National University of Singapore · FACULTY OF HEALTH & MEDICINE

NLM5002 Chap.6 Exercise Prescription and Risk

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Chapter 6 of 12 · NLM5002

Exercise Prescription and Risk

Exercise Planning

The exercise module begins with definitions and guidelines before moving into prescription. FITT specifies frequency, intensity, time and type. Risk stratification and updated pre-participation screening answer a separate safety question. Disease-specific plans must join those two decisions.

A previously inactive adult requests vigorous running after finding a generic schedule.

Current activity, symptoms, medical history, goals and preferences are missing. Screening may indicate assessment or modification. If participation is appropriate, the prescription begins below the aspirational endpoint and states progression rather than treating the final dose as the starting dose.

Exercise against FITT

Physical activity includes bodily movement that expends energy.

Exercise is planned, structured and repetitive. Lifestyle movement may be a feasible bridge when a formal programme is not. Intensity needs an operational measure; time and frequency jointly shape volume; type must fit purpose and ability.

Risks do not cancel benefits, but benefits do not justify ignoring warning signs.

Follow-up for Risk Stratification

Advance the dose only when tolerance and safety information permit.

Separate Movement from a Training Plan

Physical activity includes movement that raises energy expenditure, while exercise is planned, structured and repeated for a purpose. Both can matter.

Lifestyle movement may be the most feasible beginning for someone with low capacity, limited time or little interest in formal training. A prescription should not imply that only gym-based activity counts. Clarify the person's current movement, goals, preferences and constraints before selecting a form.

The definition guides the choice: an activity can support health even when it is not organised as exercise, while a training plan requires enough structure to be progressed and reviewed.

Screen before Setting the Dose

Frequency, intensity, time and type answer the dose question. Symptoms, current activity and relevant medical history answer the safety question.

They belong in the same conversation but should not be collapsed. A generic schedule cannot determine whether vigorous activity is an appropriate starting point. Ask about the information needed for risk stratification and respond to concerning findings before prescribing. When participation is appropriate, begin at a level connected to present capacity rather than the desired endpoint.

Safety is an active decision, not a disclaimer added after the plan.

Define Intensity Operationally

Words such as light, moderate and vigorous need an observable meaning for the person using the plan. Select a practical method that can be applied consistently and explain what change would signal that the starting intensity is too high or too low.

The same label can represent different absolute work between people. A usable prescription therefore links intensity to individual capacity, symptoms and purpose. It also specifies time and type, because intensity alone does not tell someone what to do or how long to continue.

Progress through Evidence

Progression states how the plan may change after adaptation.

Choose which FITT element will move first and define the observation that permits that change. Increasing several elements together can make the new burden hard to interpret. Review adherence, response, recovery, symptoms and the person's experience. A plan that is technically precise but unacceptable will not be sustainable. If risk information or symptoms change, reassess rather than following the schedule mechanically.

The complete answer joins screening, starting dose, progression and a clear review condition.

Check the Complete Prescription

Before closing, confirm that the plan names frequency, intensity, time and type in language the person can use. Confirm that the safety decision was made from the relevant information, not inferred from enthusiasm.

State the initial dose, the first progression and the conditions that pause or redirect the plan. Finally, ask whether the activity fits preference and context. A technically complete prescription still needs ownership and review if it is to become sustainable behaviour.

In this chapter

What this chapter covers

  • 01

    Physical Activity in this module

  • 02

    Exercise in this module

  • 03

    FITT in this module

  • 04

    Exercise Intensity in this module

  • 05

    Risk Stratification in this module

  • 06

    Progression in this module

Worked example · free

Writing FITT after screening

Q [8 marks]. A sedentary adult requests a vigorous plan. Complete the safety decision before writing the FITT prescription. The displayed marks divide the prescription exercise and do not reproduce a University marking scheme.
Screening before dosage.Screening before dosage. Safety determines entry before FITT determines dosage. Retrieval cue. The four stops order screening, prescription, monitoring and revision.personchoicefollow-upReview timeline
Screening before dosage. Safety determines entry before FITT determines dosage. Retrieval cue. The four stops order screening, prescription, monitoring and revision.
  • 2Physical Activity frames the issue.
  • 3Exercise and FITT decide the response.
  • 3Risk Stratification and Progression close the plan.
Complete symptom and history screening first. If participation is appropriate, write frequency, intensity, time and type from the person's present capacity, add a tolerable progression rule and review safety alongside adaptation. Risk Stratification supplies the outcome to watch, while Progression identifies the resource or condition needed for adjustment.
Sia tip — Write fitt before committing to an intervention.
Glossary

Key terms

Physical Activity
Physical Activity is movement raising energy expenditure.
Exercise
Exercise is planned structured repetitive physical activity.
FITT
FITT is frequency, intensity, time and type.
Exercise Intensity
Exercise Intensity is the effort demanded by an activity.
Risk Stratification
Risk Stratification is screening that modifies participation advice.
Progression
Progression is planned increase as adaptation develops.
FAQ

Exercise Prescription and Risk FAQ

Why are screening and FITT separate decisions?

Screening asks whether participation should proceed, change or await assessment. FITT specifies frequency, intensity, time and type once an appropriate starting point is known, then adds a progression rule and review.

Study strategy

Exam move

Draft two FITT prescriptions for different starting capacities. For each, write the safety questions before the dose, define intensity operationally and add a progression rule. Explain why the prescription cannot be copied unchanged between the two people.

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