Rationale and design of the cardiorespiratory fitness and hospitalization events in armed forces study in Eastern Taiwan

Lin, Gen‐Min; Li, Yi-Hwei; Lee, Chung‐Jen; Shiang, Jeng-Chuan; Lin, Ko-Huan; Chen, Kaiwen; Chen, Yu-Jung; Wu, Chenguang; Lin, Been-Sheng; Yu, Yun-Shun; Lin, Felicia; Su, Fung-Yin; Wang, Chih‐Hung

doi:10.4330/wjc.v8.i8.471

Cited by 8 publications

(8 citation statements)

References 21 publications

(24 reference statements)

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“…The study used a voluntary military population of 4,080 adults, aged 18–50 years from the cardiorespiratory fitness and hospitalization events in armed forces study (CHIEF) carried out in eastern Taiwan during 2014 (Lin et al, 2016; Tsai et al, 2019). All participants carried out a formal health examination in the Hualien Armed Forces General Hospital.…”

Section: Methodsmentioning

confidence: 99%

“…The participants underwent at least one of the three basic exercise tests including a 2-min sit-ups test, a 2-min push-ups test, and a 3,000-meter run test, separately at the Military Physical Training and Testing Center of eastern Taiwan. The study design of the CHIEF study has been described in detail previously (Chen et al, 2017; Lin et al, 2016; Tsai et al, 2018).…”

Section: Methodsmentioning

confidence: 99%

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Quantitative Physical Fitness Measures Inversely Associated With Myopia Severity in Military Males: The CHIEF Study

Liu

Hsieh

et al. 2019

Am J Mens Health

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Myopia has been linked to body weight and sedentary status, but the association with quantitatively measured physical fitness in adults has not been examined. Cross-sectional analyses were performed to investigate the association between physical fitness and myopia in 3,669 military men (aged 29.4 years) in Taiwan. The severity of myopia obtained from the left eye was classified as mild (−0.5 to −3.0 diopters; n = 544), moderate −3.1 to −6.0 diopters; n = 563), and high (<−6.0 diopters; n =150); others were defined as nonmyopia ( n = 2,412). Aerobic fitness was evaluated by time for a 3000-meter run test, and muscular endurance was evaluated by numbers of 2-min sit-ups and 2-min push-ups. A value of p < .0125 was considered significant. A multiple linear regression analysis was used to determine the relationship. Individuals who were less physically fit had higher risk of myopia. The associations were dose-dependently significant with mild, moderate, and high myopia for 3000-meter running time (β = 9.64; 95% confidence intervals [3.22, 16.05], β = 12.41; 95% CI [6.05, 18.76], and β = 20.87; 95% CI [9.22, 32.51], respectively) after controlling for the potential covariates. There tended to be an inverse association with moderate and high myopia for numbers of 2-min push-ups (β = −1.38; 95% CI [−2.43, −0.34] and β = −2.10; 95% CI [− 3.97, −0.22], respectively) and 2-min sit-ups (β = −0.83; 95% CI [−1.54, −0.12] and β = −1.29; 95% CI [−2.56, −0.02], respectively), respectively. This study suggested that physical fitness, particularly aerobic fitness of the military males who received regular training, is inversely associated with myopia severity, independent of service specialty, body mass index, and educational level.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Quantitative Physical Fitness Measures Inversely Associated With Myopia Severity in Military Males: The CHIEF Study

Liu

Hsieh

et al. 2019

Am J Mens Health

Self Cite

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“…All participants received the annual health examination and underwent any one of the three exercise tests including 2 min push-ups, 2 min sit-ups and 3000 m non-weight-bearing running in eastern Taiwan. The study design has been described previously 9. Of these 5002 participants, we excluded 223 women in whom only three had a habit of betel nut chewing (prevalence of 1%), and 391 men without relevant covariates, leaving a sample of 4388 men for analysis.…”

Section: Methodsmentioning

confidence: 99%

Association of betel nut chewing with exercise performance in a military male cohort: the CHIEF study

Tsai

Lin

et al. 2018

J R Army Med Corps

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“…The cardiorespiratory fitness and hospitalization events in the armed forces (CHIEF) is a retrospective military cohort study of 4080 men and women, aged between 18 and 50 years in eastern Taiwan during 2014. [21][22][23][24][25][26][27] All participants received the annual heath examinations for a whole body physical examination, chest radiography, 12lead electrocardiography, blood routine, and biochemical tests in the Hualien Armed Forces General Hospital. In addition, all military officers had to attend for the annual three exercise tests, including a 3000-meter run, 2-minute push-ups, and 2-minute sit-ups for their rank promotion and award.…”

Section: Study Populationmentioning

confidence: 99%

Association of red blood cell size and physical fitness in a military male cohort: The CHIEF study

Lai

Tsai

Lin

et al. 2020

Scandinavian Med Sci Sports

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Anemia manifested as reduced red blood cell (RBC) amounts or hemoglobin levels has been associated with lower cardiorespiratory fitness. However, the relationship of smaller RBC with physical fitness was unknown. We included 2933 non-anemic military males (hemoglobin levels: 11.1-15.9 g/dL and mean corpuscular volume (MCV) <100 fL) in Taiwan during 2014. Aerobic fitness was assessed by time for a 3000-meter run, and anaerobic fitness was evaluated by numbers of sit-ups and pushups, each performed within 2 minutes. Multiple linear and logistic regression models adjusting for age, service specialty, lipid profiles, and hemoglobin levels were used to determine the associations. Microcytosis and normocytosis were defined as MCV ≤ 70 fL (n = 190) and MCV > 70 fL (n = 2743), respectively. The linear regression shows that as compared with microcytosis, normocytosis was associated with more numbers of sit-ups performed within 2 minutes (β = 1.51, P-value = 0.02). The logistic regression also reveals that those males with microcytosis had higher probability as the worst 10% performers in the 2-minute push-up test (odds ratio: 1.91, 95% confidence intervals: 1.18-3.12). By contrast, there was no association of microcytosis with 3000-meter running time. Our study suggests that non-anemic microcytosis was associated with lower anaerobic fitness but not with aerobic fitness. Whether the causative factors for microcytosis such as iron deficiency status 296 | LAI et AL.

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Rationale and design of the cardiorespiratory fitness and hospitalization events in armed forces study in Eastern Taiwan

Cited by 8 publications

References 21 publications

Quantitative Physical Fitness Measures Inversely Associated With Myopia Severity in Military Males: The CHIEF Study

Quantitative Physical Fitness Measures Inversely Associated With Myopia Severity in Military Males: The CHIEF Study

Association of betel nut chewing with exercise performance in a military male cohort: the CHIEF study

Association of red blood cell size and physical fitness in a military male cohort: The CHIEF study

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