By Will Duru, BSc (Hons) Sport and Exercise Science, Award-winning Personal Trainer with over 10 years of experience in strength training and optimising recovery
Thirty Days Can Change Your Routine
Walking into a gym without a plan can make every session feel harder than it needs to be. You move between machines, copy random exercises and leave without knowing whether you made progress.
This 30-day beginner challenge removes that uncertainty. You will follow five clear training days, record your sets and build a routine that becomes easier to repeat.
Losing 5kg may be possible for some people, especially when early water-weight changes are included, but it is not guaranteed. Your real target is to reduce body fat, improve fitness, gain strength and finish the month with habits you can keep.
Why the 5-Day Split Works
- Each workout has one clear purpose, so you know exactly what to train.
- Strength sessions help you maintain or build muscle while losing fat.
- Cardio supports fitness and increases weekly energy expenditure.
- Functional training builds strength you can use outside the gym.
- Two weekly recovery days help your body adapt to the new workload.
Your Weekly Schedule
Day | Workout | Main focus |
Monday | Chest and Back | Push and pull strength |
Tuesday | Shoulders and Arms | Shoulders, biceps and triceps |
Wednesday | Legs and Glutes | Lower-body strength |
Thursday | Cardio Intervals | Fitness and calorie expenditure |
Friday | Functional Full Body | Strength, conditioning and core |
Saturday | Recovery | Walking or mobility |
Sunday | Rest | Full recovery |
How to Choose Your Starting Weight
Choose a weight that lets you complete every repetition with control while keeping two or three good repetitions in reserve. The last few repetitions should feel challenging, but your technique should not change.
The 5-Day Beginner Gym Programme
Day One: Chest and Back
Exercise | Sets | Reps/Time | Rest | Focus |
3 | 10-12 | 75 sec | Chest and triceps | |
3 | 10-12 | 75 sec | Back | |
3 | 10-12 | 60 sec | Upper chest | |
3 | 10-12 | 60 sec | Mid-back | |
3 | 6-12 | 60 sec | Chest and core | |
3 | 12-15 | 60 sec | Upper back |
Day Two: Shoulders and Arms
Exercise | Sets | Reps/Time | Rest | Focus |
3 | 8-12 | 75 sec | Shoulders | |
3 | 10-12 | 60 sec | Biceps | |
3 | 10-12 | 60 sec | Triceps | |
3 | 12-15 | 45 sec | Side shoulders | |
3 | 10-12 | 60 sec | Biceps | |
3 | 12-15 | 45 sec | Rear shoulders |
Day Three: Legs and Glutes
Exercise | Sets | Reps/Time | Rest | Focus |
3 | 10-12 | 90 sec | Quads and glutes | |
3 | 10-12 | 90 sec | Hamstrings and glutes | |
3 | 10 each leg | 75 sec | Single-leg strength | |
3 | 8 each leg | 75 sec | Legs and stability | |
3 | 12-15 | 60 sec | Glutes | |
3 | 15-20 | 45 sec | Calves |
Day Four: Cardio Intervals
Section | Duration | Effort | Guide |
Warm-up | 5 minutes | Easy | You can speak comfortably |
Zone 2 | 15-20 minutes | Steady | You can hold a conversation |
Zone 3 | 10 minutes | Challenging | Short sentences only |
Intervals | 10 minutes | Hard/easy | 30 seconds hard, 60 seconds easy |
Cool-down | 5 minutes | Easy | Gradually lower your pace |
Choose a treadmill, bike, rower or cross-trainer. Beginners can start with 35 to 40 minutes and build towards 50 minutes.
