Christoph Höchsmann

Christoph Höchsmann
Technische Universität München | TUM · Department of Sport and Health Sciences

Ph.D.

About

63
Publications
5,071
Reads
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428
Citations
Citations since 2016
63 Research Items
427 Citations
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2016201720182019202020212022020406080100120140
2016201720182019202020212022020406080100120140
Introduction
Postdoctoral research fellow with research interests in treating physical inactivity and unhealthy eating behaviors via tailored, technology-assisted behavioral lifestyle interventions.
Additional affiliations
November 2021 - present
Technische Universität München
Position
  • Research Associate
January 2019 - September 2021
Pennington Biomedical Research Center
Position
  • PostDoc Position
January 2014 - December 2018
University of Basel
Position
  • Research Assistant
Education
September 2014 - September 2018
University of Basel
Field of study
  • Sport Science
September 2011 - September 2013
University of Basel
Field of study
  • Exercise and Health Science
September 2008 - September 2011
University of Basel
Field of study
  • Exercise and Health Science

Publications

Publications (63)
Poster
BACKGROUND: Differences in weight loss between isocaloric high-carbohydrate and high-fat diets are generally small; however, weight loss responses vary within diet groups. Genotype patterns may modify the effects of diets, but findings are equivocal. We investigated whether weight loss on a diet concordant with one’s presumed genotype (fat-responsi...
Article
The ACSM metabolic equations have been used to estimate energy expenditure (EE) during exercise; yet limited evidence supports their accuracy in overweight/obese and sedentary individuals, especially during aerobic exercise training. PURPOSE: Evaluate the relationship between measured and estimated EE over a 24-wk exercise intervention and determi...
Presentation
INTRODUCTION: Exercise is recommended for weight management, yet weight loss from exercise is often less than expected based on measured energy expenditure. This is primarily due to compensatory energy intake, which occurs in most exercisers and overrides the appetite-suppressing effects of acute exercise. Exercising in a fasted state seems to be a...
Article
INTRODUCTION: Electronic cigarettes (ECIGs) heat a nicotine-containing liquid to produce an inhalable aerosol. ECIG power (wattage) and liquid nicotine concentration are two factors that predict nicotine emission rate (“flux”). These factors can vary greatly across devices and users. The purpose of this study was to examine ECIG device and liquid h...
Article
BACKGROUND: Intensive lifestyle interventions (ILIs) stimulate weight loss in underserved patients with obesity, but the mediators of weight change are unknown. OBJECTIVES: Identify the mediators of weight change during an ILI versus usual care (UC) in underserved patients with obesity. DESIGN: The Promoting Successful Weight Loss in Primary Car...
Article
Full-text available
Objectives The energy intake response to exercise is highly variable and energy (over-) compensation via increased post-exercise energy intake occurs in some individuals but not others. In explorative analyses, we aimed to identify biological and behavioral predictors of post-exercise ad libitum energy intake and whether these predictors differ fro...
Poster
PURPOSE: Over 40% of adults in the United States have obesity. Obesity is associated with leading causes of preventable death, including heart disease, and psychosocial challenges, including lower quality of life (QOL). Weight loss of 5-10% of body weight significantly improves health and quality of life, though these findings are primarily derived...
Article
Full-text available
BACKGROUND: Accurately assessing dietary intake is crucial for understanding how diet affects a person’s health. In large cohorts, paper-based dietary assessment tools (DAT) such as food recalls or food frequency questionnaires have emerged as valid tools with a low burden for participants. OBJECTIVE: To validate a visually aided DAT for use in st...
Poster
OBJECTIVE: Energy intake in response to exercise is highly variable. While some individuals show reduced energy intake post-exercise, allowing for an exercise-induced energy deficit, others show increased energy intake, (over-) compensating the expended energy. In an exploratory analysis, we aimed to identify biological and behavioral predictors of...
