Peer-review is considered the "gold standard" of evaluating original scientific work. Two or three independent experts are invited by the (associate) editor to complete their evaluation within 2 to 6 weeks. 

Peer-review includes critical scrutinizing of scientific ideas providing constructive and fair feedback. Both the authors and reviewers benefit from this process.  Here are the journals listed that I am occasionally and regularly reviewing for:

Age

Aging Clinical and Experimental Research

American Journal of Preventive Medicine

Annals of Behavioral Medicine

Applied Clinical Informatics

Applied Physiology, Nutrition, and Metabolism

Archives of Gerontology and Geriatrics

Archives of Physical Medicine and Rehabilitation

Asian Journal of Sports Medicine

Austrian Research Promotion Agency

Biology of Sport

Biomed Research International

BMC Geriatrics

BMC Public Health

BMC Sports Science, Medicine and Rehabilitation

BMJ

BMJ Open
BMJ Open Sport & Exercise Medicine

Brain and Behavior

Bundesamt für Sport der Schweiz (BASPO)

Cardiology and Angiology: An International Journal

Child: Care, Health and Development

Climacteric

Clinical Interventions in Aging

Clinical Neurology and Neurosurgery

Complementary Therapies in Medicine

Deutsche Zeitschrift für Sportmedizin

Disability and Rehabilitation

European Journal of Applied Physiology

European Journal of Pediatrics

European Journal of Physiotherapy

European Journal of Sport Science (Associate Editor)

Experimental Biology and Medicine

Experimental Brain Research

Experimental Gerontology

European Psychiatry

European Research Council (ERC)

Frontiers in Pediatrics

Frontiers in Physiology (Guest Editor for Frontiers Topic)

Frontiers in Psychiatry (Associate Editor)

Frontiers in Public Health

Gait & Posture

Games for Health Journal

Gerontology

Human Movement Science

IEEE Journal of Biomedical and Health Informatics

Internal Journal of Chronic Obstructive Pulmonary Disease

International Journal of Environmental Research and Public Health

International Journal of Sport and Exercise Psychology

International Journal of Sports Physiology and Performance

Journal of Applied Biomechanics

Journal of Athletic Enhancement

Journal of Biomechanics

Journal of Clinical and Experimental Neuropsychology

Journal of Clinical Medicine

Journal of Endocrinological Investigation

Journal of Exercise Science & Fitness

Journal of Functional Morphology and Kinesiology

Journal of Manipulative and Physiological Therapeutics

Journal of Motor Behavior

Journal of Neuroengineering and Rehabilitation

Journal of Obesity

Journal of Occupational and Environmental Medicine

Journal of Pain Research

Journal of Physical Activity & Health

Journal of Science and Medicine in Sport

Journal of Sport and Health Science

Journal of Sport Sciences (Advisory Board)

Journal of Strength and Conditioning Research

Kinesiology

Medicine

Manual Therapy

Medicine & Science in Sports & Exercise

Muscle & Nerve

Neuropsychiatric Disease and Treatment

Neuroscience & Biobehavioral Reviews

Patient Preference and Adherence

Pediatric Exercise Science

Perceptual and Motor Skills

Physical & Occupational Therapy in Geriatrics

Physikalische Medizin, Rehabilitationsmedizin, Kurortmedizin

Physiological Reports

Physiotherapy Theory and Practise

PLOS One (Associate Editor)

Psychophysiology

Research in Sports Medicine

Research Quarterly for Exercise and Sport

Scandinavian Journal of Medicine and Science in Sports

Science and Medicine in Football

Science and Sports

Scientific Reports

Scientific World Journal

Sports

Sports Biomechanics

Sports Medicine

Sports Medicine and Rehabilitation Journal 

Sportwissenschaft

Transactions on Neural Systems & Rehabilitation Engineering