日足P&Fの状況：（06月30日）～（07月04日）

Background: Physical activity levels in childhood have decreased, making the promotion of children's physical activity an important issue. The present study examined gender and grade differences in objectively measured sedentary behavior, physical activity, and physical activity guideline attainment among Japanese children and adolescents.Methods: In total, 329 boys and 362 girls age 3-15 years completed the survey. School grade, gender, height, and weight were collected by questionnaires and physical activity objectively measured using an accelerometer (Lifecorder Suzuken Co.). Physical activity level (in MET) was classified as sedentary (1.5), light (= 1.5 to 3), moderate (= 3 to 6), or vigorous (= 6). Continuous zero accelerometer counts for = 20 min were censored and a valid accelerometry study required at least 3 days (2 weekdays and 1 weekend day) with 600 min/day total wear time. Two-way analysis of covariance and logistic regression analyses, adjusted for weight status and accelerometer wear time, were used to examine gender and grade differences in physical activity variables and the likelihood of physical activity guideline attainment by gender and grade level.Results: Participants were sedentary 441.4 (SD, 140.1) min/day or 53.7 % of the average daily accelerometer wear time of 811.2 (118.7) min, engaged in light physical activity 307.1 (70.0) min or 38.4 % of wear time, moderate physical activity 34.6 (14.8) min (4.3 %), vigorous physical activity 28.3 (19.1) min (3.6 %), and took 12462.6 (4452.5) steps/day. Boys were more physically active and took more steps/day than girls. Students in higher grades were less active than those in lower grades. Boys were significantly more likely to meet physical activity guidelines than girls (OR: 2.07, 95 % CI: 1.45-2.96). Preschoolers (6.66, 4.01-11.06), lower-grade elementary school students (17.11, 8.80-33.27), and higher-grade elementary school students (7.49, 4.71-11.92) were more likely to meet guidelines than junior high school students.Conclusions: Boys and lower-grade students engaged in more physical activity and were more likely to attain guidelines than girls and higher-grade students. These findings highlight the need for effective and sustainable strategies to promote physical activity in Japanese school children.

Background: Sedentary behaviors (SB) are associated with health indicators; however, there are currently very few studies that have examined these associations, especially in conjunction with psychological factors, in children. The current study examined the independent relationship between objectively assessed SB, and indicators of obesity and psychological, well-being, among Japanese children. Methods: A total of 967 elementary-school children completed a cross-sectional survey. SB was measured with accelerometers for 7 consecutive days. Psychological well-being data (eg, anxiety and behavior problems) were collected via a self-report questionnaire. To determine the relationship of SB with degree of obesity and psychological well-being, linear regression analyses were conducted to relate the indicators of obesity and psychological well-being on SB, adjusted by gender, grade, percentage of moderate-to-vigorous physical activity per day, duration spent wearing the accelerometer, and degree of obesity. Results: SB was significantly related to behavioral/emotional problems (beta = .280, P = .010, R-2 = .015). There was a statistically significant relationship between SB and anxiety (beta = .206, P = .059, R-2 = .007). No significant association with degree of obesity was found. Conclusions: Excess SB relates higher levels of behavioral/emotional problems and anxiety. These results can inspire the development of interventions that promote well-being and enhance psychological health, by focusing on SB in Japanese children.

Background: Although the benefits of the recommended level of physical activity on reducing chronic diseases are well-established, most of the Japanese population is not sufficiently active. Thus, examining correlates is an important prerequisite for designing relevant polices and effective programs. The present study investigated psychological, social, and environmental factors associated with meeting physical activity recommendations among Japanese adults.Methods: Data were analyzed for 1,932 men and women (43.6 +/- 13.0 years), who responded to an Internet-based cross-sectional survey. Self-reported measure of physical activity, psychological (self-efficacy, pros, and cons), social ( social support, health professional advice), environmental ( home fitness equipment, access to facilities, neighborhood safety, enjoyable scenery, frequently observing others exercising, residential area), and demographic ( gender, age, marital status, educational level, household income level, employment status) variables were obtained. Based on the current national guidelines for exercise in Japan ( 23 METs.hour per week), respondents were divided into two categories-recommended and not recommended ( insufficient and inactive)-according to their estimated weekly physical activity level. An adjusted logistic regression model was utilized.Results: When adjusting for all other variables, self-efficacy ( men: OR = 2.13; 95% CI: 1.55-2.94, women: OR = 2.72; 95% CI: 1.82-4.08) and possessing home fitness equipment ( men: OR = 1.55; 95% CI: 1.14-2.10, women: OR = 1.41; 95% CI: 1.01-1.99) for both genders, social support ( OR = 1.44; 95% CI: 1.06-1.97) for men, and enjoyable scenery ( OR = 1.60; 95% CI: 1.09-2.36) for women were positively associated with attaining the recommended level of physical activity. In women, cons ( OR = 0.47; 95% CI: 0.33-0.67) and living in rural areas ( OR = 0.50; 95% CI: 0.25-0.97) were negatively associated with meeting the physical activity recommendations.Conclusion: In the psychological, social, and environmental domains, significant correlates of attaining the recommended level of physical activity were observed. Men and women had different patterns of psychological, social, and environmental correlates. These findings suggest that an intervention design that accounts for those correlates may more effectively promote physical activity among Japanese adults.

