Latest / Glaucoma, Vision & Longevity: Supplements & Science / General Resistance Training and Glaucoma: Building Strength While Managing IOP Spikes
Transcript
- 0:00SPEAKER_00: General Resistance Training in Glaucoma Building Strength while managing IOP spikes.
- 0:05SPEAKER_00: Introduction.
- 0:06SPEAKER_00: Strength training is a proven way to boost fitness, control weight, improve blood sugar and blood pressure, and build muscle and bone.
- 0:14SPEAKER_00: Benefits that reduce risk of diabetes, heart disease, and falls in older adults.
- 0:20SPEAKER_00: However, for people with glaucoma, a disease caused by damage to the optic nerve, often from high eye pressure, heavy lifting can briefly spike intraocular pressure inside the eye.
- 0:31SPEAKER_00: Since high IOP is the main modifiable risk factor for glaucoma progression, we must find a balance.
- 0:37SPEAKER_00: Enjoy the health perks of resistance exercise while keeping IOP under control.
- 0:43SPEAKER_00: Why strength training matters?
- 0:45SPEAKER_00: Resistance exercises, like lifting weights or using bands, help maintain metabolic health and strength as we age.
- 0:52SPEAKER_00: Regular strength training lowers body fat and abdominal obesity, improves insulin sensitivity and blood sugar control, and even modestly reduces blood pressure.
- 1:01SPEAKER_00: This combats features of metabolic syndrome, which raises diabetes and heart disease risk.
- 1:06SPEAKER_00: Strength workouts also fight sarcopenia, age-related muscle loss, and osteoporosis, bone thinning, keeping older adults stronger and more independent.
- 1:17SPEAKER_00: Importantly, studies show that stronger muscles and better balance from resistance training dramatically reduce fall risk in seniors.
- 1:25SPEAKER_00: In short, smart strength training can improve overall health, mood, and quality of life while helping prevent fractures.
- 1:32SPEAKER_00: How lifting affects eye pressure.
- 1:35SPEAKER_00: Although exercise often lowers IOP after a workout, heavy or strained lifting can acutely raise IOP.
- 1:42SPEAKER_00: We briefly review key findings.
- 1:44SPEAKER_00: Dynamic versus isometric, static hold, lifts, load intensity, breath holding, and head position.
- 1:50SPEAKER_00: Heavy versus moderate loads, multiple studies find that heavier weights cause bigger IOP spikes.
- 1:56SPEAKER_00: For example, one review noted that lifting heavy loads and using multi-joint exercises like squats or bench press produce the greatest IOP increases.
- 2:05SPEAKER_00: In a leg press study, lifting 95 Bronz max 1RM caused IOP jumps of 27 millimeter on average, reaching 40 millimeters absolute, well above normal, often 12 to 15 millimeter hergrams.
- 2:17SPEAKER_00: Even moderate heavy sets, six reps at 75% 1RM, raised IOP by 24 millimeter hergrangs.
- 2:24SPEAKER_00: By contrast, lighter weights cause smaller spikes.
- 2:28SPEAKER_00: One analysis suggests that using only 20 to 30% of 1RM, often combined with blood flow restriction, can still build muscle, but with much lower pressure changes.
- 2:37SPEAKER_00: In practice, choosing moderate weights, e.g., starting around half to two-thirds of your 1RM, and doing more repetitions tends to produce smaller IOP rises than max effort lifts.
- 2:48SPEAKER_00: Dynamic versus isometric lifting.
- 2:50SPEAKER_00: Both moving exercises and static holds can raise IOP, but their effects may differ.
- 2:55SPEAKER_00: A study comparing three types of leg exercises found that maximal lifts, one rep at 95% 1RM, and a static isometric push against an immovable load both caused similar large IOP spikes, 27-29 mH increase, whereas multiple reps at 75%, 6RM, caused slightly smaller spike, 24 mmhergrams.
- 3:16SPEAKER_00: In other words, holding a heavy weight still causes dramatic pressure jumps comparable to lifting heavy.
- 3:22SPEAKER_00: Earlier work with bench press showed the same.
- 3:25SPEAKER_00: Just lifting a heavy weight caused IOP to rise by a few millimeterhergrams, but if the trainee held their breath, turning it into a quasi-isometric effort, the increase was even larger.
- 3:36SPEAKER_00: In summary, static straining, isometric effort tends to raise IOP very sharply, often as much or more than dynamic lifts.
- 3:45SPEAKER_00: The Valsalva maneuver, breath holding, holding your breath while straining the valsalva maneuver hugely increases IOP.
- 3:52SPEAKER_00: Studies show that any effort involving a closed glottis strain drives up chest and abdominal pressure, which transmits to the eye.
- 3:59SPEAKER_00: In some reported cases, brief valsalva maneuvers shot IOP over 40 to 50 millimeter her grams.
