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Golden Age Health and Innostellar Biotherapeutics Sign Exclusive 10-Year Collaboration to Accelerate LX-101 Gene Therapy for Inherited Retinal Dystrophies due to RPE 65 gene mutation in Mainland China
Golden Age Health and Innostellar Biotherapeutics Sign Exclusive 10-Year Collaboration to Accelerate LX-101 Gene Therapy for Inherited Retinal Dystrophies due to RPE 65 gene mutation in Mainland China

Business Wire

time14-07-2025

  • Business
  • Business Wire

Golden Age Health and Innostellar Biotherapeutics Sign Exclusive 10-Year Collaboration to Accelerate LX-101 Gene Therapy for Inherited Retinal Dystrophies due to RPE 65 gene mutation in Mainland China

SHANGHAI--(BUSINESS WIRE)--Golden Age Health Pte. Ltd. (' GAH ') and Innostellar Biotherapeutics Co., Ltd. (' Innostellar ') today announced an exclusive ten-year Promotion Services Agreement that grants GAH sole rights to commercialise and promote Innostellar's first-in-class gene-therapy candidate LX-101 across Mainland China. Leveraging its full-spectrum patient-focused launch platform covering disease and medical education, market access and patient support to address the unmet needs along the patient journey such as disease awareness, timely diagnosis and treatment, treatment accessibility and affordability. GAH, along with Innostellar will act with urgency to bring this life-changing therapy to patients affected by inherited retinal dystrophies due to RPE 65 gene mutation in Mainland China so they can ' see the future, clearly'. Golden Age Health and Innostellar team up on a 10-year pact to bring sight-saving LX-101 gene therapy to China, aiming to help RPE65 IRD patients 'see the future, clearly.' 'Partnering with Innostellar positions GAH at the forefront of gene therapy in China's rapidly expanding ophthalmology market,' said Francis Wan, Chief Executive Officer of Golden Age Health. 'Our integrated approach aims to deliver sight-saving innovation to patients swiftly and comprehensively.' Dr Wang Fenghua, Founder & CEO of Innostellar, added: 'By joining forces with GAH, we can ensure LX-101 reaches patients across China rapidly and—crucially—at prices families can afford, thanks to efficiencies gained through local development and manufacturing. Improving patient access lies at the heart of our mission. About Inherited Retinal Dystrophies Inherited retinal dystrophies (IRDs)—including retinitis pigmentosa (RP) —are genetic disorders that progressively destroy photoreceptors, leading to severe vision impairment or blindness, often from childhood. RP affects approximately 1 in 3,000–4,000 people worldwide and is officially listed in China's National Rare Disease Catalog (first list, 2018), underscoring the country's commitment to improving outcomes for affected patients. About LX-101 LX-101 is an adeno-associated-virus (AAV) gene therapy delivering a functional RPE65 gene directly to retinal cells, aiming to restore the visual cycle in patients with biallelic RPE65-mutation IRDs. The programme is in Phase III clinical development in China, with top-line results expected in Q4 2025 and initiate NMPA New Drug Application soon after. If approved, LX-101 would provide eligible patients with a single-dose, durable treatment designed to halt—or potentially reverse—vision loss. About Golden Age Health Golden Age Health is a specialty pharmaceutical company dedicated to redefining patient access to medicine across China, Asia-Pacific and beyond. Headquartered in Singapore, GAH pairs data-driven market-access expertise with deep medical-affairs and RWE capabilities to bring high-impact therapies to underserved populations. About Innostellar Biotherapeutics Innostellar Biotherapeutics is a Shanghai-based biotechnology firm advancing innovative gene-therapy medicines for ocular and other genetic diseases and chronic diseases. Its pipeline is led by LX-101, the first gene therapy of its kind to enter late-stage development in China. Forward-Looking Statements This release contains forward-looking statements, including expectations regarding clinical development, regulatory approvals and commercial launches. These statements involve risks and uncertainties that may cause actual outcomes to differ materially.

