1 Isotonic -a muscle fiber contraction in which force production is unchanged when the muscle contracts causing movement of an external load.  Isokinetic -a muscle fiber contraction in which force production of the contraction is sufficient to overcome the external load.
HIV/AIDS. HIV Risk Behaviors. The risk of getting HIV varies widely depending on the type of exposure or behavior (such as sharing needles or having sex without a condom). Some exposures to HIV carry a much higher risk of transmission than other exposures.
So you claim to wear condoms most of the time, but when examining your most recent sexual romps, the details of them are a little hazy. Maybe you wore a condom, but maybe you didnât. Drugs and alcohol are one of the biggest risk factors when it comes to the spread of HIV. If you know that your likelihood of wearing a rubber decreases as the drinks start to flow, you may want to take a sobering look at just how risky your behavior may be.