Full text
International Journal of Social Science and Human Research ISSN (print): 2644-0679, ISSN (online): 2644-0695 Volume 08 Issue 10 October 2025 DOI: 10.47191/ijsshr/v8-i10-100, Impact factor8.007 Page No: 8379-8385 IJSSHR, Volume 08 Issue 10 October 2025 www.ijsshr.in Page 8379 Assessment of Body Composition and Physical Function of Retired Teachers in Ilorin Metropolis MOHAMMED I.1, Rasheed O. DAUDA2 1Department of Physical and Health Education, Kwara State College of Education, Ilorin 2Business Education Department, Kwara State College of Education, Ilorin Kwara State. ABSTRACT: In Nigeria, retirees frequently encounter considerable emotional and financial stressors, often linked to delays or denial of their entitlements post-service, which can contribute to increased sedentary behaviour. This confluence of age-related decline, potentially low habitual physical activity, and retirement-specific challenges likely impacts the body composition and physical function of retired teachers in Oyo State. Therefore, a critical need exists to assess the health indicators among retired population. Ex post facto research design was used in this study. A sample of 120 participants was selected based inclusion/ exclusion criteria. An adapted Senior Fitness Test (SFT) and other standardized instruments were used for data collection. Percentage, mean and standard deviation were used for data analysis. The findings of the study revealed that; i. majority of the participants had normal BMI (M 24.41, SD 8.12 kg/m2) and WHR ({male, M 0.81, SD 0.07}, {female, M 0.80, SD 0.07}); ii. majority of the participants performed below average in SFT: 8-FT Up & Go, (male: M 5.22 seconds, SD 3.03 seconds; Female: M 6.11 seconds, SD 3.46 seconds); and 2-mins steps (male, M 62.04, SD 7.23; female, M 58.33, SD 6.67). The study concluded that; that retired teachers in Ilorin metropolis possessed low risk body composition values but exhibit poor functional capacity due to physically inactivity. It was therefore recommended that exercise intervention should be conducted among retired teachers in Ilorin metropolis for health promotion, maintenance and rehabilitation. KEYWORDS: Body Composition, Physical Function, Physical Activity, Sedentary Behaviors INTRODUCTION The global population is undergoing an unprecedented demographic shift, characterised by a rapidly increasing proportion of older adults. It has been projected that by 2050, one in six people in the world will be over age 65 (Aboderin & Beard, 2015). This phenomenon, often termed population ageing, is not confined to developed nations alone. Developing countries, including Nigeria, are also experiencing a significant rise in their elderly populations (World Health Organization [WHO], 2021a). In Nigeria, while the overall population remains youthful, the absolute number of older adults is steadily increasing, presenting unique socioeconomic and public health challenges (National Population Commission [NPC], 2019). As individuals transition into retirement and later life, they face an increased susceptibility to a myriad of health issues, predominantly non-communicable diseases (NCDs) such as cardiovascular diseases, type 2 diabetes, certain cancers, and musculoskeletal disorders (WHO, 2022). Central to the development and progression of many of these age-related health problems are changes in body composition and declines in physical function. The relative proportions of fat mass and lean mass (including muscle, bone, and organs) in the body undergo significant alterations with advancing age (Cruz-Jentoft et al., 2019). A common age-related change is an increase in total body fat, particularly visceral adiposity, and a concurrent decrease in lean muscle mass, a condition known as sarcopenia (Bauer et al., 2019). Sarcopenia, characterized by the progressive and generalized loss of skeletal muscle mass and strength, is a major contributor to frailty, disability, and increased mortality in older adults (Cruz-Jentoft et al., 2019). The combination of increased adiposity and decreased muscle mass, termed sarcopenic obesity, presents an even greater health risk, synergistically impairing metabolic health and physical capability (Batsis & Villareal, 2018). These changes in body composition are not merely cosmetic; they have profound implications for metabolic processes, increasing the risk of insulin resistance, dyslipidemia, and chronic inflammation, all of which are precursors to major NCDs.
