Question:

The following are the closed kinematic chain exercises:
A. Exercise on pulley circuits like PNF patterns
B. Slide Boards
C. Stationary exercise cycles
D. Elliptical trainers
E. Sit Ups
Choose the correct answer from the options given below:

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CKC: Distal segment fixed (cycling, elliptical, slide board)
Updated On: May 22, 2026
  • A, B and C Only
  • B and C Only
  • B, C and D Only
  • C, D and E Only
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The Correct Option is C

Solution and Explanation

Concept:
Closed Kinematic Chain (CKC) exercises are those in which the distal segment is fixed or in contact with a surface, promoting joint stability and co-contraction.

Step 1: Slide boards.


• Feet remain in contact with surface Thus: \[ B: Closed chain \]

Step 2: Stationary cycling.


• Feet remain fixed on pedals Thus: \[ C: Closed chain \]

Step 3: Elliptical trainers.


• Continuous contact with pedals Thus: \[ D: Closed chain \]

Step 4: Incorrect options.


• A: Pulley exercises are open chain
• E: Sit-ups are not classic CKC limb activity

Step 5: Final conclusion.

\[ \boxed{\text{Correct answer = Option (3)}} \]
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