OpRegen ® (RG6501) 36-Month Visual Acuity Results Featured at Clinical Trials at the Summit 2025
OpRegen ® (RG6501) 36-Month Visual Acuity Results Featured at Clinical Trials at the Summit 2025

Business Wire

time23-06-2025

  • Business
  • Business Wire

OpRegen ® (RG6501) 36-Month Visual Acuity Results Featured at Clinical Trials at the Summit 2025

CARLSBAD, Calif.--(BUSINESS WIRE)-- Lineage Cell Therapeutics, Inc. (NYSE American and TASE: LCTX), a clinical-stage biotechnology company developing novel allogeneic, or 'off the shelf', cell therapies for serious neurological and ophthalmic conditions, today announced that 36-month results from patients enrolled in a Phase 1/2a clinical study ( Identifier: NCT02286089) of RG6501 (OpRegen) in patients with geographic atrophy (GA) secondary to age-related macular degeneration (AMD), were presented at Clinical Trials at the Summit (CTS) 2025. The presentation, 'OpRegen® Retinal Pigment Epithelium (RPE) Cell Therapy for Patients with Geographic Atrophy (GA): Month 36 Results from the Phase 1/2a Trial,' was presented by Christopher D. Riemann, M.D., Vitreoretinal Surgeon and Fellowship Director, Cincinnati Eye Institute (CEI) and University of Cincinnati School of Medicine, on behalf of Roche and Genentech, a member of the Roche Group. 'Long term clinical outcomes following a single administration of OpRegen cell therapy is challenging the long-held view that GA causes irreversible damage," Brian M. Culley, Lineage CEO Share 'Long term clinical outcomes following a single administration of OpRegen cell therapy is challenging the long-held view that GA causes irreversible damage. A key finding from the Lineage-run phase 1/2a trial was the importance of extensive placement of cells across the area of atrophy. Among patients who received fulsome coverage by OpRegen cell therapy, anatomical and functional benefits from a single administration have lasted for at least three years,' stated Brian M. Culley, Lineage CEO. 'Over this extended period, improved visual function is not a natural occurrence among patients suffering from GA, making these changes quite promising. Importantly, OpRegen-treated eyes have exhibited mean BCVA scores above baseline at each of the 12-, 24-, and 36-month timepoints, demonstrating consistency as well as durability. In short, patients who received significant coverage of OpRegen cell therapy across their GA are exhibiting long-term outcomes consistent with meaningful disease stabilization and even improvement. We are excited to see any additional insights which our partners, Roche and Genentech, may uncover from the ongoing GAlette study, which is investigating the best way to deliver OpRegen cell therapy to patients with GA secondary to age related macular degeneration (AMD).' RG6501 (OpRegen) is a suspension of human allogeneic retinal pigment epithelial (RPE) cells currently in development for the treatment of GA secondary to AMD. Subretinal delivery of OpRegen cell therapy has the potential to counteract RPE cell loss in areas of GA lesions by supporting retinal cell health and improving retinal structure and function. It is being developed under an exclusive worldwide collaboration between Lineage, Roche, and Genentech, a member of the Roche Group, and is currently being evaluated in a Phase 2a clinical study, GAlette, in patients with GA secondary to AMD ( Identifier: NCT05626114). CTS 2025 Highlights Improvement in visual acuity in Cohort 4 patients (less advanced GA than in other cohorts) was present at 12 months (primary endpoint), 24 months, and has now persisted through 36 months Gains in Best Corrected Visual Acuity (BCVA) in patients in Cohort 4 (less advanced GA) measured at month 12 remain evident through month 36 following subretinal administration of OpRegen cell therapy Mean change in BCVA among treated eyes for patients (n=10) completing 3-year follow up was +6.2 letters (compared to +5.5 letters at 24 months) (Early Treatment Diabetic Retinopathy Study (ETDRS) assessment) Improvement in BCVA and outer retinal structure in patients with extensive OpRegen bleb coverage of their GA area was greater than in patients with limited coverage and persisted through month 36 Effects were greater on average in the five (5) patients with extensive OpRegen cell therapy coverage of atrophic areas at the time of surgical delivery In these patients' treated eyes, the mean change in BCVA was +9.0 ETDRS letters for those completing 3-year follow-up (compared to +7.4 ETDRS letters at 24 months) (n=5) Sustained evidence of retinal structural improvement by a quantitative Optical Coherence Tomography (OCT) analysis through 36 months was observed in treated eyes of Cohort 4 patients (less advanced GA than in other cohorts) following a single subretinal administration of OpRegen cell therapy At month 36, sustained evidence of retinal structure improvements in external limiting membrane (ELM) and RPE drusen complex (RPEDC) layers on OCT was observed in the subgroup of five patients in Cohort 4 with extensive OpRegen cell therapy bleb coverage of atrophic areas at the time of surgical delivery Mean improvement of RPEDC area compared with baseline was maintained in treated eyes from 24 months (+2.6 mm 2; n=4) to 36 months (+1.9 mm 2; n=5) In comparison, mean change in RPEDC area decreased in untreated fellow eyes from 24 months (-2.8 mm 2; n=4) to 36 months (-3.8 mm 2; n=5) Mean change in ELM area was maintained in treated eyes from 24 months (+0.8 mm 2; n=4) to 36 months (+0.3 mm 2; n=5) In comparison, mean change in ELM area decreased in untreated fellow eyes from 24 months (-1.9 mm 2; n=4) to 36 months (-3.4 mm 2; n=5) These data suggest that OpRegen cell therapy may counteract RPE cell dysfunction and loss in GA by providing support to the remaining retinal cells within atrophic areas, and these effects appear durable through at least 36 months after a single administration The Phase 2a 'GAlette study' evaluating the success of subretinal delivery of OpRegen cell therapy to target areas of GA is currently enrolling (NCT05626114) In addition to evaluating other surgical parameters, this study will test proprietary surgical devices in development for subretinal delivery of OpRegen cell therapy that have potential advantages over currently available devices and procedures Dr. Riemann's presentation is now available on the Events and Presentations section of Lineage's website. About Clinical Trials at The Summit (CTS) 2025 Clinical Trials at the Summit (CTS) 2025 brings together a diverse group of experts from around the world to discuss ongoing clinical trials and the latest data, all with the goal of achieving advances in vitreoretinal care. This program will explore the partnerships and strategies required to design and execute effective clinical trials. CTS was founded by Arshad M. Khanani, MD, MA, Director of Clinical Research at Sierra Eye Associates, and is Co-Chaired by Jeffrey S. Heier, MD, Ophthalmic Consultants of Boston and Peter K. Kaiser, MD, Cole Eye Institute, Cleveland Clinic. CTS is an invitation-only, in-person meeting where participants will have the exclusive opportunity to interact with the top national and international key opinion leaders in retina at the Fontainebleau Las Vegas. For more information visit: About the OpRegen Phase 1/2a Study The Phase 1/2a study is an open-label, single-arm, multi-center, dose-escalation trial evaluating a single administration of OpRegen cell therapy delivered subretinally in patients with bilateral GA secondary to AMD. Twenty-four patients were enrolled into 4 cohorts. The first 3 cohorts enrolled only legally blind patients with a best corrected visual acuity (BCVA) of 20/200 or worse. The fourth cohort enrolled 12 patients with impaired vision (BCVA from 20/65 to 20/250 with smaller mean areas of GA). Cohort 4 also included patients treated with a new 'thaw-and-inject' formulation of OpRegen cell therapy, which can be shipped directly to sites and used immediately upon thawing, removing the complications and logistics of having to use a dose preparation facility. The primary objective of the study was to evaluate the safety and tolerability of OpRegen cell therapy as assessed by the incidence and frequency of treatment-emergent adverse events. Secondary objectives include evaluating the preliminary activity of OpRegen cell therapy treatment by assessing the changes in ophthalmological parameters measured by various methods of primary clinical relevance. About Geographic Atrophy GA is an advanced form of AMD characterized by severe loss of visual function. GA is a leading cause of adult blindness in the developed world, affecting at least 5 million people globally. There are two forms of advanced AMD: neovascular AMD and GA. GA and neovascular AMD can occur simultaneously in the same eye, and patients treated for neovascular AMD may still go on to develop GA. GA typically affects both eyes. About Lineage Cell Therapeutics, Inc. Lineage Cell Therapeutics is a clinical-stage biotechnology company developing allogeneic, or 'off the shelf', cell therapies for serious neurological and ophthalmic conditions. Lineage's programs are based on its proprietary cell-based technology platform and associated development