Strava\API\Service\REST::createActivity PHP Method

    public function createActivity($name, $type, $start_date_local, $elapsed_time, $description = null, $distance = null)
    {
        $path = '/activities';
        $parameters = array('name' => $name, 'type' => $type, 'start_date_local' => $start_date_local, 'elapsed_time' => $elapsed_time, 'description' => $description, 'distance' => $distance);
        $result = $this->adapter->post($path, $parameters, $this->getHeaders());
        return $this->format($result);
    }