Biography

I am a Senior Lecturer in Nursing and a registered nurse who is currently working at University of Ruhuna, Sri Lanka. After my undergraduate education in BSs Nursing Hons by receiving a 2nd class upper division at the final examination and by becoming the rank 1 student in the 1st batch of BSc Nursing at University of Sri Jayewardenepura, I started my carrier as a Temporary Demonstrator in the same University at the BSc Nursing Degree Programme. During that period, I gained my clinical experience practicing as a nurse at Asiri Surgical Hospital on the locum basis. After receiving one year experience from the University, I moved to Sri Jayewardenepura General Hospital, Sri Lanka as a Nursing Officer to practice as a clinical nurse. Afterwards, I started my academic carrier as a lecturer in Nursing at University of Ruhuna. Later, I obtained my PhD in Nursing from University of Ruhuna in the year of 2019.
My primary academic interest currently is in the areas of Women’s health, Menopause, Sarcopenia, Frailty, Geriatrics, Health promotion and Nursing education. On life, outside as an academic, I am interested in music and sports and involve in different events of such activities with students and staff at faculty and university level.

Course/Modules Teaching for undergraduates

• Fundamentals of Nursing
• Surgical Nursing
• Professional Development in Nursing
• Statistics and Epidemiology
• Research methods
• Nutrition and Dietetics

Research and publications

Present research interests

Menopause, Sarcopenia, Frailty, Body composition, Health Promotion, Geriatrics, New trends in Nursing Education

Special awards and prizes

• Orations
• Menopause; a significant milestone in women's life 18^th Academic Sessions and 17^th Vice Chancellor’s Awards Ceremony University of Ruhuna
• Sarcopenia; a scantily addressed, highly imperative area of aging in Sri Lanka Oration 2022 at Sri Lanka Association of Geriatric Medicine (SLAGM).


• Outstanding awards
• Vice-Chancellor’s gold medal awarded for the postgraduate scholar who has shown the excellent performance during the postgraduate study in generating knowledge that has accepted internally at 227^th convocation 2020.
• A cash award for SCI journal article publications by Faculty of Graduate Studies, University of Ruhuna 2021
• Merit award for young innovator in health sciences on “Simple cost-effective approaches to detect and manage menopause related health issues” – awarded by the Young Innovators Award in Health Sciences, Research Conference in Health Sciences, Faculty of Allied Health Sciences, University of Sri Jayewardenepura, Sri Lanka, 31^st March, 2021.
• The most outstanding young researcher 2021 (awarded at UoR sessions 2022 – 19^th AS and 18^th VC awards).


• Awards for Research publication
• Best Oral presentation – 2 ^nd place for the Oral presentation held at 1 st Research symposium, Faculty of Allied Health Sciences, University of Ruhuna (RuFARS), Galle, Sri Lanka, (2018, November) on “Impact Of Health Promoting Lifestyle Modification Education Intervention On Anthropometric Adiposity Measures And Physical Performance Of Postmenopausal Women.
• Best Poster presentation – 1 ^st place for the poster presentation held at Annual Academic Sessions of Faculty of Medicine, University of Ruhuna, (FMAS) Galle, Sri Lanka, (2019, August) on “Association between bone mineral density and body composition – a study involving in pre and postmenopausal women.
• Best oral presentation – 1 ^st place for the oral presentation at Annual Academic Sessions of Faculty of Medicine, University of Ruhuna, (FMAS) Galle, Sri Lanka, on “Effect of parity and breast-feeding duration on measures of sarcopenia in women aged 40-60 years: a community-based cross-sectional study”.
• Best oral presentation - 1 st place – SLAGM 2022 R Karunadasa, N Rathnayake, S Lekamwasam. Performancebased and self-reported physical functions among community dwelling older adults from a rural community in Sri Lanka. Sri Lanka Association of Geriatric Medicine Annual Congress (SLAGM). 2022 (Oral).
• Best oral presentation - 2 ^nd place – SLAGM 2022 N Rathnayake, T Abeygunasekara, W De Zoysa, D Palangasinghe, S Lekamwasam. Katz index of activities of daily living in assessing functional status of older people; reliability and validity of Sinhala version. Sri Lanka Association of Geriatric Medicine Annual Congress (SLAGM). 2022 (Oral).

