First of all, yoga and meditation are not two different words (unless your reference to yoga is for the physical postures alone). Meditation is an integral part of the discipline of Yoga that encompasses several practices including yogasana (postures), pranayama (breathing techniques), dhyana (meditation).
Considering your question as effects of integrating Meditation with postures, I would recommend you to read about Cyclic Meditation, that combines both. You could refer to the links given below.
Thank you so much for the links to research papers. You are quite right to highlight my error in not specifying physical postures, rather than 'yoga'. I appreciate all your comments.
Yoga our creator has given & offer us everything thru our physical body right from head to the leg for the every movement for our life. Every bodily part is important & essential to carry out the action of our life but the more important is that every bodily function may help us to realize the essence of our divinity within every of us.
We can realize & achieve thru medium of our Yoga practice .Yoga practice is for our spiritual mission of our life. It helps us thru our mind & brain for controlling the energy & effective force of our brain.
Besides with the help of Yoga we can control our other physical structure of body but with our brain thru center force of our forehead giving the inspiring grace in the form of intuition & with the regular practice of Yoga ,our eyes may help us to visualize the cosmic atmosphere.
In the line with the above ,Meditation may turn out to the blessing in the form of concentration ,peace ,tranquility in the process of meditation this may help us to process the progressive path of our life under the calmness in our working environment & to make us all the pleasurable ,peace with our family & social fabrics .
Thank you very much for all your comments. They certainly chime with my own thoughts. For my dissertation, I will certainly be reflecting back to the original foundations of yoga in my MA dissertation.
To keep in line with the an evidenced based piece of research, I am using contemporary scientific research, to try and prove that all aspects of yoga, pranayama and meditation, combine to provide greater health benefits, rather than practising meditation or postural yoga individually.
Thank you again for taking the time to provide a spiritual approach to this issue, it is much appreciated.
You might want to consider meditation as any and all practices developed in order to train our attention (being Yoga one of its many modalities).
It´s somehow already mentioned but I´d like to add that "mindless" Yoga postures would probably make the practice a mere type of athletic training (which however beneficial, would loose much of its healing power), whereas paying attention to breath and the postures themselves (as well as what sensations and feelings arise while doing the practice) is already a form of meditation (moving meditation that is).