Optimal Health Daily - Fitness and Nutrition 3316: Which Exercises are Best for Strength Training and How to Perform Full Range of Motion Reps on Effective Strength Exercises
Mar 6, 2026
Discussion of full versus partial repetitions in strength training and when each approach is appropriate. Exploration of safety considerations for knees and shoulders and how limiting range can prevent injury. Examination of claims about muscle engagement with partial reps and the research gaps. Practical tips on progressing range of motion gradually and training mindfully to protect joints.
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Listener Question About Partial Reps At The Gym
- Linda asked whether gym machine diagrams show full reps and noted many people do quick partial bursts on leg presses.
- Dr. Neal responded from his experience observing varied forms and trends, saying partial reps are increasingly common since bodybuilding eras.
Use Partial Reps To Protect Joints
- Do use partial reps when full range causes pain or excessive joint stress to protect knees, shoulders, or elbows.
- Dr. Neal gives the example of teaching beginners to stop at parallel on bodyweight squats or not lowering dumbbells fully on bench to reduce strain.
Evidence For Partial Vs Full Reps Is Limited
- Research comparing partial vs full reps is limited, small, short-term, and focused on few exercises like squat and bench.
- Dr. Neal notes this lack of evidence means we can't confidently generalize partial-rep effectiveness across movements or machines.