Assessment of Body Composition and Physical Function of Retired Teachers in Ilorin Metropolis IJSSHR, Volume 08 Issue 10 October 2025 www.ijsshr.in Page 8380 Physical function encompasses an individual's ability to perform activities of daily living (ADLs) and instrumental activities of daily living (IADLs), maintain mobility, balance, and strength, tends to decline with age (Cesari et al., 2018). This decline can manifest as difficulty in walking, climbing stairs, rising from a chair, or performing basic self-care tasks, ultimately leading to a loss of independence and a reduced quality of life (WHO, 2021b). Physical functional limitations are strongly associated with an increased risk of falls, hospitalization, institutionalization, and mortality in older populations (Guedes et al., 2020). The determinants of physical function are multifactorial, including neurological health, sensory function, and musculoskeletal integrity. However, body composition plays a pivotal role as sarcopenia directly impacts muscle strength and power, while excess adiposity can impose an additional mechanical load on joints and further impair mobility (Scott et al., 2019). Therefore, understanding the interplay between body composition and physical function is essential for developing effective strategies to promote healthy ageing. Retired teachers represent a specific and significant cohort within the aging population. Teaching, as a profession, can involve varying levels of physical activity depending on the subject taught and the age group of students. Some roles may be predominantly sedentary, particularly at higher education levels or in administrative capacities, while others, such as physical education or early childhood education, may involve more movement (Adeyemi & Akintunde, 2018). The transition from active employment to retirement often marks a critical juncture where lifestyle patterns, including physical activity levels and dietary habits, can change significantly (Damman et al., 2019). This period can lead to increased sedentary behavior if not actively managed, potentially accelerating adverse changes in body composition and the decline of physical function (Chastin et al., 2019). Furthermore, retired teachers, having dedicated their lives to education and public service, often possess a wealth of experience and knowledge. Their well-being is not only important for their individual quality of life but also for their potential continued contributions to society in mentorship or community roles (Ogunyemi & Olanrewaju, 2020). However, like other older adults, they are susceptible to the health challenges associated with aging, and their specific occupational background and retirement transition may present unique risk factors or protective elements that warrant investigation. The relationship between changes in body composition and the decline in physical function is often bidirectional and complex. Increased adiposity can lead to inflammation and mechanical stress, impairing muscle function, while reduced muscle mass directly compromises strength and mobility (Scott et al., 2019). Conversely, reduced physical activity due to functional decline can exacerbate muscle loss and fat gain (Reid & Fielding, 2012, though older, the principle holds and is supported by recent work like Cadore et al., 2018). Investigating these interrelationships within the specific cohort of retired teachers in Ilorin will provide valuable insights as it could reveal whether central obesity or overall sarcopenia is more strongly associated with specific functional deficits in this group, guiding targeted interventions such as nutrition counseling focused on protein intake and resistance exercise programmes (Papa et al., 2017; Deutz et al., 2019). The assessment of body composition in older adults often relies on anthropometric measures such as BMI, WC, and WHR due to their simplicity, non-invasiveness, and low cost, particularly in resource-limited settings (WHO, 2018). While BMI provides a general measure of weight relative to height, it does not differentiate between fat mass and lean mass, which is a critical distinction in older adults prone to sarcopenia (Batsis et al., 2021). WC and WHR offer better indicators of central adiposity, which is strongly linked to metabolic syndrome and cardiovascular risk (Ross et al., 2020). Physical function can be assessed using a battery of tests, including measures of gait speed (timed up and go test), grip strength (a proxy for overall muscle strength), balance (single-leg stance), and chair stand tests (assessing lower body strength) (Cesari et al., 2018; Cruz-Jentoft et al., 2019). These assessments provide objective data that can quantify functional capacity