Poster
BACKGROUND. Vaping devices differ in nicotine flux, the amount of nicotine emitted per unit time. Differences in flux may impact dependence and difficulty quitting. OBJECTIVE. Using observational data, we explored cross-sectional relationships of flux with cessation outcomes among treatment-seeking vapers. Brand was used as a proxy for flux based o...
Poster
SIGNIFICANCE: E-cigarette device and liquid characteristics determine the rate at which nicotine is emitted from the e-cigarette (i.e., nicotine flux) and thus, likely influence users’ nicotine dependence. The aim of this study was to assess associations between nicotine flux and the E-cigarette Dependence Scale (EDS). METHODS: Data were obtained...
Poster
SIGNIFICANCE: Accurately measuring vaping and smoking behavior in real-world settings is important to inform tobacco regulatory science. Additionally, quantifying nicotine flux (i.e., nicotine emission rate) from an Electronic Nicotine Delivery System (ENDS) requires information on device (e.g., power and settings) and ENDS liquid characteristics,...
Article
Full-text available
Background The physiological benefits associated with corporately sponsored weight loss programs are increasingly well documented. However, less is known about how these programs affect employees’ quality of life (QoL). The purpose of the present analysis was to examine the association between weight loss, change in physical activity, and change in...
Preprint
Full-text available
Energy intake in the post-exercise state is highly variable and compensatory eating – i.e., (over‑) compensation of the expended energy via increased post-exercise energy intake – occurs in some individuals but not others. We aimed to identify predictors of post-exercise energy intake and compensation. In a randomized crossover design, 57 healthy p...
Article
BACKGROUND: The Comprehensive Assessment of Long-term Effects of Reducing Intake of Energy (CALERIE™) phase 2 trial tested the effects of two years of 25% calorie restriction (CR) on aging in humans. CALERIE 2 was one of the first studies to use a graph of predicted weight loss to: 1) provide a proxy of dietary adherence, and 2) promote dietary adh...
Article
BACKGROUND: E-cigarette device and liquid characteristics, such as electrical power output and liquid nicotine concentration, determine the rate at which nicotine is emitted from the e-cigarette (i.e., nicotine flux), and thus are likely to influence user nicotine dependence. We hypothesize that nicotine flux would be associated with the e-cigarett...
Article
The physiological and metabolic effects of experimental overfeeding have been extensively studied, yet only few studies have assessed overfeeding effects on eating behaviors and psychological constructs. We analyzed two 8-week overfeeding studies, the PROOF Study (N = 25; 16 males; 16 African American; 24.1 years; 25.1 kg/m², inpatient) and the EAT...
Poster
BACKGROUND: Exercise training induces weight compensation (i.e., less weight loss than expected), yet compensatory responses are varied. This analysis tested whether baseline eating attitudes and behaviors predict compensation and energy intake changes during aerobic exercise training. METHODS: Adults with overweight or obesity were randomized for...
Article
Full-text available
We conducted an online survey to examine the preference, expected burden, and willingness of people to use four different methods of assessing food and alcohol intake such as food/drink record, 24-h recall, Remote Food Photography Method© (RFPM, via SmartIntake® app), and a novel app (PortionSize®) that allows the in-app portion size estimation of...
Article
Caloric restriction (CR) improves markers of aging in humans, but it is not known if the fat mass and obesity-associated gene (FTO) rs9939609 single nucleotide polymorphism (SNP), which is associated with increased appetite and energy intake, influences adherence to prolonged CR. Utilizing data from the two-year Comprehensive Assessment of Long-ter...
Article
INTRODUCTION: Our primary aim was to investigate the association between initial weight change and longer-term changes in weight and compensation (predicted weight loss - observed weight loss) during exercise. As secondary aims, we investigated if initial weight change was related to change in cardiometabolic risk markers and energy balance modula...
Article
PURPOSE: The spread of COVID-19 and the associated stay-at-home orders and shutdowns of gyms and fitness centers has drastically influenced health behaviors leading to widespread reductions in physical activity (PA). The recent Call to Action from the American College of Sports Medicine has promoted "innovative strategies to promote PA during the C...
