Dirk Aerenhouts

Dirk Aerenhouts
Vrije Universiteit Brussel | VUB · Biomechanics and Human Biometry (BIOM)

PhD

About

65
Publications
21,176
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617
Citations
Additional affiliations
February 2012 - present
Erasmushogeschool Brussel
Position
  • Lecturer
October 2005 - present
Vrije Universiteit Brussel
Position
  • Professor

Publications

Publications (65)
Article
Full-text available
Background A healthy lifestyle during pregnancy is important for the health of mother and child. However, unfavorable physical activity (PA) and dietary changes are observed in pregnant women and their partner. Partner's influence on lifestyle has been reported by expectant women and men. The first aim was to analyze associations between perceived...
Article
Scaled tennis is the downsized version of adult tennis and aims to allow youth players to play a type of tennis that resembles adult tennis. However, since the different scaling conditions (red, orange, lime and green tennis court) were chosen pragmatically it is unclear whether the match play characteristics of scaled tennis resemble those of adul...
Article
Full-text available
Feasible interventions addressing unhealthy changes in energy balance-related behavior (EBRB) during pregnancy and early postpartum are needed. This study identified the needs and wishes of expecting and first-time parents concerning EBRB interventions during the transition to parenthood. Thirteen focus group discussions (n = 74) were conducted. Co...
Article
Background and objectives: Parental body composition, physical activity (PA) and sedentary time (ST) have been linked with offspring body weight and health. However, independent contributions of body composition, PA and ST of both parents on growth trajectories of their offspring, taking into account sex differences, has not been investigated. Me...
Article
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Background: Becoming a parent may cohere with drastic changes in physical activity (PA) and sedentary behavior (SB). A clear understanding of determinants of changes in PA and SB during pregnancy and postpartum is needed to facilitate the development of tailored family-based interventions. Methods: Thirteen focus group discussions targeting dete...
Article
This study aimed to examine side-to-side differences in phase angle (PhA) in both upper and lower limbs of youth elite tennis players. Among other outcomes, PhA was directly determined using segmental multifrequency bioelectrical impedance analysis (BIA) in 26 tennis players (11.6±1.1 years, 54% boys) and compared against a sex- and age-matched ref...
Article
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Background: Healthy eating behavior throughout pregnancy and postpartum is important. This study aimed to investigate the perceived sex-specific importance of determinants of changes in eating behavior during pregnancy and postpartum. Methods: Fifty-four determinants were rated by first-time parents (n = 179) on their impact. Experts (n = 31) ra...
Article
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Background During the pregnancy and postpartum period, both women and men experience physiological and psychological changes, which may negatively impact their eating behavior. A clear understanding of determinants of changes in eating behavior during this period is needed to facilitate the development of targeted family-based interventions counter...
Article
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Objectives The aim of this systematic review and meta-analysis was to evaluate the effectiveness of local heat applications (LHA) in individuals with acute or chronic musculoskeletal disorders. Data Sources An electronic search was conducted on MEDLINE, CENTRAL, CINHAL and the PEDro databases up to December 2019. Study Selection Studies incorpora...
Article
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Maintaining euhydration is important for optimal health, performance and recovery, but can be challenging for alpine skiers when training in a relatively cold but dry environment. This study aimed to evaluate hydration status, fluid loss and fluid intake in adolescent alpine skiers during a training camp. Twelve athletes aged 14.3 ± 0.9 years volun...
Article
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This study validated the International Physical Activity Questionnaire (IPAQ) and the Context-specific Sedentary Behavior Questionnaire (CSBQ) against accelerometry among parents-to-be. Sex-differences in potential misreporting of physical activity (PA) and sedentary behavior (SB) were also investigated. Self-reported total PA (TPA), light-intensit...
Article
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This study compared the effect of a resistance training (RT) program with machines, free weights, or a combination of both on changes in anthropometrics, strength, and functional ability in novice adult males. Thirty-six male novices in RT (18–45 years) followed a 10-week RT program. Participants were randomly assigned to one of three groups (N = 1...
Article
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Background Skin temperature assessments comprise conductive and contact‐free techniques. Comparison between conductive data loggers and contact‐free thermometry after the application of revulsive products is scarce. This study aimed to compare iButton data loggers with an infrared thermometer after the application of two revulsive products. Second...
Article
Full-text available
Background The transition to parenthood is a cornerstone event for both parents, potentially leading to relevant changes in lifestyle and behaviour. In women, the metabolic changes during and after pregnancy and the deleterious effects of excessive gestational weight gain and postpartum weight retention have been extensively described. However, the...
Article
Full-text available
