
Increase your training in a smart, safe way.
The rule is a simple one: increase your training by 10 percent per week. That’s it. Well, I guess there’s a little more to it than that, but the 10 percent progression rule is where we’re going to start.
Let’s use running as an example:
Sarah currently runs about 15 miles per week and she just signed up for a marathon this fall, so she needs to start training. She wants to bump up her mileage, but she doesn’t want to get injured or suffer from the “too much, too soon” syndrome.
Here is what her plan will look like:
Week 1: 15 miles
Week 2: 16.5 miles
Week 3: 18.2 miles
Week 4: 20 miles
Week 5: 22 miles
Week 6: 24.2 miles
Week 7: 26.6 miles
Week 8: 29.3 miles
Week 9: 32.2 miles
Week 10: 35.4 miles
Week 11: 39 miles
Week 12: 42.8 miles
Within three months, Sarah can nearly triple her current weekly mileage, and with a much lower chance of injury.
It may seem that you’re increasing mileage at a painfully slow rate, but 10 percent progression is a great place to start, and the miles add up fast. As your mileage increases, allow the majority of the increase to come from one long run during the week, instead of spread throughout all runs that week. At some point, you may also need to increase the frequency of activity, and add in another day of workout.
Let’s use Sarah as an example again:
Week 1: Sarah may run 4 days a week, with run lengths of 3,4,3, and 5 miles.
Week 6: Sarah may run 5 days a week, with runs lengths of 4,3,6,3, and 8 miles.
Week 12: Sarah may run 6 days a week, with run lengths of 7,5,8,6,5, and 12 miles.
The same principle can be applied to strength training as well. Weight x Reps will give you your total workload. Only increase your total workload by 10% per week to start. And don’t forget that this is always weekly totals. Obviously upper body workouts will yield a lower total workload than lower body workouts due to the nature of the body. So add up all weights and reps, then multiply by 1.1 to get a 10% increase for the following week.
With any fitness or training program, be sure to also listen to your body and pay attention to any warning signals. Stress fractures and shin splints are both very common overuse injuries associated with road running especially. If you are experiencing pain or symptoms of these conditions, it might be good to drop down to 5 percent progression, or just stay at one mileage for several weeks to allow yourself more time to acclimate to the higher workload. Regardless of what you are training for, remember to always train smart.
Becca Capell
iFit Head Trainer
WARNING: This post is not intended to replace the advice of a medical professional. The above information should not be used to diagnose, treat, or prevent any disease or medical condition. Please consult your doctor before making any changes to your diet, sleep methods, daily activity, or fitness routine. iFit assumes no responsibility for any personal injury or damage sustained by any recommendations, opinions, or advice given in this article
We’ve reached the final stretch in iFIT’s Finish Strong journey, a three-month commitment to staying active, motivated, and focused through the end of the year. You’ve built your consistency, and now it’s time for the grand finale: the Dash to the Finish Challenge.This month is all about pushing to the finish line while celebrating how far you’ve come. Embrace the season, whether you’re walking through the holiday markets in Germany or feeling the Jingle Bell Burn in the iFIT Studio.It’s time to finish strong!Complete the workouts from your selected Challenge level by December 31, 2025 and you’ll earn this digital reward for your Trophy Case. Here are this month’s Challenges:Treadmill and elliptical workoutsWalking and Running: Finish strong this month with walks and runs! You’ll explore the famous holiday markets in Germany with Casey Gilbert, complete holiday-themed walks and runs in the iFIT Studio with Ashley Paulson, John Peel, Richard Biglia, Jesse Corbin, Pearl Fu, and Jonnie Gale, walk across a glacier in Argentina with John Peel, and wrap things up in Nepal with Ang Tshering Lama.Join the Dash to the Finish Challenge: Walk & RunCycling WorkoutsCycling: Cycle to the finish line this month! iFIT Trainer John Wessling will lead you through an interval ride and an endurance ride alongside a dog sled team in Alaska. Then, you’ll head to Colorado with iFIT Trainer Keith Gabel to explore the Devil’s Thumb Resort. Finally, iFIT Trainer Ashley McIvor will join you in Norway for a HIIT ride and strength ride that is sure to get you in the holiday spirit.Join the Dash to the Finish Challenge: CyclingRower WorkoutsRowing: iFIT Trainers Alex Gregory and Susan Francia will take you on an epic adventure this month! Join Alex in Wales for endurance and speed rowing workouts, then head to Canada for quick but effective training with Susan, focused on HIIT, power, and endurance.Join the Dash to the Finish Challenge: RowingStrength workoutsStrength: Build strength in the iFIT Studio and in Iceland this month! Catch the incredible dynamic duos of Hannah Eden and Paulo Barreto, John Peel and Ashley Paulson, and Hannah and Ashley, and a solo workout with Shannon Cooper for fun, holiday-themed workouts. iFIT Trainer Jonnie Gale will round things out with two strength-focused workouts in the stunning backdrop of Iceland.Join the Dash to the Finish Challenge: StrengthDisclaimer: The primary purpose of this blog post is to inform and entertain. Nothing on the post constitutes or is intended to be a substitute for professional medical advice, prevention, diagnosis, or treatment. Reliance on any information provided on the blog is solely at your own risk. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition, and please consult your doctor or other health care provider before making any changes to your diet, sleep methods, daily activity, or fitness routine. Do not disregard professional medical advice or delay seeking it because of information available on this blog. iFIT assumes no responsibility for any personal injury or damage sustained by any recommendations, opinions, or advice given in this article. Always follow the safety precautions included in the owner’s manual of your fitness equipment.
December 1, 2025