and manufacturing capabilities. From this platform, Lineage designs, develops, manufactures, and tests specialized human cells with anatomical and physiological functions similar or identical to cells found naturally in the human body. These cells are created by applying directed differentiation protocols to established, well-characterized, and self-renewing pluripotent cell lines. These protocols generate cells with characteristics associated with specific and desired developmental lineages. Cells derived from such lineages are transplanted into patients in an effort to replace or support cells that are absent or dysfunctional due to degenerative disease, aging, or traumatic injury, and to restore or augment the patient's functional activity. Lineage's neuroscience focused pipeline currently includes: (i) OpRegen ®, a retinal pigment epithelial cell therapy in Phase 2a development under a worldwide collaboration with Roche and Genentech, a member of the Roche Group, for the treatment of geographic atrophy secondary to age-related macular degeneration; (ii) OPC1, an oligodendrocyte progenitor cell therapy in Phase 1/2a development for the treatment of spinal cord injuries; (iii) ReSonance (ANP1), an auditory neuronal progenitor cell therapy for the potential treatment of auditory neuropathy; (iv) PNC1, a photoreceptor neural cell therapy for the potential treatment of vision loss due to photoreceptor dysfunction or damage; and (v) RND1, a novel hypoimmune induced pluripotent stem cell line being developed under a gene editing partnership. For more information, please visit or follow the company on X/Twitter @LineageCell. Forward-Looking Statements Lineage cautions you that all statements, other than statements of historical facts, contained in this press release, are forward-looking statements. In some cases, forward-looking statements, can be identified by terms such as 'believe,' 'aim,' 'may,' 'will,' 'estimate,' 'continue,' 'anticipate,' 'design,' 'intend,' 'expect,' 'could,' 'can,' 'plan,' 'potential,' 'predict,' 'seek,' 'should,' 'would,' 'contemplate,' 'project,' 'target,' 'suggest,' or the negative version of these words and similar expressions. Such forward-looking statements include, but are not limited to, statements relating to: the potential therapeutic benefits of OpRegen cell therapy in patients with GA secondary to AMD and the significance of the Phase 1/2a clinical study data reported to date. Forward-looking statements involve known and unknown risks, uncertainties and other factors that may cause Lineage's actual results, performance or achievements to be materially different from future results, performance or achievements expressed or implied by the forward-looking statements in this press release, including, but not limited to, the following risks: that positive findings in early clinical studies of a product candidate may not be predictive of success in subsequent clinical studies of that candidate; that Roche and Genentech may not successfully advance OpRegen or be successful in completing clinical trials for OpRegen and/or obtaining regulatory approval for OpRegen in any particular jurisdiction; that the ongoing Israeli regional conflict may materially and adversely impact our manufacturing processes, including cell banking and product manufacturing for our cell therapy product candidates, all of which are conducted by our subsidiary in Jerusalem, Israel; that Lineage may not be able to manufacture sufficient clinical quantities of its product candidates in accordance with current good manufacturing practice; and those risks and uncertainties inherent in Lineage's business and other risks discussed in Lineage's filings with the Securities and Exchange Commission (SEC). Lineage's forward-looking statements are based upon its current expectations and involve assumptions that may never materialize or may prove to be incorrect. Further information regarding these and other risks is included under the heading 'Risk Factors' in Lineage's periodic reports with the SEC, including Lineage's most recent Annual Report on Form 10-K filed with the SEC and its other subsequent reports, which are available on the SEC's website at You are cautioned not to place undue reliance on forward-looking statements, which speak only as of the date on which they were made. All forward-looking statements are expressly qualified in their entirety by these cautionary statements. Lineage undertakes no obligation to update any forward-looking statement to reflect events that occur or circumstances that exist after the date on which they were made except as required by law.

