The 12REPS Fitness Blog

Expert workouts, nutrition guides, and strength training tips from certified personal trainers. Transform your training with science-backed advice.

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Women's Strength Training

How to Build Bigger Arms for Women: Biceps and Triceps Training

Getting Rid of Bingo Wings: The Complete Guide to Toned Upper Arms

By Will Duru, BSc (Hons) Sport and Exercise Science, Award winning Personal Read more

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11 min read

Workout Programmes

The Dad Bod Fix: A 12 Week Strength Training Plan for Busy Fathers

3-Day Strength Training Split for Busy Dads: Build Muscle in 45 Minutes

You’re a 36-year-old dad. Monday your training gets cancelled by bedtime battles. Read more

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7 min read
How to Build Bigger Arms: Complete Guide | 12REPS

How to Build Bigger Arms: Complete Biceps & Triceps Guide

You flex your arms. Fourteen inches. The same as six months ago. Read more

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10 min read

Training Tips & Guides

I Asked ChatGPT to Plan My Workouts for 12 Weeks: Here's What Happened

I Asked ChatGPT to Plan My Workouts for 12 Weeks: Here’s What Happened

By Will Duru, BSc (Hons) Sport and Exercise Science, Award winning Personal Read more

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8 min read
Why ChatGPT Can't Be Your Personal Trainer: The Problem with AI-Generated Workout Plans

Why ChatGPT Can’t Be Your Personal Trainer: The Problem with AI-Generated Workout Plans

“ChatGPT, write me a push pull legs programme.” Millions of people have Read more

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8 min read
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