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Active hamstring floss

2-3 rounds of 10 slow straight-leg raises per side.

Slot
Mobility
Focus
Mobility
Time
6 min
Intensity
Low
Injury risk
Low
Intervals
2 rounds
Equipment
Floor space, Resistance band

How to do it

Lie on your back with one leg straight on the floor. Lift the other leg as high as you can with the knee straight, using your own muscles, then lower it slowly. Do 10 reps per side. For more range, loop a band around the foot and gently pull the leg a little further at the top, then let go and try to hold it there for a second. Do 2-3 rounds.

Who it’s for

Heel hooks, high steps, and hamstrings that feel short after a lot of steep climbing. It’s active range, which is the kind that shows up on the wall.

Common mistakes

  • Bending the knee to get higher. Straight leg, even if that means much less height. Height with a bent knee trains nothing useful.
  • Yanking with the band. The band adds a little at the top, gently. It isn’t there to force the leg up.
  • Skipping the hold at the top. Letting go of the band and trying to hold the position for a second is the part that makes the new range yours.
  • Letting the other leg lift. Keep it flat on the floor, or you’re just rocking your pelvis.

How to progress

Add a round, then hold the top position for two or three seconds instead of one. Doing it two or three times a week moves further than one long stretching session, and it pairs well with Nordic curls if heel hooks are your weak point.

When it fits

The training periods this exercise fits into in Blok Sessions.

  • Base Lots of easy climbing, good movement and aerobic fitness.
  • Strength Stronger fingers and pulling, with weight you control.
  • Deload Train less, let your fingers recover, keep moving.

Start with a ready-made block

A six-week strength plan with a deload, as a file for the app, and seven short emails on how to run it.