Martin D. Hoffman

Relationships among heart rate, lactate concentration, and perceived effort for different types of rhythmic exercise in women.

P. Clifford, M. Hoffman, M D Hoffman, 1996, Archives of physical medicine and rehabilitation.

Energy expenditure with indoor exercise machines.

P. Clifford, M. Hoffman, M D Hoffman, 1996, JAMA.

Poling forces during roller skiing: effects of technique and speed.

P. Clifford, M. Hoffman, R. Candau, 1998, Medicine and science in sports and exercise.

Physiological aspects of competitive cross-country skiing.

P. Clifford, M. Hoffman, M D Hoffman, 1992, Journal of sports sciences.