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An object falling without any air resistance under the influence of gravitational force is said to be in free-fall. For free-falling bodies, the acceleration due to gravity is constant, irrespective of their mass. Free-fall is experienced not only by objects falling downward, but also by all objects whose motion is influenced by gravitational force alone. The dynamics of free-fall motion can be calculated using kinematic equations of motion, since free-fall acceleration is constant.
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Free-falling Bodies: Introduction01:07

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All objects, neglecting air resistance, fall with the same acceleration towards the Earth's center due to the force exerted by the Earth's gravity. This experimentally determined fact is unexpected because we are so accustomed to the effects of air resistance and friction that we expect light objects to fall slower than heavier ones. People believed that a heavier object had a greater acceleration when falling until Galileo Galilei (1564–1642) proved otherwise. We now know this is...
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Design and Analysis for Fall Detection System Simplification
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Posthospital Falls Prevention Intervention: A Mixed-Methods Study.

Emma Renehan, Claudia Meyer, Rohan A Elliott

    Journal of Aging and Physical Activity
    |July 11, 2018
    PubMed
    Summary
    This summary is machine-generated.

    This pilot study tested a community program for older adults after hospital discharge to prevent falls. Findings suggest the multifactorial intervention is feasible and acceptable for reducing fall risk.

    Keywords:
    educationexercisemedicationolder

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    Area of Science:

    • Gerontology
    • Public Health
    • Geriatric Medicine

    Background:

    • Older adults discharged from the hospital face an elevated risk of falls.
    • Community-based interventions are crucial for post-discharge care and fall prevention.

    Purpose of the Study:

    • To assess the feasibility and acceptability of a community-delivered, multifactorial program for older adults post-hospital discharge.
    • To evaluate the program's impact on quality of life and fall-related outcomes.

    Main Methods:

    • A mixed-method study employing a randomized controlled trial and qualitative interviews.
    • Participants (≥65 years) hospitalized for falls were randomized into an intervention (exercise, medication review, education) or control group.
    • Follow-up assessments and interviews were conducted at 6 months.

    Main Results:

    • Ten out of thirteen participants completed the 6-month follow-up.
    • Participants presented with significant frailty, multimorbidity, polypharmacy, and high falls risk.
    • Qualitative data provided insights into the intervention's impact on quality of life and fall outcomes.

    Conclusions:

    • A community-delivered multifactorial program shows preliminary suitability for older adults post-hospital discharge following a fall.
    • Integrating a social component and leveraging community nursing organizations could enhance falls prevention strategies.