Day Five: Core

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Don't have Seconds Interval Timer yet?

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Attempting to install timers in Seconds for iOS should be done through Safari. This is done by tapping the action icon (up arrow out of a box). Other apps may not recognise the file.

Interval Timer Videos

Our most popular timers.

All Interval Timer Videos

Timer Duration: 11:00 Rollover intervals for more details.

Exercises:
  • Plank
  • Dead Bug
  • Bicycle Crunch
  • Sit-ups
  • Mountain Climbers
  • Side Plank Left
  • Side Plank Right
  • Plank 0:30
  • Rest 0:10
  • Dead Bug 1:00
  • Rest 0:10
  • Bicycle Crunch 0:45
  • Rest 0:10
  • Sit Ups 0:30
  • Rest 0:10
  • Mountain climbers 0:30
  • Rest 0:10
  • Side Plank (Left) 0:30
  • Rest 0:10
  • Side Plank (Right) 0:30
  • Rest 0:30
  • Plank 0:30
  • Rest 0:10
  • Dead Bug 1:00
  • Rest 0:10
  • Bicycle Crunch 0:45
  • Rest 0:10
  • Sit Ups 0:30
  • Rest 0:10
  • Mountain climbers 0:30
  • Rest 0:10
  • Side Plank (Left) 0:30
  • Rest 0:10
  • Side Plank (Right) 0:30

About Interval Timer

Interval Timer is a website that allows users to create HIIT, circuit training, round, tabata or custom timers to share online with their friends or clients.

The website is also allows users of Seconds Pro to share their timers from the app with non-users.

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