Boots – shoes – and leggings
Patent
1990-11-20
1993-11-09
Envall, Jr., Roy N.
Boots, shoes, and leggings
364410, 482 1, 482 4, 482 5, 482 6, 482 7, 482 8, 482 79, 482 96, 482132, 482135, 482110, 482114, 482116, 482121, G06F 1500, A63B 21015
Patent
active
052608700
ABSTRACT:
An apparatus for measuring the instantaneous power generated by a leg extension, which includes a seat provided above a drive system unit on which a subject is seated. A slide rail extends forwardly from the drive system unit, and a foot plate slides along the slide rail in forward and backward directions. A rope connected to the foot plate is provided in the drive system unit in order to be paid out in response to the forward sliding movement of the foot plate. This apparatus also includes a transmission device, which rotates in response to the rope paying-out and a powder brake, which is rotated by the transmission device. A foot load sensor is also mounted on the foot plate in order to detect the foot load developed when the subject extends his/her legs, and a rotation frequency sensor is provided at a predetermined position within the drive system unit in order to detect the rotation frequency of the powder brake. In addition, a processing unit is used to calculate the average speed, the average muscle power, the average power and the peak power generated by the subject's legs, according to the detection signals from the foot load sensor and the rotation frequency sensor. These calculations are visually and auditorially displayed to the subject by an indicator device.
REFERENCES:
patent: 3387493 (1968-06-01), Strittmatter
patent: 3734495 (1973-05-01), Nist et al.
patent: 3820782 (1974-06-01), Salkeld
patent: 4550908 (1985-11-01), Dixon
patent: 4621620 (1986-11-01), Anderson
patent: 4702108 (1987-10-01), Amundsen et al.
patent: 4714244 (1987-12-01), Kolomayets et al.
patent: 4735410 (1988-04-01), Nobuta
patent: 4765613 (1988-09-01), Voris
patent: 4786051 (1988-11-01), Mullican
patent: 5072929 (1991-12-01), Peterson et al.
patent: 5096134 (1992-03-01), Sakano
"Rowing maching with break element . . . " Fichtel & Sachs AG inventor-Dumbser et al. Apr. 4, 1987.
"Computer programmable exercise apparatus . . . " by Oosthuizen AD Apr. 2, 1987.
Ito Masao
Tsuchiya Kunimasa
Combi Corporation
Envall Jr. Roy N.
Shingala Gita D.
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