The authors examined the relationship between strength-training behavior and perceived environment in older Japanese adults. An Internet-based survey was conducted of 293 adults age 68.2 +/- 2.8 yr. The dependent variable was regular strength-training behavior. The IPAQ environment module, access to facilities for strength training, and home equipment for strength training were environmental factors. Logistic-regression analysis was employed. After demographic variables (gender, age, educational background, household income, body-mass index, self-rated health status, smoking habit, and residential area) were adjusted for, home equipment for strength training (OR = 2.14, 95% CI = 1.50-3.06), access to facilities for strength training (OR = 2.53, 95% CI = 1.32-4.85), and observing active people (OR = 2.20, 95% CI = 1.06-4.58) were positively correlated with regular strength-training behavior. In conclusion, environmental factors associated with strength-training behavior were access to facilities for strength training, having home equipment for strength training, and observing active people.

【はじめに、目的】人工膝関節全置換術（TKA）は疼痛や身体機能を改善し、生活の質を高めるために行われる。しかしながら手術前から膝の痛みや身体機能の低下が生じ、健常者よりも身体活動量が低下しており、TKA後も身体活動量は低いといわれている。TKA患者においても三次予防を目的とした身体活動の向上に対する取り組みが重要である。これまでにTKA患者の身体活動量についての報告は散見されるが、TKA患者の退院後における身体活動量とその関連要因については明らかではない。そこで本研究ではTKA患者の身体活動量を調査し、その影響を及ぼす因子について検討した。【方法】対象は変形性膝関節症により初回TKAを施行し、退院後も外来リハビリテーションを実施した患者50例57膝とした。両側例は手術間隔を3ヵ月以上空けて実施した。手術時年齢は73.9±6.2歳、BMI26.1±3.8 kg/m2、術後在院日数25.2±9.6日で、外来リハビリテーションを週1回の頻度で術後3カ月間継続した。その際、自主トレーニングの指導と身体活動量を向上するように促した。身体活動量を歩数と定義し、計測には活動量計AM-120（タニタ社製、カロリズム）を連続7日間装着し平均歩数を算出した。身体機能評価はTimed up and go test（TUG）、開眼片脚起立時間、30秒椅子立ち上がりテスト、5m最大歩行速度、膝伸展筋力を測定した。Western Ontario and McMaster Universities OA Index（WOMAC）を用いて、膝関節の痛みと機能について評価した。自己効力感の評価として、虚弱高齢者の身体活動セルフ・エフィカシー（SE）尺度（歩行、階段、重量物）を用いた。各測定は術後3ヵ月に実施した。統計解析は、身体活動量と各検討項目との関連性をSpearmanの順位相関計数にて分析した。さらに身体活動量と相関のあった各因子を独立変数、身体活動量を従属変数としてステップワイズ法による重回帰分析を行った。統計解析はSPSS ver.19.0を用いて有意水準は5%とした。【結果】TKA患者の退院後ににおける身体活動量は2886.5±1847.2歩であった。身体活動量とTUG（r＝-0.264，p＜0.05）、術側開眼片脚起立時間（r＝0.312，p＜0.05）、非術側開眼片脚起立時間（r＝0.339，p＜0.01）、術側膝伸展筋力（r＝0.306，p＜0.05）、非術側膝伸展筋力（r＝0.299，p＜0.05）、5m最大歩行速度（r＝-0.471，p＜0.01）、歩行SE（r＝0.465，p＜0.01）、階段SE（r＝0.340，p＜0.05）との間に有意な相関を示した。重回帰分析の結果、身体活動量の影響因子として術側膝伸展筋力（β＝0.416，p＜0.01）と歩行SE（β=0.321，p＜0.01）が抽出された（R＝0.549）。【結論】TKA患者の退院後における身体活動量は極めて低く、その影響因子として身体機能では術側膝伸展筋力と心理的要因として歩行SEが重要であることが示唆された。TKA患者の身体活動量を向上させるためには膝伸展筋力強化のための筋力トレーニングに加え、歩行に関する自己効力感を高める方策が必要であることが示唆された。

