Massage.
TechniquestretchingBeyond Cert IVDraft

PNF stretching

Assisted stretching that combines a passive stretch with an isometric contraction of the stretched muscle, and sometimes of the opposite muscle, before stretching further.

Purpose
  • Combine active muscle contraction with passive stretch in one sequence
  • Explore a greater comfortable range of movement than a plain passive stretch
  • Involve the client actively, for example in sports or post-event settings
Pressure
2–5 / 10 · pressure scale
RhythmPassive stretch about 10 seconds, isometric contraction about 6 seconds, brief relaxation 2–3 seconds, deeper stretch 10–30 seconds; 2–3 rounds.
HandsOne palm behind the heel or ankle and one above the knee to keep it straight; your shoulder can take the leg's weight
Cautions
  • Use a moderate effort, well below maximum. Research suggests submaximal contractions work as well as maximal ones.
  • Tension, not pain. Stop if the client feels sharp pain or cramping.
  • Keep the knee straight and the pelvis on the table so the stretch stays in the hamstrings.
  • Build the contraction up and let it go gradually; never release suddenly at full effort.

Step by step

1 / 7
  1. 01 / 07

    Explain the rounds

    With the client supine, explain the sequence (stretch, push, relax, stretch further) and agree on a stop word and effort level.

  2. 02 / 07
    Leg taken passively into a stretch to mild tension, one hand at the heel and one above the knee

    Passive stretch

    Raise the straight leg slowly to the point of mild tension and hold for about 10 seconds.

  3. 03 / 07
    Client contracts the hamstrings against the therapist's matching resistance without moving

    Contract (hold-relax)

    Ask the client to push the leg gently to moderately back towards the table while you hold it still. Hold the isometric contraction for about 6 seconds.

  4. 04 / 07

    Relax

    Ask the client to stop pushing and breathe out. Keep supporting the leg for 2–3 seconds.

  5. 05 / 07
    Client actively lifts the leg a little further while the therapist follows and supports

    Opposite muscle (optional CRAC)

    In the contract-relax-agonist-contract version, the client now actively lifts the leg a little further with the front-of-thigh and hip muscles while you follow.

  6. 06 / 07

    Deeper stretch

    Ease the leg to the new point of mild tension and hold for 10–30 seconds.

  7. 07 / 07

    Repeat and lower

    Do 2–3 rounds, then lower the leg slowly to the table and recheck the range.

Common mistakes

  • Letting the client push at full effort, which is uncomfortable and unnecessary.
  • Moving the leg during the contraction, so it is no longer isometric.
  • Bouncing or forcing the deeper stretch.
  • Letting the knee bend or the opposite hip lift.

How it should feel

  • Giver: a steady push you can hold without strain, then a clear easing that lets the leg travel a little further.
  • Receiver: a firm but comfortable effort, then a stretch that feels deeper yet still controlled.

Self-check

Drills

This technique is beyond Cert IV scope and should be practised only after appropriate training. It is included here for awareness and future study.

Proprioceptive neuromuscular facilitation (PNF) began in physical rehabilitation and is now common in sports settings. The main versions are hold-relax (contract the stretched muscle without movement, then stretch), contract-relax, and contract-relax-agonist-contract (CRAC), which adds a contraction of the opposite muscle. The Hamstrings are the classic teaching example.

PNF sits close to Muscle energy technique and Post-isometric relaxation, which use similar steps with lighter effort. Research suggests much of the gain comes from the client tolerating more stretch rather than the muscle actually lengthening, so describe results as “range the client can comfortably reach”.

Muscles

  • Hamstrings — Group of three muscles on the back of the thigh, running from the sitting bone to below the knee, that bend the knee and extend the hip.
  • Biceps femoris — Two-headed hamstring muscle on the outer back of the thigh that bends the knee, and with its long head also extends the hip.
  • Semitendinosus — Inner hamstring muscle with a long, cord-like lower tendon that bends the knee, extends the hip and turns the leg inwards.
  • Semimembranosus — Broad, flat inner hamstring muscle lying under semitendinosus that bends the knee, extends the hip and turns the leg inwards.

Modalities

  • Sports massage — Massage adapted to people who train or compete, with brisk pre-event work, calming post-event work and maintenance sessions between.

Sources

  1. Page P (2012) Current concepts in muscle stretching for exercise and rehabilitation. Int J Sports Phys Ther (Defines hold-relax, contract-relax and CRAC; notes submaximal (20–60%) contractions are as effective as maximal, and that gains may reflect increased stretch tolerance.)
  2. Wikipedia: Stretching (PNF combines active muscle contractions with passive external forces.)
  3. AMTA: Is assisted stretch something you should add to your practice? (Describes PNF contractions of 5–6 seconds repeated 3–5 times, and stresses tension not pain and constant communication.)