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Table 1 Key features of the exercise programs

From: Alfredson versus Silbernagel exercise therapy in chronic midportion Achilles tendinopathy: study protocol for a randomized controlled trial

 

Alfredson

Silbernagel

Duration of exercise program

12 weeks

12 weeks

Frequency of exercises

Twice daily

Once daily

Amount of exercises

2

4–5

Sets and repetitions

3 × 15

3 × 15

Exercise mode

Slow isolated eccentric

Concentric, eccentric, plyometric

Pain tolerated

Non-disabling pain

Not more than 5 on a 0–10 NRS

Progress

No pain

Phase 1–2 – 3

Progression

Add load (5 kg)

Add load (5 kg)

  1. NRS numerical rating scale