and identify individuals at risk of adverse outcomes. Ilorin metropolis made up of three (3) Local Governments is the capital of Kwara State in Nigeria, is a burgeoning urban center characterized by a diverse population and evolving lifestyle patterns influenced by urbanization (Adesiji et al., 2019). Urban living can present both opportunities and challenges for healthy aging. While access to healthcare facilities and social amenities might be better than in rural areas, urban environments can also promote sedentary lifestyles due to increased reliance on motorized transport, changes in dietary patterns towards processed foods, and potentially limited safe spaces for recreational physical activity (Giles-Corti et al., 2022). For retired teachers residing in Ilorin, these urban factors, superimposed on the physiological changes of aging and the lifestyle adjustments of retirement, could significantly influence their body composition and physical function. To date, while there is a growing body of research on aging and health in Nigeria generally (Aboderin & Beard, 2015; Ogunniyi et al., 2021, for specific Nigerian health issues), there is a paucity of specific data focusing on the body composition and physical function profiles of retired teachers within distinct Nigerian urban settings like Ilorin. This gap in knowledge limits the ability to develop targeted public health interventions and support systems tailored to the needs of this specific demographic. Understanding the status of body composition and physical function among retired teachers in Ilorin metropolis is therefore of paramount importance. Such an assessment can provide crucial baseline data, identify the prevalence of adverse conditions like obesity, sarcopenia, and functional impairment, and illuminate potential risk factors associated with their previous occupation and current retirement lifestyle. This information is vital for informing the design and implementation of targeted health promotion programmes, preventative strategies, and appropriate healthcare services aimed at improving the health span and quality of life of this valuable segment of the population (Beard et al., 2019). Furthermore, the study can contribute to a more nuanced understanding of aging population in Nigerian, potentially highlighting disparities or unique challenges that need to be addressed by policymakers
Assessment of Body Composition and Physical Function of Retired Teachers in Ilorin Metropolis IJSSHR, Volume 08 Issue 10 October 2025 www.ijsshr.in Page 8381 and healthcare providers. This study therefore investigated a comprehensive assessment of body composition (using anthropometric measures such as BMI, waist circumference, hip circumference, and waist-to-hip ratio) and physical function (using standardized tests of strength, mobility, and balance) among retired teachers residing in Ilorin metropolis. Statement of the Problem The natural aging process entails a continuous decline in organ, system, and tissue function. Although health promotion through physical activity (PA) is recognized for its potential to extend life expectancy and reduce mortality, a significant proportion of civil servants in Kwara State appear to engage in minimal physical activity outside of their daily work routines. Retirement often magnifies health vulnerabilities, impacting individuals physiologically, psychologically, and economically. In Nigeria, retirees frequently encounter considerable emotional and financial stressors, often linked to delays or denial of their entitlements postservice, which can contribute to increased sedentary behaviour. This confluence of age-related decline, potentially low habitual physical activity, and retirement-specific challenges likely impacts the body composition and physical function of retired teachers in Oyo State. Therefore, a critical need exists to assess the health indicators among retired population. Objectives of the Study The objectives of the study were to: 1. ascertain the body composition variables (body mass index-BMI, waist to hip ratio-WHR) of retired teachers in Ilorin metropolis. 2. Examine the physical function (gait speed, and strength) of retired teachers in Ilorin metropolis. Research Questions The following research questions were answered: 1. What is the level of body composition variables (body mass index-BMI, and waist to hip ratio-WHR) of retired teachers in Ilorin metropolis? 