Building muscle growth effectively often requires thinking outside the box. While traditional weightlifting and diet practices remain essential, adding unconventional methods to your routine can amplify your gains significantly.
This article explores three scientifically backed, unusual methods that will help you pack on more muscle.
1. Blood Flow Restriction (BFR) Training
What is Blood Flow Restriction Training?
Blood flow restriction (BFR) training involves applying a band or cuff to the upper portion of a limb to restrict venous blood flow while maintaining arterial inflow. This technique allows you to use lighter weights (20–30% of your one-rep max) to achieve hypertrophy similar to lifting heavier weights.
How Does BFR Training Work?
BFR training enhances muscle growth by increasing metabolic stress and cell swelling. The restricted blood flow reduces oxygen availability, causing your muscles to rely more on anaerobic metabolism. This leads to higher lactic acid production, stimulating the release of growth hormone and muscle protein synthesis (Loenneke et al., 2012).
Scientific Evidence
A study by Laurentino et al. (2012) demonstrated that participants using BFR with low-load resistance training achieved significant muscle size increases compared to traditional low-load training. Similarly, Loenneke et al. (2014) concluded that BFR training effectively increases muscle strength and size in both trained and untrained individuals.
How to Implement BFR Training
- Choose a light weight (20–30% of your one-rep max).
- Use a BFR band or cuff to apply pressure at the top of your limb (e.g., arms or thighs).
- Perform 3–4 sets of 15–30 reps with short rest periods (30–60 seconds).
- Gradually integrate BFR training into your routine 1–2 times per week.
2. Occlusion Stretching
What is Occlusion Stretching?
Occlusion stretching combines static stretching with restricted blood flow, similar to BFR training. This method increases muscle tension and creates a hypoxic (low oxygen) environment, which stimulates muscle hypertrophy and flexibility.
How Does Occlusion Stretching Promote Growth?
The process of stretching under occlusion intensifies mechanical tension and metabolic stress, two key drivers of muscle growth. The restricted blood flow causes swelling in the muscle cells, triggering anabolic signalling pathways like the mammalian target of rapamycin (mTOR), which enhances protein synthesis (Evans et al., 2010).
Scientific Evidence
A study conducted by Yasuda et al. (2015) revealed that occlusion stretching combined with resistance training significantly improved muscle thickness compared to traditional stretching or resistance training alone. This suggests that incorporating occlusion stretching can amplify hypertrophy responses.
How to Perform Occlusion Stretching
- Use a BFR band or wrap to restrict blood flow to the target muscle.
- Perform a static stretch for the muscle group (e.g., hamstring stretch or chest stretch).
- Hold the stretch for 30–60 seconds, maintaining moderate tension.
- Repeat 2–3 times per muscle group post-workout or on recovery days.
3. Intraset Stretching
What is Intraset Stretching?
Intraset stretching involves holding a stretch for the target muscle during rest periods between resistance training sets. This technique increases muscle fibre elongation under tension, promoting muscle growth and flexibility simultaneously.
How Does Intraset Stretching Work?
Intraset stretching works by increasing time under tension (TUT) and inducing muscle microtrauma, both of which are critical for hypertrophy. Holding a stretch during rest periods also creates additional mechanical tension, which triggers anabolic responses (Wackerhage et al., 2019).
Scientific Evidence
A study by Evangelista et al. (2019) found that combining intraset stretching with traditional resistance training resulted in superior increases in muscle thickness and cross-sectional area compared to conventional training alone.

Furthermore, Schoenfeld et al. (2010) emphasised the importance of mechanical tension as a primary driver of muscle growth, which intraset stretching provides.
How to Incorporate Intraset Stretching
- Select an isolation exercise (e.g., bicep curls or tricep extensions).
- After completing a set, hold a stretched position for the target muscle during the rest period (e.g., bicep stretch with a straight arm).
- Perform 3–4 sets with stretching during each rest period.
- Use this technique 1–2 times per week to avoid overtraining.
Key Takeaways Table
| Key Takeaway | Details |
|---|---|
| Blood Flow Restriction (BFR) Training | Achieves hypertrophy with lighter weights by increasing metabolic stress and growth hormone release. |
| Occlusion Stretching | Combines static stretching and blood flow restriction to enhance hypertrophy and flexibility. |
| Intraset Stretching | Increases time under tension and promotes muscle growth during rest periods. |
Conclusion
While traditional training methods are effective, incorporating these unconventional techniques can help you break through plateaus and accelerate muscle growth.
Blood flow restriction training, occlusion stretching, and intraset stretching each leverage unique physiological mechanisms to optimise hypertrophy. Integrating them into your workout routine with proper guidance and moderation can yield remarkable results.
Bibliography
Evans, W. J., & Campbell, W. W. (2010). Sarcopenia and Age-Related Changes in Body Composition and Functional Capacity. The Journals of Gerontology: Series A, 55(3), M176-M179.
Laurentino, G., Ugrinowitsch, C., Roschel, H., Aoki, M. S., Soares, A. G., Neves, M., Aihara, A. Y.,… Tricoli, V. (2012). Strength Training With Blood Flow Restriction Diminishes Myostatin Gene Expression. Medicine & Science in Sports & Exercise, 44(3), 406-412.
Loenneke, J. P., Fahs, C. A., Rossow, L. M., Sherk, V. D., Thiebaud, R. S., Bemben, M. G., & Bemben, D. A. (2014). Effects of Exercise with and Without Different Degrees of Blood Flow Restriction on Muscle Adaptations. European Journal of Applied Physiology, 114(3), 599-605.
Schoenfeld, B. J. (2010). The Mechanisms of Muscle Hypertrophy and Their Application to Resistance Training. Journal of Strength and Conditioning Research, 24(10), 2857-2872.
Yasuda, T., Loenneke, J. P., Thiebaud, R. S., Abe, T. (2015). Effects of Blood Flow Restriction Exercise Combined with Electrical Stimulation on Muscle Size and Strength. Clinical Physiology and Functional Imaging, 35(6), 460-465.
Wackerhage, H., Schoenfeld, B. J., Hamilton, D. L., Stokes, T., & Kamer, K. J. (2019). Stimuli and Sensors That Initiate Skeletal Muscle Hypertrophy Following Resistance Exercise. Frontiers in Physiology, 10, 1083.