Lower Extremity Biomechanics
Lower Extremity Biomechanics During the Landing of a Stop-Jump Task
The purpose of this journal article was to compare the kinematics of the lower body to the force that occurs during a stop-jump motion, the motion when an individual stops quickly and then jumps vertically. This motion can be seen below in Figure 1. The article found that large hip and knee flexion angles and initial foot contact with the ground do not have an effect on the impact forces during the landing of the jump. However, active hip and knee flexion motions do have an effect on the impact forces.
Figure 1. Stop-Jump Motion
Link:
http://www.sciencedirect.com/science/article/pii/S0268003305002603
Equipment Needed:
High-speed camera
Goniometer
Force plate
Willing test subjects
Ice Breakers & Name Games are a great way to get people to learn each other’s names, find out interesting things about one another, and help people begin new relationships. Aside from name games, icebreakers provide a way to establish common ground between participants, get everyone moving, and create an inviting environment. Ice Breakers and name games are especially important for floor meetings and community interactions - in fact, leading fun ice breakers helps set ground rules, ease anxiety, and start the floor meeting/program/community interaction off on the right foot.
Tips for Using Ice Breakers Successfully:
Using ice breakers successfully is similar to being able to tell a good story: you need to know your audience (delivery is everything!), and good stories build up intensity as they go along. And props never hurt if you have them…
1. Know your audience. Before deciding which activities to use, assess the group for the following: age, familiarity with one another, purpose of the group gathering, and potential considerations for physical abilities. 2. Build in intensity. A general rule of thumb is a start with activities with limited movement, minimal physical contact,
The purpose of this journal article was to compare the kinematics of the lower body to the force that occurs during a stop-jump motion, the motion when an individual stops quickly and then jumps vertically. This motion can be seen below in Figure 1. The article found that large hip and knee flexion angles and initial foot contact with the ground do not have an effect on the impact forces during the landing of the jump. However, active hip and knee flexion motions do have an effect on the impact forces.
Figure 1. Stop-Jump Motion
Link:
http://www.sciencedirect.com/science/article/pii/S0268003305002603
Equipment Needed:
High-speed camera
Goniometer
Force plate
Willing test subjects
Ice Breakers & Name Games are a great way to get people to learn each other’s names, find out interesting things about one another, and help people begin new relationships. Aside from name games, icebreakers provide a way to establish common ground between participants, get everyone moving, and create an inviting environment. Ice Breakers and name games are especially important for floor meetings and community interactions - in fact, leading fun ice breakers helps set ground rules, ease anxiety, and start the floor meeting/program/community interaction off on the right foot.
Tips for Using Ice Breakers Successfully:
Using ice breakers successfully is similar to being able to tell a good story: you need to know your audience (delivery is everything!), and good stories build up intensity as they go along. And props never hurt if you have them…
1. Know your audience. Before deciding which activities to use, assess the group for the following: age, familiarity with one another, purpose of the group gathering, and potential considerations for physical abilities. 2. Build in intensity. A general rule of thumb is a start with activities with limited movement, minimal physical contact,