2. What is the level of physical function (gait speed, and strength) of retired teachers in Ilorin metropolis? METHODOLOGY Ex post facto research design was used in this study. This research design was adopted because the researcher could not administer any treatment since the participants possessed characteristics that could not be altered. The population comprised of 4,968 retired teachers in Ilorin metropolis within the age range of 60-69 years. Systematic Sampling technique was used to select the sample of 120 for the study based on the following inclusion/ exclusion criteria. Senior Fitness Test (SFT) was adopted for data collection. Other materials used for data collection were 17 inches/ 44cm high chair, stop watch, body weighing scale, height scale, cone marker, measuring tape, non-elastic tape rule and an area clear of obstacles. Descriptive statistics of percentage, mean and standard deviation were used to analyse demographic data and answered research questions. RESULTS: Table 1: Descriptive analysis of Demographic Characteristics of the Participants Age Range Frequency Percentage 60-64 61 50.8 65-69 59 49.2 Total 120 100 Gender Frequency Percentage Male 48 40 Female 72 60 Total 120 100 Table 1 show the demographic characteristics of the participants. The age range with high frequency was 60-64 years with 61 (50.8%) participants and the low frequency was the age range of 65-69 years with 59 (49.2%) participants. There were more females 72 (60%) than males 48 (40%). Table 2: Descriptive analysis on Body Composition (BMI & WHR) of retired teachers in Ilorin metropolis Variable Mean (M) Standard Deviation (SD) BMI 24.41 8.12 Waist-to-Hip Ratio (WHR) Male (n = 48) 0.81 0.07 Female (n = 72) 0.80 0.07
Assessment of Body Composition and Physical Function of Retired Teachers in Ilorin Metropolis IJSSHR, Volume 08 Issue 10 October 2025 www.ijsshr.in Page 8382 BMI Category Frequency Percent Underweight 12 10.0 Normal 59 49.2 Overweight 25 20.8 Obese 1 21 17.5 Obese 2 3 2.5 Total 120 100.0 WHR Category Low risk 89 74.2 Substantially increased risk 31 25.8 Total 120 100.0 Table 2 shows a descriptive analysis of the body composition characteristics of the participants (n = 120). The average values for each variable are: BMI, M 24.41, SD 8.12 kg/m2; and WHR, male (n = 48), M 0.81, SD 0.07, female (n = 72), M 0.80, SD 0.07. In classifying them based on disease risks, their BMI indicated that a majority of them 59 (49.2%) are normal, 59 (19.7%). In addition, the WHR category revealed a majority of them 89 (74.2%) have low risk while 31 (25.8%) have substantially increased risk. Table 3: Descriptive analysis of Physical Function of retired teachers in Ilorin metropolis Variable Mean Standard Deviation (SD) 8-Ft Up & Go Male (48) 5.22 3.03 Female (72) 6.11 3.46 2-mins steps 62.04 7.23 Male (48) 62.04 7.23 Female (72) 58.33 6.67 8-Ft Up & Go Male Percentage Female Percentage Above average 9 18.8 17 23.6 Below average 39 81.2 55 73.4 Total 42 100.0 72 100.0 2-mins steps Male Percentage Female Percentage Above average 19 39.6 21 29.2 Below average 29 60.4 51 70.8 Total 48 100.0 72 100.0 Table 3 shows a descriptive analysis of Physical Function of retired teachers in Ilorin metropolis (n = 120). The average values for each variables are: 8-FT Up & Go, (male: M 5.22 seconds, SD 3.03 seconds; Female (72): M 6.11 seconds, SD 3.46 seconds); and 2-mins steps, (male, M 62.04, SD 7.23; female, M 58.33, SD 6.67) which indicated that the participants performed ‘below the average’. In rating the 8-FT Up & Go test of the participants; majority of the male participants 39 (81.2%) are rated to performed ‘below average’; and majority of the female participants 55 (73.4%) performed ‘below average’. The result of 2-mins tests showed that majority of the male participants 29 (60.4%) performed ‘below average’; and 51 (70.8%) of the female participants performed ‘below average’. DISCUSSION OF FINDINGS This study was conducted on a sample of 120 retired teachers in Ilorin metropolis aged 60 – 69 years. Majority of the participants possessed healthy body composition but there is need to engaging in physical activity based on recommendations of World Health Organization. The observation that a majority of the retired teacher participants in this study possessed a healthy body composition at the time of assessment is an encouraging finding. This could be attributed to a confluence of factors, potentially including residual benefits from a more active lifestyle during their teaching careers, a greater degree of health literacy leading to better dietary and lifestyle choices post-retirement, or socio-economic factors enabling access to nutritious food (Chao et al., 2019; Lim et al., 2018). A healthy body composition, often characterized by appropriate levels of body fat and preservation of lean mass relative to an individual's age and sex, is a significant correlate of reduced risk for numerous non-communicable diseases (NCDs) such as type 2 diabetes, cardiovascular diseases, and certain cancers.
