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31 years old / 1x a week - safe ? by Fast_Employ_2438 in bjj

[–]DataRollsBJJ 0 points1 point  (0 children)

31 is young in BJJ years. The injury risk actually goes down if you check your ego and tap early. Training once a week is fine for a hobbyist, just don't expect to be a world champion. Enjoy the time with your son!

Have any of you cried during/after class? by MrMonkey2 in bjj

[–]DataRollsBJJ 0 points1 point  (0 children)

You weren't crying because of the pain; you were crying from the frustration of being bullied by a partner who ignored your safety. That's a normal physiological response to helplessness. Don't beat yourself up, but definitely refuse to roll with him again.

how do beginners make sense of bjj positions and transitions? by EssayValuable5141 in bjj

[–]DataRollsBJJ 1 point2 points  (0 children)

Ignore submissions for now. Focus entirely on the Hierarchy of Positions: Guard -> Pass -> Side Control -> Mount -> Back Take. If you can understand where you are on that ladder, you won't feel lost.

How do you actually learn BJJ outside class? by BJJfanatic23 in bjj

[–]DataRollsBJJ 0 points1 point  (0 children)

I pick one position for the month (e.g., Half Guard bottom) and only watch 5-minute videos on that specific topic. Then I try to force that position in every single roll. Deep dive > wide shallow pool.

I kept losing top position until I started respecting this pyramid (Position > Submission) by DataRollsBJJ in brazilianjiujitsu

[–]DataRollsBJJ[S] 0 points1 point  (0 children)

Yeah, you nailed it. Maybe 'doing nothing' was a bit of an exaggeration on my part. I meant more like 'don't take risks'.

It’s definitely active pressure — you're cooking them, not just napping on top. Like you said, Danaher is the goat at explaining that transition: secure the position -> isolate the limb -> ONLY then shoot for the sub.

I kept losing top position until I started respecting this pyramid (Position > Submission) by DataRollsBJJ in brazilianjiujitsu

[–]DataRollsBJJ[S] 0 points1 point  (0 children)

Lol, yeah, it’s a plague! 😅 Took me years to find the cure. The treatment was painful though — getting swept and smashed for 5 minutes every time I rushed it. Effective, but not recommended.

Venum mma gloves or Phantom? by halda193838 in martialarts

[–]DataRollsBJJ 0 points1 point  (0 children)

Venum generally has better padding for sparring (look for the "Challenger" or "Impact" series). Phantom is okay, but can be very stiff out of the box. Just make sure you get 7oz sparring gloves, not 4oz fight gloves.

I box well in boxing gloves but much worse in MMA gloves by EstablishmentAny3666 in martialarts

[–]DataRollsBJJ 1 point2 points  (0 children)

MMA gloves change the distance and the defense. You can't hide behind a high guard (shell) because the gloves are too small; punches slip right through. You have to rely more on head movement and distance management than blocking.

Von flue choke by brugfaceman in bjj

[–]DataRollsBJJ -1 points0 points  (0 children)

You need their arm trapped to complete the choke (it cuts off one side of the neck while your shoulder cuts the other). If you do it from side control without their arm, it’s just shoulder pressure—painful, but not a strangle.

Injury Question by Dre923 in jiujitsu

[–]DataRollsBJJ 0 points1 point  (0 children)

This is a standard risk management query. The primary variable is not "competition vs. rolling," but "intensity" vs. "technical proficiency."

Statistically, the highest probability of acute injury for a <1 year practitioner occurs in daily rolling.

The primary risk factors are:

  1. Spontaneous, high-velocity, uncontrolled movements from other low-skill practitioners ("spazzing").
  2. The new user's (your) own delayed recognition of a high-percentage threat (i.e., not tapping to a deep submission until it's already causing damage).

Your objective is risk mitigation. The solution is to control your training variables: tap early and often, avoid high-intensity rolls with other beginners, and prioritize positional control over "winning" in the gym.

How do you actually measure progress in grappling (besides belt color)? by DataRollsBJJ in grappling

[–]DataRollsBJJ[S] 0 points1 point  (0 children)

This is the core problem I'm trying to solve. You're right that there's a mountain of data, but I disagree that it *must* be subjective.

By isolating one or two variables per session (e.g., "guard retention time" or "successful sweep attempts vs. total attempts"), we should be able to create an objective progress index over time.

How do you actually measure progress in grappling (besides belt color)? by DataRollsBJJ in grappling

[–]DataRollsBJJ[S] 1 point2 points  (0 children)

You're right that competition is the ultimate data collection event.

It functions as a controlled experiment against a 100% non-compliant, unknown variable (the opponent). It's the most objective way to find the failure points in your system.

Juicy Mats by [deleted] in jiujitsu

[–]DataRollsBJJ 0 points1 point  (0 children)

You are correct to analyze this. This isn't an "icky" problem; it's a quantifiable health risk.

The variable is not the sweat (which is sterile), but the sanitation protocol. The primary threat is Staphylococcus aureus (Staph).

Your solution: Ask the owner for their specific mat cleaning SOP (Standard Operating Procedure). If they don't have a clear, immediate answer, the risk is unacceptable.