Cognition Therapeutics Presented Data at Association for Research in Vision and Ophthalmology Showing Impact on Retinal Cell Health
Cognition Therapeutics Presented Data at Association for Research in Vision and Ophthalmology Showing Impact on Retinal Cell Health

Yahoo

time09-05-2025

  • Business
  • Yahoo

Cognition Therapeutics Presented Data at Association for Research in Vision and Ophthalmology Showing Impact on Retinal Cell Health

PURCHASE, N.Y., May 09, 2025 (GLOBE NEWSWIRE) -- Cognition Therapeutics, Inc. (NASDAQ: CGTX), a clinical-stage company developing drugs that treat neurodegenerative disorders, reported preclinical data this week at the Association for Research in Vision and Ophthalmology (ARVO) showing the potential for zervimesine (CT1812) to protect retinal pigment epithelial (RPE) cells from damage in dry age-related macular degeneration (dry AMD). "Dry AMD is driven by a number of factors that contribute to the death of retinal cells, leading to irreversible vision loss," stated Mary Hamby, PhD, vice president of research. "Preclinical research presented at ARVO supports our understanding of zervimesine's potential for supporting retinal cell health and function." Zervimesine is an oral drug candidate that has been shown to reach therapeutic concentrations in the eye and was investigated in the Phase 2 MAGNIFY clinical trial (NCT05893537). It binds to a receptor (TMEM97, also called the sigma-2 receptor), which is found on cells in the retina and brain. A poster presented by research scientist, Britney Lizama, PhD, shows that this receptor regulates the ability of retinal cells to take in low-density lipoprotein (LDL), a major fuel source for cells. The process that cells use to take in lipids is damaged in dry AMD, weakening the retinal cells and contributing to their mortality. A second poster presented by Drs. Hamby and Lizama, shows zervimesine may protect retinal cells from the onslaught of oxidized lipids. In dry AMD, oxidized lipids build up in the retina. Together with other waste products, these lipids form aggregates called drusen, which is a hallmark of dry AMD. Drusen is believed to damage RPE cells and contribute to their eventual loss and subsequent loss of photoreceptors. These data add to our growing understanding of zervimesine's mechanism and its potential impact across age-related degenerative diseases. In a Phase 2 proof-of-concept clinical trial in 100 people with geographic atrophy secondary to dry AMD, treatment with zervimesine was shown to slow the rate of GA lesion growth by 28.6% compared to placebo. As a result, people treated with zervimesine had smaller GA lesions on average at the end of the study than did their placebo counterparts. In addition to dry AMD, zervimesine's potential to rescue cellular function in degenerative diseases is supported by robust clinical results from studies in people with Alzheimer's disease and dementia with Lewy bodies. Cognition Therapeutics at ARVO: Title: Sigma-2 Receptor Modulation Promotes Retinal Pigment Epithelial Cell Survival Following Chronic 7-Ketocholesterol Exposure Authors: Hamby ME, Lizama BN, Reaver A, Knezovich N, Caldwell J, Di Caro V, Caggiano AO Title: Delineating Mechanisms of Sigma-2 Receptor Modulators in Regulating Retinal Pigment Epithelial Lipid Uptake Authors: Lizama BN, Reaver A, Di Caro V, Caggiano AO, Hamby ME Posters are available on the company's Publications webpage. About Dry AMD Dry AMD is the more prevalent of two forms of age-related macular degeneration and accounts for up to 90% of cases. Dry AMD is caused by damage and loss of light-sensing cells in the macula, the part of the retina responsible for central vision. The gradual loss of central vision associated with dry AMD can present limitations in reading and driving. As the disease progresses in severity to geographic atrophy, lesions form on the macula that create a blind spot in central vision. These lesions grow over time leading to irreversible loss of central vision. About Zervimesine (CT1812) Zervimesine (CT1812) is an investigational oral, once-daily pill being developed for the treatment of CNS diseases such as Alzheimer's disease and dementia with Lewy bodies (DLB). While these diseases have different symptoms, both are associated with the buildup of certain proteins in the brain - Aβ and ɑ-synuclein. As these proteins bind to neurons, they can damage and ultimately destroy the neurons. This results in a progressive loss in a person's ability to learn, recall memories, move efficiently, or communicate. These diseases progress relentlessly and ultimately result in death. If zervimesine can interrupt the toxic effects of these proteins, it may be able to slow progression of disease and improve the lives of those suffering from Alzheimer's and DLB. Zervimesine has been generally well tolerated in clinical studies to date. The USAN Council has adopted zervimesine as the United States Adopted Name (USAN) for CT1812. About Cognition Therapeutics, Inc. Cognition Therapeutics, Inc., is a clinical-stage biopharmaceutical company discovering and developing innovative, small molecule therapeutics targeting age-related degenerative