The purpose of the present study was to examine the prevalence of strength training among Japanese adults, and to identify the characteristics of individuals who engage in strength training regularly. The current data was collected from 3000 randomly selected Japanese adults in the SSF National Sports-Life Survey 2006 (Sasakawa Sports Foundation, 2006). The response rate was 62.2%. As a result, the prevalence of regular strength training (more than 2 times per week) was 3.9%. In particular, the rates of regular strength training were low in older individuals (60-69 years were 2.5%, over 70 years were 0.6%). Logistic regression analysis revealed that age, gender, smoking habit, and self-rated physical fitness were significantly correlated with regular strength training. These findings indicate that the majority of Japanese do not participate strength training, especially among the elderly, women, smokers, and those with a lower degree of physical fitness.

The present study investigated the relative contributions of psychological, social, and environmental factors to meeting physical activity recommendation by walking among Japanese adults. Self-reported measures of total weekly physical activity, vigorous and moderately intense activity, walking, self-efficacy, pros, cons, social support, health-professional advice, home exercise equipment, access to facilities, neighbourhood safety, enjoyable scenery, frequently observing others exercising, and residential area were obtained from 1932 Japanese male and female adults using an Internet-based cross-sectional survey on February, 2008. Based on the recommendation criteria of the Exercise and Physical Activity Reference for Health Promotion 2006 (EPAR2006), respondents were divided into 3 groups: recommended, insufficient, and inactive. A force entry multivariate logistic regression model was utilized. Overall, 69.0% of responders walked in daily life, for transportation or for exercise. However, only 12.1% walked according to the recommended criterion of the EPAR2006. When adjusting for all other variables, there was no association between psychological, social, and environmental factors and recommended group in males. However, self-efficacy, pros, enjoyable scenery were positively whereas social support and living in both suburban and rural areas were negatively associated with only insufficient group in males. For females, selfefficacy, home exercise equipment, and enjoyable scenery were positively associated, whereas living in rural area was negatively associated with both recommended and sufficient groups. Living in suburban area was negatively associated with only insufficient group. Different psychological, social, and environmental correlates were found in walking behaviours with the recommended and insufficient level as well as for males and females. This suggests that a design of intervention that accounts for the specific correlates with each walking activity level and gender found in the current study may more effectively promote walking due to well-matching the needs and characteristics of the target population among Japanese adults.

目的健康日本21の中間報告書では、身体活動•運動分野の重点課題の 1 つとして「エクササイズガイド2006の普及」が挙げられている。一方、肥後•中村（2008）によれば、エクササイズガイド2006の認知者の割合は、他の健康づくり施策よりも低いものの、エクササイズガイド2006認知者の方が歩行習慣者の割合が多いことが報告されている。本研究の目的は、エクササイズガイド2006の認知度の経時変化を検討することと、エクササイズガイド2006の認知と身体活動量との関連性を縦断的に検討することであった。
方法対象は、社会調査モニター1100人（39.8±SD10.1歳）であった。2007年11月（T1）、2008年12月（T2）の計 2 回、インターネットを用いた質問調査を縦断的に実施した。エクササイズガイド2006の認知度は、「内容を知っている」、「聞いたことはあるが内容は知らない」、「聞いたことがない•今回の調査で始めて知った」の 3 段階で評価した。週当たりの身体活動量（METs•時/週）は、IPAQ–SV（Craig et al., 2003；村瀬他、2002）を用いて推定した。Mann–Whitnney 検定を用いて、期間中にエクササイズガイド2006を認知した者と、認知しなかった者の身体活動量の変化量を比較した。
結果エクササイズガイド2006の内容を知っていた者の割合は、T1 で1.4%、T2 で2.2%であり、認知度の有意な経時変化は認められなかった。調査期間中にエクササイズガイド2006を知った者の方が、両時点とも知らなかった者と比較して、身体活動量が低下傾向にあった（P=0.013）。
結論1 年間で認知度は向上しておらず、我が国においてエクササイズガイド2006の普及は進んでいないことが示唆された。エクササイズガイド2006の戦略的な普及方策の検討が求められる。ただし、先行研究とは異なり、エクササイズガイド2006を認知することが、身体活動の促進に対して肯定的な影響を与える可能性は示されなかった。普及が進み、認知度が向上した段階で検討を行うことで、両者の関係がより明確となるだろう。

