e.g. mhealth
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Skip search results from other journals and go to results- 17 JMIR Formative Research
- 10 JMIR mHealth and uHealth
- 10 Journal of Medical Internet Research
- 6 JMIR Research Protocols
- 5 JMIR Serious Games
- 3 JMIR Human Factors
- 2 JMIR Cardio
- 2 JMIR Pediatrics and Parenting
- 1 JMIR Aging
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Research further indicates a decline in PA from early childhood to adolescence [13,14], which contributes to the increased rates of overweight and obesity in this population, as well as a decline in cardiorespiratory fitness (CRF) [15,16].
Physical inactivity and sedentary behavior (SB) have contributed to declining physical fitness (PF) levels among children [17].
JMIR Serious Games 2025;13:e60185
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While all forms of physical activity are beneficial, current evidence indicates that vigorous-intensity exercise may be particularly effective in improving body composition, cardiorespiratory fitness, and cardiometabolic health markers in adolescents [8,9]. Despite this, there remains a gap in studies exploring the relationship between physical activity behaviors and cardiovascular fitness among adolescents in Saudi Arabia.
JMIR Pediatr Parent 2025;8:e67213
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Mitochondrial Fitness Science Communication for Aging Adults: Prospective Formative Pilot Study
Our previous work revealed strong community interest in the topic of energy homeostasis, specifically, “how the body makes energy” [12], and we subsequently developed and tested a health and wellness program, AFRESH (Aging and Frailty: Resilience and Energy in the Second Half of Life), incorporating didactic content on mitochondrial fitness [13].
JMIR Form Res 2024;8:e64437
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Assessing Digital Phenotyping for App Recommendations and Sustained Engagement: Cohort Study
Nike Training Club Fitness offers home workouts to healthy recipes [29]. All apps were found through the Mobile Health Index and Navigation Database (MINDapps) developed by the Division of Digital Psychiatry [30]. For this study, we created a new filter on MINDapps to display the app(s) when participants were recommended or selected an app (Figure 2).
JMIR Form Res 2024;8:e62725
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The Fitbit DBCI included 5 components: a wearable health and fitness device (participant choice of Fitbit Inspire 2 tracker or Versa 3 smartwatch), a wireless weight scale (Fitbit Aria Air), the Fitbit app (provided basic tracking and goal setting functionalities), Fitbit Premium (provided additional advanced metrics and rich video content through the Fitbit app), and an on-demand human health coach (provided goal setting, action planning, and accountability support through secure, asynchronous, in-app messaging
JMIR Res Protoc 2024;13:e50378
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Technology-supported PA can be defined as the use of some form of interactive technology or digitally accessed information to promote PA through (1) the demonstration of PA (eg, prerecorded or live-streamed fitness classes), (2) interaction with a device that provides feedback (eg, smartphones and wearable fitness trackers), and (3) interaction with fitness professionals (eg, web-based personal training) or other users of technology-supported PA (eg, through a fitness app or social media platform) [24,27,29,30
J Med Internet Res 2024;26:e52302
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Reliability Issues of Mobile Nutrition Apps for Cardiovascular Disease Prevention: Comparative Study
fitness
JMIR Mhealth Uhealth 2024;12:e54509
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The concept of the maximum oxygen uptake (VO2max), established in 1923 by Hill and Lupton [1] is a fundamental measure in assessing cardiorespiratory fitness [2] and is also often used to determine an individual’s physical fitness level [3,4]. Cardiorespiratory fitness is defined as the ability of the circulatory and respiratory systems to supply oxygen to the muscles during sustained physical activity [3]. VO2max is also often used as a performance measure [5,6].
JMIR Biomed Eng 2024;9:e59459
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Physical education teachers, fitness professionals, pediatric exercise physiologists, athletes, and high school students from across the state of Michigan were recruited and hired to develop exercise videos that were developmentally appropriate and could be completed at home with no or minimal equipment. The types of exercises included were aerobic, isometric strength training, motor skills, sports skills, yoga, and mindfulness training.
JMIR Hum Factors 2024;11:e52496
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