VO₂ max is one of the most important indicators of cardiovascular fitness. This guide breaks down what it means, why it matters for your health and performance, and how to improve it with effective training strategies.

Train for your next 5K with Trainer Kori Sampson in this weekly treadmill run series inside the iFIT fitness app designed for intermediate runners.

Not sure what comes after finishing a 5K? This iFIT running roadmap shows how structured training series can guide runners from their first 5K through 10K, half marathon, and marathon preparation with expert trainers and progressive workouts.

Run with purpose in the Joy of Running Part 2: California Coast, Workouts 11-20 inside the iFIT fitness app. Led by Tommy Rivs, this 10-part program blends structured intervals with scenic Northern California coastline routes to help runners build endurance and consistency. With foundation and growth workouts designed for all levels, you’ll improve your pacing, stamina, and confidence — one intentional stride at a time.

The iFIT & Ergatta Spring Cup is a four-week online fitness competition designed for iFIT Pro members. Compete on your schedule, track real performance, and turn consistent training into measurable progress.

Ready to build momentum? The Weight Loss On-Ramp Challenge is designed to help you create consistency with six guided workouts across walking, cycling, rowing, or strength. Complete your chosen path by March 31, 2026 and earn a digital reward while building habits that support long-term weight loss.

Train across the UK with iFIT Trainer Kori Sampson through guided running and bodyweight workouts designed to build real strength and speed. Whether you’re working toward a faster 5K or strengthening your core for better movement, these structured series help you train with purpose, confidence, and momentum.

Celebrate Valentine’s Day with movement that feels exciting and achievable. The Valentine’s Flash Challenge runs February 13–15 and features three energizing workouts per modality led by dynamic iFIT Trainer duos. Choose your challenge, complete your workouts, and earn a digital Trophy Case reward.

For countless runners and athletes, the Boston Marathon® presented by Bank of America is the ultimate dream, from the iconic starting line in Hopkinton to the challenge of Heartbreak Hill and the rush of crossing the finish line on Boylston Street.How it worksWe will be giving 10 qualified runners the opportunity to cross the 2026 Boston Marathon® finish line with Team iFIT. Not only will runners get a chance to run and join Team iFIT, but they will also receive an iFIT training guide and mentorship from an iFIT Trainer.What we are looking for:Vertical videos no longer than 3 minutes long that tell a compelling story about why you want to join Team iFIT for the 2026 Boston Marathon®.You can include friends and family to help tell your story. We encourage you to include photos and additional video clips you feel would help add to your story. Tag @iFIT and use #TeamiFIT and #iFITMarathonOpportunity in your video. Questions and prompts to consider when creating your video:Tell us why you would make a great member of Team iFIT. Tell us your inspirational story, why we should select you, and what makes you stand out from the crowd. What would crossing the Boston Marathon® finish line mean to you? Imagine your support team is meeting you at the finish line, what would you tell them?Describe your past experience(s) with distance running — including marathons, 5K/10K, running clubs, or other activities to demonstrate your readiness.How has iFIT, ProForm, or NordicTrack played a role in your fitness regimen?The Details and Rules:Entrants will have until January 4, 2026 at 11:59 pm PT to share a video via social media (Instagram and Facebook) highlighting why they want to run the Boston Marathon® in 2026. Videos up to 3 minutes maximum are acceptable. Video submissions must tag @iFIT and use #TeamiFIT and #iFITMarathonContest. Applications and videos can then be submitted through this form.All videos will be initially screened by iFIT staff to ensure video contest guidelines are followed for acceptance into this video contest. Accepted videos will be reviewed by a panel of iFIT staff. Collectively, this panel will select the winners. Winners will be contacted via email.This opportunity runs from December 24, 2025, at 12:00:01 am PDT until January 4, 2026 at 11:59 pm PDT. The iFIT Team will review all submissions and announce recipients on or around January 20, 2026. Click here for the Official Rules.OPORTUNIDAD DE MARATÓN REGLAS OFICIALESOPPORTUNITÉ MARATHON RÈGLEMENT OFFICIELOnly U.S. (including U.S. territories), UK, Canada, Mexico, U.K., and Australia residents aged 18 and older are eligible to participate.