HORIZON STRENGTH | Week 10: Posture Under Fatigue

Amy Petersen headshot
Amy Petersen
ACE-CPT, Sports Performance, PN-1, PATHFINDER Founder & Director of Programming
October 31, 2025

This is your final peak week in Horizon. Your volume tapers slightly, but the workout emphasis stays on your trunk endurance and lower-leg resilience. This is where you test your ability to hold perfect posture when you're tired. Expect your calves and shins to feel the load -- this is the exact adaptation needed for late miles.

Mindset Notes: Be smart about recovery this week. Roll, stretch, and prioritize sleep. Your goal is to enter taper feeling durable.

NOTES

  • You will need: Ruck, Sandbag, and Kettlebell or Dumbbells
  • This workout should take less than 50 minutes - 1hr.
  • If needed, rest 1-2 minutes between rounds.
  • Always do your warm-up to help prevent injuries.
  • Some video demonstrations may depict exercise tools other than what we suggest - the same cues and form will still apply unless otherwise noted.

REMINDER:

  • Soft count: 1, 2, 3, 4 ... this is when both (or all) limbs perform the exercise at the same time.
  • Hard count: 1, 1, 2, 2, 3, 3, 4, 4...this is when only one limb does work at a time.
  • Each Side: Do all reps on one side before switching to complete all reps on the other side.

WARM UP

 REPS EXERCISE COUNT
20 x reps Heel Walks + Toe Walks EACH
10 x reps Scapular Push Ups
3 x reps World’s Greatest Stretch EACH SIDE
20 x steps Ruck Overhead Carry EACH DIRECTION

WORKOUT

 REPS EXERCISE COUNT
10 x reps Ruck Back Squat
8 x reps Sandbag Glute Bridge
15 x reps Tibialis Wall Raises



10 x reps DB Arnold Press
10 x reps Alternating Bird Dog* HARD COUNT
8 x reps Side Plank Reach-Through EACH SIDE

    Notes:

    It's so easy to have poor form with Bird Dogs. Hyperextension (arching your back, dropping you belly low) is the way to an injury. You want this exercise to feel like real work when it's done properly. Hip points should both face the ground without opening up. Your shoulders, hips, and working knee should follow a single line, and your eyes should be facing down and slightly ahead, not craning your neck.

    Try this form, and then try it with a tennis ball on your low back. Your goal is to keep the tennis ball stable while alternating from arm to arm and leg to leg. It's harder than it looks.