Article
OBJECTIVES: Persons with food insecurity (FI) have been shown to have lower fruit and vegetable (F/V) intake and higher fat intake compared to individuals with food security (FS). However, currently there are limited data as to whether diet can be improved during weight loss interventions in persons with FI. METHODS: Patients with obesity (BMI 30...
Presentation
This presentation was part of a symposium entitled “Break up sedentarism – low threshold entry into physical activity”. The focus of the presentation was on three low-threshold forms of physical activity that can all be easily incorporated into the daily routine and encourage physical activity in different everyday settings: (1) The E-Bike as a way...
Article
Full-text available
Purpose: Calorie restriction (CR) is an effective treatment for obesity-related liver and metabolic disease. However, CR studies in individuals without obesity are needed to see if CR could delay disease onset. Liver biomarkers indicate hepatic health and are linked to cardiometabolic disease. Our aim was to examine the effects of a 2-year CR inte...
Poster
INTRODUCTION: Electronic cigarettes (ECIGs) heat a nicotine-containing liquid to produce an inhalable aerosol. ECIG power (wattage) and liquid nicotine concentration are two factors that predict nicotine emission rate (“flux”). However, many ECIG users do not know how these factors interact to influence nicotine exposure. We asked ECIG users about...
Article
BACKGROUND: Intensive lifestyle interventions (ILIs) are the first-line approach to effectively treat obesity and manage associated cardiometabolic risk factors. Because few people have access to ILIs in academic health centers, primary care must implement similar approaches for a meaningful effect on obesity and cardiometabolic disease prevalence....
Article
Office-based activity reduces sedentariness, yet no randomized controlled trials (RCTs) have assessed how such activity influences visceral adipose tissue (VAT). This study examined the effect of an office-based, multicomponent activity intervention on VAT. The WorkACTIVE-P RCT enrolled sedentary office workers (body mass index: 31.4 (standard devi...
Article
Full-text available
BACKGROUND: Family-based behavioral therapy is an efficacious approach to deliver weight management counseling to children and their parents. However, most families do not have access to in-person, evidence-based treatment. We previously developed and tested DRIVE (Developing Relationships that Include Values of Eating and Exercise), a home-based p...
Poster
Approximately 17% of children in the United States have obesity, and the U.S. Preventive Services Task Force recommends comprehensive behavioral family-based weight management programs to treat childhood obesity. Family-based programs are efficacious, though families must present to treatment centers, many of which are in centers of excellence, to...
Conference Paper
INTRODUCTION: Caloric restriction (CR) improves cardiometabolic risk, even among individuals without obesity. However, it is unclear whether these aging-related benefits are mediated by weight loss. Mediation analyses inform mechanisms underlying relationships between an exposure and outcome. Using mediation analyses, our aim was to test if 2-year...
Presentation
Many psychological, behavioral, and quality of life (QOL)-related factors have been shown to be associated with higher body weight and body mass index (BMI). However, evidence for QOL as an obesity treatment predictor is to date equivocal due to conflicting results. We aimed to assess the association between QOL and BMI at baseline and also between...
Article
Accurately quantifying dietary intake is essential to understanding the effect of diet on health and evaluating the efficacy of dietary interventions. Self-report methods (e.g., food records) are frequently utilized despite evident inaccuracy of these methods at assessing energy and nutrient intake. Methods that assess food intake via images of foo...
Preprint
BACKGROUND Family-based behavioral therapy is an efficacious approach to deliver weight management counseling to children and their parents. However, most families do not have access to in-person, evidence-based treatment. We previously developed and tested DRIVE (Developing Relationships that Include Values of Eating and Exercise), a home-based pa...
Poster
INTRODUCTION: Physical activity (PA) is linked to better weight control and eating behaviors in the general population, but these associations may be altered in a racially and socioeconomically diverse sample at risk for metabolic disease. We examined how PA levels are related to markers of adiposity and eating behaviors in a diverse sample of indi...