Research Publications (full paper)

Full article Publications at referred indexed journals - SCI
• Rathnayake, N., Alwis, G., Lenora, J. and Lekamwasam, S., 2018. Concordance between appendicular skeletal muscle mass measured with DXA and estimated with mathematical models in middle-aged women. J Physiol Anthropol. 2018 Jul 31;37(1):19. doi: 10.1186/s40101-018-0179-5.
• Rathnayake, N., Lenora, J., Alwis, G. and Lekamwasam, S., 2018. Cross cultural adaptation and analysis of psychometric properties of Sinhala version of Menopause Rating Scale. Health Qual Life Outcomes. 2018 Aug 6;16(1):161. doi: 10.1186/s12955-018-0977-9.
• Rathnayake, N., Alwis, G., Lenora, J. and Lekamwasam, S., Development and Cross-validation of Anthropometric Predictive Models to Estimate the Appendicular Skeletal Muscle Mass in Middle-Aged Women in Sri Lanka, Indian J Med Res 150, September 2019, pp 297-305 DOI: 10.4103/ijmr.IJMR_1961_17.
• Rathnayake, N., Alwis, G., Lenora, J. and Lekamwasam, S, “Impact of Health-Promoting Lifestyle Education Intervention on Health-Promoting Behaviors and Health Status of Postmenopausal Women: A Quasi-Experimental Study from Sri Lanka,” BioMed Research International, vol. 2019, Article ID 4060426, 9 pages, 2019. https://doi.org/10.1155/2019/4060426.
• Rathnayake, N., Alwis, G., Lenora, J. and Lekamwasam, S., 2020. Applicability of health promoting lifestyle profile-II for postmenopausal women in Sri Lanka; a validation study. Health and Quality of Life Outcomes, 18, pp.1-6. DOI: 10.1186/s12955-020-01371-7.
• Rathnayake, N., Alwis, G., Lenora, J., Mampitiya, I. and Lekamwasam, S., 2020. Effect of Health-Promoting Lifestyle Modification Education on Knowledge, Attitude, and Quality of Life of Postmenopausal Women. BioMed Research International, 2020. https://doi.org/10.1155/2020/3572903.
• Rathnayake, N., Alwis, G., Lenora, J Lekamwasam, S., Factors associated with measures of sarcopenia in pre and postmenopausal women. BMC Women's Health 21, 5 (2021). https://doi.org/10.1186/s12905-020-01153-9
• Lekamwasam, S., Abeygunasekara, T., Rathnayake, N., Liyanage, G. and Subasinghe, S., 2022. Age-dependent assessment thresholds to optimize patient care in a resourcelimited setting: an analysis based on the Sri Lankan FRAX model. Archives of Osteoporosis, 17(1), pp.1-7.

