Swining Arm Locomotion

Hi, I have a script that moves the player in front when he waves his hands. I would like to add a line to it, which will allow to start the movement only if the player starts waving with the left hand. Any ideas how to do this?

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.InputSystem;
 
 public class WalkInPlaceLocomotion : MonoBehaviour
 {
     [SerializeField] CharacterController characterController;
 
     [SerializeField] GameObject leftHand, rightHand;
 
     Vector3 previousPosLeft, previousPosRight, direction;
 
     Vector3 gravity =  new Vector3(0, -9.8f, 0);
 
     [SerializeField] InputActionReference leftcontrollerReference;
 
     [SerializeField] InputActionReference rightcontrollerReference;
 
     public GameObject ForwardDirection;
 
     [SerializeField] float speed = 4;
     // Start is called before the first frame update
     void Start()
     {
         SetPreviousPos();
     }
 
     // Update is called once per frame
     void Update()
     {
         //Calculate the velocity of the player hand movement 
         Vector3 leftHandVelocity = leftHand.transform.position - previousPosLeft;
         Vector3 rightHandVelocity = rightHand.transform.position - previousPosRight;
         float totalVelocity = +leftHandVelocity.magnitude * 0.8f + rightHandVelocity.magnitude * 0.8f;
 
         if(totalVelocity >= 0.05f
             && leftcontrollerReference.action.IsPressed()
             && rightcontrollerReference.action.IsPressed()
             && Time.timeSinceLevelLoad > 1f)//If true Player has swing their hand
         {
             //getting the direction that the player is facing
             direction = Camera.main.transform.forward;
             //move the player using character controller
             characterController.Move(speed * Time.deltaTime * Vector3.ProjectOnPlane(direction, Vector3.up));
         }
 
         //Applying gravity
         characterController.Move(gravity * Time.deltaTime);
         SetPreviousPos();
     }
 
     void SetPreviousPos()
     {
         previousPosLeft = leftHand.transform.position;
         previousPosRight = rightHand.transform.position;
     }
 }