Most studies investigating the effects of non-pharmacological interventions, such as physical tra... more Most studies investigating the effects of non-pharmacological interventions, such as physical training (PT), on cardiac autonomic control, assessed the HRV only in resting conditions. Recently, a new time-frequency mathematical approach based on the short-time Fourier transform (STFT) method has been validated for the assessment of HRV in non-stationary conditions such as the immediate post-exercise period. The aim of this study was to evaluate the effects of the PT on post-exercise cardiac autonomic control using the time-frequency STFT analysis of the HRV. Twenty-one healthy male volunteers participated in this study. The subjects were initially evaluated for their physical exercise/sport practice and allocated to groups of low physical training ((Low)PT, n = 13) or high physical training (H(igh)PT, n = 8). The post-exercise HRV was assessed by the STFT method, which provides the analysis of dynamic changes in the power of the low- and high-frequency spectral components (LF and HF...
Background living areas in developing countries impacts seriously lifestyle by the increase the c... more Background living areas in developing countries impacts seriously lifestyle by the increase the consumption of energy-rich foods, less energy expenditure and sedentary behaviors. Urbanization is also associated with less practice of physical activity (PA) which is considered as the leading cause of metabolic syndrome (MetS) which MetS prevalence vary in African countries. The present study aimed to assess the effect of PA on MetS according to urbanization in the littoral region in Cameroon. Methods A cross-sectional study was conducted in three geographical settings (urban, semi-urban, and rural) in the littoral region in Cameroon. A total of 879 participants was included (urban: 372, semi-urban: 195 and rural: 312). The MetS was defined according to the International Federation of Diabetes 2009. The level of PA was assessed using the Global physical activity questionnaire. Results Low level of PA was (P < 0.0001) reported in urban (54.5%), semi urban (28.7%) and rural (16.9%) an...
Adiponectin an adipocytokine synthesized by adipocytes and small dense low-density lipoprotein-ch... more Adiponectin an adipocytokine synthesized by adipocytes and small dense low-density lipoprotein-cholesterol (sdLDL-C), a subfraction of LDL-cholesterol was found to be more atherogenic and may predispose to increased risk of cardiovascular diseases among the overweight and the obese persons. This study determined the relationship between the two biomarkers along with the traditional lipid profile among apparently healthy, ideal weight, overweight and the obese Nigerians. The ideal weight, overweight, and obese subjects were selected based on their body mass indices. Plasma total adiponectin was determined using a sandwich immunoassay technique; while serum small dense LDL-cholesterol was measured using precipitation method. The fasting serum lipid profile was assessed using the enzymatic methods for total cholesterol, triglyceride; and HDL-cholesterol after precipitation. LDL-cholesterol was determined using Friedewald equation. Mean plasma total adiponectin levels in the ideal weigh...
Background Musculoskeletal Disorders (MSDs) are very common conditions in the workplace. Among pr... more Background Musculoskeletal Disorders (MSDs) are very common conditions in the workplace. Among professional drivers, there would be an increased risk of developing these disorders. Identifying the associated factors would allow us to better devise effective prevention strategies. Our objective was to determine the prevalence of MSDs among taxi drivers in the city of Yaoundé and to search for associated factors, mainly the level of physical activity. Methods We conducted an analytical cross-sectional study of 151 adult male professional taxi drivers. We used a non-probabilistic consecutive and non-exhaustive sampling method. Sociodemographic, anthropometric and occupational data were collected. MSDs over the past 12 months were assessed using the Nordic Questionnaire and physical activity level was determined by the World Health Organization (WHO) Global Physical Activity Questionnaire (GPAQ). Univariate logistic regression models, followed by a multivariate logistic regression, were...
Background Musculoskeletal pains (MSPs) in sport are cause of poor performances and loss of compe... more Background Musculoskeletal pains (MSPs) in sport are cause of poor performances and loss of competition in athletes. The present study aimed at determining the prevalence of MSPs in relation to sport disciplines and athletic status. Methods A cross-sectional study was conducted among 320 Senegalese professional and amateur athletes practicing football, basketball, rugby, tennis, athletics, and wrestling. Rates of MSPs were assessed in a year (MSPs-12) and a week (MSPs-7d) using standard questionnaires. Results Overall proportions of MSPs-12 and MSPs-7d were 70% and 74.2%, respectively. MSPs-12 were most frequently reported on shoulders (40.6%), neck (37.1%), and hips/thigh (34.4%) while MSPs-7d were predominant on hips/thigh (29.5%), shoulders (25.7%), and upper back (17.2%). Proportions of MSPs-12 and MSPs-7d were significantly varied by sport disciplines, with highest values in basketball players. Again, MSPs-12 proportions on shoulders (29.7%, P = 0.02), wrists/hands (34.6%, P = ...