Full article Publications at other referred indexed journals
• Dasanayake, D.L.W., Ganewatta, S.M.T. & Rathnayaka, N., (2018). Knowledge and practices on birth preparedness and complication readiness among antenatal mothers; A study from southern province. Sri Lanka Journal of Obstetrics and Gynecology. 40(1), pp.25–29. doi: http://doi.org/10.4038/sljog.v40i1.7834.
• Gamage, N., Rathnayake, N. and Alwis, G., Knowledge and Perception of Falls among Community Dwelling Elderly: A Study from Southern Sri Lanka. Current Gerontology and Geriatrics Research, 2018.
• Rathnayake, N., Alwis, G., Lenora, J. and Lekamwasam, S., 2019. Cutoff values for the determination of sarcopenia and the prevalence of the condition in middle-aged women: A study from Sri Lanka. Ceylon Medical Journal, 64(1), pp.9–16. DOI: http://doi.org/10.4038/cmj.v64i1.8834.
• Gamage, N., Rathnayake, N. and Alwis, G., Prevalence and Associated Risk Factors of Falls among Rural CommunityDwelling Older People: A Cross-Sectional Study from Southern Sri Lanka," Current Gerontology and Geriatrics Research, vol. 2019, 10 pages, 2019. https://doi.org/10.1155/2019/2370796.
• Rathnayake, N., Lenora, J., Alwis, G. and Lekamwasam, S., “Prevalence and Severity of Menopausal Symptoms and the Quality of Life in Middle-aged Women: A Study from Sri Lanka,” Nursing Research and Practice, vol. 2019, Article ID 2081507, 9 pages, 2019. https://doi.org/10.1155/2019/2081507.
• Rathnayake, N., Alwis, G., Lenora, J., and Lekamwasam, S. Development and Cross-Validation of Anthropometric Predictive Equations to Estimate Total Body Fat Percentage in Adult Women in Sri Lanka. Journal of Obesity, 2020 https://doi.org/10.1155/2020/2087346.
• Rathnayake, N., Alwis, G., Lenora, J. and Lekamwasam, S., 2020. Optimal Cutoff Values for Anthropometric Adiposity Measures of Sri Lankan Adult Women. Journal of Obesity, 2020. https://doi.org/10.1155/2020/5748720.
• Rathnayake, N., Alwis, G., Lenora, J., Mampitiya, I. and Lekamwasam, S., 2021. Linguistic and psychometric validation of Sinhala version of Menopause Specific Quality of Life questionnaire. Sri Lanka Journal of Social Sciences, 44(1), pp.15–26. DOI: http://doi.org/10.4038/sljss.v44i1.7959.
• Rathnayake, N. and Lekamwasam, S., 2021. Prevalence and factors associated with recurrent falls among middle-aged community-dwelling women. Journal of frailty, sarcopenia and falls, 6(3), p.92.
• Madushani, U., Rathnayake, N. and Mampitiya, I. Knowledge and attitude on family planning practices among pregnant women attending antenatal clinics of Teaching Hospital Karapitiya, Sri Lanka, Journal of Health Sciences and Innovative Research. Vol. 2 No. 01 (2021)
• Rathnayake, N., Rathnayake, H. and Lekamwasam, S., 2022. Age-Related Trends in Body Composition among Women Aged 20–80 Years: A Cross-Sectional Study. Journal of Obesity, 2022.

Brief reports
• Rathnayake, N., Lekamwasam, S. and Rathnayake, H., 2021. Prediction of appendicular skeletal muscle mass of older women using anthropometry-based equations. Ceylon Medical Journal, 66(1).

Full article Publications at conference proceedings
• N Rathnayake, T Abeygunasekara, K de Silva, S Karunanayake, KG Imendra, Utilization pattern of Self Medication among Allied Health Undergraduates with focus on Knowledge and Attitudes, Professional Integration for a Secure Nation, Proceedings of KDU IRC 2016.
• N Rathnayake, J Lenora, G Alwis, S Lekamwasam. “Prevalence and associated social-reproductive determinants of menopausal symptoms among pre and postmenopausal women in Galle, Sri Lanka” Annual academic sessions of Open University of Sri Lanka, (2017, October).
• Nirmala Rathnayake, Sujeewa Hettihewa, Kalani Gunawardene and Imendra Kotapola Impact of emotional intelligence on academic performance of health science undergraduates: A systematic review. 1st Ruhuna Quality Assurance Sessions. University of Ruhuna, Sri Lanka (September 2021).
• N. Rathnayake, H. Peiris, S. Hettihewa, E. Weeratunga, & I. Kotapola. Satisfaction on the opportunities and employability skills received during the undergraduate period: A study of graduates of Allied Health Sciences Faculty in the University of Ruhuna, Sri Lanka. 2nd Ruhuna Quality Assurance sessions. University of Ruhuna (September 2022).

Published abstracts of oral presentations

2011
• N Rathnayake, SSP Warnakulasuriya, “Knowledge, Attitude and Practice of over-the-Counter Medications among the Students in University of Sri Jayewardenepura” at the National Conference on Public Health Innovation held at the National Institute of Health Sciences, Kalutara (2011, July) (Oral).


• 2015
• UGN Priyadarshani, G Alwis, N Rathnayake “Knowledge and Attitude on fall and related fractures among elderly” at the Annual Academic sessions, Galle Medical Association, Sri Lanka (2015) (Poster).
• NR Kuruppu, RP Abeywickrama, N Rathnayake. “Pain experience among surgical patients” at the Annual Academic sessions, Galle Medical Association, Sri Lanka (2015) (Poster).