The present study examined physiological responses, hitting accuracy and step count during a tennis drill on both clay and hard courts. Twenty elite tennis players performed two identical ball machine led drills. Maximum and mean heart rate, energy expenditure, playing intensity (MET values) and step count were measured using the Polar RCX-5 device...
Conference Paper
Full-text available
Hypothesis / aims of study Urinary incontinence (UI) is not a life threatening condition but it does have a negative impact on many aspects of a woman's quality of life such as social, physical, psychological and sexual aspects. Current evidence has shown that stress urinary incontinence (SUI) does not occur exclusively in the postnatal period or i...
Article
Objective This study evaluated self-trained basic life support (BLS) skills acquired from an e-learning platform to design a complementary in-class training approach. Design In total, 41 students (15–17 years, 29 men) participated in a pilot study on self-training in BLS. After 6 weeks, a compression-only cardiopulmonary resuscitation (CPR) test a...
Article
The aim of this study was to investigate differences in joint power generation between well-trained adult athletes and young sprinters from block clearance to initial contact of second stance. Eleven under 16 (U16) and 18 under 18 (U18) promising sprinters executed an explosive start action. Fourteen well-trained adult sprinters completed the exact...
Article
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Objective: This explorative study examined potential performance indicators through a correlational analysis between morphological measures and international ranking within each alpine ski event for each gender separately. Methods: A cross-sectional sample of 58 elite alpine skiers were allocated into a technical or speed event group based on their...
Article
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Background: The hydration status of elite female soccer players is a concern, especially during high-volume training periods or tournaments. Furthermore, scientific literature on this topic is scarce to non-existent. Therefore, the primary aim of this study was to evaluate the hydration status in elite youth female soccer players during an officia...
Article
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Background/aim: Knowledge of local sweating patterns is of importance in occupational and exercise physiology settings. The recently developed closed chamber condenser technology (Biox Aquaflux(®) ) allows the measurement of evaporative skin water loss with a greater measurement capacity (up to 1325 g/h/m(2) ) compared to traditional evaporimeters...
Article
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A recommended field method to assess body composition in adolescent sprint athletes is currently lacking. Existing methods developed for non-athletic adolescents were not longitudinally validated and do not take maturation status into account. This longitudinal study compared two field methods, i.e., a Bio Impedance Analysis (BIA) and a skinfold ba...
Article
The aim of this study was to relate the contribution of lower limb joint moments and individual muscle forces to the body centre of mass (COM) vertical and horizontal acceleration during the initial two steps of sprint running. Start performance of seven well-trained sprinters was recorded using an optoelectronic motion analysis system and two forc...
Article
Purpose: Unrefreshing sleep and lowered physical activity are commonly observed in chronic fatigue syndrome (CFS) patients, but how they might influence each other remains unexplored. Therefore, this study simultaneously examined the exercise capacity, sleep characteristics and physical activity in CFS patients. Methods: Handgrip strength and cy...
Conference Paper
Introduction: In the implementation of cardio pulmonary resuscitation (CPR) in the Flemish school curriculum and within the given limitations in time and training equipment, there is a need for alternative training strategies. Literature suggests laypeople can train themselves in basic life support (BLS) and AED-skills using a web-based micro-simul...
Article
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Limited scientific evidence suggests that physical activity is directly related to cognitive performance in patients with chronic fatigue syndrome (CFS). To date, no other study has examined the direct relationship between cognitive performance and physical fitness in these patients. This study examined whether cognitive performance and physical fi...
Article
Cardiopulmonary resuscitation (CPR) training at school is recommended. Limited school resources prevent implementation. The learning efficacy of low-cost training strategies is unknown. To evaluate the efficacy of different CPR learning strategies using low-cost didactic tools. Children (n=593, 15-16 years) were randomized to four training conditio...
Article
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This study aimed to estimate nitrogen balance and protein requirements in adolescent sprint athletes as a function of growth rate and physical development. Sixty adolescent sprint athletes were followed up biannually over a 2-yr period. Individual growth curves and age at peak height velocity were determined. Skeletal muscle mass (SMM) was estimate...
Article
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Aim: The aim of the present study was to describe the effect of physical changes during adolescence on sprint start and countermovement jump (CMJ) performance. Methods: Twenty-eight girls and 25 boys (15.0±1.6 and 14.7±1.9 years at start respectively) were measured twice with a one year interval. Anthropometric data allowed skeletal muscle mass...
Presentation
Introduction: Sports performance in adolescents can be influenced by maturity status. Especially in sports where body height and power matter, young successful athletes appear to be early mature. This study examined the influence of anthropometric characteristics and maturity on jump height in elite adolescent volleyball players. Methods: Forty-two...
