PROGRESSIVE STRENGTH BASELINE
Controlling weight during a movement includes receiving a set of parameters comprising a nominal weight. It further includes detecting speed during a concentric phase. It further includes progressively adjusting weight during the concentric phase based on the detected speed and the nominal weight.
1 . (canceled)
2 . A system, comprising:
a motor, wherein a cable is coupled between an actuator and the motor; and
a controller configured to control torque of the motor to progressively adjust an amount of resistance provided during a concentric phase of a repetition of a movement according to a rate of weight change that is determined based at least in part on:
a first value comprising a fixed rate of weight change that is based at least in part on whether a detected cable speed is above or below a target speed; and
a second value that is proportional to a difference between the detected cable speed and the target speed.
3 . The system of claim 2 , wherein the rate of weight change comprises an amount of weight to add or reduce per unit time.
4 . The system of claim 2 , wherein the target speed is determined based at least in part on at least one of historical data associated with a user, or demographic data associated with the user.
5 . The system of claim 2 , wherein the detected speed is based at least in part on measuring a change in position of the cable over time.
6 . The system of claim 2 , wherein progressively adjusting the amount of resistance provided is based at least in part on a count of the repetition.
7 . The system of claim 2 , further comprising one or more processors configured to determine an N-rep max, and wherein N is greater than one.
8 . The system of claim 7 , wherein the N-rep max is used to determine a suggested weight for a subsequent set of the movement.
9 . The system of claim 2 , wherein the repetition is included in a calibration set.
10 . The system of claim 9 , wherein the calibration set is included in a workout in response to an indication that calibration should be performed.
11 . The system of claim 10 , wherein the calibration set is included in the workout based at least in part on at least one of a period of user inactivity or an injury status of a user.
12 . A method, comprising:
controlling torque of a motor to progressively adjust an amount of resistance provided during a concentric phase of a repetition of a movement according to a rate of weight change that is determined based at least in part on:
a first value comprising a fixed rate of weight change that is based at least in part on whether a detected cable speed is above or below a target speed, wherein a cable is coupled between an actuator and the motor; and
a second value that is proportional to a difference between the detected cable speed and the target speed.
13 . The method of claim 12 , wherein the rate of weight change comprises an amount of weight to add or reduce per unit time.
14 . The method of claim 12 , wherein the target speed is determined based at least in part on at least one of historical data associated with a user, or demographic data associated with the user.
15 . The method of claim 12 , wherein the detected speed is based at least in part on measuring a change in position of the cable over time.
16 . The method of claim 12 , wherein progressively adjusting the amount of resistance provided is based at least in part on a count of the repetition.
17 . The method of claim 12 , further comprising determining an N-rep max, and wherein N is greater than one.
18 . The method of claim 17 , wherein the N-rep max is used to determine a suggested weight for a subsequent set of the movement.
19 . The method of claim 12 , wherein the repetition is included in a calibration set.
20 . The method of claim 19 , wherein the calibration set is included in a workout in response to an indication that calibration should be performed.
21 . The method of claim 20 , wherein the calibration set is included in the workout based at least in part on at least one of a period of user inactivity or an injury status of a user.