2016
• N Rathnayake, S Lekamwasam, G Alwis, J Lenora. “Estimation of appendicular skeletal muscle mass with anthropometric measurements in healthy women”. 129th Anniversary International Medical Congress, Sri Lanka Medical Association (2016) (Poster).
• N Rathnayake, TUW Abeygunasekara, ADSS Karunanayake, KKPM de Silva, KG Imendra. “Utilization pattern of selfmedication among allied health undergraduates of University of Ruhuna” 9th International Research Conference, Kotalawela Defense University, Rathmalana, Sri Lanka (2016, September) (Oral).
• N Rathnayake, S Lekamwasam, G Alwis, J Lenora. “Prevalence of Obesity among healthy pre and postmenopausal women; Data from Southern Sri Lanka”. 9th International Research Conference, Kotalawela Defense University, Rathmalana, Sri Lanka (2016, September) (Oral).
• N Rathnayake, S Lekamwasam, G Alwis, J Lenora. “The influence of menopausal status on performance-based measures of physical functions in middle aged women”. 9th International Research Conference, Kotalawela Defense University, Rathmalana, Sri Lanka (2016, September) (Oral).
• UGN Priyadarshani, G Alwis, N Rathnayake. “Prevalence and Determinant of Falls among elderly”. 9th International Research Conference, Kotalawela Defense University, Rathmalana, Sri Lanka (2016, September) (Oral).
• PS Muthukuda , N Rathnayake, JAP Dhammika. “Prevalence of awareness and risk factors on pregnancy induced hypertension among first trimester primi mothers: A community based cross sectional study”. 3rd International Conference on Multidisciplinary Approaches, held by Faculty of Graduate studies, University of Sri Jayewardenepura, Sri Lanka (2016, October) (Poster).
• UGN Priyadarshani, G Alwis, N Rathnayake. “Perception on Falls among community dwelling elders: A study from Southern Sri Lanka”. 3 rd International Conference on Multidisciplinary Approaches, held by Faculty of Graduate studies, University of Sri Jayewardenepura, Sri Lanka (2016, October) (Oral).
• GM Sudarshani, N Rathnayake, CJ Wijesinghe. “Awareness and utilization pattern of well women clinic services by target women in a rural health unit”. Annual Academic Sessions of Faculty of Medicine, University of Ruhuna, Sri Lanka (2016) (Poster).
• S Senevirathne, N Rathnayake, J Lenora. “Prevalence, Severity and risk factors of urogyneacological symptoms among postmenopausal women: a community based cross sectional survey”. Annual Academic Sessions of Faculty of Medicine, University of Ruhuna, Sri Lanka (2016) (Poster).
• W Munasinghe, N Rathnayake, PGCL Nanayakkara. “Impact of sociodemographic and clinical factors on quality of life of breast cancer survivors” Annual Academic Sessions of Faculty of Medicine, University of Ruhuna, Sri Lanka (2016, November) (Oral).
• SMT Ganewatta, N Rathnayake, L Dasanayake. “Knowledge and Practice on birth preparedness and complication readiness among antenatal mothers: a study from southern Sri Lanka”. Annual Academic Sessions of Faculty of Medicine, University of Ruhuna, Sri Lanka (2016) (Poster).
• N Rathnayake, S Lekamwasam, G Alwis, J Lenora. “Impact of menopausal symptoms on quality of life of premenopausal and postmenopausal women”. Annual Academic Sessions of Physiological Society of Sri Lanka (2016) (Poster).
• NR Kuruppu, N Rathnayake, R Abeywickrama. “Pain experience and satisfaction with pain management among postoperative patients; data from Southern Sri Lanka”. Annual Academic Sessions of Physiological Society of Sri Lanka (2016) (Poster).
• N Rathnayake, S Lekamwasam, G Alwis, J Lenora. “Association of appendicular skeletal muscle mass with performance-based and self-reported physical functions among middle aged healthy women”. Annual Academic Sessions of Physiological Society of Sri Lanka (2016, November) (Oral).
• N Rathnayake, S Lekamwasam, G Alwis, J Lenora. “Age-related trends in total and regional bone mineral densities of middleaged women: A study from Sri Lanka”. 6th Asia Pacific Scientific Meeting of International Osteoporosis Foundation held at Singapore (2016, November) (Abstract published online at Osteoporosis International Journal Supplements) (Poster).
• N Rathnayake, S Lekamwasam, G Alwis, J Lenora. “Associations between appendicular skeletal muscle mass and anthropometric measures among middle-aged women: A study from Sri Lanka”. 6th Asia Pacific Scientific Meeting of International Osteoporosis Foundation held at Singapore (2016, November) (Abstract published online at Osteoporosis International Journal Supplements) (Poster).
• N Rathnayake, S Lekamwasam, G Alwis, J Lenora. “Age related differences in lean mass and physical functions among middleaged women in Southern Sri Lanka: A study from Sri Lanka”. 6th Asia Pacific Scientific Meeting of International Osteoporosis Foundation held at Singapore (2016, November) (Abstract published online at Osteoporosis International Journal Supplements) (Poster).

