Key findings
This white paper presents the findings of an external validation study investigating Aletha Health’s Hip Hook (Mark) device, designed to target deep hip flexors (specifically the psoas and iliacus muscles) to alleviate chronic lower back pain, improve mobility, and enhance physical function. Conducted in collaboration with Evolve Well Research Partners and Biostrap, the study demonstrated significant benefits in both acute and chronic outcomes when compared to traditional stretching exercises.
Acute Pain
After just one use of the Hip Hook, participants experienced a 27% reduction in pain and a 24% reduction in muscle tension. 71% noticed a reduction in muscle tension. This improvement was observed following a single 90-second session, highlighting the immediate impact of the device.
Chronic Pain
With consistent use of the Hip Hook three times per week over a period of four weeks, participants saw a 29% improvement in sleep duration, a 19% reduction in pain, and notable improvements in physical function. This sustained usage demonstrated the long-term benefits of the device for managing chronic low back pain and enhancing overall mobility.
Overall Impact
The Hip Hook users maintained their physical activity levels while the Control group showed declines. The Intervention group also demonstrated improved sleep quality and a trend toward enhanced strength.
Hypotheses
Study design
Participants
The study involved 25 adults (ages 25–55) from the U.S. with chronic low back pain (LBP). Participants were divided into two groups: Intervention Group (n = 15): Used the Hip Hook device three times per week for 90 seconds per session. Control Group (n = 10): Performed standard hip flexor stretches three times per week for 90 seconds. Exclusion criteria included recent surgeries, pregnancy, and certain medical conditions (e.g., neurological or cardiometabolic diseases).
Study phases
Baseline (2 Weeks): Monitoring pain, function, and sleep quality. Intervention (4 Weeks): Participants used the Hip Hook or performed stretching exercises. Washout (2 Weeks): No intervention, with follow-up. assessments of pain, function, and other measures.
Methods
Data were analyzed using paired t-tests and ANCOVAs to compare baseline, intervention, and washout phase results. Physiological and self-report data were examined for significant changes, and statistical analyses accounted for covariates like HRV and sleep quality.
Summary of acute effects
Insights and Implications
This external validation study demonstrated that the Hip Hook is effective in reducing pain, alleviating muscle tension, and improving sleep quality in individuals with chronic LBP. These findings align with a growing body of literature that highlights the benefits of targeted interventions for musculoskeletal health and functional improvements in people with LBP.
Study Limitations
Sample Size and Generalization
The relatively small sample size (n = 25) limits the generalization of the results. Larger studies are needed to confirm these findings and explore subgroup variations in pain severity, age, and gender.
Study Duration
The six-week study duration, including a two-week washout phase, may have been too short to observe long-term changes in autonomic nervous system (ANS) activity. Longer follow-up periods are needed to assess sustained physiological and subjective effects.
Intervention Protocol
The protocol of 90-second sessions, three times per week, may not represent the optimal frequency or duration for maximum benefits. Future research should test different treatment parameters for faster or more significant improvements.
Limited Population Scope
This study focused on individuals with chronic LBP, limiting understanding of the Hip Hook's effects on asymptomatic or healthy populations. Future studies should include these groups to explore its broader applications, such as injury prevention or athletic performance.
Measurement of ANS Activity
While ANS metrics were measured, changes in heart rate variability (HRV) may require longer interventions to manifest. More focused and extended monitoring of ANS activity is needed to better capture these effects.
Potential Bias in Self-Reported Measures
Self-reported outcomes, such as pain and sleep quality, could be subject to participant bias. Future studies should incorporate more objective pain assessments to improve reliability.
Participant Demographics
The study’s sample was homogeneous in age and location, which limits its applicability to more diverse populations. Expanding the demographic range would help determine if the Hip Hook has different effects based on age, ethnicity, or socio-economic factors.
Conclusion
Despite these limitations, this study provides a solid foundation for the Hip Hook as a potential treatment for chronic LBP. Future research with larger, more diverse samples and varied protocols will help clarify its broader clinical benefits.