60 sujets obeses de sexe feminin issus des centres de mise en forme du Hilton Hotel et du Club Ol... more 60 sujets obeses de sexe feminin issus des centres de mise en forme du Hilton Hotel et du Club Olympic de Bastos a Yaounde ont ete soumis a un exercice physique standardise de 6 semaines, soit 30 jours de marche sur tapis roulant d'une duree d'une heure par jour a la vitesse de 5 km/h. L'evaluation des parametres physiologiques et biochimiques a montre une diminution des taux de glucose, des triglyceridemies et de cholesterol (P < 0,05), la consommation maximale d'oxygene estimee a montre une legere augmentation mais non significative et la recuperation de la frequence cardiaque egalement sauf pour la valeur de la frequence cardiaque a la 10e min. qui a montre une nette difference significative P < 0,01, une amelioration du metabolisme lactique est a la base de cette difference.
Osteoprotegerin (OPG), a soluble member of tumor necrosis factor receptor superfamily that inhibi... more Osteoprotegerin (OPG), a soluble member of tumor necrosis factor receptor superfamily that inhibits bone resorption, has been suggested as a cardiovascular risk factor in humans. In this study, we aim to investigate the potential relationship between OPG and MetS (MetS) in a sub-Saharan African population. Four hundred and eleven volunteers (152 men, 259 women) aged ≥18 years recruited from the general population in Douala and Edea, Cameroon participated in this study. Anthropometric parameters measured and blood samples were collected for glucose, serum lipids and OPG concentrations measurements. Mean differences of the variables in different groups were compared using Students' t test. We performed logistic regressions to analyze the impact of independent factors on the relation between OPG and MetS outcome. MetS was defined using the Joint Interim Statement 2009. OPG levels did not vary significantly between both men and women with and without MetS (both P>0.05). However, ...
International Journal of Environmental Research and Public Health
The aim of this study was to assess the epidemiology of musculoskeletal disorders (MSDs) among th... more The aim of this study was to assess the epidemiology of musculoskeletal disorders (MSDs) among the teaching staff of the University of Douala and determine their association with physical activity (PA) practice. The Nordic questionnaire was used to assess MSDs. Ricci–Gagnon questionnaire was used to determine the level of PA. We recruited 104 participants mean-aged 42 ± 8 years, 80% male. Previous 7 days and 12 months prevalence were 56.7% and 80.8%, respectively. The most affected body regions were neck, shoulders and lower back. No significant association was found between MSDs and PA. Celibacy was significantly associated with previous 7-days MSDs (p = 0.048) while age ≥ 45 years and job seniority ≥ 10 years were significantly associated with a reduced risk of previous 12-months MSDs (p = 0.039 and p = 0.016, respectively). The prevalence of MSDs among university of Douala teaching staff showed no significant effect with the practice of PA.
Most studies investigating the effects of non-pharmacological interventions, such as physical tra... more Most studies investigating the effects of non-pharmacological interventions, such as physical training (PT), on cardiac autonomic control, assessed the HRV only in resting conditions. Recently, a new time-frequency mathematical approach based on the short-time Fourier transform (STFT) method has been validated for the assessment of HRV in non-stationary conditions such as the immediate post-exercise period. The aim of this study was to evaluate the effects of the PT on post-exercise cardiac autonomic control using the time-frequency STFT analysis of the HRV. Twenty-one healthy male volunteers participated in this study. The subjects were initially evaluated for their physical exercise/sport practice and allocated to groups of low physical training ((Low)PT, n = 13) or high physical training (H(igh)PT, n = 8). The post-exercise HRV was assessed by the STFT method, which provides the analysis of dynamic changes in the power of the low- and high-frequency spectral components (LF and HF...
Background living areas in developing countries impacts seriously lifestyle by the increase the c... more Background living areas in developing countries impacts seriously lifestyle by the increase the consumption of energy-rich foods, less energy expenditure and sedentary behaviors. Urbanization is also associated with less practice of physical activity (PA) which is considered as the leading cause of metabolic syndrome (MetS) which MetS prevalence vary in African countries. The present study aimed to assess the effect of PA on MetS according to urbanization in the littoral region in Cameroon. Methods A cross-sectional study was conducted in three geographical settings (urban, semi-urban, and rural) in the littoral region in Cameroon. A total of 879 participants was included (urban: 372, semi-urban: 195 and rural: 312). The MetS was defined according to the International Federation of Diabetes 2009. The level of PA was assessed using the Global physical activity questionnaire. Results Low level of PA was (P < 0.0001) reported in urban (54.5%), semi urban (28.7%) and rural (16.9%) an...
Adiponectin an adipocytokine synthesized by adipocytes and small dense low-density lipoprotein-ch... more Adiponectin an adipocytokine synthesized by adipocytes and small dense low-density lipoprotein-cholesterol (sdLDL-C), a subfraction of LDL-cholesterol was found to be more atherogenic and may predispose to increased risk of cardiovascular diseases among the overweight and the obese persons. This study determined the relationship between the two biomarkers along with the traditional lipid profile among apparently healthy, ideal weight, overweight and the obese Nigerians. The ideal weight, overweight, and obese subjects were selected based on their body mass indices. Plasma total adiponectin was determined using a sandwich immunoassay technique; while serum small dense LDL-cholesterol was measured using precipitation method. The fasting serum lipid profile was assessed using the enzymatic methods for total cholesterol, triglyceride; and HDL-cholesterol after precipitation. LDL-cholesterol was determined using Friedewald equation. Mean plasma total adiponectin levels in the ideal weigh...