disorders of the central nervous system. We are currently investigating our lead candidate, zervimesine (CT1812), in clinical programs in dementia with Lewy bodies (DLB) and Alzheimer's disease, including the ongoing START study (NCT05531656) in early Alzheimer's disease. We believe zervimesine can regulate pathways that are impaired in these diseases though its interaction with the sigma-2 receptor, a mechanism that is functionally distinct from other approaches for the treatment of degenerative diseases. More about Cognition Therapeutics and our pipeline can be found at Forward-Looking Statements This press release contains forward-looking statements within the meaning of The Private Securities Litigation Reform Act of 1995. All statements contained in this press release, other than statements of historical facts or statements that relate to present facts or current conditions, including but not limited to, statements regarding our expected runway, product candidates, including zervimesine (CT1812), and any expected or implied benefits or results, including that initial clinical results observed with respect to zervimesine will be replicated in later trials and our clinical development plans, and expectations regarding timing, success and data announcements of current ongoing preclinical and clinical trials are forward-looking statements. These statements, including statements relating to the timing and expected results of our clinical trials involve known and unknown risks, uncertainties and other important factors that may cause our actual results, performance, or achievements to be materially different from any future results, performance, or achievements expressed or implied by the forward-looking statements. In some cases, you can identify forward-looking statements by terms such as 'may,' 'might,' 'will,' 'should,' 'expect,' 'plan,' 'aim,' 'seek,' 'anticipate,' 'could,' 'intend,' 'target,' 'project,' 'contemplate,' 'believe,' 'estimate,' 'predict,' 'forecast,' 'potential' or 'continue' or the negative of these terms or other similar expressions. We have based these forward-looking statements largely on our current expectations and projections about future events and financial trends that we believe may affect our business, financial condition, and results of operations. These forward-looking statements speak only as of the date of this press release and are subject to a number of risks, uncertainties and assumptions, some of which cannot be predicted or quantified and some of which are beyond our control. Factors that may cause actual results to differ materially from current expectations include, but are not limited to: competition; our ability to secure new (and retain existing) grant funding; our ability to grow and manage growth, maintain relationships with suppliers and retain our management and key employees; our ability to successfully advance our current and future product candidates through development activities, preclinical studies and clinical trials and costs related thereto; uncertainties inherent in the results of preliminary data, pre-clinical studies and earlier-stage clinical trials being predictive of the results of early or later-stage clinical trials; the timing, scope and likelihood of regulatory filings and approvals, including regulatory approval of our product candidates; changes in applicable laws or regulations; the possibility that the we may be adversely affected by other economic, business or competitive factors, including ongoing economic uncertainty; our estimates of expenses and profitability; the evolution of the markets in which we compete; our ability to implement our strategic initiatives and continue to innovate our existing products; our ability to defend our intellectual property; impacts of global political changes and global economic conditions on our business, supply chain and labor force; our ability to maintain the listing of our common stock on the Nasdaq Global Market; and the risks and uncertainties described more fully in the 'Risk Factors' section of our annual and quarterly reports filed with the Securities Exchange Commission and are available at These risks are not exhaustive, and we face both known and unknown risks. You should not rely on these forward-looking statements as predictions of future events. The events and circumstances reflected in our forward-looking statements may not be achieved or occur, and actual results could differ materially from those projected in the forward-looking statements. Moreover, we operate in a dynamic industry and economy. New risk factors and uncertainties may emerge from time to time, and it is not possible for management to predict all risk factors and uncertainties that we may face. Except as required by applicable law, we do not plan to publicly update or revise any forward-looking statements contained herein, whether as a result of any new information, future events, changed circumstances or otherwise. Contact Information: Cognition Therapeutics, Casey McDonald (media) Tiberend Strategic Advisors, Mike Moyer (investors)LifeSci Advisors mmoyer@ This press release was published by a CLEAR® Verified individual.

