Key insights

• 💪 Debate over the significance of the stretched part vs. the contracted part of a lift, Criticism of the recent focus on stretch in science-based training, Importance of new research on range of motion for experienced lifters
• 📊 Lengthened partials result in more muscle growth than full range of motion exercises, Skeptics believe the effectiveness is due to sarcomere addition which occurs in beginners, Study to compare effects of lengthened partials on experienced lifters planned for 8 weeks with one side doing full range of motion and the other side doing lengthened partials
• 🔬 Study comparing full range of motion and partial reps, Participants pushing themselves hard with a mix of rep ranges, Ultrasound will measure muscle growth after 8 weeks, Lab equipped with training equipment, Emphasis on proper technique for partial reps, Expert exclusively doing lengthen partials
• 🤓 Scientific community supports the benefits of range of motion, Study comparing full range of motion and lengthened partials was conducted, Results are in but the outcome is not revealed yet, Researchers are eager to discuss the findings
• 📈 No statistically significant difference between full range of motion and half reps in muscle growth, Half reps can be as effective as full range of motion, Study challenges the belief that full range of motion is always superior for muscle growth, Consideration of random variation, genetics, and measurement error in interpreting results
• 🏋️ No significant difference in hypertrophy between full range of motion and partials, Effectiveness of lengthening training depends on various factors and individual preferences, Wiggle room for different training approaches, especially for experienced trainees, Nutrition app Macro Factor provided free access to study subjects

Q&A

• How do the study results suggest a shift in the prior stance about the effectiveness of lengthening training?

  The study results suggest that there is no significant difference in hypertrophy between full range of motion and partials, shifting the prior stance slightly. The effectiveness of lengthening training depends on various factors and individual preferences, especially for experienced trainees.

• What did the study results find about the difference between full range of motion and half reps in terms of muscle growth?

  The study found no statistically significant difference between full range of motion and half reps in muscle growth. It challenges the belief that full range of motion is always superior for muscle growth and considers random variation, genetics, and measurement error in interpreting results.

• What do the scientists express about the benefits of range of motion?

  The scientific community supports the benefits of range of motion. A study was conducted with full range of motion and lengthened partials, and the researchers are eager to discuss the findings, although the outcome is yet to be revealed.

• What is the focus of the study being conducted comparing full range of motion and partial reps?

  The study is focusing on comparing muscle growth between full range of motion and partial reps. Participants are pushing themselves with a mix of rep ranges, and ultrasound will be used to measure muscle growth after 8 weeks. Proper technique for partial reps is emphasized, and the lab is equipped with various training equipment.

• What did the study on lengthened partials vs. full range of motion exercises find regarding muscle growth?

  The study found that lengthened partials resulted in significantly more muscle growth compared to full range of motion exercises. There is some skepticism regarding the effectiveness, which revolves around sarcomere addition theories.

• What is the speaker challenging about the importance of stretch in lifting exercises?

  The speaker is challenging the significance of stretch in lifting exercises for experienced lifters and questioning the recent focus on stretch in science-based training.

• 00:00 The speaker is challenging the importance of stretch in lifting exercises, questioning its significance for experienced lifters and seeking to conduct new research on range of motion.
• 02:04 Lengthened partials caused significantly more muscle growth compared to full range of motion; some skepticism revolves around sarcomere addition theories; study to compare effects on experienced lifters planned
• 04:13 A study is being conducted to compare muscle growth between full range of motion and partial reps. Participants are pushing themselves hard with a mix of rep ranges. Ultrasound will be used to measure muscle growth after 8 weeks. The lab is equipped with various training equipment. Proper technique for partial reps is emphasized. An expert is exclusively doing lengthen partials.
• 06:18 Scientists express optimism about the benefits of the range of motion. A study was conducted with full range of motion and lengthened partials. Results are in, but the outcome is yet to be revealed. The researchers are nervous but eager to discuss the findings.
• 08:24 The study found no significant difference between full range of motion and half reps in terms of muscle growth, suggesting that half reps can be as effective as full range of motion. This challenges the belief that full range of motion is always superior.
• 10:45 The study results suggest that there is no significant difference in hypertrophy between full range of motion and partials, shifting the prior stance slightly. However, specific exercises and individual preferences may play a role. The effectiveness of lengthening training depends on various factors, and there is wiggle room for different approaches, especially for experienced trainees. Nutrition app Macro Factor provided free access to study subjects.