Implementation and Evaluation of the Personal Wellness Coach
ICDCSW '05 Proceedings of the Fifth International Workshop on Smart Appliances and Wearable Computing - Volume 05
MOPET: A context-aware and user-adaptive wearable system for fitness training
Artificial Intelligence in Medicine
Tracking Outdoor Sports --- User Experience Perspective
AmI '08 Proceedings of the European Conference on Ambient Intelligence
Artificial Intelligence in Medicine
Recognizing Upper Body Postures using Textile Strain Sensors
ISWC '07 Proceedings of the 2007 11th IEEE International Symposium on Wearable Computers
The WEKA data mining software: an update
ACM SIGKDD Explorations Newsletter
uWave: Accelerometer-based personalized gesture recognition and its applications
Pervasive and Mobile Computing
Tracking free-weight exercises
UbiComp '07 Proceedings of the 9th international conference on Ubiquitous computing
Preprocessing techniques for context recognition from accelerometer data
Personal and Ubiquitous Computing
What Can an Arm Holster Worn Smart Phone Do for Activity Recognition?
ISWC '11 Proceedings of the 2011 15th Annual International Symposium on Wearable Computers
Proceedings of the 6th International Conference on Body Area Networks
Proceedings of the 2013 ACM international joint conference on Pervasive and ubiquitous computing
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Regular exercise is one of the most important factors in maintaining a good state of health. In the past, different systems have been proposed to assist people when exercising. While most of those systems focus only on cardio exercises such as running and cycling, we exploit smartphones to support leisure activities with a focus on resistance training. We describe how off-the-shelf smartphones without additional external sensors can be leveraged to capture resistance training data and to give reliable training feedback. We introduce a dynamic time warping-based algorithm to detect individual resistance training repetitions from the smartphone's acceleration stream. We evaluate the algorithm in terms of the number of correctly recognized repetitions. Additionally, for providing feedback about the quality of repetitions, we use the duration of an individual repetition and analyze how accurately start and end times of repetitions can be detected by our algorithm. Our evaluations are based on 3,598 repetitions performed by ten volunteers exercising in two distinct scenarios, a gym and a natural environment. The results show an overall repetition miscount rate of about 1 % and overall temporal detection error of about 11 % of individual repetition duration.