What is exercise RPE? Here's how it can boost performance and prevent injury
What is exercise RPE? Here's how it can boost performance and prevent injury

Tom's Guide

time06-05-2025

  • Health
  • Tom's Guide

What is exercise RPE? Here's how it can boost performance and prevent injury

If you've never heard of RPE before, it simply stands for Rate of Perceived Exertion. Or to put it another way, it's how fatigued you are or how intense an exercise feels during any given workout routine. For example, if I'm lifting weights and I rate my RPE at about a seven to eight out of 10, I'm probably working at the correct intensity for my ability. Any less, and maybe I'm not lifting heavy enough weights to challenge my muscles; any more, and perhaps my form would slip and I'd potentially compromise my range of motion. Here's everything you need to know about RPE and how to use it to boost performance and avoid injury. RPE refers to your perceived exertion — how hard you work during exercise on a scale from 0 to 10. It's most popular with exercise styles like endurance training or HIIT, where the exerciser can gauge how intense their efforts feel. You can use several methods to measure RPE, including heart rate, how fatigued your muscles feel and how much you sweat. In my role as a personal trainer, I don't really focus on the last one, as some people are more inclined to sweat than others. Heart rate and how fast you breathe are my top concerns, along with whether you're struggling to lift a weight or complete a set of exercises properly. As trainers, we use RPE to measure how a client feels during a workout and whether or not we need to increase or decrease intensity. It's a simple and fast way to assess if a workout is doing its job, or whether or not we need to adjust. Get instant access to breaking news, the hottest reviews, great deals and helpful tips. When working with a new client, RPE allows trainers to quickly gauge a client's ability on the go — do they need more load, fewer reps, a longer rest? If we don't know someone's maximal or submaximal load for an exercise, RPE allows us to make an informed guess very quickly. Of course, when working with a client long term, especially with resistance training, you'll need to be more technical. I always test someone's one-rep max (or close to it) to determine submaximal ranges for exercises. For example, if I know my client has a one-rep max of 100kg on the bench press, I can quickly take a percentage of this to decide how much he or she lifts for 8-12 reps and 3-4 sets during a session. Of course, this ranges depending on the exercise type, goals and the client. Without these figures, it makes it very difficult to assess how to train someone properly and tap into the principles of progressive overload. While you might not use RPE all the time for weightlifting, you can use it more regularly for workouts like HIIT, treadmill sprints, yoga, or Pilates. I wouldn't recommend using RPE all the time, but it's certainly one way of determining how hard (or not!) you're pushing yourself during a workout. If you're new to exercise, returning from injury, pregnant, or have an existing health condition, RPE can help prevent overexertion. If you enjoy sports like running, tempo training, or are training for events like a marathon, being able to assess how you feel during exercise can prevent you from pushing yourself too far. It's also useful if you want to increase your capacity and enjoy measuring your heart rate zones. For example, if your goal is to sit within a moderate effort — say, a six out of 10 — then RPE can be used to assess whether you need to push harder or back off. It's pretty obvious when you're hitting a solid nine on the effort, but those middle ranges can be trickier to determine. If you don't have access to your workout data, consider how long you could sustain the effort comfortably. If you could keep going for hours, this would tell you a lot about your effort or where you sit on the scale. However, there are some drawbacks to RPE. It's self-reported, which means it's not based on data and accuracy is limited. When lifting weights, you have numbers you can stamp on your efforts, just as you can while wearing the best fitness trackers. That said, it could be useful to compare your RPE to your fitness wearable to help you determine what your body is saying to you and note any variations. Although RPE has limited accuracy, it's an accessible way to check in on your body during exercise. If you find your pace or the weights too easy, you'll know to add load or increase pace. On the flipside, if you're panting, sweating and barely able to continue, you'll know to back off. Your heart rate is a great indicator of your overall health, particularly your resting heart rate. The lower this number, especially as you age, the better. If you have any concerns while exercising, always speak with a qualified health professional.

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