BackgroundPhysical activity and physical performance relate to quality of life, mortality, and morbidity in elderly people. However, little is known about differences in physical performance related to low-intensity light physical activity (LLPA), high-intensity light physical activity (HLPA), and moderate-intensity physical activity (MPA) and how they are separated by sex in elderly populations.AimsThis study aimed to determine differences in LLPA, HLPA, MPA, and physical performance, and associations between these measures in community-dwelling elderly men and women.MethodsPhysical activity and physical performance such as timed-up-and-go test, one-leg standing time, and maximum gait speed were measured in 181 community-dwelling elderly men (mean age, 75.1 +/- 5.3 years) and 109 women (mean age, 73.4 +/- 4.8 years) in 2013. Physical activity was classified as LLPA (1.6 +/- 1.9 METs of physical activity), HLPA (2.0 similar to 2.9 METs of physical activity), and MPA (over 3 METs of physical activity). The association between the values of these three intensities of physical activity in the participants was assessed by Pearson's correlation coefficients. Multiple linear regression analyses were used to assess the association of physical performance values with the three groups defined by accelerometer- measured physical activity intensity adjusted for sociographic, behavioral, and multiple diseases in the participants.ResultsMPA was beneficially associated with all physical performance indicators in the men (all P 0.05) and women (all P 0.05). Only HLPA showed significant associations with the timed-up-and-go test (P = 0.001) and maximum gait speed (P = 0.006) in women. Discussion These results may support the notion that not only HLPA in women but MPA in both sexes appears to improve physical performance in elderly populations. Conclusion The present study findings provide novel epidemiological evidence for the potential benefits of HLPA in women and also reinforce the potential benefits of MPA in both sexes, which is the mainstay of public health recommendations.

Objective:The present study examined physical activity(PA)levels and differences in PA by gender and grades during school recess periods. Method:PA levels of two hundred and thirty children(55% boys, 42%younger)from two elementary schools in Japan were measured with accelerometry for seven consecutive days. Time spent in sedentary, light PA, moderate PA, vigorous PA during break(25 minutes)and lunch recess(15 minutes), and total recess(40 minutes)was determined. Two-way analysis of variance was used to examine differences in PA variables by gender and grades. Results:Data of one hundred and eighty four children(52% boys, 56% younger)was available. Time spent in sedentary, light PA, moderate PA, and vigorous PA was 8.5±4.9, 12.9±3.8, 1.6±1.2, and 2.9±2.8 minutes during break, and 3.5±2.5, 9.5±2.2, 1.4±0.9, and 1.6±1.4 minutes during lunch recess, respectively. There were no significant interactions between gender and grades. Significant main effects of PA variables were found for gender and grades. Boys had fewer sedentary time(p=0.017)and higher vigorous PA time(p<0.001)than girls during total recess. Younger engaged in more sedentary(p=0.045)and less light(p=0.023)and moderate PA(p=0.006)than older at break. On the other hand, at lunch recess, younger had significantly longer light(p=0.015)and vigorous PA(p<0.001)and shorter sedentary time(p<0.001)than older. Conclusion:Overall, boys were less sedentary and engaged in PA at higher intensity levels than girls during school recess. Different pattern in PA was shown between break and lunch recess by grades.