Background Musculoskeletal Disorders (MSDs) are very common conditions in the workplace. Among pr... more Background Musculoskeletal Disorders (MSDs) are very common conditions in the workplace. Among professional drivers, there would be an increased risk of developing these disorders. Identifying the associated factors would allow us to better devise effective prevention strategies. Our objective was to determine the prevalence of MSDs among taxi drivers in the city of Yaoundé and to search for associated factors, mainly the level of physical activity. Methods We conducted an analytical cross-sectional study of 151 adult male professional taxi drivers. We used a non-probabilistic consecutive and non-exhaustive sampling method. Sociodemographic, anthropometric and occupational data were collected. MSDs over the past 12 months were assessed using the Nordic Questionnaire and physical activity level was determined by the World Health Organization (WHO) Global Physical Activity Questionnaire (GPAQ). Univariate logistic regression models, followed by a multivariate logistic regression, were...
Background Musculoskeletal pains (MSPs) in sport are cause of poor performances and loss of compe... more Background Musculoskeletal pains (MSPs) in sport are cause of poor performances and loss of competition in athletes. The present study aimed at determining the prevalence of MSPs in relation to sport disciplines and athletic status. Methods A cross-sectional study was conducted among 320 Senegalese professional and amateur athletes practicing football, basketball, rugby, tennis, athletics, and wrestling. Rates of MSPs were assessed in a year (MSPs-12) and a week (MSPs-7d) using standard questionnaires. Results Overall proportions of MSPs-12 and MSPs-7d were 70% and 74.2%, respectively. MSPs-12 were most frequently reported on shoulders (40.6%), neck (37.1%), and hips/thigh (34.4%) while MSPs-7d were predominant on hips/thigh (29.5%), shoulders (25.7%), and upper back (17.2%). Proportions of MSPs-12 and MSPs-7d were significantly varied by sport disciplines, with highest values in basketball players. Again, MSPs-12 proportions on shoulders (29.7%, P = 0.02), wrists/hands (34.6%, P = ...
60 sujets obeses de sexe feminin issus des centres de mise en forme du Hilton Hotel et du Club Ol... more 60 sujets obeses de sexe feminin issus des centres de mise en forme du Hilton Hotel et du Club Olympic de Bastos a Yaounde ont ete soumis a un exercice physique standardise de 6 semaines, soit 30 jours de marche sur tapis roulant d'une duree d'une heure par jour a la vitesse de 5 km/h. L'evaluation des parametres physiologiques et biochimiques a montre une diminution des taux de glucose, des triglyceridemies et de cholesterol (P < 0,05), la consommation maximale d'oxygene estimee a montre une legere augmentation mais non significative et la recuperation de la frequence cardiaque egalement sauf pour la valeur de la frequence cardiaque a la 10e min. qui a montre une nette difference significative P < 0,01, une amelioration du metabolisme lactique est a la base de cette difference.
Osteoprotegerin (OPG), a soluble member of tumor necrosis factor receptor superfamily that inhibi... more Osteoprotegerin (OPG), a soluble member of tumor necrosis factor receptor superfamily that inhibits bone resorption, has been suggested as a cardiovascular risk factor in humans. In this study, we aim to investigate the potential relationship between OPG and MetS (MetS) in a sub-Saharan African population. Four hundred and eleven volunteers (152 men, 259 women) aged ≥18 years recruited from the general population in Douala and Edea, Cameroon participated in this study. Anthropometric parameters measured and blood samples were collected for glucose, serum lipids and OPG concentrations measurements. Mean differences of the variables in different groups were compared using Students' t test. We performed logistic regressions to analyze the impact of independent factors on the relation between OPG and MetS outcome. MetS was defined using the Joint Interim Statement 2009. OPG levels did not vary significantly between both men and women with and without MetS (both P>0.05). However, ...
International Journal of Environmental Research and Public Health
The aim of this study was to assess the epidemiology of musculoskeletal disorders (MSDs) among th... more The aim of this study was to assess the epidemiology of musculoskeletal disorders (MSDs) among the teaching staff of the University of Douala and determine their association with physical activity (PA) practice. The Nordic questionnaire was used to assess MSDs. Ricci–Gagnon questionnaire was used to determine the level of PA. We recruited 104 participants mean-aged 42 ± 8 years, 80% male. Previous 7 days and 12 months prevalence were 56.7% and 80.8%, respectively. The most affected body regions were neck, shoulders and lower back. No significant association was found between MSDs and PA. Celibacy was significantly associated with previous 7-days MSDs (p = 0.048) while age ≥ 45 years and job seniority ≥ 10 years were significantly associated with a reduced risk of previous 12-months MSDs (p = 0.039 and p = 0.016, respectively). The prevalence of MSDs among university of Douala teaching staff showed no significant effect with the practice of PA.
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