Day Five: Functional Full Body
Exercise | Sets | Reps/Time | Rest | Focus |
3 | 10 each leg | 60 sec | Legs and balance | |
4 | 30 metres | 60 sec | Grip and full body | |
4 | 30 seconds | 60 sec | Conditioning | |
3 | 8-12 | 45 sec | Upper-body strength | |
3 | 30-45 sec | 45 sec | Mid-section | |
3 | 20 total | 45 sec | Core and conditioning |
Your 30-Day Progression
Week | Strength target | Cardio target | Effort | Main goal |
Week 1 | Learn every exercise | 35-40 minutes | Easy to moderate | Build confidence |
Week 2 | Add 1-2 reps where possible | 40-45 minutes | Moderate | Improve consistency |
Week 3 | Increase selected weights slightly | 45-50 minutes | Moderate to hard | Create overload |
Week 4 | Match or beat week 3 with better form | 45-50 minutes | Controlled | Finish stronger |
How to Progress Your Weights
When you complete the top number of repetitions for every set with good form, increase the weight by the smallest available amount during your next workout. Do not increase every exercise at once.
What You Can Achieve in 30 Days
- Stronger movement patterns and better gym confidence.
- Improved cardiovascular fitness.
- More consistent training habits.
- A reduction in body weight or waist measurements when your food intake supports fat loss.
- Clear baseline strength numbers you can improve after the challenge.
- A routine you no longer need to guess your way through.
A Practical Fat-Loss Approach
Do not copy a fixed 1,500-calorie target from someone with a different body size, age or activity level. Create a moderate calorie deficit that you can sustain while training.
- Build each meal around a source of protein.
- Eat fruit or vegetables with most meals.
- Choose portions you can repeat rather than extreme restrictions.
- Keep high-calorie drinks and unplanned snacks under control.
- Track your food for a short period when portion sizes are difficult to judge.
- Use your weekly average weight, waist measurement and gym performance to assess progress.
Recovery Rules
- Keep Saturday light and take Sunday as a full rest day.
- Aim for consistent sleep rather than trying to recover at the weekend.
- Reduce the weight when soreness changes your technique.
- Do not add extra HIIT sessions because the scale moved slowly for a few days.
- A missed session does not end the challenge. Continue with the next planned workout.
Track the Challenge With 12REPS
Use the 12REPS strength training exercise library to open each exercise demonstration, check your technique and find suitable alternatives based on your equipment.
You can also download the 12REPS app to build all five workouts, record your weights and keep your rest periods consistent.
Start With Day One
Do not wait for a perfect Monday. Put the five sessions in your calendar, prepare your gym clothes and complete the first workout.
Your goal is not to punish yourself for 30 days. It is to prove that you can follow a structured plan, become stronger and keep going after the challenge ends.
About PT Will Duru
Will Duru is a personal trainer with more than a decade of experience and a Sport and Exercise Science BSc (Hons). Learn more at PTWill.com.
Will has been featured in Men’s Health, The Times, The Telegraph, The Sun and Men’s Fitness.
References
[1] Park, Y., Park, H. Y., Kim, J., Hwang, H., Jung, Y., Kreider, R., & Lim, K. (2019). Effects of whey protein supplementation prior to, and following, resistance exercise on body composition and training responses: A randomized double-blind placebo-controlled study. Journal of Exercise Nutrition & Biochemistry, 23(2), 34–44. https://pmc.ncbi.nlm.nih.gov/articles/PMC6651693/
[2] Mills, S., Candow, D. G., Forbes, S. C., Neary, J. P., Ormsbee, M. J., & Antonio, J. (2020). Effects of Creatine Supplementation during Resistance Training Sessions in Physically Active Young Adults. Nutrients, 12(6), 1880. https://pmc.ncbi.nlm.nih.gov/articles/PMC7353308/
[3] Westcott, W. L. (2012). Resistance training is medicine: effects of strength training on health. Current sports medicine reports, 11(4), 209–216. https://pubmed.ncbi.nlm.nih.gov/22777332/
[4] Pedersen, H., Fimland, M. S., Schoenfeld, B. J., Iversen, V. M., Cumming, K. T., Jensen, S., Saeterbakken, A. H., & Andersen, V. (2022). A randomized trial on the efficacy of split-body versus full-body resistance training in non-resistance trained women. BMC sports science, medicine & rehabilitation, 14(1), 87. https://pmc.ncbi.nlm.nih.gov/articles/PMC9107721/
