Rice farming is done using manual methods and involves strenuous labour, which can lead to musculoskeletal disorders.
OBJECTIVE:
To identify the factors associated with knee musculoskeletal impairments and related pain among rice farmers complaining of knee pain.
METHODS:
The study employed a community-based, cross-sectional design. Full-time rice farmers ( 201) were surveyed. A questionnaire was used to record demographics and details of farm work; followed by a physical examination of knee structures impairments.
RESULTS:
The prevalence of knee impairment was highest among farmers with joint dysfunction (79.6%), followed by those with dysfunctional hamstring muscles (52.74%), quadriceps muscles (44.28%), neural tissue (38.81%), and ligaments (1.99%). It was lowest among farmers with meniscus dysfunction (1.49%). Stooping with twisting was strongly associated with knee joint and quadricep muscle impairment. Stooping with twisting and carrying loads were associated with hamstring muscle impairment. Stooping while twisting and being overweight was associated with neural tissue impairment. Being overweight was significantly associated with ligament impairment. There were no factors significantly associated with meniscus dysfunction.
CONCLUSIONS:
Knee musculoskeletal impairments is common among Thai rice farmers. Joint dysfunction was common. The factors associated with knee musculoskeletal impairments included being overweight, stooping while twisting and carrying heavy weight.
Thai Rice Exporters Association. Rice export quantity and value: 2014. Online sources 2014 [cited 2015 January 28]. Available from: www.thairiceexporters.or.th/statistic_2014.html.
2.
KarukunchitUPuntumetakulRSwangnetrM, et al. Prevalence and risk factors analysis of lower extremity abnormal alignment characteristics among rice farmers. Patient Preference and Adherence2015; 9: 785-795.
3.
PuntumetakulRSiritaratiwatWBoonprakobY, et al. Prevalence of Musculoskeletal Disorder in Farmer: Case study in Sila, Muang Khon Kaen, Khon Kaen Province. Journal of Medical Technology and Physical Therapy2011; 23: 298-303.
4.
BirabiBNDienyePONdukwuGU. Prevalence of low back pain among peasant farmers in a rural community in South South Nigeria. Rural and Remote Health (Internet)2012; 12: 1920. Available: http://www.rrh.org.au/articles/subviewnew.asp?ArticleID=1920 (Accessed 3 August 2016).
5.
KeawduangdeePPuntumetakulRSwangnetrM, et al. Prevalence of low back pain and associated factors among farmers during the rice transplanting process. Journal of Physical Therapy Science2015; 27: 2239-2245.
6.
DreinhoferKReichelHKaferW. Lower extremity pain. Best Practice and Research Clinical Rheumatology2007; 21: 135-152.
7.
PettyN. Neuromusculoskeletal Examination and Assessment: A handbook for therapists. 4th ed. China: Elsevier; 2011.
8.
MokkamulP. Ethnobotanical study of rice growing process in northeastern Thailand. Ethnobotany Research & Applications2006; 4: 213-222.
9.
KarukunchitUSwangnetrMPuntumetakulR, et al. Ergonomic analysis for risk of lower extremity injury in rice cultivation process. In Proceedings of the 6th International Conference on Public Health among GMS Countries: Health Service System for a Borderless Community: Human Resource Development for a District Health System; 6-7 November 2014; Khon Kaen, Thailand; Khon Kaen University; 2015.
10.
DasBGangopadhyayS. An ergonomics evaluation of posture related discomfort and occupational health problems among rice farmers. Occupational Ergonomics2011; 10: 25-38.
11.
ReidCBushPCummingsN, et al. A review of occupational knee disorders. Journal of Occupational Rehabilitation2010; 20: 489-501.
12.
MeyerRHRadwinRG. Comparison of stoop versus prone postures for a simulated agricultural harvesting task. Applied Ergonomics2007; 38: 549-555.
13.
BakerPReadingICooperC. Knee disorders in the general population and their relation to occupation. Occupational and Environmental Medicine2003; 60: 794-797.
