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July 26, 2026Sources cited
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Bodybuilding

Bodybuilding is a form of resistance training focused on increasing muscle size and definition through hypertrophy.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

Bodybuilding is a form of resistance training focused on increasing muscle size and definition through hypertrophy. It is practiced for aesthetic development and, in competition, athletes are judged on muscularity, symmetry, conditioning, posing, and presentation. In Canada, bodybuilding is widely practiced as a recreational fitness activity and competitive sport, with local gyms, amateur contests, and national-level organizations serving Canadian athletes.

Definition

Bodybuilding is a training discipline centered on building and shaping the muscles of the body through resistance exercise and hypertrophy. The term also refers to the competitive sport in which athletes present their physiques on stage.

Competition and judging

In bodybuilding contests, athletes are compared in line-ups and judged on a combination of physical and presentation factors. Posing is an important part of performance, alongside muscular size and overall balance. Judges assess athletes on conditioning, muscularity, posing, size, stage presentation, and symmetry.

Training and preparation

Bodybuilders usually train with progressive resistance and manage diet to reduce non-essential body fat before competition. Contest peak preparations may include carbohydrate loading and dehydration to enhance definition. The primary goal is muscle hypertrophy and aesthetics.

Relation to other fitness activities

Bodybuilding overlaps with other strength-based activities but differs in emphasis. Compared with powerlifting, which prioritizes maximal strength, bodybuilding focuses more on physique development and appearance. Related activities include resistance training, powerlifting, and calisthenics.

Key facts

  • Bodybuilding emphasizes progressive resistance exercise to develop muscles through hypertrophy.
  • It is primarily pursued for aesthetic purposes rather than purely functional performance.
  • Competitive bodybuilders perform specified poses and individual posing routines before judges.
  • Judges assess athletes on conditioning, muscularity, posing, size, stage presentation, and symmetry.
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Canadian context

Bodybuilding is widely practiced in Canada as a recreational fitness activity and competitive sport, with local gyms, amateur contests, and national-level bodybuilding organizations serving Canadian athletes.

Frequently asked questions

What is bodybuilding?
Bodybuilding is resistance training aimed at increasing muscle size and definition, usually for aesthetic purposes.
What does a bodybuilder do?
A bodybuilder trains and diets to develop a muscular physique, and competitors also practice posing for judged events.
How are bodybuilding competitions judged?
Judges assess conditioning, muscularity, posing, size, stage presentation, and symmetry.
Is bodybuilding the same as powerlifting?
No. Bodybuilding emphasizes appearance and muscle development, while powerlifting focuses on lifting maximal weights.
How do bodybuilders prepare for contests?
They reduce body fat and may use carbohydrate loading and dehydration near competition to improve muscle definition.

References

  1. Wikipediahttps://en.wikipedia.org/wiki/Bodybuilding
    Supports: Definition of bodybuilding, competitive format, judging criteria, and contest preparation
  2. Google Books / Simon and Schusterhttps://books.google.com/books/about/The_New_Encyclopedia_of_Modern_Bodybuild.html?hl=fr&id=D-_-St_TPfIC
    Supports: Existence of a major bodybuilding reference work associated with the sport
  3. Google Books / Robert Kennedy Publishinghttps://books.google.com/books/about/Encyclopedia_of_Bodybuilding.html?id=YwT8MgAACAAJ
    Supports: Existence of a bodybuilding reference work covering training, nutrition, supplements, and posing