Article
OBJECTIVE: This study aimed to determine whether different measures of habitual physical activity (PA) at baseline predict weight change, weight compensation, and changes in energy intake (EI) during a 24-week supervised aerobic exercise intervention. METHODS: Data from 108 participants (78 women; 48.7 [SD: 11.6] years; BMI 31.4 [SD: 4.6] kg/m2...
Presentation
BACKGROUND: Exercise is recommended for weight management; however, exercise-induced weight loss often is less than expected based on measured energy expenditure. This discrepancy is called weight compensation and results primarily from exercise-induced increases in energy intake. It is unknown if factors pertaining to one’s lifestyle prior to star...
Article
OBJECTIVE: This study assessed the validity of a consumer activity wristband, a smartphone, and a research-grade accelerometer to measure steps in a free-living setting. APPROACH: Thirty healthy adults were equipped with two Garmin Vivofit (non-dominant wrist), one iPhone SE (right pants pocket), three ActiGraph wGT3X+ (two on the hip, one on the...
Poster
BACKGROUND: Obesity, particularly when combined with the metabolic syndrome (MetS), is associated with reduced quality of life (QOL). Underserved and minority populations suffer from a disproportionately high prevalence of obesity and related comorbidities. However, due to low health literacy, underserved individuals may be unaware of obesity-relat...
Poster
BACKGROUND: Fatigue is broadly defined as a perceived lack of energy that interferes with general functioning and disrupts usual routines. Fatigue has been linked with obesity in the general population, yet it is not known if this relationship holds in an underserved cohort. Additionally, the potential mechanisms underlying this relationship are no...
Article
Full-text available
PURPOSE: Heart rate recovery (HRR) after exercise is an independent risk factor for cardiovascular disease and mortality. Regular aerobic exercise can improve HRR, yet little is known regarding the dose necessary to promote increases. The aim was to assess the impact of different doses of vigorous-intensity aerobic exercise on HRR in individuals w...
Article
Full-text available
African Americans (AAs) have a higher obesity risk than Whites; however, it is unclear if appetite-related hormones and food intake are implicated. We examined differences in appetite-related hormones, appetite, and food intake between AAs (n = 53) and Whites (n = 111) with overweight or obesity. Participants were randomized into a control group or...
Article
INTRODUCTION: Many type 2 diabetes patients show insufficient levels of physical activity and are often unmotivated to change physical activity behaviors. This study investigated whether a newly developed smartphone game delivering individualized exercise and physical activity promotion through an elaborate storyline can generate sustained improvem...
Article
Full-text available
BACKGROUND: Wrist-worn accelerometers are increasingly used in epidemiological studies to record physical activity. The accelerometer data are usually only analyzed if the convention for compliant wear time is met (i.e. ≥ 10 h per day) but the algorithms to detect wear time have been developed based on data from hip-worn devices only and have not b...
Article
BACKGROUND: Regular physical activity (PA) is an essential component of a successful type 2 diabetes treatment. However, despite the manifest evidence for the numerous health benefits of regular PA, most patients with type 2 diabetes remain inactive, often due to low motivation and lack of PA enjoyment. A recent and promising approach to help overc...
Article
PURPOSE: To examine the validity of popular smartphone accelerometer applications and a consumer activity wristband compared to a widely-used research accelerometer while assessing the impact of the phone's position on the accuracy of step detection. METHODS: Twenty volunteers from two different age groups (Group A: 18-25 years, n=10; Group B 45...
Presentation
INTRODUCTION: Activity trackers can increase physical activity among unmotivated inactive individuals. Commercial PA monitors, such as activity wristbands and smartwatches, and especially smartphones with their various applications have increasingly gained popularity in recent years and are most commonly used for PA assessment today . The fact that...
Article
OBJECTIVES: To examine cardiorespiratory exertion during mini trampoline exercises of different intensities in both endurance-trained athletes and overweight-obese adults. METHODS: Physically healthy participants (Group A: normal-weight, endurance-trained athletes; Group B: inactive, overweight-obese adults) participated in two measurement appoi...
