Can strength training improve flexibility?

Published: September 28, 2025
Updated: September 28, 2025

There is a common perception that strength training inhibits flexibility. I work as a trainer and have confused various clients into believing that this is the case, and demonstrate otherwise. A full range of motion resistance training program greatly enhances flexibility when done properly. In fact, my most stiff students have gained more mobility/movement/ range of motion from strength training work than from stretching/range of motion work alone. Your muscles must have some strength to stabilize new ranges safely.

End-Range Strength

  • Builds muscle control at maximum lengths
  • Prevents instability in stretched positions
  • Enables deeper stretches safely

Connective Tissue Adaptation

  • Tendons become more elastic under load
  • Fascia remodels around strengthened muscles
  • Joint capsules adapt to new ranges

Neuromuscular Coordination

  • Teaches muscles to relax when extended
  • Reduces protective tension responses
  • Improves movement confidence at limits
Flexibility-Boosting Strength Exercises
ExerciseDeep SquatsPrimary Flexibility BenefitHip & ankle mobilityForm TipKeep heels groundedRep Range
8-12 reps
ExerciseOverhead PressesPrimary Flexibility BenefitShoulder extensionForm TipBrace core, no back archRep Range
10-15 reps
ExerciseLunges with RotationPrimary Flexibility BenefitSpinal & hip mobilityForm TipRotate over front thighRep Range
6-10 reps/side
ExerciseDeadliftsPrimary Flexibility BenefitHamstring elasticityForm TipNeutral spine throughoutRep Range
6-8 reps
Perform 2-3 times weekly after proper warmup

Strength work develops control at the end ranges. When your muscles feel safe at their maximum length, they will then relax deeper into a stretch, resulting in long-lasting flexibility improvements. My students progress the fastest when strength work and stretching are combined, and they accomplish poses they thought they could never do.

Correct form cannot be compromised. Move through your full, natural range of motion without any pain. Stop before your form breaks down. Controlled movements train muscles to adapt to longer lengths, which in turn adapts the tissue. Months later, your flexibility will improve significantly.

Start by performing bodyweight exercises. You can start by performing deep squats, holding onto something (like a railing or other support). Then, move to weighted movements, gradually increasing the weight used. You will notice within a few weeks that daily movements have become much easier. Strength and flexibility are powerful partners in your fitness journey.

Read the full article: 8 Practical Ways How Increase Flexibility

Continue reading