14.
ReidCBushPKarwowskiW, et al. Occupational postural activity and lower extremity discomfort: A review. International Journal of Industrial Ergonomics2010; 40(3): 247-256.
15.
OsborneABlakeCFullemBM, et al. Risk factors for musculoskeletal disorders among farm owners and farm workers: a systematic review. American Journal of Industrial Medicine2012; 55: 376-389.
16.
KeoghEHerdenfeldtM. Gender, coping and the perception of pain. Pain2002; 97: 195-201.
17.
YuSLuMGuG, et al. Musculoskeletal symptoms and associated risk factors in a large sample of Chinese workers in Henan province of China. American Journal of Industrial Medicine2012; 55: 281-293.
HattamPSmeathamA. Special test in musculoskeletal examination: an evidence-based guide for clinicians. Churchill livingstone, 2010.
20.
NunesGSStapatitEKirstenMNoronhaMSantosG. Clinical test for diagnosis of patellofemoral pain syndrome: systematic review with meta-analysis. Physical Therapy in Sport2013; 14: 54-59.
21.
CookCMarbylReimanMHegedusE. Best test/clinical finding for screening and diagnosis of patellofemoral pain syndrome: a systematic review. Physiotherapy2012; 98: 93-100.
22.
NijsJGeelCVan der auweraCVan de veldeB. Diagnostic value of five clinical test in patellofemoral pain syndrome. Manual Therapy2006; 11: 69-77.
23.
ButlerDSJoneMAGoreR. Mobilisation of the nervous system. Melbourne: Churchill Livingstone, 2004.
24.
HenrikssonKG. Hypersensitivity in muscle pain syndromes. Current Pain and Headache Reports2003; 7: 426-432.
25.
MeserveBBClelandJABoucherTR. A meta-analysis examining clinical test utilities for assessing meniscal injury. Clin Rehabil2008; 22: 143-161.
26.
KastelinMLuijusterburgPAWagemakersHP, et al. Assessing medial collateral ligament knee lesions in general practice. Am J Med2008; 121: 982-988.
27.
BenjaminseAGokelerAvan der SchansCP. Clinical diagnosis of an anterior cruciate ligament rupture: a meta-analysis. J Orthop Sports Phy Ther2006; 36: 267-288.
28.
BarbeMFBarrAE. Inflammation and the pathophysiology of work-related musculoskeletal disorders. Brain Behavior And Immunity2006; 20(5): 423-429.
29.
MarrasWCutlipRBurtS, et al. National occupational research agenda (NORA) future directions in occupational musculoskeletal disorder health research. Applied Ergonomics2009; 40: 15-22.
30.
Occupational Safety and Health Administration (OSHA): Ergonomic: The study of work; 2000. Available from: https://www.oshagov/Publications/osha3125pdf.
31.
FargoMKonitzerL. Meralgia paresthetica due to body armor wear in the U.S. soldiers serving in Iraq: A case report and review of the literature. Military Medicine2007; 172(6): 663-665.
32.
TubachFBeauteJLeclercA. Natural history and prognostic indicators of sciatic. Journal of Clinical Epidemiology2004; 57: 174-179.
33.
JuntaracenaKSwangnetrM. Preliminary Study of Effects of Muddy Work Terrain on Lower Extremity Loading during Rice Planting Process. The Proceedings of the 19th Triennial Congress of the International Ergonomics Association – Melbourne, 9-14 August, 2015.
34.
JensenRHystadTBaerheimA. Knee function and pain related to psychological variables in patients with long-term patellofemoral pain syndrome. Journal of Orthopaedic & Sports Physical Therapy2005; 35(9): 594-600.
35.
PivaSRFitzgeraldGKIrrgangJJ, et al. Associated of physical function and pain in patients with patellofemoral pain syndrome. Archives of Physical Medicine and Rehabilitation2009; 90(2): 282-295.
