Fig. 2
From: Effect of toe exercises and toe grip strength on the treatment of primary metatarsalgia
Measurement of TGS. a Measurement in the seated position, foot is placed on the positioning bar and strapped tightly to the device. The patients sat on a chair adjusted to their height with their knee and hip joints precisely at 90°. Then, the floor is pressed as firmly as possible with the foot. b The greatest value (Newton: N) while the toes are gripping (red arrow) is automatically recorded as the maximal peak force on the black box screen (red circle)