Bathing BeachesWalkingChromosome WalkingBiomechanical PhenomenaGait Disorders, NeurologicFloridaSeawaterLocomotionRecreationGreat Lakes RegionEnvironment DesignWater PollutionSilicon DioxideOrthotic DevicesWater QualityWater MovementsGeologic SedimentsFootAnkle JointEnterococcusExercise TestPostural BalanceWalkersIntermittent ClaudicationAnkleCanesTransportationExercise TherapyElectromyographyLegAccelerationShoesWater MicrobiologyFresh WaterMobility LimitationGulf of MexicoEstuariesWeight-BearingRunningSuntanMotor ActivityPetroleum PollutionCrutchesArtificial LimbsSwimmingTurtlesSoil MicrobiologyMuscle, SkeletalTime FactorsOceans and SeasLaurusLower ExtremityBicyclingMonitoring, AmbulatoryEnergy Metabolism