. 2015;23(4):507–515. - PubMed
    1. Ezzat AM, Li LC. Occupational physical loading tasks and knee osteoarthritis: a review of the evidence. Physiother Can. 2014;66(1):91–107. - PMC - PubMed
    1. Jafarinasabian P, Inglis JE, Reilly W, Kelly OJ, Ilich JZ. Aging human body: changes in bone, muscle and body fat with consequent changes in nutrient intake. J Endocrinol. 2017;234(1):R37–R51. - PubMed
    1. Bensa-ard N. Work Condition and Musculoskeletal Pain Among Para Rubber Planters: A Case Study in Tambon Nakleua Kantang, Changwat Trang [dissertation] Songkhla: Prince of Songkla University; 2002. Thai.

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