• Events

    Running

    RunningCouch to 5K5K10KHalf MarathonMarathonSee All

    Outdoor

    OutdoorCampingHikingSee All

    Triathlon

    TriathlonSprintOlympic/InternationalIRONMAN 70.3IRONMANSee All

    Cycling

    CyclingRoad CyclingCentury RidesMountain BikingSee All

    Sports

    BaseballBasketballFootballGolfMartial ArtsSoccerSoftballSwimmingTennisVolleyballWinter SportsYoga

    hidden

    active kidsactive kidsSports CampsBrowse All EventsRace Results
  • Calculators

    Calculators

    Running PaceBody Fat PercentageBody Mass Index (BMI)Ideal WeightHeart Rate
    Caloric NeedsNutritional NeedsBasal Metabolic Rate (BMR)Kids' Body Mass Index (BMI)
  • Running

    Running Events

    RunningCouch to 5K5K10KHalf MarathonMarathonSee All

    Running Articles

    RunningDistance RunningTrail RunningMud RunningTraining PlansProduct Reviews
  • Triathlon

    Triathlon Events

    TriathlonSuper SprintSprintOlympic/InternationalIRONMAN 70.3IRONMANSee All

    Cycling Events

    CyclingRoad CyclingCentury RidesMountain BikingSee All

    Triathlon Articles

    TriathlonDuathlonTraining PlansProduct Reviews

    Cycling Articles

    CyclingMountain BikingCyclo-CrossBMXTraining PlansProduct Reviews
  • Fitness

    Fitness Events

    FitnessWalkingYogaStrength TrainingPilatesWeight LiftingSee All

    Fitness Articles

    FitnessWorkoutsWalkingYogaWeight LossTraining PlansProduct Reviews
  • Sports

    Sports Events

    BaseballBasketballFootballGolfMartial ArtsSoccerSoftballSwimmingTennisVolleyballWinter Sports

    Outdoor Events

    OutdoorCampingHikingBook CampgroundSee All

    Sports Articles

    SportsSwimmingBasketballTennisBaseballSoccerSoftballVolleyballFootballLacrosseGolf

    hidden

    Water SportsIce HockeyGymnasticsMartial ArtsSkiCampingHikingTravelSailingDanceSnowshoeing
  • Nutrition

    Nutrition Articles

    NutritionMeal PrepRecipesSnacksSupplementsProduct Reviews

    Health & Injury Articles

    Health & InjuryPhysical HealthMental HealthPainInjury PreventionRecoverySleepProduct Reviews
  • Kids & Family

    Kids

    Infants (0-1)Toddlers (2-4)Big Kids (5-8)Tweens (9-12)Teens (13-18)

    Events

    SwimmingBasketballBaseballSoccerTennisVolleyballFootballMartial ArtsChildcare

    hidden

    YogaCheerleadingGymnasticsDanceMusicArts & CraftsKids FitnessSee All

    hidden

    active kidsactive kids
  1. Home
  2. >
  3. Fitness Articles
  4. >
  5. Core Ab Training
Core Training

Featured

How To Treat And Prevent Shin Splints

Shin splints are a common overuse injury that runners experience, but they are not a life sentence or a sign that running is not for you.

By Kristina Duffy

How to Set Running Goals For The New Year

We set aspirational goals to become healthier, get in shape, lose weight, live a more active lifestyle, and the list can go on. We can help you set...

By Josh Janicek

The Best Reverse Hyper Machines to Add to Your Fitness Routine

Dealing with back pain or looking to strengthen your glutes? Reverse hyper machines can help with both! Check out our review of the best reverse hy...

By Kristine Golden

Foam Rolling For Beginners

Foam rolling has become a staple in gyms, fitness studios, physical therapy clinics, and even home living rooms, but for beginners, it can feel con...

By Kristina Duffy

Latest

2013 Stocking Stuffers: Fitness Gifts Under $25

Not sure what to get the fitness enthusiast in your life? Spread the Holiday cheer without stretching your wallet. Here are 14 budget-friendly stoc...

By Maile Proctor

30-Day Push-Up Challenge

Put down the weights and take your fitness to the next level. Test your body with this push-up challenge and watch how you transform, both mentally...

By Teresa M. Howes

5 Ways to Stay Active During the Holiday Season

Gather your friends and family to stay active this holiday season. From snow-related activities to 20-minute workouts, here's how to avoid weight g...

By Doug Balzarini, CSCS, MMA-CC

How to Create a Custom Workout Plan

Reach your goals on your terms. From scheduling to exercises, here's how to create a custom workout plan to help you stay active.

By Joe Vennare

Fitness Tips for Pregnant Women

12 Breast Cancer Awareness Events

In 2011, approximately 230,000 cases of invasive breast cancer were diagnosed among women in the United States. Although there is no cure for breas...

By Beth Roessner

4 Yoga Poses for Tight Shoulders

Whether you're stressed or just completed an intense workout, the shoulders tighten up. Headaches, poor posture and more aches appear. Reduce tensi...

By Laura Waite

4 Yoga Poses to Lose Love Handles

Balance and twist to tighten and tone your midsection. These four yoga poses will build core strength and help you lose love handles fast.

By Laura Waite

  • ACTIVE Logo
  • ACTIVE is the leader in online event registrations from 5k running races and marathons to softball leagues and local events. ACTIVE also makes it easy to learn and prepare for all the things you love to do with expert resources, training plans and fitness calculators.

Follow ACTIVE
  • Facebook
  • Twitter
  • Pinterest
  • Instagram
Mobile Apps
  • ACTIVE.com App
  • Couch to 5K®
  • 5K to 10K
  • Meet Mobile
  • View All Mobile Apps
Things To Do
  • Running Races
  • Triathlon Races
  • Cycling
  • Mountain Biking
  • 5K Races
  • 10K Races
  • More Things to Do
  • Half Marathon
  • Marathon
  • Ultra Running
  • Trail Running
  • Mud Runs
  • Swimming
Popular on ACTIVE.com
  • San Diego
  • Los Angeles
  • New York City
  • Denver
  • Houston
  • Las Vegas
  • BMI Calculator
  • Calorie Calculator
  • 5K Training
  • Couch to 5K®
  • Half Marathon Training
  • Marathon Training
  • Organizer Technology Solutions
  • Earn Money
  • Account Access
  • Subscribe to Our Newsletter
  • Do Not Sell My Personal Information
  • About ACTIVE.com
  • Sitemap
  • Terms of Use
  • Copyright Policy
  • Privacy Notice
  • Privacy Settings
  • Careers
  • Support & Feedback
  • ACTIVE Access
  • Registration Software
  • Social Media Guidelines
  • Community Policies
  • Cookies Settings
  • ©2025Active Network, LLC and/or its affiliates and licensors. All rights reserved.