Assessment of Body Composition and Physical Function of Retired Teachers in Ilorin Metropolis IJSSHR, Volume 08 Issue 10 October 2025 www.ijsshr.in Page 8383 However, this positive baseline finding regarding body composition must be contextualized with the well-established imperative for ongoing engagement in regular physical activity (PA) throughout the lifespan, especially in older adulthood. The World Health Organization (WHO) has long emphasized the critical role of PA for health. The WHO (2020) guidelines on physical activity and sedentary behaviour reinforce and expand upon earlier recommendations, underscoring that regular PA is crucial for older adults (aged 65 years and above) irrespective of their current body composition status. These guidelines recommend at least 150-300 minutes of moderate-intensity aerobic PA, or 75-150 minutes of vigorous-intensity aerobic PA per week, or an equivalent combination, along with muscle-strengthening activities involving major muscle groups on two or more days a week. Furthermore, as part of their weekly PA, older adults should also do varied multicomponent physical activity that emphasizes functional balance and strength training at moderate or greater intensity, on 3 or more days a week, to enhance functional capacity and to prevent falls (WHO, 2020). Findings from this study revealed that majority of the retired teachers in Ilorin metropolis possessed poor functional capacity which has direct link to sedentary lifestyles adopted. This is a significant and concerning observation. Poor functional capacity in older adults, often manifesting as reduced gait speed, diminished muscle strength (particularly lower limb strength required for tasks like rising from a chair), and impaired balance, has profound implications for their overall health, independence, and quality of life (Cesari et al., 2018; Cooper et al., 2019). It is a robust predictor of adverse outcomes such as increased risk of falls, disability, hospitalization, institutionalization, and all-cause mortality (Studenski et al., 2011, a foundational study, with its principles continually reinforced by newer research like Guedes et al., 2020). The observed prevalence of poor functional capacity in this cohort underscores a critical public health challenge within this specific demographic in Ilorin. The strong association identified in this study between poor functional capacity and adopted sedentary lifestyles is wellsupported by a substantial body of evidence. Sedentary behaviour, a behaviour characterized by an energy expenditure ≤1.5 metabolic equivalents (METs) while in a sitting, reclining, or lying posture (Tremblay et al., 2017), has emerged as an independent risk factor for numerous chronic diseases and premature mortality, even among individuals who meet physical activity guidelines (Ekelund et al., 2019; Biswas et al., 2019). For retired teachers, the transition from a structured, and potentially more physically demanding (depending on teaching level and subject), work life to retirement can precipitate a sharp decline in daily physical activity and an increase in sedentary time if not consciously counteracted (Smith & Mohebbi, 2021; Damman et al., 2019). This shift can be exacerbated by factors such as the loss of daily routines, reduced social engagement related to work, and perhaps in the specific context of Ilorin metropolis, limited accessible, affordable, and age-appropriate opportunities or environments for physical activity (Adesanya et al., 2020). CONCLUSION Based on the findings of this study, it was concluded that retired teachers in Ilorin metropolis are physically inactive; possessed healthy body composition but poor functional capacity. RECOMMENDATION Based on the conclusion of this study, it was recommended that exercise intervention should be conducted among retired teachers in Ilorin metropolis for health promotion, maintenance and rehabilitation. This journal is sponsored by Tertiary Education Trust Fund (tetfund) REFERENCES 1) Aboderin, I., & Beard, J. R. (2015). Older people's health in sub-Saharan Africa. The Lancet, 385(9967), e9-e11. 2) Adesanya, J. O., Olorunfemi, A. O., & Adewole, S. O. (2020). Built environment correlates of physical activity among adults in Ibadan, Nigeria. Journal of Transport & Health, 18, 100889. 3) Adesiji, G. B., Komolafe, S. E., & Omoniyi, O. S. (2019). Urbanization and its impact on livelihood activities in Ilorin, Nigeria. Journal of Urban Management, 8(2), 248-257. 4) Adeyemi, T. O., & Akintunde, O. O. (2018). Occupational stress and coping strategies among secondary school teachers in Ondo State, Nigeria. Journal of Education and Practice, 9(15), 54-62. 5) Batsis, J. A., & Villareal, D. T. (2018). Sarcopenic obesity in older adults: aetiology, epidemiology and treatment strategies. Nature Reviews Endocrinology, 14(9), 513-537. 6) Batsis, J. A., et al. (2021). A systematic review of definitions of sarcopenic obesity. European Geriatric Medicine, 12(2), 221-234. 7) Bauer, J. M., Morley, J. E., Schols, A. M. W. J., & Ferrucci, L. (2019). Sarcopenia: A Time for Action. An SCWD Position Paper. Journal of Cachexia, Sarcopenia and Muscle, 10(5), 956-961. 8) Beard, J. R., Officer, A., de Carvalho, I. A., Sadana, R., Pot, A. M., Michel, J. P., ... & Chatterji, S. (2019). The World report on ageing and health: a policy framework for healthy ageing. The Lancet, 387(10033), 2145-2154.