2017
• N Rathnayake, G Alwis, J Lenora, S Lekamwasam. “Do anthropometric indices predict the Bone Mineral Density of pre and postmenopausal women?”. World congress on Osteoporosis, Osteoarthritis and Musculoskeletal diseases which was held on Florence, Italy (2017) (Abstract published online at Osteoporosis International Journal Supplements) (Poster).
• N Rathnayake, G Alwis, J Lenora, S Lekamwasam, “Comparison of association between appendicular skeletal muscle mass and bone mineral densities at different sites of pre and postmenopausal women”. World congress on Osteoporosis, Osteoarthritis and Musculoskeletal diseases which was held on Florence, Italy (2017) (Abstract published online at Osteoporosis International Journal Supplements) (Poster).
• N Rathnayake, G Alwis, J Lenora, S Lekamwasam “Development and cross validation of two predictive models to estimate the Appendicular Skeletal Muscle Mass in adult women in Sri Lanka”. World congress on Osteoporosis, Osteoarthritis and Musculoskeletal diseases which was held on Florence, Italy (2017) (Abstract published online at Osteoporosis International Journal Supplements) (Poster).
• N Rathnayake, G Alwis, J Lenora, S Lekamwasam “Associations of measures of sarcopenia among middle aged women with focus on their age and menopausal status”. World congress on Osteoporosis, Osteoarthritis and Musculoskeletal diseases which was held on Florence, Italy (2017) (Abstract published online at Osteoporosis International Journal Supplements) (Poster).
• N Rathnayake, G Alwis, J Lenora, S Lekamwasam “Concordance between measured and estimated Appendicular Skeletal Muscle Mass with Models developed in the West and Asia: What is the best for Sri Lankan adult women?”. World congress on Osteoporosis, Osteoarthritis and Musculoskeletal diseases which was held on Florence, Italy (2017) (Abstract published online at Osteoporosis International Journal Supplements) (Poster).
• N Nawarathna, N Rathnayake, B Perera. “Health promoting behaviors and related factors among teenagers in Welimada Educational Zone” Annual academic sessions of Galle Medical Association (2017) (Poster).
• DLW Dasanayake, SMT Ganewaththa, N Rathnayake. “Knowledge and practices on birth preparedness and complication readiness among antenatal mothers; a study from southern Sri Lanka” 10th International Research Conference, Kotalawela Defense University, Rathmalana, Sri Lanka (2017, September) (Oral).
• N Rathnayake, J Lenora, G Alwis, S Lekamwasam. “Impact of sociodemographic status on quality of life of selected group of pre and postmenopausal women in Galle, Sri Lanka”. 10th International Research Conference, Kotalawela Defense University, Rathmalana, Sri Lanka (2017, September) (Oral).
• UGN Priyadarshani, G Alwis, N Rathnayake. “Prevalence and Determinant of recurrent falls among ambulatory community dwelling elderly in Galle District Sri Lanka”. 10th International Research Conference, Kotalawela Defense University, Rathmalana, Sri Lanka (2017, September) (Oral).
• N Rathnayake, G Alwis, J Lenora, S Lekamwasam. “Normative reference values for measures of sarcopenia for Sri Lankan women”. International Research Conference of Peradeniya University (iPURSE), Sri Lanka (2017, November) (Oral).
• N Rathnayake, J Lenora, G Alwis, S Lekamwasam “Menopause Rating Scale-Cross cultural adaptation and psychometric validation of Sinhalese version” International Research Conference of Peradeniya University (iPURSE), Sri Lanka (2017, November) (Oral).