Purpose: The aim of this study was to translate the Psychological Inflexibility in Pain Scale Japanese version (PIPS-J) and inspect its validity and reliability in older patients with chronic low back pain and knee pain. Materials and Methods: The PIPS was translated into Japanese by a bilingual linguistic expert and three researchers and administered to 120 outpatients with low back pain and knee pain (61.7% women, age 73.8±7.8 years). Construct validity and criterion validity were evaluated using confirmatory factor analysis and the correlations with the Acceptance and Action Questionnaire-II Japanese version (AAQ-II-J) and the Cognitive Fusion Questionnaire Japanese version (CFQ-J), respectively. Internal consistency using Cronbach's alpha and test-retest reliability (n=43) were also examined. Results: Of all, 78.3% had low back pain, 55.6% had knee pain, and 44.2% both. The confirmatory factor analysis reproduced the original PIPS structure with two factors and indicated good model fit (GFI = 0.915, CFI = 0.970, RMSEA = 0.060). All items' standardized regression weights ranged from 0.35 to 0.80. Criterion validity was shown by correlations of r = 0.58 for PIPS-J pain avoidance with the AAQ-II-J, and r = 0.45 between PIPS-J cognitive fusion and the CFQ-J. Cronbach's alpha for the PIPS-J total score was α=0.85 (pain avoidance: 0.87; cognitive fusion: 0.68). The test-retest correlation for all 12 items was r = 0.54 (pain avoidance: 0.48; cognitive fusion: 0.54). Conclusion: Although a less relevant item was found on each of subscales, the PIPS-J appear to be fairly valid and reliable to evaluate psychological inflexibility in chronic pain among Japanese older adults.

Evidence for social pathways to health benefits for dog owners appears positive but less well-developed. Our study aimed to estimate the differences in social capital by dog ownership and dog walking status among young-to-middle-aged adults and older adults in Japan. Data from 3606 residents living in Japan were used. Data on social capital, dog ownership, and dog walking were collected by questionnaires. Age-stratified multivariable linear regression models were used to estimate differences in social capital scores by dog ownership and dog walking status. Among young-to-middle-aged adults, the mean of the activities with neighbours score, adjusted for covariates, was significantly higher (p  0.05) for the dog owner walkers group compared to the non-dog owners group. Among older adults, no significant differences in the marginal means of social capital scores were observed between the three groups of non-dog owners, dog owner non-walkers, and dog owner walkers. While the benefits of social capital for a healthy lifestyle have been well-documented, few means have been identified to intervene in social capital. Building on and expanding the known health benefits of dog ownership and dog walking, this study revealed modest support for the link between dog walking and activities with neighbours among young-to-middle-aged adults, but no meaningful associations were found for older adults. Additionally, no significant link was observed between dog walking and social cohesion among either age group. Future research can further improve the use of dog-based behavioural health interventions for fostering social capital.

BACKGROUND: Sedentary behaviors and physical activity are likely to be affected by the COVID-19 outbreak, and sedentary lifestyles can increase subjective fatigue. The nonpharmaceutical policies imposed as a result of the COVID-19 pandemic may also have adverse effects on fatigue. OBJECTIVE: This study has two aims: to examine the changes in sedentary behaviors and physical activity of company workers in response to the COVID-19 pandemic in Japan and to examine relationships between changes in these sedentary behaviors and physical activity and changes in fatigue. METHODS: Data from a nationwide prospective online survey conducted in 2019 and 2020 were used. On February 22, 2019, an email with a link to participate in the study was sent to 45,659 workers, aged 20 to 59 years, who were randomly selected from a database of approximately 1 million individuals. A total of 2466 and 1318 participants, who self-reported their occupation as company workers, answered the baseline and follow-up surveys, respectively. Surveys captured fatigue, workday and daily domain-specific sedentary behaviors and physical activity, and total sedentary behaviors and physical activity. We used multivariable linear regression models to estimate associations of changes in sedentary behaviors and physical activity with changes in fatigue. RESULTS: Increases in public transportation sitting during workdays, other leisure sitting time during workdays, and other leisure sitting time were associated with an increase in the motivation aspect of fatigue (b=0.29, 95% CI 0-0.57, P=.048; b=0.40, 95% CI 0.18-0.62, P<.001; and b=0.26, 95% CI 0.07-0.45, P=.007, respectively). Increases in work-related sitting time during workdays, total sitting time during workdays, and total work-related sitting time were significantly associated with an increase in the physical activity aspect of fatigue (b=0.06, 95% CI 0-0.12, P=.03; b=0.05, 95% CI 0.01-0.09, P=.02; and b=0.07, 95% CI 0-0.14, P=.04, respectively). The motivation and physical activity aspects of fatigue increased by 0.06 for each 1-hour increase in total sitting time between baseline and follow-up (b=0.06, 95% CI 0-0.11, P=.045; and b=0.06, 95% CI 0.01-0.10, P=.009, respectively). CONCLUSIONS: Our findings demonstrated that sedentary and active behaviors among company workers in Japan were negatively affected during the COVID-19 outbreak. Increases in several domain-specific sedentary behaviors also contributed to unfavorable changes in workers' fatigue. Social distancing and teleworking amid a pandemic may contribute to the sedentary lifestyle of company workers. Public health interventions are needed to mitigate the negative effects of the COVID-19 pandemic or future pandemics on sedentary and physical activity behaviors and fatigue among company workers.