Article
Full-text available
Abstract The aim of this study was to characterize the specifics of the sprint technique during the transition from start block into sprint running in well-trained sprinters. Twenty-one sprinters (11 men and 10 women), equipped with 74 spherical reflective markers, executed an explosive start action. An opto-electronic motion analysis system consis...
Article
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This study aimed to assess micronutrient intake and supplement use in adolescent sprint athletes. Anthropometrics, micronutrient intake and supplement use of 60 adolescent sprint athletes were recorded every six months over a 3-year period. Age at start was 14.8 ± 1.6 years for the female and 14.7 ± 1.9 years for the male athletes. Over the 3 years...
Article
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The aim of this study was to examine the physical characteristics and somatotype of junior and senior athletes in relation to sprint start and acceleration performance. Nineteen female junior, 23 male junior, 9 female senior, and 16 male senior sprint athletes performed three maximal 20-m sprints. The starting blocks were instrumented to measure fo...
Article
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The aim of this study was to determine the impact of demographic, socioeconomic and nutritional determinants on daily versus non-daily sugar-sweetened and artificially sweetened beverage consumption. Cross-sectional design in 1852 military men. Using mailed questionnaires, sugar-sweetened and artificially sweetened beverage consumption was recorded...
Article
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Epidemiological studies indicate that a well balanced vegetarian diet offers several health benefits including a lower prevalence of prosperity diseases in vegetarians compared to omnivores. It was the purpose of the present study to compare nutritional and physical characteristics in matched samples of institutionalized vegetarian (V) and non-vege...
Article
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This study aimed to assess total energy expenditure (TEE) and specific habitual physical activities in adolescent sprint athletes. Two methods used to estimate TEE, an activity diary (AD) and SenseWear armband (SWA), were compared. Sixteen athletes (6 girls, 10 boys, mean age 16.5 ± 1.6 yr) simultaneously wore a SWA and completed an AD and food dia...
Article
Bioelectrical impedance analysis (BIA) is used for the estimation of the amount of body fat. We evaluated the influence of the stratum corneum hydration at the contact areas used for BIA on the body fat estimation. Stratum corneum hydration was measured at the sole of the right foot and the palm of the right hand before and after contact with the T...
Article
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Sprinters are advised to include additional protein sources in their diet. Basal metabolism and vigorous physical activities generate hydrogen ions that need to be buffered. The present follow-up study estimates the dietary potential renal acid load (PRAL) and net endogenous acid production (NEAP) in adolescent sprint athletes. Seven-day food diari...
Article
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Macronutrient intake, height, weight, and body composition of 60 adolescent sprint athletes were estimated every 6 months over 3 years. Seven-day food records were analysed based on the Belgian and Dutch food databanks. The age of participants at the start of the 3-year study was 14.8 ± 1.6 years for female athletes and 14.7 ± 1.9 years for male at...
Article
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Purpose – The purpose of this paper is to describe health-related factors and behaviors associated with soy consumption and to present a better identification of a soy consumer's profile at meso-level. Design/methodology/approach – A total of 104 women and 49 men, 22-77 years old and employed at the Vrije Universiteit Brussel, participated in the s...
Article
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A first objective of the present study was to estimate the acid-base balance of the food intake in vegetarians and non-vegetarians. A second objective was to evaluate if additional input of specific food items on the existing potential renal acid load (PRAL) list was necessary for the comparison of the two dietary patterns. Thirty vegetarians betwe...
Article
Journal of Sports Sciences Publication details, including instructions for authors and subscription information: Abstract The aim of this study was to relate the contribution of lower limb joint moments and individual muscle forces to the body centre of mass (COM) vertical and horizontal acceleration during the initial two steps of sprint running....
Article
Full-text available
To investigate dietary habits of Flemish adolescent track and field athletes using a 7-d weighed-food record. Besides adequacy for growth, development, and physical performance, dietary health aspects were considered. Twenty-nine girls and 31 boys, with minimum 2 yr of track and field training practice, were recruited. All participants had daily br...
Article
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Purpose – It is the aim of the present paper to describe the nutritional intake, the physical performance capacity and certain anthropometric variables of a group of schoolchildren (n=297) aged seven to 12 years. The findings on this population may be used to give advice in specific marketing situations. Design/methodology/approach – The subjects w...
Article
Full-text available
Methods: From our data base (300 vegetarians en 400 non-vegetarians) we selected 30 vegetarians between the 18 and 24 years of age. They were matched according to sex, age and BMI with 30 non- vegetarians. Using 3-days food records we estimated the acid-base status of the nutritional intake using the PRAL method as proposed by Remer et al (2003). S...

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