2018
• N Rathnayake, G Alwis, J Lenora, S Lekamwasam. “Prevalence of sarcopenia in a group of middle aged women from Galle, Sri Lanka” Annual academic sessions of University of Ruhuna, Sri Lanka, (2018) (Poster).
• N Rathnayake, G Alwis, J Lenora, S Lekamwasam “Impact of health promoting life style education intervention on knowledge, attitude and health promoting behaviors of postmenopausal women” Annual academic sessions, Galle Medical Association, Galle, Sri Lanka (2018, October) (Poster).
• AVP Chandrajeewa, N Rathnayake, G Alwis “Selection of Traditional bone setting treatments following fractures among patients attending ayurvedic treatments centres in Akuressa area”, 1st Research symposium, Faculty of Allied Health Sciences, University of Ruhuna (RuFARS), Galle, Sri Lanka, (2018, November) (Poster).
• N Rathnayake, G Alwis, J Lenora, S Lekamwasam. “Impact of nutrients on measures of sarcopenia among pre and postmenopausal women in Galle, Sri Lanka”. Annual academic sessions of Nutrition Society of Sri Lanka, (2018, January) (Oral).
• N Rathnayake, J Lenora, G Alwis, S Lekamwasam. “Impact of life style modification education intervention on menopausal symptoms and menopause specific quality of life of postmenopausal women” 1st Nursing congress of University of Peradeniya, Sri Lanka (2018, April) (Oral).
• N Rathnayake, J Lenora, G Alwis, S Lekamwasam. “Cross cultural adaptation and psychometric properties analysis of Sinhala version of Menopause Specific Quality of Life Questionnaire – A validation study” 4th Global public health conference held in Sri Lanka (2018, June) (Oral).
• N Rathnayake, G Alwis, J Lenora, S Lekamwasam, “Impact of health promoting life style education intervention on healthrelated quality of life of postmenopausal women”, Annual academic sessions, Galle Medical Association, Galle, Sri Lanka (2018, October) (Oral).
• N Rathnayake, G Alwis, J Lenora, S Lekamwasam. Impact Of Health Promoting Lifestyle Modification Education Intervention On Anthropometric Adiposity Measures And Physical Performance Of Postmenopausal Women”. 1st Research symposium, Faculty of Allied Health Sciences, University of Ruhuna (RuFARS), Galle, Sri Lanka, (2018, November) (Oral).
• LKN Chathuranga, N Rathnayake, J Lenora. “Why do Allied health undergraduates and graduates move towards the unrelated professions; A study focused to University of Ruhuna”, 1st Research symposium, Faculty of Allied Health Sciences, University of Ruhuna (RuFARS), Galle, Sri Lanka, (2018, November) (Oral).
• N Rathnayake, G Alwis, J Lenora, S Lekamwasam. “Impact of physical activity pattern on quality of life of pre and postmenopausal women; a cross-sectional study” Annual Academic Sessions of Faculty of Medicine, University of Ruhuna, (FMAS) Galle, Sri Lanka, (2018, November) (Oral).
• N Rathnayake, G Alwis, J Lenora, S Lekamwasam. “Validation of Sinhala version of Health Promoting Lifestyle Profile-II for postmenopausal women in Sri Lanka”. Annual Academic Sessions of Annual Academic Sessions of Physiological Society of Sri Lanka (2018) (Oral).

