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June 27, 2026Journal of Clinical MedicineOpen Access

Effects of Repeated Contrast Therapy on Forearm Microcirculatory and Neuromechanical Recovery After Climbing-Specific Fatigue in Amateur Climbers: A Randomized Controlled Trial

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Authors

MHMagdalena Hagner–DerengowskaBKBartłomiej KacprzakAMAnna Michalska

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Overview

Randomized trial shows contrast therapy enhances recovery outcomes in amateur climbers, suggesting potential benefits for athletes.

Key Points

  • To evaluate the impact of contrast therapy on recovery from climbing-specific forearm fatigue in amateur climbers.
  • Randomized controlled trial with 40 amateur climbers assigned to passive recovery or contrast therapy.
  • Intervention involved bilateral forearm treatment with alternating cold and heat phases for 20 min, administered post-fatigue and bi-weekly for 8 weeks.
  • Outcomes measured included perfusion, hyperemia, stiffness, pain threshold, grip strength, and biomarkers at various time points.
  • Contrast therapy improved resting perfusion at 24 h (+7.28 percentage points, 95% CI 6.58 to 7.98) and 48 h (+7.62, 95% CI 6.94 to 8.31; both p < 0.001).
  • At week 8, contrast therapy resulted in enhanced peak hyperemic perfusion (+6.21 PU, 95% CI 5.62 to 6.79; p < 0.001).
  • Recovery benefits included reduced stiffness (-71.7 N/m, 95% CI -75.6 to -67.8), improved pain threshold (+8.1 N/cm2, 95% CI 7.3 to 8.8), and increased grip strength (+7.8 kgf, 95% CI 7.3 to 8.3; all p < 0.001).

Cite This Study

Hagner–Derengowska et al. (2026) studied this question.

synapsesocial.com/papers/6a3f68a3aea7db3c1953fab8https://doi.org/10.3390/jcm15134970
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