Hemiparesis resulting from a stroke has a direct impact on patients’ daily activities. New approaches for motor rehabilitation include Serious Games (SG) because they include (in a motivating way) the three fundamental elements for rehabilitation: intensive, repetitive and task-oriented training. This study aims to evaluate the therapeutic effects of a biomedical SG and a scoring system developed for lower limb motor rehabilitation of hemiparetic stroke patients. The SG was inspired by the classic videogame called Pong, where the goal is to control a tennis racquet, but using muscular strength. A knee extensor apparatus was adapted with a load cell and mechanical adjustments for measuring the muscular strength of the quadriceps femoris (QFG) and hamstrings (HSG). A scoring system was proposed to evaluate muscular control. Eleven hemiparetic stroke patients participated in an exercise program using the SG twice a week for ten weeks and only the paretic side was trained. Significant Effect Sizes ( ${d}$ ) were found for QFG strength ( ${d}={0.5};{p}={0.021}$ ), QFG control ( ${d}={1.1}; {p} < {0.001}$ ), HSG strength ( ${d}={1.1}; {p} ={0.001}$ ), HSG control ( ${d}={1.5}; {p} ={0.003}$ ), functional mobility ( ${d}={0.3}; {p} < {0.001}$ ), gait speed ( ${d}={0.4}; {p}={0.007}$ ) and motor recovery ( ${d}={1.0}; {p} < {0.001}$ ). Results indicate that the intervention of a SG with both proper apparatus and evaluation system may effectively promote lower limb motor rehabilitation of hemiparetic stroke patients.

中文翻译：

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偏瘫患者下肢运动康复的生物医学严肃游戏系统

中风引起的偏瘫直接影响患者的日常活动。运动康复的新方法包括严重游戏（SG），因为它们包括（以激励方式）康复的三个基本要素：强化，重复和面向任务的培训。这项研究旨在评估生物医学SG和计分系统为偏瘫性中风患者下肢运动康复开发的治疗效果。SG的灵感来自经典的电子游戏Pong，其目标是控制网球拍，但要使用肌肉力量。膝伸肌器械配有测力传感器和机械调节装置，用于测量股四头肌（QFG）和绳肌（HSG）的肌肉力量。提出了评估肌肉控制的评分系统。11名中风偏瘫患者每周两次使用SG参加一项运动计划，持续10周，并且仅训练了偏瘫患者。显着效果大小（ $ {d} $ ）被发现的QFG强度（ $ {d} = {0.5}; {p} = {0.021} $ ），QFG控制（ $ {d} = {1.1}; {p} <{0.001} $ ），HSG强度（ $ {d} = {1.1}; {p} = {0.001} $ ），HSG控制（ $ {d} = {1.5}; {p} = {0.003} $ ），功能移动性（ $ {d} = {0.3}; {p} <{0.001} $ ），步态速度（ $ {d} = {0.4}; {p} = {0.007} $ ）和电机恢复（ $ {d} = {1.0}; {p} <{0.001} $ ）。结果表明，适当的仪器和评估系统对SG的干预可以有效促进偏瘫性脑卒中患者的下肢运动康复。