According to the video:
The NCSA claims that 30-60 seconds is the optimal rest period between sets for muscle growth.
- 60sec: nice amount to be at for rest
- 60-90sec: sweet spot
- 1-2min: pretty good
- 3min+: really good
- 2-3min: not as good
Rest periods are not as important as we thought.
Volume that the rest period allows us to do is important.
More important to have adequate rest to ensure your interval is effective.
Take as much rest as needed to be effective.
One study says: the more load, the more tension, the more muscle you can build. But,
Recommends 3-5g+ of creatine for muscle growth. The evidence on creatine and muscle mass and strength is some of the most undeniable research.
If you, reader, wants to propose a better summary, please post it in comment below.
The studies mentioned:
Rest intervals longer than 60 seconds may modestly improve muscle growth
A Bayesian meta-analysis of nine studies examined the impact of different inter-set rest intervals on muscle hypertrophy. Results suggest that rest intervals longer than 60 seconds may offer a slight advantage for muscle growth, particularly in the arms and thighs. However, the overall effect remains small, and the benefit of rest intervals exceeding 90 seconds is unclear. Training to failure does not appear to influence these outcomes.
Longer rest periods between sets boost muscle growth and strength gains
This study compared the effects of 1-minute versus 3-minute rest intervals on muscle strength and hypertrophy in resistance-trained men over 8 weeks. Participants using longer rest periods (3 minutes) experienced significantly greater increases in both muscle thickness and strength (bench press and squat). While both groups improved muscle endurance, no significant difference was observed in this measure. The findings suggest longer rest periods may be more effective for maximizing muscle strength and hypertrophy in trained individuals.
Volume load, not rest intervals, determines hypertrophic outcomes in resistance training
This study investigated whether muscle hypertrophy and strength gains are more influenced by volume load or rest intervals. Results indicated that volume load plays a more critical role than rest interval duration in promoting hypertrophy in resistance-trained individuals. While rest intervals can impact training volume, when the total load is equated, rest periods have a minimal effect on muscle growth. The findings suggest optimizing training volume is key to maximizing hypertrophy.
Shorter rest periods in resistance training cause greater muscle damage and prolonged inflammation
This study found that resistance training with shorter inter-set rest periods (1 minute) results in significantly higher muscle damage and more prolonged inflammatory responses compared to longer rest periods (3 minutes). Biomarkers such as creatine kinase and pro-inflammatory cytokines increased more after the shorter rest condition. While this could contribute to long-term muscle adaptations, the acute damage and inflammation were greater with shorter rests.
https://www.frontiersin.org/journals/physiology/articles/10.3389/fphys.2022.827847/full
Resistance training improves cardiovascular and muscular health in older adults
This article reviews the benefits of resistance training for older adults, emphasizing its positive effects on muscle mass, strength, and cardiovascular health. Regular resistance exercise can counteract sarcopenia (age-related muscle loss), improve bone density, and enhance overall physical function, reducing the risk of falls and chronic diseases. The study suggests incorporating resistance training into exercise routines for aging populations to maintain health and independence.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3899651/
Large muscle group exercises increase oxygen uptake more than small muscle group exercises
This study examined how different rest intervals (1 vs. 3 minutes) between sets affect oxygen uptake (O2) and energy expenditure during resistance exercises using large (leg press) and small (chest fly) muscle groups. Results showed that larger muscles required more O2 and led to greater energy expenditure, especially during the recovery period. Shorter rest intervals increased fatigue, particularly in larger muscle exercises, but did not significantly impact total energy expenditure in either exercise.
0 Comments