Tread in the Red w/ Fred (40 Min HIIT Workout)

Fred pushes your pace into the red zone on the treadmill, conditioning your heart and lungs at top speed, with an incline option to spike your VO2 max.

Duration44min
SWEAT avg5.0· 15 ratings

Push right past your comfort zone with this interval style red-zone HIIT treadmill workout with popular SSoD Trainer Fred. You’ll push pace and condition your heart & lungs while running at top speeds. For an extra challenge, increase the incline for a little hill run to burn maximum calories and increase your VO2 max. Press play to tread with Fred!

This workout does not include a full stretch, but we have some great options here!

Bring This
Treadmill
Dismounts1beginning

What members are saying

  • Connie F.Nov 26, 2025

    Love the Red Zone with Fred...always gets the best out of me...thank you!

  • Kim M.Nov 5, 2025

    Always an amazing g workout

  • Nancy B.Jun 16, 2025

    WOW! Loved everything about this class. I wasn’t sure if I’d be able to complete it as I haven’t run in a very long time. This was exactly what I needed to get back into my running routine. Love the format and as always Fred delivers!

  • Katie M.Dec 28, 2024

    All of Fred's workouts seem to make it into my faves! Tough, fun, and motivating!

  • Sarah W.Dec 9, 2024

    Fred has the ability to connect personally through his classes. I loved this Tread with Fred. The time flew by and cues were spot on. Thank you!

  • Amy L.May 9, 2024

    We need more treadmill workouts. This was the only one I could find.

  • Denise S.May 6, 2024

    Awesome class! More of these please 😊

  • Linda L.May 5, 2024

    I don't have a treadmill and I'm not a runner but I couldn't pass up a new Fred class so I took this one outside and made it a power walk this morning.It was awesome!!! Thanks Fred!!!

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