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The Scientific Method

The Scientific Method

The scientific method is a detailed, empirical problem-solving process used by biologists and other scientists. This iterative approach involves formulating a question based on observation, developing a testable potential explanation for the observation (called a hypothesis), making and testing predictions based on the hypothesis, and using the findings to create new hypotheses and predictions.
Generally, predictions are tested using carefully-designed experiments. Based on the outcome of these...

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Electrical signals—sent from the sinoatrial (SA) node in the right atrial wall to the atrioventricular (AV) node between the right atrium and right ventricle—cause both atria to simultaneously contract. When the signal reaches the AV node, it pauses for approximately a tenth of a second, allowing the atria to contract and...

Exercise and Muscle Performance

Exercise and Muscle Performance

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.
Endurance exercises
Endurance exercises involve running, swimming, or cycling, which require repetitive movements with low force output. When a person engages in endurance exercise, a few noticeable changes occur in their skeletal muscles. For instance, the number of capillaries...

Exercise and Cardiovascular Response

Exercise and Cardiovascular Response

Exercise significantly impacts cardiovascular response, which is crucial for understanding patient health and designing effective treatment plans.
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...

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Exercise and Cardiac Output

Exercise and Cardiac Output

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.
Sustained exercise increases the muscles' oxygen demand, which can be...

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Related Experiment Video

Updated: Dec 25, 2025

Getting to Compliance in Forced Exercise in Rodents: A Critical Standard to Evaluate Exercise Impact in Aging-related Disorders and Disease

Getting to Compliance in Forced Exercise in Rodents: A Critical Standard to Evaluate Exercise Impact in Aging-related Disorders and Disease

Published on: August 22, 2014

An exercise in scientific writing for physicians in training.

Heather T Whittaker¹, Lashanda Skerritt², Matthew Dankner³

¹Department of Neurology and Neurosurgery, McGill University, Montréal, QC.

Clinical and Investigative Medicine. Medecine Clinique Et Experimentale

|April 6, 2020

Summary

Medical trainees enhanced critical thinking and scientific writing skills by participating in workshops focused on writing letters to the editor (LTEs). These sessions fostered engagement with scholarly literature and prepared students for academic medicine careers.

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Area of Science:

Medical Education
Scientific Communication
Academic Medicine

Background:

Strengthening critical thinking and scientific writing is crucial for medical trainees' research and academic careers.
Engaging with scientific literature and scholarly discourse is a key component of medical training.

Purpose of the Study:

To describe an interactive workshop designed to improve medical students' scientific writing and critical appraisal skills.
To encourage trainees to contribute to scholarly discourse through writing letters to the editor (LTEs).

Main Methods:

Students in an MD-PhD program identified high-impact journal articles for critique.
A 90-minute workshop facilitated the finalization and submission of students' LTEs.
Workshops were conducted in 2017 and 2019.

Main Results:

Student participation and informal feedback indicated positive perceptions of the workshops.
The workshops successfully enhanced trainees' critical appraisal and academic communication abilities.
Students contributed to the scientific literature through their submitted LTEs.

Conclusions:

Interactive LTE workshops are effective in developing essential skills for medical trainees.
Incorporating LTE workshops into curricula can foster physician engagement with research and scholarly communication.
Letters to the editor offer valuable clinical insights and promote academic career development.