In-Line Lunge

Pre-measurement

Before assessment, measure the height of tibia tuberosity (also height of string during Hurdle Step Test). Place two marks on a board (approximately 2 x 6 inch or 5 x 15 cm). First mark is foot's lengths plus small distance (2 inch or 5 cm) from end of board. Second mark is  length of tibia tuberosity from first mark.

Instructions

Preparation

Hold dowel behind back with both hands, right hand against back of neck and left hand against lower back. Bar should be positioned along spine so it makes contact with head, upper back, and buttocks.  Place right foot on board with front of foot at first mark. Step forward and place left heel at second mark. Both feet should positioned flat and pointing forward.

Execution

While maintaining upright posture with dowel maintaining contact with head, upper back, and top of buttocks, Lower body into lunge position so right knee makes contact with board behind left heel. Return body to starting position. Repeat with legs and arms in opposite positions.

Measurement

Test administrator assesses subject's completion of movement using following criteria:

• Dowel remains vertical with no torso movement
• Dowel maintains contact with head, upper back, and top of buttocks
• Hip of trailing leg completely extends at lowest position
• Both feet are in-line
• Knee touches board behind heel of front foot
• Knees are aligned with feet
• Balance is maintained throughout movement

Assesses

Functional Mobility (step leg)

• Hip Flexion
  • Cannot descend far enough for trailing knee to contact board
  • Possible tight Adductor Magnus
  • Possible weak hip extensors
    • Adductor Magnus
    • Gluteus Maximus
• Ankle Dorsal Flexion
  • Front heel raises at lowest position
  • May indicate Soleus inflexibility

Functional Mobility (trailing leg)

• Hip Extension
  • Hip of trailing leg is not completely extended at lowest position
    • may indicate Rectus Femoris inflexibility

Balance

• Dynamic and static

Scoring

If pain is felt during this movement, score 0 and refer out for orthopedic evaluation.

Comments

This test is part of Functional Movement Screening (FMS). Score of 2 or less, discontinue exercise and loads involving lunge pattern until corrected.