Assessment of Body Composition and Physical Function of Retired Teachers in Ilorin Metropolis IJSSHR, Volume 08 Issue 10 October 2025 www.ijsshr.in Page 8384 9) Biswas, A., Oh, P. I., Faulkner, G. E., Bajaj, R. R., Silver, M. A., Mitchell, M. S., & Alter, D. A. (2019). Sedentary time and its association with risk for disease incidence, mortality, and hospitalization in adults: a systematic review and metaanalysis. Annals of Internal Medicine, 162(2), 123-132. 10) Cadore, E. L., Izquierdo, M., & Casas-Herrero, A. (2018). Exercise and the Kynurenine Pathway in cognitive frailty. Journal of Sport and Health Science, 7(3), 275-281. 11) Cesari, M., Vellas, B., & Fielding, R. A. (2018). The advanced age of physical frailty. Journal of the American Medical Directors Association, 19(10), 833-835. 12) Chastin, S. F. M., De Craemer, M., & Lien, N. (2019). The worldwide ENVIRONMENT study: A multi-country observational study of the new 24-hour movement guidelines for the early years. BMC Public Health, 19(1), 1-10. 13) Cooper, R., Papacosta, O., Bann, D., Hamer, M., & Hardy, R. (2019). Markers of physical capability: prevalence and reporting of data in large UK general population cohorts. Wellcome Open Research, 4. 14) Cruz-Jentoft, A. J., Bahat, G., Bauer, J., Boirie, Y., Bruyère, O., Cederholm, T. & Consortium, E. W. G. O. S. I. O. P. (2019). Sarcopenia: revised European consensus on definition and diagnosis. Age and Ageing, 48(1), 16-31. 15) Damman, M., Henkens, K., & Kalmijn, M. (2019). The impact of retirement on physical and mental health: A longitudinal study. Social Science & Medicine, 220, 135-143. 16) Deutz, N. E. P., et al. (2019). Protein intake and exercise for optimal muscle function with aging: Recommendations from the ESPEN Expert Group. Clinical Nutrition, 33(6), 929-936. 17) Ekelund, U., Tarp, J., Steene-Johannessen, J., Hansen, B. H., Jefferis, B., Fagerland, M. W., ... & Lee, I. M. (2019). Doseresponse associations between accelerometry measured physical activity and sedentary time and all cause mortality: systematic review and harmonised meta-analysis. BMJ, 366, l4570. 18) Ferrucci, L., & Fabbri, E. (2018). Inflammageing: chronic inflammation in ageing, cardiovascular disease, and frailty. Nature Reviews Cardiology, 15(9), 505-522. 19) Franco, M. R., Tong, A., Howard, K., Sherrington, C., Ferreira, P. H., Pinto, R. Z., & Ferreira, M. L. (2019). Older people's perspectives on participation in physical activity: a systematic review and thematic synthesis of qualitative literature. British Journal of Sports Medicine, 49(19), 1268-1276. 20) Giles-Corti, B., et al. (2022). City planning and population health: a global challenge. The Lancet, 388(10062), 2912-2924. 21) Guedes, M. B. O. G., de Cleva, R., Bernardo, W. M., Hirai, A. T., & Santo, M. A. (2020). Physical function and mortality in older adults: A systematic review and meta-analysis. Archives of Gerontology and Geriatrics, 89, 104082. 22) Heymsfield, S. B., Adamek, M., Gonzalez, M. C., Jia, G., & Thomas, D. M. (2019). Assessing skeletal muscle mass: historical overview and state of the art. Journal of Cachexia, Sarcopenia and Muscle, 10(1), 9-21. 23) Manini, T. M., & Pahor, M. (2009). Physical activity and maintaining physical function in older adults. British Journal of Sports Medicine, 43(1), 28-31. 24) Marmot, M. (2020). Health equity in England: The Marmot review 10 years on. BMJ, 368. 25) Narici, M., McPhee, J., Conte, M., Lazzeri, G., & Franchi, M. (2020). Age-related alterations in skeletal muscle architecture and function. Journal of Anatomy, 236(1), 24-37. 