2019
• N Rathnayake, G Alwis, J Lenora, S Lekamwasam, “Delayed peak bone mineral density in women in Sri Lanka; A cross sectional study, Proceedings of 25th Annual Scientific Meeting of The International Society for Clinical Densitometry, Malaysia (2019, March) (Poster).
• N Rathnayake, G Alwis, J Lenora, S Lekamwasam, “Impact of menopause on measures of sarcopenia in middle-aged Sri Lankan women; A cross-sectional study, 25th Annual Scientific Meeting of The International Society for Clinical Densitometry, Malaysia (2019, March) (Poster).
• N Rathnayake, G Alwis, J Lenora, S Lekamwasam, “Association between bone mineral density and body composition – a study involving in pre and postmenopausal women, Annual Academic Sessions of Faculty of Medicine, University of Ruhuna, (FMAS) Galle, Sri Lanka, (2019, August) (Poster).
• N Rathnayake, G Alwis, J Lenora, S Lekamwasam, “Prevalence of Generalized and Central Obesity in a Group of Pre and Postmenopausal Women in Galle, 16th Annual academic sessions of University of Ruhuna, Sri Lanka, (2019, March) (Oral).
• N Rathnayake, G Alwis, J Lenora, S Lekamwasam, “Association between bone mineral density and cardiovascular disease risk in pre and postmenopausal women, 132nd anniversary International Medical Congress, Sri Lanka Medical Association (2019, July) (Oral).
• N Rathnayake, G Alwis, J Lenora, S Lekamwasam. “Impact of a health promoting lifestyle education intervention on cardiovascular disease risk indicators in postmenopausal women” 12th International Research Conference, Kotelawala Defence University, Sri Lanka (2019, September) (Oral).
• G Nilmini, A Chandrasiri, N Rathnayake. “Satisfaction on time allocation for different aspects of service provisions among public health midwives in selected MOH areas in Galle District; Sri Lanka”. 24th Annual academic sessions of the College of Community Physicians of Sri Lanka (2019, September) (Oral).
• N Rathnayake, S Lekamwasam, G Alwis, J Lenora. “Falls among middle-aged community dwelling women in a rural territory of Sri Lanka”. 1st World Congress on Falls and Postural Stability, Kuala Lampur, Malaysia (December 2019) (published as supplements of Age and Aging Journal) (Oral).
• N Rathnayake, S Lekamwasam, G Alwis, J Lenora. “Factors associated with hand grip strength of a group of pre and postmenopausal women from Sri Lanka”. 1st World Congress on Falls and Postural Stability, Kuala Lampur, Malaysia (December 2019) (published as supplements of Age and Aging Journal) (Oral).
• N Rathnayake, G Alwis, J Lenora, S Lekamwasam. Optimal Cutoff values for anthropometric adiposity measures of Sri Lankan adult women”. 2nd Research symposium, Faculty of Allied Health Sciences, University of Ruhuna (RuFARS), Galle, Sri Lanka, (2019, December) (Oral).

2020
• N Rathnayake, G Alwis, J Lenora, S Lekamwasam. “Relationship between Pattern of Physical Activity and Bone Mineral Density, Bone Mineral Content in a Group of Postmenopausal Women in Sri Lanka” 17th Annual academic sessions of University of Ruhuna, Sri Lanka, (2020, March) (Poster).
• Madushani S.H.U., Rathnayake N., Mampitiya I. “Knowledge and Attitude on Family Planning Practices among Antenatal Mothers Attending Teaching Hospital, Mahamodara, Sri Lanka”, 3 rd Annual Research Symposium of Faculty of Allied Health Sciences, University of Ruhuna, Sri Lanka (RuFARS, 2020, October) (Poster).
• Kumari K.D.S.S., Rathnayake N., Kularathne S. “Knowledge and Attitude about Human Papilloma Virus, Vaccination and Pap-Test among Female Undergraduates of University of Ruhuna” 3 rd Annual Research Symposium of Faculty of Allied Health Sciences, University of Ruhuna, Sri Lanka (RuFARS, 2020, October) (Poster).
• N Rathnayake, G Alwis, J Lenora, S Lekamwasam. “Development and Cross-validation of Anthropometric Predictive Equations to Estimate Total body fat percentage in Adult Women in Sri Lanka” 17th Annual academic sessions of University of Ruhuna, Sri Lanka, (2020, March) (Oral).
• N Rathnayake, G Alwis, J Lenora, S Lekamwasam. “Effect of parity and breast feeding duration on measures of sarcopenia in women aged 40-60 years: a community-based cross-sectional study” Annual Academic Sessions of Faculty of Medicine, University of Ruhuna, (FMAS) Galle, Sri Lanka, (2020, September) (Oral).
  
