Short-length partial reps (SLPs) are repetitions performed where the trained muscles don't reach their full length or stretched position, typically not exceeding 90 degrees of range of motion. Common examples include the final portion of Nordic hamstring curls, walking lunges, overhead press, leg press, calf raises, and pull-ups.

Recent research provides valuable insights into the effectiveness of SLPs:

• Full range of motion (ROM) training is superior for developing overall strength
• SLPs are slightly better for developing strength specifically in shortened positions
• Higher loads can typically be lifted using SLPs compared to full ROM
• SLPs may create greater hypertrophy at the proximal end (upper portion) of muscles

Practical Applications:

• Use SLPs to improve specific portions of lifts, such as:
  • Lockout phase in bench press (using rack safety bars)
  • Final ascent in deadlifts (lifting from elevated blocks)
  • Top portion of pull-ups

Important Considerations:

1. SLPs are less effective than longer ROMs due to active insufficiency of muscle fibers
2. For hypertrophy goals, prioritize full ROM or long-length partial training
3. SLPs can be valuable as a supplementary training technique for specific strength goals

The research indicates that while SLPs have their place in strength training, they shouldn't be the primary training method unless targeting specific movement patterns or strength positions. For optimal results, combine them with full ROM training based on your specific goals.

References: [Reference section maintained as in original]

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