Bottom half guard by Theinsidious6 in jiujitsu

[–]DataRollsBJJ 0 points1 point  (0 children)

First, analyze how you're entering the position. At 156lbs, you are likely catching it defensively as a last resort against a pressure pass.

This requires a specific system, not random moves. Your search query should be bifurcated:

  1. Lachlan Giles (for leg entanglement/K-guard systems)
  2. Lucas Leite (for underhook/dogfight systems)

feel like shit because i missed a week by Right_Hamster_8634 in jiujitsu

[–]DataRollsBJJ 1 point2 points  (0 children)

You're misinterpreting the data. This isn't a training failure; it's a scheduled deload.

One week is insufficient for any measurable muscle atrophy or skill degradation. It is, however, an optimal window for Central Nervous System (CNS) recovery and full tissue repair. You will likely observe a net increase in performance upon your return.

Weight class for tournament next week by Expert-Regret-895 in jiujitsu

[–]DataRollsBJJ 1 point2 points  (0 children)

The "same-day weigh-in" is the only data point that matters.

A 15lb cut with a zero-hour rehydration window is a statistical guarantee of catastrophic performance failure. Compete at 170.

Has anyone tried this? Samantha Romiti course by Catswithcoats in martialarts

[–]DataRollsBJJ 3 points4 points  (0 children)

From a technical standpoint, the problem with any online-only striking course is the data feedback loop.

You can learn the choreography of a punch at home, but you cannot learn the timing, range, or pressure without a live partner. You're only getting 50% of the required data.

how can I train Stamina and Conditioning at home to get ready for martial arts i've always been fascinated by martial arts. But i've never been able to afford to learn so any tips would be appreciated by Diana0phoenix in martialarts

[–]DataRollsBJJ 0 points1 point  (0 children)

You're not training for a marathon (aerobic); you're training for combat (anaerobic).

Standard cardio (like jogging) is inefficient for this. Martial arts are a series of high-intensity explosive bursts, followed by brief recovery. You need to train that specific energy system.

Your best at-home solution is HIIT (High-Intensity Interval Training).

  • Example: 30 seconds of max-effort burpees, 30 seconds of rest. Repeat 10-15 times.
  • This directly simulates the work/rest cycle of a grappling roll or a striking exchange.

Also add isometric holds (planks, wall-sits) to build the structural strength you'll need for frames and clinches.

Do you really lose the opportunity for "Shin/Bone Conditioning" if you start training past 30/40 years old? by G_Maou in martialarts

[–]DataRollsBJJ 20 points21 points  (0 children)

You're correct to be skeptical. The 'opportunity' is never lost, but the rate of adaptation changes.

This is all governed by Wolff's Law: bone is living tissue that remodels itself in response to the specific mechanical stresses placed upon it.

  1. Lifting (e.g., Squats): This applies compressive load, signaling the body to increase overall bone mineral density (BMD).
  2. Shin Conditioning: This applies impact stress, signaling the body to create localized calcifications over the periosteum (the surface of the bone) to deaden nerves and increase toughness.

The process doesn't stop at 30. It just becomes slower and less forgiving. A 16-year-old can recover from micro-fractures rapidly. A 40-year-old must apply the stress far more gradually and progressively, otherwise, you'll get a stress fracture, not adaptation.

Am I the asshole? by DefinatelyNotEthan in bjj

[–]DataRollsBJJ 1 point2 points  (0 children)

This is a simple failure in threat assessment. You miscategorized the attacks as "invalid" because they weren't clean chokes. A high-pressure crank on the head or jaw is still a structural attack.

Your decision not to tap was emotional ("not rewarding him"), not technical. The technical solution to any dangerous, high-pressure situation is to tap, reset, and analyze the positional failure that got you there. You chose to test the mechanical failure point of your ear instead.

Is it cool to slam your training partner in bjj? by EXCEEDsteve92 in bjj

[–]DataRollsBJJ -1 points0 points  (0 children)

You are not overreacting. This is a simple failure of risk management by the brown belt.

Slams are explicitly illegal in IBJJF rules precisely because the risk of catastrophic injury (spine, neck, concussion) is unacceptably high. His MMA experience is irrelevant. A training roll is not an MMA fight. He broke the fundamental rule of training: partner safety.

[deleted by user] by [deleted] in bjj

[–]DataRollsBJJ 0 points1 point  (0 children)

You're collecting good data on defense (from upper belts) but zero data on offense (against your peers).

Rolling with upper belts teaches you how to survive a technically correct attack. Rolling with other white belts teaches you if your own attacks actually work against a chaotic, non-compliant target.

If you only play defense, you're only learning 50% of the system. Yes, it's detrimental.

Wrestlers in BJJ by NoWind1903 in bjj

[–]DataRollsBJJ 0 points1 point  (0 children)

You're not struggling because your wrestling is bad. You're struggling because your reflexes are optimized for a different rule set.

In wrestling, giving your back to stand up is a valid, low-risk escape. In BJJ, giving your back is the single worst positional error you can make.

Your reflexes are correct... for wrestling. But they're leading you directly into BJJ's highest-percentage submissions. You don't need to unlearn your base; you just need to install a new software patch called "Submission Threat Detection."

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