Unobtrusive electromyography-based eating detection in daily life: A new tool to address underreporting?

Blechert, Jens; Liedlgruber, Michael; Lender, Anja; Reichenberger, Julia; Wilhelm, Frank H.

doi:10.1016/j.appet.2017.08.008

Cited by 21 publications

(22 citation statements)

References 43 publications

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“…Also, we did not assess participants’ knowledge about food healthiness and which aspects (e.g., calorie content) they considered. In order to corroborate the current results, objective assessments of eating behaviour (e.g., electromyography‐based chewing or swallowing activity or doubly labelled water method; e.g., see Blechert et al ., ) might aid in obtaining a rough amount of calorie intake as one approach to healthy eating. To measure healthy eating via the amount of intake of different food categories (e.g., vegetables vs. sweets), assessing pictures of the participants’ foods or detailed food diaries could aid in more objectively clustering foods in healthy versus unhealthy.…”

Section: Discussionmentioning

confidence: 97%

Bidirectional relationship of stress and affect with physical activity and healthy eating

Schultchen

Reichenberger

Mittl

et al. 2019

British J Health Psychol

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Objectives Physical activity and healthy eating seem to be protective against experiencing stress and negative affect as well as increase positive affect. At the same time, previous studies showed that people reduce salutogenic behaviours such as physical activity and healthy eating in the face of stress and negative affect while increasing such behaviours in the context of positive affect. Due to daily fluctuations of these behaviours, the present study examined these relationships in daily life using ecological momentary assessment (EMA). Design and methods Fifty‐one university students responded to six daily prompts during 7 days via smartphone‐based EMA. Items examined stress, emotional experience, physical activity duration, and healthy eating. Results Higher stress and negative affect, as well as lower positive affect, were related to a reduction in subsequent physical activity. Higher physical activity levels, in turn, were associated with less subsequent stress and negative affect, as well as more positive affect. No such effects for stress and affect on healthy eating or vice versa were found. Conclusions Engaging in physical activity is related to better mood and less stress/negative affect over the next several hours in daily life. Prevention efforts therefore may benefit by focusing on promoting physical activity, particularly when stress/negative affect is high to ‘break the cycle’ of inactivity, stress, and negative affect. Potential effects of healthy eating might be more subtle and characterized by interindividual differences or state effects. What is already known on this subject? Physical activity can reduce stress as well as negative emotions and can enhance positive emotions. People tend to eat less healthy food during stressful times, and healthy eating can increase general health. Physical activity and healthy eating have been mostly assessed separately and through retrospective methods. What does this study add? This is an EMA study investigating bidirectional effects of stress, emotions, and salutogenic behaviour. After physical activity, people felt less stressed/negative and more positive; feeling better and less stressed resulted in more physical activity. Healthy eating was not associated with stress or emotion level and vice versa.

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Section: Discussionmentioning

confidence: 97%

Bidirectional relationship of stress and affect with physical activity and healthy eating

Schultchen

Reichenberger

Mittl

et al. 2019

British J Health Psychol

Self Cite

200

135

View full text Add to dashboard Cite

show abstract

“…experimenter measured weight and food protocols. Novel assessment tools like (e.g., electromyogram-based eating detection; Blechert, Liedlgruber, Lender, Reichenberger, & Wilhelm, 2017) would provide objective and real-time on eating and, crucially -chewing behavior. Third, the mostly female sample might limit the generalizability of these findings.…”

Section: Discussionmentioning

confidence: 99%

A combined mindfulness–prolonged chewing intervention reduces body weight, food craving, and emotional eating.