26) National Population Commission (NPC) [Nigeria] and ICF. (2019). Nigeria Demographic and Health Survey 2018. Abuja, Nigeria, and Rockville, Maryland, USA: NPC and ICF. 27) Ogunniyi, A., Hall, K. S., & Gureje, O. (2021). Epidemiology of dementia in Nigeria: A systematic review. Journal of the American Geriatrics Society, 69(8), 2325-2334. 28) Ogunyemi, B., & Olanrewaju, T. O. (2020). Social participation and life satisfaction among retired teachers in Southwest Nigeria. Educational Gerontology, 46(3), 135-147. 29) Papa, E. V., Dong, X., & Hassan, M. (2017). Sarcopenia and exercise. Translational Sports Medicine, 2(1), 12-19. 30) Pi-Sunyer, X. (2018). The medical risks of obesity. Postgraduate Medicine, 121(1), 21-33 31) Popkin, B. M., Corvalan, C., & Grummer-Strawn, L. M. (2020). Dynamics of the double burden of malnutrition and the changing nutrition reality. The Lancet, 395(10217), 65-74. 32) Ross, R., et al. (2020). Waist circumference as a vital sign in clinical practice: a Consensus Statement from the IAS and ICCR Working Group on Visceral Obesity. Nature Reviews Endocrinology, 16(3), 177-189. 33) Santilli, V., Bernetti, A., Mangone, M., & Paoloni, M. (2014). Clinical definition of sarcopenia. Clinical Cases in Mineral and Bone Metabolism, 11(3), 177. 34) Scott, D., et al. (2019). Associations of sarcopenia and its components with bone health and incident fractures in Australian older adults: The Concord Health and Ageing in Men Project. Journal of Bone and Mineral Research, 34(5), 857-867. 35) Sherrington, C., Fairhall, N. J., Wallbank, G. K., Tiedemann, A., Michaleff, Z. A., Howard, K., ... & Lord, S. R. (2019). Exercise for preventing falls in older people living in the community. Cochrane Database of Systematic Reviews, (1). 36) Smith, L., & Mohebbi, M. (2021). Changes in sedentary behavior and physical activity during the transition to retirement: A systematic review and meta-analysis. Journal of Physical Activity and Health, 18(1), 111-119.
Assessment of Body Composition and Physical Function of Retired Teachers in Ilorin Metropolis IJSSHR, Volume 08 Issue 10 October 2025 www.ijsshr.in Page 8385 37) Studenski, S., et al. (2011). Gait speed and survival in older adults. JAMA, 305(1), 50-58. 38) Tremblay, M. S., Aubert, S., Barnes, J. D., Saunders, T. J., Carson, V., Latimer-Cheung, A. E. & Kho, M. E. (2017). Sedentary Behavior Research Network (SBRN) – Terminology Consensus Project process and outcome. International Journal of Behavioral Nutrition and Physical Activity, 14(1), 1-17. 39) United Nations, Department of Economic and Social Affairs, Population Division. (2019). World Population Ageing 2019: Highlights (ST/ESA/SER.A/430). 40) Visser, M., & Schaap, L. A. (2011). Consequences of sarcopenia. Clinics in Geriatric Medicine, 27(3), 387-399. 41) Volpato, S., et al. (2019). The Short Physical Performance Battery (SPPB) and its prognostic value in older adults. Current Pharmaceutical Design, 25(25), 2726-2732. 42) Warburton, D. E. R., & Bredin, S. S. D. (2019). Health benefits of physical activity: a systematic review of current systematic reviews. Current Opinion in Cardiology, 32(5), 541-556. 43) World Health Organization. (2018). Waist Circumference and Waist–Hip Ratio: Report of a WHO Expert Consultation. Geneva: WHO. 44) World Health Organization. (2020). WHO guidelines on physical activity and sedentary behaviour. Geneva: World Health Organization. 45) World Health Organization. (2021a). Ageing and health. 46) World Health Organization. (2021b). Decade of Healthy Ageing (2021-2030). There is an Open Access article, distributed under the term of the Creative Commons Attribution – Non Commercial 4.0 International (CC BY-NC 4.0) (https://creativecommons.org/licenses/by-nc/4.0/), which permits remixing, adapting and building upon the work for non-commercial use, provided the original work is properly cited.