  2021
• N Rathnayake, C Lokanwaththa, S Lekamwasam “Fear of COVID-19 among people living in high-risk zones in Sri Lanka; Preliminary data” 18th Academic Sessions, University of Ruhuna Sri Lanka (2021, March) (Oral).
• S Lekamwasam, T Abeygunasekara, S Subasinghe, N Rathnayake, G Liyanage “Application of age dependent intervention thresholds to optimize DXA usage in a resource constrained country”, World congress on Osteoporosis, Osteoarthritis and Musculoskeletal Disorders, (2021 Virtual) (Poster).
• R Lekamwasam, B Lekamwasam, T Abeygunasekara, N Rathnayake, “Admission of hip fracture patients during COVID19: A systematic review”, World congress on Osteoporosis, Osteoarthritis and Musculoskeletal Disorders, (2021 Virtual) (Poster).
• HK Dias, N Rathnayake, T Abeygunasekara, S Lekamwasam, Burden on caregivers of hip fracture survivors: A systematic review” World congress on Osteoporosis, Osteoarthritis and Musculoskeletal Disorders, (2021 Virtual) (Poster).
• N Rathnayake, S Lekamwasam, T Abeygunasekara, G Liyanage, S Subasinghe. “Variability of Sarcopenia cutoff values among women: A systematic review, World congress on Osteoporosis, Osteoarthritis and Musculoskeletal Disorders (2021 Virtual) (Oral and Poster).
• N Rathnayake, T Abeygunasekara, Warsha De Zoysa, D Palangasinghe, S Lekamwasam “Psychometric properties of Sinhala version of Burden Scale for Family Caregivers short form (BSFC-s); a validation study in Sri Lanka, 14th International Research Conference, Kotelawala Defense University, Sri Lanka (September 2021) (Oral).

2022
• SMTD Sundarapperuma, MWK Gamage, RHMPN Rathnayake, SMEB Weeratunga, HJH Madushanthi, “Psychological disturbances and associated factors among professionals and general public during COVID-19 pandemic in Sri Lanka” 19th Academic sessions, University of Ruhuna 2022 (Oral).
• H Dias, N Rathnayake, T Abeygunasekara, S Lekamwasam. Effect of frailty on clinical outcomes of hip fracture patients ESECO 2022 world congress (Poster-virtual).
• N Rathnayake, T Abeygunasekara, W De Zoysa, D Palangasinghe, S Lekamwasam. Katz index of activities of daily living in assessing functional status of older people; reliability and validity of Sinhala version. Sri Lanka Association of Geriatric Medicine Annual Congress (SLAGM). 2022 (Oral).
• R Karunadasa, N Rathnayake, S Lekamwasam. Performancebased and self-reported physical functions among community dwelling older adults from a rural community in Sri Lanka. Sri Lanka Association of Geriatric Medicine Annual Congress (SLAGM). 2022 (Oral).
• Karunadasa R., Rathnayake N. Performance-Based and SelfReported Physical Functions and Associated Co-Morbidity among Community Dwelling Older People in Embilipitiya MOH Area. 5 th Annual Research Symposium of Faculty of Allied Health Sciences, University of Ruhuna, Sri Lanka (RuFARS, 2022, August) (Poster).
• Kandambi S.B.M., Rathnayake N. Menopause specific quality of life of post-menopausal women in Kotapola Medical Officer of Health area. 5 th Annual Research Symposium of Faculty of Allied Health Sciences, University of Ruhuna, Sri Lanka (RuFARS, 2022, August) (Oral).
• Jothirathna J.B.C.L1 , Warushahennadi J.2 , Rathnayake N Knowledge on medico-legal and ethical duties related to child abuse, among pediatric nursing officers: a descriptive crosssectional study. 5 th Annual Research Symposium of Faculty of Allied Health Sciences, University of Ruhuna, Sri Lanka (RuFARS, 2022, August) (Oral).

Other publications

• Newsletter articles
• Graduate Nurses Foundation annual newsletter article (2019) on “Postmenopausal health promotion by nurses”.
• Graduate Nurses Foundation annual newsletter article (2020) on “Understanding menopausal symptoms and quality of life of women after menopause”.


• Books
• ආර්තවහරණය - මේ මවනසකට කාලයයි - a hand book for postmenopausal health management (2020).


• Book chapters
• Nursing care for the older patients with musculoskeletal disorders. Musculoskeletal bulletin, published by Sri Lanka Association of Geriatric Medicine. ISSN: 2673-1274. Volume 4, Issue 1 March 2021.

Membership of professional associations

• Graduate Nurses Foundation
• Sri Lankan Association of Geriatric Medicine