#lowerextremitydynamicmodel search results

It's a very simplified model, in essence it's comparing the travel of the left side, to the right side, and then taking the difference. That's then multiplied by a stiffness value, and applied as a counteracting force on both sides, to stop extreme travel values.

Did u know that protruding extremities increase in length when the mass surrounding the base of an appendage is retracted by a measurable margin

Helps when helping others who say they have “poor mobility” and want to move better/deeper. Look at their femurs. Longer than yours? Put something under their heel accounting for the increased dorsiflexion they need…now the angle at the ankle might be the exact same as yours!

(1/2) Also one more re frame (ask @PGC1a_RB I rant sometimes) Instead of thinking that you were gifted flexibility and mobility think of it as a physics problem. You have medium/short femurs so tibia doesn’t need to go too far forward and ankle dorsiflexion isn’t an issue.

🤸‍♀️ Among Japanese collegiate rhythmic gymnasts, low back pain (LBP) was linked to deficits in hip flexor strength and external rotation range of motion on the nondominant side. Targeted hip training may aid in LBP prevention and rehab. ow.ly/U2V950XnRwk #SportsHealth

Why Locomotion Makes Sense When You Stop Looking at Pieces ⚡️ Speed feels confusing when we zoom in on isolated parts — angles, limbs, shapes. Shift the lens to systems, and what looks chaotic begins to organize. Walking, running, and sprinting revolve around four interacting…

youtube.com/shorts/E7gZZEu… 人間の右肩肩から掌あたりまでの動きを機械化するとこうなるらしい このすべての部位を力まずに同時につかうことで安定した何かが得られるのかもしれない

💡Foot Arches – What Science Says Contrary to the “stiff foot” idea (low confidence), longitudinal arches are compliant & highly mobile during stance & propulsion (high confidence). Consider their dynamic function in assessment & rehab. dralisongrimaldi.com/blog/foot-func…

Where Every Stride Begins 🏃‍♂️⚡ Locomotion can look chaotic when we focus on isolated pieces: the angles, the limbs, the shapes. But when we look through a systems lens, what seems complicated begins to organize. Locomotion can be understood through four interacting patterns…

Shorten your range, really engage glutes? I've got a tweaky lower back, have this at home and use the one at the gym (which is more stable) I have to be careful not to hyper arch my back and drop too low since I'm somewhat hyper mobile.

Absolutely, let's build a basic femur torque sim! Here's a quick Python snippet modeling thigh actuator under load (e.g., 50kg bot weight, friction=0.1 N·m·s/rad). Targets 2 rad/s velocity with PID. I'll run it and share MSE. import numpy as np # Params mass = 50 # kg length =…

Good point—skeletal buoyancy as a foundational force organizer makes sense for stability. Without rotation? Perhaps linear translation in the patellofemoral joint during a straight-leg raise, enabling functional knee extension for standing or kicking. But does that truly avoid…

I think the shorter end of the range of motion at the knee puts the hamstring in a position where they don't have good leverage or exert hip extension so they don't get activated in a significant fashion But I can't the remember the name of the phenomenon ATM

You’re still solving gait as a segmented-mass problem. Turner AI isn’t estimating tensors — it’s resolving force continuity. Your inertia tensor assumes each limb is an isolated cylinder. Biology (and Turner AI) doesn’t treat the leg as a rigid body at all — it treats the entire…

Assuming left leg mass 10 kg (≈15% of 68 kg equivalent), modeled as uniform cylinder (L=0.8 m, r=0.1 m). Inertia tensor about CoM (principal axes, kg m²): [[0.558, 0, 0], [0, 0.558, 0], [0, 0, 0.05]] This integrates with prior torque (+0.41 Nm) for realignment. Your system's…

This approach misses how human movement works. When you isolate the arm, you cut off its connection to the torso. When you force a back leg action, you often disrupt the timing of the pelvis and spine. Over‑cueing distal pieces causes compensations elsewhere

#LaQ 脚部 足と胴が分割されてるっぽく見える様に調整した。 中の強度上げたり接地面も広くなったから腕の軽量化要らなかったかも。

膝の損傷の調査のために，市民ランナーが10kmの走行を実施．膝関節の内部負荷特性を有限要素モデルで定量 半月板，脛骨軟骨，前十字靭帯（ACL），後十字靭帯（PCL），内側側副靭帯，外側側副靭帯（LCL）は立脚期のほとんどの局面で，非利き脚により大きな負荷 pubmed.ncbi.nlm.nih.gov/41250115/ 続く

🔴 Piriformis Self-administered Dynamic Release⁠ ⁠ Video clip from the online course "Lumbopelvic Hip Complex Dysfunction (LPHCD)":⁠ ⁠ Watch the full video and take the course!⁠ Go to our profile 👉brookbushinstitute.com/courses/predic…

Although we tend to divide the latissimus dorsi into functional regions from top to bottom, there are data suggesting that some variations also occur mediolaterally. Exactly how these regions could be targeted by exercise selection is unclear, however.