- 4:05SPEAKER_00: One bench press study found that breath holding during the lift raised mean IOP by 4.3 millimeters range range up to plus 17.7 mm versus only plus 2, 2 mmHH when breathing normally.
- 4:17SPEAKER_00: In practical terms, never hold your breath or strain forcefully while lifting.
- 4:21SPEAKER_00: Exhale on the exertion.
- 4:23SPEAKER_00: Even gentle valsalva, like a deep breath, can add several moment grounds of pressure, so staying relaxed and breathing steadily is critical.
- 4:30SPEAKER_00: Body position, head-down lifts.
- 4:33SPEAKER_00: Inverted or head-down positions greatly elevate IOP.
- 4:36SPEAKER_00: Yoga studies show that poses like downward dog or plow increase eye pressure substantially.
- 4:42SPEAKER_00: One analysis noted that even a modest head-down tilt rapidly elevates IOP and keeps it high for minutes.
- 4:49SPEAKER_00: In practice, exercises that put your head below your heart, bending far forward, inverted lifts, or lying flat on back, should be minimized.
- 4:58SPEAKER_00: For example, when performing lower body lifts like leg presses, keep an upright neck and avoid deep forward bends.
- 5:04SPEAKER_00: In yoga and other routines, avoid prolonged inverted poses, e.g.
- 5:09SPEAKER_00: downward facing dog, seated forward fold, headstands.
- 5:12SPEAKER_00: In summary, strenuous lifting, heavy loads plus valsalva plus poor head position causes large IOP spikes.
- 5:19SPEAKER_00: But controlled, moderate intensity training, no breath holds, upright posture limits those spikes.
- 5:25SPEAKER_00: Safe strength training guidelines.
- 5:27SPEAKER_00: The good news you can still lift weights safely with glaucoma by following a careful protocol.
- 5:32SPEAKER_00: Moderate loads and higher reps.
- 5:35SPEAKER_00: Use sub-maximal weights.
- 5:37SPEAKER_00: For example, weights you can lift 10 to 15 times instead of 1 to 5 times.
- 5:41SPEAKER_00: A sensible target is 5 to 8 exercises for major muscle groups, performing 10 to 15 repetitions per set at roughly 50 to 70% of your 1RM.
- 5:51SPEAKER_00: In contrast, avoid very heavy singles or low rep sets at 80 to 90% loads.
- 5:58SPEAKER_00: Moderate weight means the effort feels challenging but not maximal.
- 6:02SPEAKER_00: For example, leg pressing or squatting with half your maximum weight will cause far smaller pressure rises than straining with near maximal loads.
- 6:10SPEAKER_00: Breathing, no valsalva.
- 6:12SPEAKER_00: Exhale steadily during the lifting strain phase and inhale on the return.
- 6:17SPEAKER_00: Never hold your breath.
- 6:18SPEAKER_00: A telling study found bench press IOP increases went from 2 mm to 4 mm g simply by breath holding.
- 6:26SPEAKER_00: Good rhythm.
- 6:27SPEAKER_00: Exhale when pushing, pulling prevents the big pressure surges of breath holding.
- 6:31SPEAKER_00: Avoid straining or max effort.
- 6:33SPEAKER_00: Stop each set well before failure.
- 6:36SPEAKER_00: Do not push the last rep if it forces you to gasp or hold breath.
- 6:39SPEAKER_00: Avoid maximal static holds entirely.
- 6:42SPEAKER_00: Even a 10-second all-out leg push spiked IOP 28mm hergrams in one study.
- 6:48SPEAKER_00: In practice, choose weights that allow comfortable breathing and form throughout each set.
- 6:53SPEAKER_00: If you find yourself gripping near max and feeling pressure buildup, lighten the load or skip that set.
- 6:59SPEAKER_00: Proper positioning.
- 7:00SPEAKER_00: Keep your head level or higher than your heart.
- 7:02SPEAKER_00: Perform exercises standing, seated, or lying face up, not prone or inverted.
- 7:08SPEAKER_00: Avoid exercises that tuck your chin to chest or tilt head down, e.g.
- 7:12SPEAKER_00: deep forward barbell bends or certain plank variations.
- 7:16SPEAKER_00: If using machines like a leg press or seated row, ensure you aren't arching or bending low in a way that lowers the head too much.
- 7:24SPEAKER_00: Rest between sets.
- 7:25SPEAKER_00: Allow at least one to two minutes of rest between sets.
- 7:29SPEAKER_00: Research has shown that IOP spikes during a lift normalize within seconds after stopping, giving brief rest and breathing calmly.
- 7:37SPEAKER_00: Let's your eye pressure return to baseline before the next set.
- 7:42SPEAKER_00: Monitor effects.
- 7:43SPEAKER_00: Pay attention to any symptoms like eye pain, blurred vision, or halos during or after exercise.
- 7:50SPEAKER_00: These could signal unsafe pressure spikes.