Although many studies have reported that a posteriori dietary pattern is associated with metabolic health, there is little evidence of an association between dietary patterns and different metabolic phenotypes. The present study aimed to examine the association between major dietary patterns and different metabolic phenotypes (metabolically healthy non-obese [MHNO], metabolically unhealthy non-obese [MUNO], metabolically healthy obese [MHO], and metabolically unhealthy obese [MUO]) in middle-aged and elderly Japanese adults. This cross-sectional study enrolled 2,170 Japanese adults aged ≥40 years. The four different metabolic phenotypes were determined based on the presence of obesity, abdominal obesity, hypertension, hyperglycemia, and dyslipidemia. The major dietary patterns were determined using principal component analysis based on energy-adjusted food intake. Two dietary patterns were identified: the healthy dietary pattern, which was characterized by a high intake of vegetables, fruits, potatoes, soy products, mushrooms, seaweeds, and fish; and the alcohol dietary pattern, which was characterized by a high intake of alcoholic beverages, liver, chicken, and fish. The healthy dietary pattern was associated with the MHNO and MHO phenotypes (MUNO and MUO as reference groups, respectively), and the multivariate-adjusted odds ratios (ORs) (95% confidence intervals [CIs]) in the highest quartile of healthy dietary pattern score with the lowest quartile as the reference category were 2.10 (1.40-3.15) and 1.86 (1.06-3.25), respectively. Conversely, the alcohol dietary pattern was inversely associated with the MHNO and MHO phenotypes, while the multivariate-adjusted ORs (95% CIs) in the highest quartile of the alcohol dietary pattern score with the lowest quartile as the reference category were 0.63 (0.42-0.94) and 0.45 (0.26-0.76), respectively. There were no significant interactions between sex and healthy/alcohol dietary patterns in the prevalence of the MHNO and MHO phenotypes. In conclusion, the present study's findings suggest that major dietary patterns are associated with different metabolic phenotypes in middle-aged and elderly Japanese adults. These findings provide useful evidence for maintaining metabolic health through diet regardless of obesity status.

School-based extracurricular sports activity (SBECSA) is a beneficial activity for positive youth development. However, there are some problems regarding the management of SBECSA, such as the lack of SBECSA teachers who can coach expertly and the great burden for SBECSA teachers. Although the number of external coaches has not been sufficient, recruiting external coaches into SBECSA has been focused on to help resolve these issues. For further effective recruitment of external coaches, approaching the community residents who have motivation to be external coaches is important. Nevertheless, the sociodemographics associated with the motivation still have not been explored. Therefore, the purpose of the present study was to clarify the sociodemographics of community residents who have motivation to become involved in SBECSA as external coaches (potential external coaches) . An Internet-based cross-sectional survey was conducted by a social survey company with 19506 registrants aged 20-69 years. Stratified random sampling was continued till 100 potential external coaches were collected for both genders and every age group. Coaching motivation as an external coach and six sociodemographics (gender, age, occupational status, marital status, teaching credential, and coaching credential) were obtained. As a statistical analysis, logistic regression analysis was performed. Overall, 19239 participants were included in the analysis and 5.9% of them had coaching motivation. Potential external coaches were significantly less likely to be females (OR = 0.42) , people in their 30s (OR = 0.63) , 40s (OR = 0.40) , 50s (OR = 0.30) , 60s (OR = 0.24) than males and people in their 20s. In addition, workers (OR = 1.49) , students (OR = 1.52) , married people (OR = 1.32) , those who have teaching credentials (OR = 1.60) and coaching credentials (OR = 8.13) were more likely to be external coaches. In conclusion, the present study clarified the sociodemographics of potential external coaches. It is suggested in recruiting external coaches into SBECSA, providing promotion strategies which take these sociodemographic factors into account would be effective.