STOAD / RESEARCH
See what changes as the backrest reclines. Then read what the research actually examined.
SeatedSame camera and scale. Model positions, not the hip angles measured in the studies.
STOAD 01 / PRODUCT VISUALISATION
None of the studies below tested STOAD 01.
These studies examine how hip angle relates to rectus femoris responses during leg extensions. They measure different outcomes and cannot be combined into one effect measure.
None of the studies tested STOAD 01. This is a source overview, not a systematic review or a product endorsement.
THREE PRIMARY SOURCES
22 untrained men · 10 weeks · 2 sessions a week
Leg extensions at 40° and 90° hip flexion. Muscle thickness was measured with ultrasound.
Greater rectus femoris growth at 40°. No difference in vastus lateralis.
A specific group and two angles. This does not show that lying flat is better than 40°, and the study did not test STOAD 01.
9 male bodybuilders · acute MRI study
Leg extensions at 0°, 40° and 80° hip flexion. MRI was performed before and after one session.
Greater T2 changes in the proximal and middle rectus femoris at 0° and 40° than at 80°.
T2 is an acute MRI response. It does not establish long-term growth or show that STOAD 01 produces the same effect.
9 male bodybuilders · static positions
Three knee positions were examined at 0°, 40° and 80° hip flexion using elastography and EMG.
At 30° knee flexion, proximal muscle stiffness was higher at 0° and 40° than at 80°.
No corresponding EMG difference. Stiffness is not muscle growth; this was not a long-term training study.
THE TERMS
The angle between torso and thigh. It changes as the backrest reclines. The model’s backrest angle is not automatically the same measurement as in the studies.
One of the four quadriceps muscles. It crosses both the hip and knee joints.
An image-based response that can change after activity. An acute T2 change is not a direct measure of future muscle growth.
Elastography estimates tissue stiffness. EMG records electrical muscle activity. Neither alone measures hypertrophy.
FROM RESEARCH TO DEVELOPMENT
See what the physical prototype demonstrates and what needs documenting before a finished product.
View product statusSTOAD 01 · FØRDE, NORWAY
See how the backrest moves independently of the seat pad’s angle in the model.
Try the backrest adjustment