Schnepper

Richard

Wilhelm³

et al. 2019

Journal of Consulting and Clinical Psychology

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Objective: Conventional weight loss programs that induce a calorie deficit mostly fail in long-term weight reduction and disadvantageous eating styles often remain unchanged. Mindfulness interventions therefore redirect the focus away from the weight loss goal and toward the process of eating itself. By eating more mindfully, at a slower pace, and with an enhanced focus on bodily sensations, participants might not only indirectly reduce their daily calorie intake but also eat less craving-and stress-driven. Method: This study randomized participants to either intervention (n=23) or waitlist group (n=23) to investigate the effectiveness of a four-session mindfulness and prolonged chewing intervention. Dependent variables were body mass index (BMI), food craving, as well as emotional, external, and intuitive eating. Results: Across the eight weeks of intervention, significant group×measurement time interactions pointed to decreases in BMI and disadvantageous eating styles (food cravings, emotional, and external eating) and an increase in intuitive eating in the intervention group. Weight loss in the intervention group was maintained after a 4-week follow up. Conclusion: A combination of mindfulness and a specific chewing training that increases awareness of satiety strongly impacted energy intake and related eating styles. Such interventions obviate loss-oriented calorie reduction and foster enjoyment and focused tasting of foods. Conventional weight loss diets might incorporate such brief interventions in more long-term dieting trials. Public Health Statement: Weight control is central to modern eating. Modifying how to eat rather then what to eat adds a new perspective to weight control. This study showed that prolonged chewing embedded in supporting mindfulness exercises not only benefits body weight but also supports the development of healthy eating styles.

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“…Other studies used multiple self-report methods to collect ground-truth eating activity. Six studies used both an eating or activity log in addition to a marker/push button 18,36,40,41,43,45 . Two studies, both reported in Mirtchouk et al 52 , had participants use a combination of eating logs, voice notes ("spoken annotations"), and self-taken photos at the start and end of meals.…”

Section: Ground-truth Methodsmentioning

confidence: 99%

“…The second most frequently utilized wearable sensor was a gyroscope (device that determines orientation) (N = 15) 33,38,39,46,48,49,51,53,[56][57][58] , followed by a microphone (N = 8) 34,35,47,52,54,60,61 , a piezoelectric sensor (N = 7) 18,40-42,44,45 , a RF transmitter and receiver (N = 6) 18,40,41,44,45 , and a smartwatch camera (N = 5) 56,57 (Table 2). EMG electrodes 36,63,64 , a motion sensor 52 , and an infrared proximity sensor 33,34,37 were used in three studies each. Wearable video cameras 50,55 and GPS 53,54 were used in two studies.…”

Section: Wearable Sensorsmentioning

confidence: 99%

Automatic, wearable-based, in-field eating detection approaches for public health research: a scoping review

et al. 2020

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Dietary intake, eating behaviors, and context are important in chronic disease development, yet our ability to accurately assess these in research settings can be limited by biased traditional self-reporting tools. Objective measurement tools, specifically, wearable sensors, present the opportunity to minimize the major limitations of self-reported eating measures by generating supplementary sensor data that can improve the validity of self-report data in naturalistic settings. This scoping review summarizes the current use of wearable devices/sensors that automatically detect eating-related activity in naturalistic research settings. Five databases were searched in December 2019, and 618 records were retrieved from the literature search. This scoping review included N = 40 studies (from 33 articles) that reported on one or more wearable sensors used to automatically detect eating activity in the field. The majority of studies (N = 26, 65%) used multi-sensor systems (incorporating > 1 wearable sensors), and accelerometers were the most commonly utilized sensor (N = 25, 62.5%). All studies (N = 40, 100.0%) used either self-report or objective ground-truth methods to validate the inferred eating activity detected by the sensor(s). The most frequently reported evaluation metrics were Accuracy (N = 12) and F1-score (N = 10). This scoping review highlights the current state of wearable sensors' ability to improve upon traditional eating assessment methods by passively detecting eating activity in naturalistic settings, over long periods of time, and with minimal user interaction. A key challenge in this field, wide variation in eating outcome measures and evaluation metrics, demonstrates the need for the development of a standardized form of comparability among sensors/multi-sensor systems and multidisciplinary collaboration.npj Digital Medicine (2020) 3:38 ; https://doi.

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Unobtrusive electromyography-based eating detection in daily life: A new tool to address underreporting?

Cited by 21 publications

References 43 publications

Bidirectional relationship of stress and affect with physical activity and healthy eating

Bidirectional relationship of stress and affect with physical activity and healthy eating

A combined mindfulness–prolonged chewing intervention reduces body weight, food craving, and emotional eating.

Automatic, wearable-based, in-field eating detection approaches for public health research: a scoping review

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