- 7:53SPEAKER_00: It's wise to get a baseline IOP check and then discuss your exercise plan with your eye doctor.
- 7:58SPEAKER_00: Portable home tonometers are uncommon, but be vigilant about eye symptoms and follow your doctor's advice on regular pressure checks.
- 8:05SPEAKER_00: Always stop the exercise if you feel strained and see a sudden change in vision.
- 8:10SPEAKER_00: Weighing benefits versus risks.
- 8:12SPEAKER_00: While heavy lifting can raise concern, remember the overall benefits of being active.
- 8:17SPEAKER_00: Moderate strength training can lower IOP over time and help your general health.
- 8:22SPEAKER_00: Some studies show that after completing an exercise session, even resistance, IOP often drops below baseline and stays lower for a while.
- 8:31SPEAKER_00: Plus, fitter individuals tend to have smaller pressure spikes.
- 8:35SPEAKER_00: Nonetheless, nobody suggests weightlifting is completely risk-free for glaucoma.
- 8:40SPEAKER_00: In fact, several reviews caution that abrupt IOP surges could contribute to glaucoma progression.
- 8:46SPEAKER_00: Therefore, glaucoma patients are encouraged to exercise with care.
- 8:51SPEAKER_00: Regular cardiorespiratory exercise, walking, cycling, swimming, is clearly safe and beneficial, and strength training can be included if done wisely.
- 9:00SPEAKER_00: Post-surgery and monitoring advice.
- 9:03SPEAKER_00: After any eye surgery, glaucoma surgery, cataract removal, retinal surgery, etc., special care is needed.
- 9:09SPEAKER_00: Follow your surgeon's rules.
- 9:11SPEAKER_00: Doctors vary by procedure, but common advice is to pause strenuous exercise for a period.
- 9:16SPEAKER_00: For example, after refractive surgeries like LASIK, most surgeons recommend no heavy workouts for about two weeks.
- 9:23SPEAKER_00: After cataract surgery, patients are advised to avoid heavy lifting or head below waist activities for at least several days to a week.
- 9:32SPEAKER_00: After a trabeculectomy or glaucoma shunt, you might be told to avoid bending, straining, or lifting any weight for several weeks.
- 9:40SPEAKER_00: These limits protect the healing eye from pressure spikes or strain that could disrupt surgical outcomes.
- 9:47SPEAKER_00: Gradual return to training.
- 9:49SPEAKER_00: Once cleared by your eye doctor, often after four to six weeks, resume exercise very gradually.
- 9:55SPEAKER_00: Start with light movements like walking or gentle cycling.
- 9:59SPEAKER_00: You can then reintroduce very lightweight resistance sessions, e.g., bodyweight exercises or very light bands, after a month or so, checking in that you have no pain or visual issues.
- 10:10SPEAKER_00: Only after about six to eight weeks, or longer, depending on advice, should you attempt moderate weights and only if your doctor confirms your eye is stable.
- 10:19SPEAKER_00: When you restart lifting, follow all the above safety guidelines, moderate load, careful breathing, etc.
- 10:26SPEAKER_00: Ongoing monitoring.
- 10:28SPEAKER_00: Have your IOP and eye exams monitored regularly.
- 10:31SPEAKER_00: It's wise to discuss weight training with your ophthalmologist.
- 10:35SPEAKER_00: They may advise more frequent pressure checks or pauses in training if your glaucoma is not fully controlled.
- 10:41SPEAKER_00: Also, keep an eye out for warning signals.
- 10:44SPEAKER_00: New blotches of vision, floaters, or flashes, increasing blurriness or eye pain mean you should stop exercise and seek care.
- 10:52SPEAKER_00: Conclusion: resistance training can and should be part of a healthy lifestyle, even in glaucoma, because of its proven benefits for metabolism, strength, and fall prevention.
- 11:02SPEAKER_00: The key is how you train.
- 11:04SPEAKER_00: Avoid heavy, maximal lifts, breath holding, and inverted positions, which cause IOP spikes.
- 11:10SPEAKER_00: Instead, use moderate weights with more reps, breathe properly during each rep, rest adequately between sets, and steer clear of pushing to failure.
- 11:19SPEAKER_00: By following a careful protocol, many people with glaucoma can safely build strength without unduly raising their eye pressure.
- 11:28SPEAKER_00: Always communicate with your eye doctor about your workout routine, especially after any eye surgery, and watch your eyes for any changes.
- 11:36SPEAKER_00: With smart training and monitoring, you can preserve both your vision and your health.
- 11:41SPEAKER_00: All links to sources are available in the text version of this article.
- 11:45SPEAKER_00: You can find the full article at VisualFieldTest.com.
- 11:49SPEAKER_00: Thanks for listening.
- 11:51SPEAKER_00: To check your visual field, click the link at the bottom of this article or visit visualfieldtest.com.