Presentation
Exergaming is a novel approach to increase physical activity (PA) motivation among inactive individuals such as patients with type 2 diabetes. In preliminary investigations, we were able to show that (1) selected exercises of conventional exergames (Nintendo Wii) have the potential to produce cardiorespiratory fitness-improving exercise intensities...
Article
OBJECTIVES: Over the past decade, several excellent guidelines have been published on how to enhance the quality of PhD education in Europe. Aimed primarily at preparing students for innovative roles in their fields, they include variously structured approaches to curricular offerings, as well as other program components applicable across specialti...
Presentation
BACKGROUND: Finding motivating, low-threshold forms of physical activity (PA) is of great importance especially for inactive, overweight individuals who often lack the motivation to start and adhere to regular PA. Modern mini trampoline rebounding with the joint-friendly trampolines and trainings that often take place in group settings while incorp...
Presentation
BACKGROUND: Activity trackers have been shown to motivate inactive individuals to become more physically active. In recent years, especially wrist-worn activity trackers have increasingly gained popularity because of their greater wearing comfort compared to hip-worn devices, while the thereby improved wear-time compliance is indispensable for an a...
Article
Full-text available
PURPOSE: To assess which type of evening light exposure has the greatest effect on reaction time and maximum handgrip strength. These were pre-specified secondary outcomes in a trial which primarily investigated the influence of light on cycling performance. METHODS: Seventy-four male athletes were allocated at random to either bright light (BRI...
Article
Many sports competitions take place during television prime time, a time of the day when many athletes have already exceeded their time of peak performance. We assessed the effect of different light exposure modalities on physical performance and melatonin levels in athletes during prime time. Seventy-two young, male elite athletes with a median (i...
Article
OBJECTIVE: To assess if active commuting with an electrically assisted bicycle (e-bike) during a 4-week period can induce increases in cardiorespiratory fitness measured as peak oxygen uptake (VO2peak) in untrained, overweight individuals, and if these changes are comparable with those induced by a conventional bicycle. DESIGN: Four-week randomi...
Article
Full-text available
Background: Exergaming is a novel approach to increase motivation for regular physical activity (PA) among sedentary individuals such as patients with type 2 diabetes mellitus (T2DM). Because existing exergames do not offer fitness-level adjusted, individualized workouts and are normally stationary (TV bound), thus not enabling PA anywhere and at...
Presentation
INTRODUCTION: Electrically assisted bicycles (e-bikes) have gained more and more popularity over the past years.Especially for individuals with low regular physical activity and a low cardiorespiratory fitness, such as the elderly or overweight individuals, the motor-induced lower perceived exertion while riding makes e-bikes an attractive alternat...
Article
OBJECTIVE: To evaluate the suitability of the Wii Fit Plus exergame as a tool to improve cardiorespiratory fitness in individuals with type 2 diabetes. DESIGN: Experimental cross-sectional study. SETTING: Controlled laboratory. PARTICIPANTS: Twelve type 2 diabetic patients (10 male and 2 female; age, 60.2 ± 7.7 years; body mass index, 30.9 ±...
Article
Full-text available
BACKGROUND: The majority of patients with overweight and type 2 diabetes show insufficient levels of daily physical activity (PA) and usually are among the least likely to engage in or adhere to any form of generic PA. Active video games (exergames) may be a solution to motivate these individuals to overcome their sedentary lifestyle. OBJECTIVES: T...
Presentation
INTRODUCTION: The majority of patients with overweight and type 2 diabetes are insufficiently physically active. Despite the various physiological and psychological benefits obtained by physical activity (PA), overweight and type 2 diabetic patients generally are not motivated to engage in regular PA, and long-term adherence to PA is very poor. Com...

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Projects

Projects (9)
Project
To assess the validity and feasibility of image-assisted methods for dietary assessment
Archived project
To examine the cardiorespiratory exertion using different forms of mini-trampoline exercise in both endurance-trained athletes and overweight individuals and to assess if these exercises could elicit exercise intensities for both target groups that concur with current guidelines.
Archived project
To determine if exposure to light in the evening has a positive influence on physical performance regarding endurance, strength, and reaction time.