Response: Torque on knee (Newton meters, Nm)
Conditions: Feet Neutral, Feet Back, Feet Staggered
Material: 15 older men with Total Knee Arthroplasty (TKA)
Standing from a seated position generates stress on the knee joint. The purpose of the
experiment is to discover which method of standing generates the least amount of torque
on the knees. This is especially important in older individuals who have had knees
replaced (Total Knee Arthroplasty, TKA).
Control of Outside Variables:
The experiment is done with older males. All participants have had TKA. The height of
the chair will be the same for all trials. All participants will be wearing comfortable
clothes and tennis shoes.
Randomization:
Each participant will experience all of the conditions. The order will be randomly
assigned for each participant. This is a randomized complete block design where blocks
are formed by reusing the participants.
Replication:
There are 15 participants.
Data:
Subject
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Mean
Std Dev
Feet Neutral
26.3
22.7
21.1
25.9
25.6
22.5
26.1
21.4
17.4
22.8
23.0
18.4
29.6
27.4
31.3
24.1
3.8582
Feet Back
23.0
19.7
20.0
23.3
21.1
19.9
23.4
18.8
17.7
21.9
22.2
17.3
25.5
23.2
28.5
21.7
2.9835
Feet Staggered
21.3
19.8
19.5
22.4
18.5
19.6
22.5
19.0
16.6
20.0
22.1
18.6
21.8
22.3
26.5
20.7
2.3719