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Exercise Stress Test01:26

Exercise Stress Test

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Exercise stress testing, commonly known as a treadmill test, is a noninvasive procedure used to evaluate cardiovascular function and diagnose heart conditions.
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Exercise and Muscle Performance01:27

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Exercise induces a range of adaptations in muscle tissue, depending on the type and duration of activity. Such physical training can be broadly categorized into two types: endurance exercises and resistance exercises.
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Regular physical activity is essential for maintaining cardiovascular health, with aerobic exercises being particularly effective. According to the American Heart Association, 150 minutes of moderate to intense aerobic exercise per week is recommended for a healthy heart. Aerobic activities may include brisk walking, running, bicycling, cross-country skiing, and swimming, ideally performed three to five times per week.
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Exercise significantly impacts cardiovascular response, which is crucial for understanding patient health and designing effective treatment plans.
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Heat is a widely used method to control microbial growth by targeting and denaturing cellular proteins, thereby killing or inactivating microbes. This method's effectiveness is quantified using parameters such as the thermal death point (TDP), thermal death time (TDT), and decimal reduction time (D value). TDP represents the lowest temperature at which all microorganisms in a liquid suspension are eliminated within 10 minutes, whereas TDT is the time necessary to achieve sterilization at a...
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Physical Methods for Controlling Microbial Growth: Radiation and Filtration01:26

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Radiation and filtration are essential tools for microbial control, targeting microorganisms through distinct mechanisms. Radiation eliminates microbes by damaging their DNA, either killing them or inhibiting their growth. Based on wavelength, radiation is classified into two types: nonionizing and ionizing radiation.Non-ionizing radiation, such as UV radiation (200–400 nm), is absorbed by DNA, causing defects that effectively disinfect surfaces, air, and water, including safety cabinets.
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Author Spotlight: Exploring the Impact of Reduced Resistance Exercise Volume on Metabolic Health
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Increasing Physical Activity in Mothers Using Video Exercise Groups and Exercise Mobile Apps: Randomized Controlled

Maya Nina Mascarenhas1,2, June Maylin Chan2,3, Eric Vittinghoff2

  • 1Osher Center for Integrative Medicine, University of California, San Francisco, San Francisco, CA, United States.

Journal of Medical Internet Research
|May 20, 2018
PubMed
Summary

This study found that a digital health intervention using videoconferencing and mobile apps effectively increased physical activity in inactive mothers. The program was feasible and acceptable, showing promising reductions in depression for participants.

Keywords:
Internetexercisehealth promotionmobile applicationsmothersrandomized controlled trialsocial supportvideoconferencing

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Area of Science:

  • Digital Health
  • Behavioral Science
  • Exercise Physiology

Background:

  • Maternal physical activity significantly declines post-childbirth.
  • Digital health technologies offer scalable, low-cost solutions for behavior change.
  • This study is the first to explore videoconferencing and mobile apps for mother's exercise groups.

Purpose of the Study:

  • To assess the feasibility, acceptability, and effectiveness of a physical activity intervention for mothers.
  • The intervention utilized an adaptive, socially supportive approach via videoconferencing and mobile apps.
  • To encourage exercise adherence among mothers transitioning to motherhood.

Main Methods:

  • An 8-week randomized trial compared a group exercise intervention with a waitlist control.
  • Participants used videoconferencing for real-time group exercise sessions and exercise mobile apps.
  • Recruitment occurred via social media and email listservs; outcomes measured via web-based questionnaires.

Main Results:

  • The intervention significantly increased moderate to vigorous physical activity (MVPA) by 50 minutes/week in previously inactive mothers.
  • Inactive mothers in the intervention group showed a significant increase in vigorous activity (19 minutes/week).
  • Participants reported statistically significant reductions in depression scores (-3.8).

Conclusions:

  • Group exercise via videoconferencing and mobile apps is a feasible and acceptable intervention for mothers.
  • The intervention successfully increased physical activity levels in inactive mothers.
  • Further research is needed to assess long-term maintenance and generalizability to diverse populations.